What is the value of x? (hint: use the measure of XYZ) will mark brainliest​

What Is The Value Of X? (hint: Use The Measure Of XYZ) Will Mark Brainliest

Answers

Answer 1
3x+5+2x-5=180
5x=180
x=36

I believe this is how you do it I haven’t done geometry in a year

Related Questions

Can someone please help me with this it would mean so much-

Answers

Answer:

124°

Step-by-step explanation:

MLI=56°

JIG=180°-56°

=124°

An insurance company, based on past experience, estimates the mean damage for a natural disaster in its area is $5,000. After introducing several plans to prevent loss, it randomly samples 200 policyholders and finds the mean amount per claim was $4,800 with a standard deviation of $1,300. Does it appear the prevention plans were effective in reducing the mean amount of a claim? use the 0. 05 significance level. A. What is the decision rule? (negative amount should be indicated by a minus sign. Round your answer to 3 decimal places. )

Answers

In this case, the population consists of an insurance company's policyholders. The sample consists of his 200 policyholders under study. The sample size is 200.

H0: µ ≥ $5,000

Ha: µ < $5,000 (claimed)

As we can see that the sample size is 200, which is way greater than 30, so a z-test is appropriate here.

z(test) = (4800 - 5000) / (1300 / √200) = -2.1757

p (z = -2.1757) = 0.0148

The critical z-value for the left-sided test at α = 0.05 is -1.645

The tested value of z is less than the critical value, so we reject the null hypothesis. The hypothesis drawn here ( null hypothesis) will be rejected as an alternate decision because the p-value is less than the significance level (0.05).

At the 0.05 significance level, the prevention plan effectively reduced the average amount of harm. Insurers should continue these plans and try to improve them where possible.

More problems related to Insurance policies are in the link below.

https://brainly.com/question/16890229?referrer=searchResults

#SPJ4

add 8 in the hundreds place 724,062.58

Answers

Answer:

724,862.58

Step-by-step explanation:

7 (hundred thousands)

2 (ten thousands)

4 (one thousands)

,

0 (hundreds)

6 (tens)

2 (ones)

.

5 (tenths)

8 (hundreths)

Answer:

I think that your answer would be 724,862.58

Step-by-step explanation:


Simplify each number. 32 . 256¹/₂

Answers

32. [tex]256^{\frac{1}{2} }[/tex] can be simplified into 512.

Prime factorization is the process of breaking down a number into its prime factors. Multiplying these prime numbers gives back the original number.

Prime factorization of 32 = 2 x 2 x 2 x 2 x 2 = [tex]2^{5}[/tex]

Prime factorization of 256= 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = [tex]2^{8}[/tex]

According to the law of indices, if a term with a power is raised to a power, then the powers are multiplied together.

i.e., [tex](x^{m})^{n} = x^{mn}[/tex]

Another law of indices says that if two terms having same base are multiplied together, then their indices are added.

i.e., [tex]a^{m} . a^{n } =a^{m+n}[/tex]

According to the given condition,

∴[tex]32 = 2^{5}[/tex]

[tex]256^{\frac{1}{2}} = (2^{8})^{\frac{1}{2} }[/tex]

∴ 32. [tex]256^{\frac{1}{2} }[/tex]  = [tex]2^{5}[/tex] × [tex](2^{8})^{\frac{1}{2} }[/tex]

Applying the laws of indices mentioned above,

32. [tex]256^{\frac{1}{2} }[/tex]  = [tex]2^{5}[/tex] × [tex](2^{8 X }^{\frac{1}{2} })[/tex]

= [tex]2^{5}[/tex] × [tex]2^{4}[/tex]

= [tex]2^{5 + 4}[/tex] = [tex]2^{9}[/tex]

= 512.

Thus, 32. [tex]256^{\frac{1}{2} }[/tex] can be simplified into 512.

