How do I factorise this Quadratic Equation to find x?[tex]2x^2-x-120=0[/tex]

Solving for the probability using the z-table, the percentage of customers that have to wait longer than 49 minutes is 1.2 %.

For a normally distributed set of data, given the mean and standard deviation, the probability can be determined by solving the z-score and using the z-table.

First, solve for the z-score using the formula below.

z-score = (x – μ) / σ

where x = individual data value = 49

μ = mean = 40

σ = standard deviation = 4

z-score = (49 - 40) / 4

z-score = (9) / 4

z-score = 2.25

Find the probability that corresponds to the z-score in the z-table. (see attached images)

x = (0.9861 + 0.9893)/2

x = 1.9754/2

x = 0.9877

Subtract it from 1 and multiply by 100 to get the percentage.

% = (1 - 0.9877) x 100

% = 0.0123 x 100

% = 1.23%

% = 1.2 %

Learn more about probability here: brainly.com/question/26822684

#SPJ4

The system of the equation has x = 0.

The two equations are,

y = 2x + 6x + 4

y = -4x + 4

Now equating the equation, we have

2x + 6x + 4 = -4x + 4

8x + 4 = -4x + 4

12x = 0

x = 0

Therefore the system of the equation has x = 0.

To know more about the equation refer to the link given below:

https://brainly.com/question/14107099

#SPJ9

Simplification: -4 x (5+1) = (-4 x 5) + (-4 x 1)

Take LHS,

-4 x (5+1) = -4x6

 = -24

Take RHS,

(-4 x 5) + (-4 x 1) = -20 + (-4)

= -20-4

= -24

LHS= RHS

Hence -4 x (5+1) = (-4 x 5) + (-4 x 1) this equation is verified.

The fundamental guidelines and procedures to simplify any algebraic statement are as follows: By multiplying factors, remove any grouping symbols like brackets and parenthesis. If the words contain exponents, use the exponent rule to eliminate grouping. Add or remove like words to combine them.

Start by resolving all of the terms included in parenthesis to simplify mathematical equations using the order of operations. The exponents should then be solved, followed by any necessary multiplication. Division problems are next, followed by adding and subtracting to wrap things out.

To learn more about simplify visit https://brainly.com/question/23602983

#SPJ9

Answer:

Step-by-step explanation:

its 1

Answer:

(- 1 , 1 )

Step-by-step explanation:

37 • 2 • (0 + 1/2 ) - Inverse property of addition

37 • 2 • 1/2 - Commutative property of addition

37 • 1 - Inverse property of multiplication.

37 - Identity property of multiplication.

Algebraic expressions include at least one variable and at least one operation addition, subtraction, multiplication or division.

We have,

37 • 2 • (-5+ 5+ 1/2)

= 37 • 2 • (0 + 1/2 )  -Inverse property of addition

The inverse property of addition states that:

a + (-a ) = 0 where a ∈ R

= 37 • 2 • 1/2 - Commutative property/Identity property of addition

The commutative property of real numbers states that:

a + b = b + a where a,b ∈ R

= 37 • 1 - Inverse property of multiplication.

The inverse property of real numbers states that:

a + 1/a = 1 where a ∈ R

= 37 - Identity property of multiplication.

The identity property of multiplication of real numbers states that:

a x 1 = a where a ∈ R

Thus,

37 • 2 • (0 + 1/2 ) - Inverse property of addition

37 • 2 • 1/2 - Commutative property of addition

37 • 1 - Inverse property of multiplication.

37 - Identity property of multiplication.

Learn more about algebraic properties here:

https://brainly.com/question/12596768

#SPJ1

The complete question is:

For the following problem, match the name of the number property that was used to get to each step from the previous step.

37 • 2 • (-5+ 5+ 1/2)

37 • 2 • (0 + 1/2 )

37 • 2 • 1/2

37 • 1

37

identity property of addition

commutative property

inverse property of multiplication

inverse property of addition

identity property of multiplication

The value of the expression log₈32 by using the change of base formula is 1.67.

Given that the expression is log₈32.

We are required to find the value of the expression using change of base formula.

The change of base formula is basically used at a time when we have to re-write a logarithm operation as a fraction of logarithms with a new base to find the value of the logarithm.