To learn more about laws of indices, refer to this link:

brainly.com/question/27432311

#SPJ4

PLSS HELPP MEE!!!!!! A biker traveled 20 miles in 4 hours. A unit rate to describe this would be 5 miles per hour. What is another unit rate in this situation? (4 points)

a
1 over 5 mile per hour

b
1 over 5 hour per mile

c
1 mile per hour
d
5 hours per mile

Answers

Answer:

5miles : 1hour

Step-by-step explanation:

source: trust me

no really dont

Question 11 and 12 need help

Answers

Answer:

This is for #12

-2 > x

set notation: {x│x < -2}

interval notation: x∈(-∞, -2)  

Step-by-step explanation:

-3(x+2) > 10+5x

-3x-6 > 10+5x

+3x           +3x

-6 > 10+8x

-10   -10

-16 > 8x

÷8    ÷8

-2 > x

set notation: {x│x < -2}

interval notation: x∈(-∞, -2)

The sides of a triangle
it's longest attitude:
are 35cm, 54cm and 61cm, respectively. The lenght of

Answers

The length of the longest altitude of the triangle is 24 √5 cm.

The sides of the triangle that are given are:

35 cm, 54 cm and 61 cm

We need to find the longest altitude of the triangle.

We know that:

s = ( a + b + c ) / 2

s = ( 35 + 54 + 61 ) / 2

s = 150 / 2

s = 75

s - a = 75 - 35

s - a = 40

s - b = 75 - 54

s - b = 21

s - c = 75 - 61

s - c = 14

Area, A = √ s (s − a)(s − b)(s − c)

A = √ 75 (40) (21) (14)

A = 420 √ 5 cm²

Now, area is also equal to:

Area = 1 / 2 × b × h

420 √5 = 1 / 2 × 35 × h

h = 420 √ 5 × 2 ÷ 35

h = 24 √5 cm

Therefore, the length of the longest altitude of the triangle is 24 √5 cm.

Learn more about altitude here:

https://brainly.com/question/1159693

#SPJ9

A line that includes the points (h,3) and (9, –3) has a slope of –1. What is the value of h?

Answers

The value of h is 3

How to find a point in a coordinates using the slope?

The line that includes the point (h, 3) and (9, -3) has a slope of -1.

Using the slope intercept equation,

y = mx + b

where

m = slopeb = y-intercept

Therefore,

y = mx + b

y = -x + b

using (9, - 3)

-3 = - 9 + b

b = -3 + 9

b = 6

Therefore, the equation is as follows:

y = -x + 6

using (h, 3)

y = -(h) + 6

3 = -h + 6

-h = 3 - 6

-h = -3

h = 3

Therefore, the value of h is 3.

learn more on slope here: https://brainly.com/question/13724957

#SPJ1

Question 10
When choosing a loan, which of the following scenarios is best?

1Points
A
lower APR, shorter loan, and extra principal payments

B
lower APR, longer loan, and extra interest payments

C
higher APR, shorter loan, and make interest payments

Answers

When choosing a loan, the best scenario is lower APR, shorter loan, and extra principal payments.

How to illustrate the information?

A loan is a type of debt that a person or other entity incurs. The lender advances the borrower a certain amount of money, typically on behalf of a business, financial institution, or government. The borrower accepts a specific set of terms in return, which may include any financial costs, interest, a repayment schedule, and other requirements.

APR represents the total yearly cost of a loan to the borrower, including all fees. The APR is stated as a percentage, just like an interest rate. It does, however, contain other costs or fees such as mortgage insurance, the majority of closing costs, discount points, and loan origination fees, unlike an interest rate. It should be noted that the APR simply means the annual percentage rate which is the interest that's generated on the amount borrowed.

Therefore, it should be noted that when choosing a loan, the best scenario is a lower APR, shorter loan, and extra principal payments

This is important in order to reduce the value that the person will pay and make it easier to return the loan.

Learn more about loans on:

brainly.com/question/26011426

#SPJ1

what is the probability that at least one of the top three cards in a well shuffled deck of cards is a jack, queen, or king?

Answers

The probability that at least one of the top three cards is a jack, queen, or king is 0.289%.

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true.

A deck has a total of 52 cards.

A deck of cards has four jacks.

A deck of cards has four queens.

A deck of cards has four kings.

The total number of jacks, queens, and kings is 4 + 4 + 4 = 12.

Then the probability that at least one of the top three cards is a jack, queen, or king will be:

P = ( 12 / 52 ) × ( 8 / 51 ) × ( 4 / 50 )

P = ( 6 / 26 ) × ( 8 / 51 ) × ( 2 / 25)

P = 96 / 33150

P = 0.289%

Learn more about probability here:

https://brainly.com/question/13604758

#SPJ9

a plumber charges 70$ for fixing a leak plus 24$ per hour for his labor the plumber charged a total of 262$ write an equation to model the problem

Answers

Answer: (262 - 70) ÷ 24

Step-by-step explanation:


Write each equation in logarithmic form.
8=(1/2)⁻³

Answers

The logarithmic form of 8 = (1/2)⁻³ is given by log₍₁/₂₎(8) = -3.