The result given by it is [tex]log_{a}b[/tex]=log b/log a.

The expression is log₈32.

log₈32=log 32/log 8

=log [tex]2^{5}[/tex]/ log [tex]2^{3}[/tex]

=5log 2/3log 2

=5/3

=1.67

Hence we can say that the value of the expression log₈32 by using the change of base formula is equal to 1.67.

Learn more about change of base formula at https://brainly.com/question/24788069

#SPJ4

Answer:93000

Step-by-step explanation:

The length of line segment AB  shown in the line graph is is 2 units

With the given line graph it is very obvious that the line segment AB has two point A and B with -4 and -2 as their value

To measure the length we need to subtract the x coordinate of one end point from the another end point

here we will deduct the x coordinate of b point from the x coordinate of A point which is shown below

           - 4 - (-2)

and using the simple integer properties we can solve this problem of line graph

           - 4 + 2

which comes out to be 2

hence, the length of line segment AB  shown in the line graph is is 2 units

To know more about line graph- https://brainly.com/question/23680294

#SPJ9

Answer:

12 is the fill in

Step-by-step explanation:

Answer:

The equation of a line in slope intercept form is

y=mx+c

in integers form y=2x+3

2 x 10^5 miles is the correct answer.

A power of ten in mathematics is defined as one of the integer powers of a number multiplied by ten. Integers can be both positive and negative. To find the multiple of ten, we need to add 10 to itself several times (if the power is a positive integer).

if we have a value that says ten ^5,

then this value is equal to:

= 10 x 10 x 10 x 10 x 10

= 10,0000

Also, by the definition of a multiple of ten, the number 1 is a power of 10 as well if we take the 0th power of 10.

10^0 = 1

Whatever the integer is, it is multiplied by 10 n times. So, the long form of a power of 10 is the number 1, followed by n zeros, where the n number is greater than the 0 value.

Here the distance that is given to us is:

238,855

We can also write it as,

2 x 10 ^ 5.

More problems related to the multiples of numbers are solved in the link below:

https://brainly.com/question/11799672?referrer=searchResults

#SPJ4

The prime factorization of 200 using exponential notation is [tex]2^3 *5^2[/tex] that is correct option is (b)

First, we decompose the number given on statement by applying prime numbers in ascending order. We see that 200 is an even number, therefore, we infer that smallest prime number within is 2.

1) [tex]200\div2=100[/tex] (Even number)

2)  [tex]100\div2=50[/tex](Even number)

3)  [tex]50\div2=25[/tex](Even number)

4)  [tex]25\div5=5[/tex](Odd number, not a multiple of 3, but a multiple of 5 since last digit is 5)

5)  [tex]5\div5=1[/tex](Odd number, not a multiple of 3, but a multiple of 5 since last digit is 5)

Now, we construct the prime factorization using exponential notation:

[tex]200=2^3\cdot5^2[/tex]

The prime factorization of 200 using exponential notation is [tex]2^3\cdot5^2[/tex] that is option (b)

Learn more about Prime factorization here https://brainly.com/question/22600263

# SPJ4

The prime factorization of 200 using exponential notation is 2^3*5^2  that is correct option is (b)

First, we decompose the number given on statement by applying prime numbers in ascending order. We see that 200 is an even number, therefore, we infer that smallest prime number within is 2.

1)  200/2=100 (Even number)

2) 100/2=50  (Even number)

3)50/2=25  (Even number)

4) 25/5=5 (Odd number, not a multiple of 3, but a multiple of 5 since last digit is 5)

5) 5/5=1 (Odd number, not a multiple of 3, but a multiple of 5 since last digit is 5)

Now, we construct the prime factorization using exponential notation:

200=2^3*5^2

The prime factorization of 200 using exponential notation is 2^3*5^2  that is option (b)

Learn more about Prime factorization here: brainly.com/question/22600263

# SPJ4

Answer:

(C) tan 3pi/2

Step-by-step explanation:

See image. You can use the Unit Circle to help you find these answers. The Unit Circle looks like scary math chaos pizza, but it really is just a great big giant answer key. It has all the trig answers on it.