The logarithm is exponentiation's opposite function in mathematics. This means that the logarithm of a fixed number, base b, represents the exponent to which that fixed number must be raised in order to create a particular number x.. The logarithm counts the number of times the same factor appears during repeated multiplication in the simplest scenario.

The given exponential form of the equation is 8 = (1/2)⁻³

To transform this exponential form into logarithmic form, we are requested.

Consider the given exponential form: 8 = (1/2)⁻³

Taking logarithm on both sides with the base as (1/2), we get,⇒ log₍₁/₂₎(8) = log₍₁/₂₎(1/2)⁻³

Now using the logarithmic rule logₐ(aⁿ) = n × logₐ(a) in the RHS of the above equation, we get

⇒ log₍₁/₂₎(8) = (-3) × log₍₁/₂₎(1/2)

⇒ log₍₁/₂₎(8) = (-3) × 1                  

(Since logₐ(a) = 1, for a &gt; 0)

⇒ log₍₁/₂₎(8) = -3

Therefore, the logarithmic form of 8 = (1/2)⁻³ is given by log₍₁/₂₎(8) = -3.

Learn more about logarithmic form here https://brainly.com/question/25710806

#SPJ4

Example: if XYZ - RST, find the value of x.

Answers

Answer:

x = 12

Step-by-step explanation:

since the triangles are similar then the ratios of corresponding sides are in proportion, that is

[tex]\frac{XY}{RS}[/tex] = [tex]\frac{XZ}{RT}[/tex] ( substitute values )

[tex]\frac{5x-3}{3x+2}[/tex] = [tex]\frac{60}{40}[/tex] = [tex]\frac{3}{2}[/tex] ( cross- multiply )

2(5x - 3) = 3(3x + 2) ← distribute parenthesis on both sides )

10x - 6 = 9x + 6 ( subtract 9x from both sides )

x - 6 = 6 ( add 6 to both sides )

x = 12

Please help with question

Answers

Answer:

320

Step-by-step explanation:

Use PEMDAS - order of operations

5(2)^2 + 3(10)^2

5 x 4 + 3 x 100

20 + 300

320

Alissa has two pieces of carpet runner one is 2 1/3 yards long and the other is 3 1/3 yard long she needs 10 yards of carpet runner altogether how much more does she need to buy

Answers

4 1/2 years long two pieces

HELP ASAP ONLY IF YOU KNOW THE ANSWER
Decide if the following biconditional statement is true or false:
Two angles are congruent if and only if they are vertical angles
True or false?

Answers

Answer: TRUE

Step-by-step explanation:

i got it right.

Create two ratios that are equivalent to 1/3 using multiplication

Answers

the three equivalent ratios to the ratio 1 : 3 will be 2 : 6 , 3 : 9 and 4 : 12.

We are given a fraction 1 / 3

This can also be written as a ratio as 1 : 3

Now, the equivalent ratios to it will be:

First one:

1 × 2 : 3 × 3

= 2 : 6

Second one:

1 × 3 : 3 × 3

= 3 : 9

Third one:

1 × 4 : 3 × 4

= 4 : 12

Therefore, the three equivalent ratios to the ratio 1 : 3 will be 2 : 6 , 3 : 9 and 4 : 12.

Learn more about ratio here:

https://brainly.com/question/2328454

#SPJ9


Identify each function or situation as an example of exponential growth or decay. What is the y -intercept?

c. You put $ 2000 into a college savings account for four years. The account pays 6% interest annually.

Answers

The function is exponential growth function and the y- intercept is (0,$2000).

Given that the we put $ 2000 into a college savings account for four years and the account pays 6% interest annually.

Exponential growth or decay describes the process of reducing or growing an amount by a consistent percentage rate over a period of time and it is represented by the function y=a(1-b)ˣ where, y is the final amount, a is the original amount and b is the growth or decay factor and x is the amount of time passed.

If a is positive and b is greater than 1 then it is exponential growth.

If a is positive and b is less than 1 but greater than 0 then it exponential decay.

When we put $2000 in our college savings account  and we receive  6% annual interest then this situation can be modeled by using equation f(x)=a(1+r)ˣ in which we put a=$2000, r=6%, x=4

Thus we will receive the amount after 4 years:

f(4)=2000(1+(6/100))⁴

Since equation is an exponential growth function so it is also an exponential growth function.

Now, to find the y-intercept we will put x=0.

So, y-intercept is (0,$2000).

Hence, By putting $2000 into a college savings account for four years and the account pays 6% interest annually the function is exponential growth function and the y-intercept is (0,2000).

Learn more about the exponential function from here brainly.com/question/23856879

#SPJ4


Solve each equation. Check your answers. ln x-ln 3=4

Answers

The value of  ln x-ln 3=4 is 163.7

What is logarithm function?

The logarithm is exponentiation's opposite function in mathematics. This indicates that the exponent to which a set number, base b, must be increased in order to create a specific number x, is represented by the logarithm of that number.

given, our equation is -

ln x-ln 3=4

It can be expressed in the form of

⇒ loge (x/3) = 4

⇒ e⁴ = x/3

x = 3e⁴

⇒ 163.7

To learn more about logarithmic function from given link

https://brainly.com/question/22994284

#SPJ4

The name of the figure below is ___ ___.

[ Brainliest + easy points ]

Answers

Answer:

Step-by-step explanation:

I think it´s the polygamous


Expand each logarithm.
log₇49 x y z

Answers

If the expression is log₇49 x y z, then the expansion of the expression is 2+log x/ log 7+log y/log 7 +log z/ log 7.

Given that  expression is log₇49 x y z.

We are required to find the expanded value of the expression.

The change of base formula is basically used to re-write a logarithm operation as a fraction of logarithms with a new base.

The expression is log₇49 x y z.

log₇49xyz= (log 49+log x+log y+log z)/log 7

We know that log mn=log m+ log n.

=log [tex]7^{2}[/tex]/ log 7+log x/log 7+log y/ log 7+ log z/log 7

=2 log 7/log 7+log x/log 7+log y/ log 7+ log z/log 7

=2+log x/log 7+log y/ log 7+ log z/log 7

Hence if the expression is log₇49xyz, then the expanded form is

2+log x/log 7+log y/ log 7+ log z/log 7.

Learn more about base change theorem at https://brainly.com/question/14998693

#SPJ4

An earthquake of magnitude 9.1 occurred in 2004 in the Indian Ocean near Indonesia. It was about 74,900 times as strong as the greatest earthquake ever to hit Texas. Find the magnitude of the Texas earthquake. (Remember that an increase of 1.0 on the Richter scale means an earthquake is 30 times stronger.)
a. Can you write an exponential or logarithmic equation?

Answers

The Magnitude of earthquake that hit Texas is 5.8; The logarithmic equation, in terms of exponents, so formed is: 74900 = [tex]30^M[/tex].

What is Logarithm?The opposite of exponentiation is the logarithm.This indicates that the exponent to which a fixed number, base b, must be raised in order to obtain a specific number x, is represented by the logarithm of that number.A number's natural logarithm is its logarithm to the base of the transcendental and irrational number e, which is roughly equivalent to 2.718281828459.

Given:

Magnitude of earthquake that hit Indian Ocean = 9.1 [tex]I_1[/tex] = Intensity of weaker earthquake[tex]I_2[/tex] = Intensity of greater earthquake.

To find: Magnitude of earthquake that hit Texas.

Finding:

From the given, [tex]\frac{I_2}{I_1}[/tex] gives the ratio of the greater earthquake's intensity to the weaker earthquake's intensity.This ratio, when written as an exponential equation, equals  [tex]30^M[/tex]  where M is the increase in magnitude difference:

=>  [tex]\frac{I_2}{I_1}[/tex] =  [tex]30^M[/tex]

For  [tex]\frac{I_2}{I_1}[/tex] = 74900, the above expression becomes:

=> 74900 = [tex]30^M[/tex]

Taking logarithm on both sides, with base 10 gives:

=> log (74900) = log ([tex]30^M[/tex])

As [tex]log_b(a)^m = m(log_b(a))[/tex],

=> log (74900) = M ( log (30))

=> [tex]\frac{log(74900)}{log (30)}[/tex] = M

=> M ≈ 3.3, i.e., the increase in magnitude difference is approximately 3.3.

Thus, the magnitude of the earthquake that hit Texas = 9.1 - 3.3 = 5.8.

The logarithmic equation, in terms of exponents, so formed is: 74900 = [tex]30^M[/tex]

To learn more about logarithms, refer to the link: brainly.com/question/25710806

#SPJ4

Create a real life context that can be represented by the linear equation y=-2.65x+ 25.

Answers

Answer:

If you have 2 dollars and 65 cents per day, and you get 25 dollar commission.

Step-by-step explanation:


Simplify each number by using the imaginary number i .
√-50

Answers

Answer: The square root of -50 is undefined

Step-by-step explanation: I put it in a calculator It said undefined

SINE / COSINE RULE , bro help me

Answers

Using the law of sines, the length of side x, to 1 decimal place, is: 10.8 cm.

How to Apply the Law of Sines?

The law of sines states that:

Sin A/a = sin B/b = sin C/c.

Let:

Measure of angle A = 81°

a = x = ?

Measure of angle B = 40°

b = 7 cm

Plug in the values into Sin A/a = sin B/b to find the value of x

Sin 81/x = sin 40/7

Cross multiply

(x)(sin 40) = (sin 81)(7)

Divide both sides by sin 40

(x)(sin 40)/sin 40 = (sin 81 × 7)/sin 40

x = (sin 81 × 7)/sin 40

x = 10.8 cm (to 1 decimal place)

Therefore, using the law of sines, the length of side x, to 1 decimal place, is: 10.8 cm.

Learn more about the law of sines on:

https://brainly.com/question/2807639

#SPJ1

answer with work and for brainliest

Answers

The solutions of the expressions are as below:

10. -9x - 2; x = -4            3411. 24 - 8x; x = -2.25      4212. 15x + 9; x = -1/10       7.5

13. (a, b) are points located on the first quadrant that is a is positive x axis and b is positive y axis

(-a, b) are points located on the second quadrant that is: a is negative x axis and positive y axis

(a, -b) are points located on the fourth quadrant that is: a is positive x axis and negative y axis

(-a, -b) are points located on the third quadrant that is: a is negative x axis and negative y axis

How to solve the given expressions

10. -9x - 2; x = -4

-9x - 2 for x = -4

= -9 * -4 - 2

= 36 - 2

= 34

11. 24 - 8x; x = -2.25

= 24 - 8 * - 2.25

= 24 + 18

= 42

12. 15x + 9; x = -1/10

= 15 * -1/10 + 9

= -1.5 + 9

= 7.5

13.

a are points in the x axis and b are points in the y axis

(a, b) are points located on the first quadrant that is a is positive x axis and b is positive y axis

(-a, b) are points located on the second quadrant that is: a is negative x axis and positive y axis

(a, -b) are points located on the fourth quadrant that is: a is positive x axis and negative y axis

(-a, -b) are points located on the third quadrant that is: a is negative x axis and negative y axis

Read more on graphs here: https://brainly.com/question/25020119

#SPJ1

Inverse of [2,48] and [56,2130] ?

Answers

Answer: inverse of 2,48 there is none and the inverse of 56,2130 there is none

Step-by-step explanation: hope this helps

5. Main Street is 1.5 miles long. How many feet
long is Main Street?

Answers

main street would be 7920 feet long

Jordin worked 23 hours and 44 minutes. He's paid $13.00 an hour. How much will he get paid?
Change minutes to hours then multiply.
This is pay, so round all answers to the nearest cent if necessary. Two decimal places

Answers

Answer:

hola

Si por qué le tenías que restar ala fracción equivalente

24. Find K between M(1, -3) and N(4, 6) such that the
ratio of MK to KN is 1:2.

Answers

Answer:

Find K between M(1, -3) and N(4, 6) such that the

ratio of MK to KN is 1:2.

Step-by-step explanation:

Find K between M(1, -3) and N(4, 6) such that the

ratio of MK to KN is 1:2.

The coordinates of point K are (2, 0).

Given that there are three points M, K and N, such that M = (1, -3) and N = (4, 6) and the ratio of MK to KN is 1:2.

We need to find the coordinates of point K.

To find point K between M(1, -3) and N(4, 6) such that the ratio of MK to KN is 1:2, we can use the concept of section formula.

Let's assume the coordinates of point K are (x, y).

The section formula states that if a point K divides a line segment MN in the ratio m:n, then the coordinates of K are given by:

x = (n·x₁ + m·x₂) / (m + n)

y = (n·y₁ + m·y₂) / (m + n)

where (x₁, y₁) are the coordinates of point M and (x₂, y₂) are the coordinates of point N.

In this case, the ratio of MK to KN is 1:2, so m = 1 and n = 2.

Substituting the coordinates of M(1, -3) and N(4, 6) into the formula:

x = (2·1 + 1·4) / (1 + 2)

= (2 + 4) / 3

= 6 / 3 = 2

y = (2·(-3) + 1·6) / (1 + 2)

= (-6 + 6) / 3

= 0 / 3

= 0

So, the coordinates of point K are (2, 0).

Learn more about section formula click;

https://brainly.com/question/30242641

#SPJ7

Other Questions
Date:Y11 Exam Skill Homework 14 Explain why Elizabeth I was seen to not be suitable as the new monarch in1558.You may use the following in your answer.Name:LegitimacyGenderYou must also use information of your own(12 marks) why did middle ages artists use emphasis in their artwork?A. to sell more copies to all agesB. to use extra ink from the pageC. to take up space on the pageD. to create a focal point or center of interest 17. What product do all three reactions in Model 2 have in common? Which hummingbird adaptation is most advantageous for supporting their high metabolism? The mean of six rational numbers is -4.3.a) What is the sum of the rational numbers?b) If five of the numbers each equal -4.5,what is the sixth number? AYUDAA en mates por favor Se vende un terreno de 540 000 m2 a tres socios, de modo que elprimero paga las 3/5 del precio, el segundo la tercera parte y el tercero elresto.a) Cunto terreno corresponde a cada socio?b) Qu fraccin del total le correspondi al ltimo? - Consider a 200-cm3 (cc) soil core that weighs 260 g when oven-dried and 360 g when saturated. Thecore can hold 100 g of water (equivalent to 100 cm3), so total pore space is 100 cm3. Porosity is 100cm3/200 cm3 x 100%, or 50%. This is a typical porosity measure for a medium-textured soil. Calculate theparticle density (PD) of this soil sample. Describe in two to three sentences how Rikki-tikki saves the family from snakes If Line t || Line v and m5 =5x + 45 and m7 = 12x - 11, find m5 what did Henry Blake do after he gained freedom? What term describes an internet-inspired mechanism for raising money or sponsorship from members of the public for a small project or business venture?. (a-4b)(a^2+4ab+16b^2) simplify the expression A security pays $100 monthly for the next 10 years and the appropriate nominal interest rate is 12%. What is the present value of this security?. 1.) You need 13 flower arrangements for table decorations. Each arrangement sells for $12.25. How much will you spend on flowers? B Check ( the correct sentences. Write an X for the incorrect sentences. Then correct the incorrect sentences. 1. My best friend was playing soccer when she broke her leg. 2. I was watching videos with my friends all weekend. 3. Frida was hanging up the phone on her friend. 4. The boy was falling, and then his friend was comforting him. 5. My friends and I played video games when my mom called. Q6. What percentage of 16 is 4?O 30%120%25%15% Difference between hyperbola and parabola (2 points) A model rocket has a mass of 0.2 kg, with a motor that can provide a force of 100 N. A second model rocket is being built withthe same motor, but it is being designed to accelerate half as much as the first rocket. What kind of change can be made inthe design to achieve this objective? (1 point)O The mass of the second rocket should be 0.2 kg."O The mass of the second rocket should be 0.01 kg.O The mass of the second rocket should be 0.1 kg.O The mass of the second rocket should be 0.4 kg. 2. On a day in December the temperature is 5C at noon. A cold front is coming in and thetemperature is dropping by 2C every hour. What time will it be when the temperature is-14C? Which of the following best describes an enzyme?Question 1 options:Enzymes are carbohydrates that provide large amounts of energy to cells.Enzymes are proteins that serve as high energy reactants in chemical reactions causing them to speed up.Enzymes store large amounts of energy that cells can use in its chemical reactions if other energy sources are depleted.Enzymes are proteins that speed up chemical reactions but are neither the reactants or products of those reactions.