(If you use your calculator instead be sure to change it to radian mode.)

See image.

Tangent for any angle is the y/x.

Only tan 3pi/2 is undefined.

At 3pi/2 the x and y are (0,1) so tangent is 1/0 which is undefined.

The inequality that represent the possible length of the third side is

                    7 < x < 17

According to the triangle inequality theorem, the sum of any two sides of a triangle must be greater than the measure of the third side of the triangle.

We have been given measure of two sides which are 5 and 12. Then the possible length for the third side has two condition

Let the third side be x unit.

First condition,      x + 5 > 12

                              x > 7

Second condition,  12+ 5 > x

                                  17 > x

Hence the inequality that represent the possible length of the third side is

                    7 < x < 17

Learn more about inequality here : https://brainly.com/question/25275758

#SPJ9

Since the ratio is 12 : 5, the statement which is true is there are more than twice as many cows as there are sheep.

The ratio between the number of cows to number of sheep in a field is given as:

12 : 5

Now,

let the number of sheep be 5 x.

So, the number of cows will be 12 x.

So, we get that:

12 x > 2 ( 5 x)

12 x > 10 x

So, the statement which is true will be:

there are more than twice as many cows as there are sheep

Therefore, since the ratio is 12 : 5, the statement which is true is there are more than twice as many cows as there are sheep.

Learn more about ratio here:

https://brainly.com/question/2328454

#SPJ1

The required factor for the given expression is (x + 4)(3x - 1).

In mathematics, factorization or factoring refers to the process of composing a number or other mathematical object from numerous factors, usually smaller or simpler counterparts.

The given expression is 3x² + 11x - 4.

To factor a general quadratic expression of the form ax² + bx +c, we need to consider the product "ac" and find two factors for this number such that their sum is equal to b. during this case, a = 3, b = 11, and c = -4..

Therefore we need to consider the product ac = 3 × (-4) = -12.

Consider the 2 factors 12 and -1 for the product -12.

Then we have the sum is equal to 12 + (-1) = 12 - 1 = 11.

Therefore the expression 3x² + 11x - 4= 3x² + 12x + (-1)x -4= 3x² +12x - x - 4= 3x(x + 4) - (x + 4)= (x + 4)(3x - 1)

Therefore, the required factor for the given expression is (x + 4)(3x - 1).

Learn more about expression here https://brainly.com/question/24020835

#SPJ4

Based on the fact that the correlation coefficient was 0.1 in the plot of Bacteria versus Time, the reason is B. The bacteria have grown at an exponential rate and a line poorly fits the data.

The correlation coefficient shows the relationship between two variables. It is between -1 and 1 and figures closer to 0 denote a weak correlation.

In this instance, Bacteria is known to increase exponentially which means that a linear regression model would make a line that poorly fits the data. This would lead to a low correlation coefficient when it should instead be high.

Find out more on the correlation coefficient at https://brainly.com/question/27842223

#SPJ1

A number that can be expressed in scientific notation will be (2 × 10³) × 4 × 10².

Numbers that are either too large or too little to be conveniently stated in decimal form can be expressed using scientific notation. It may also be referred to as standard form, scientific form, or standard index form.

Always set the base to 10. The exponent must be an integer that is non-zero, therefore it can either be positive or negative. The coefficient's absolute value is more than or equal to 1, but it must be less than 10.

It should be noted that the number that can be expressed in scientific notation will be (2 × 10³) × 4 × 10². This will be:

= (2 × 10³) × (4 × 10²)

= 8 × 10^5.

Learn more about scientific notation on:

https://brainly.com/question/1767229

#SPJ1

The range of the function y=1/2x+3 when the domain is {-2, 0, 2, 4} is {-1 , 0.33 , 0.14 , 0.090}

We have given a function y = 1/2x+3 .....(1) and domain {-2, 0, 2, 4} .

In order to find the range putting x = -2 in equation (1) , we get

y=1/(2(-2)+3

y=1/-4+3

y=1/-1

y = -1

Putting x = 0 in equation (1) , we get

y=1/2(0)+3

y=1/0+3

y=1/3

y = 0.33

Putting x = 2 in equation (1) , we get

y=1/2(2)+3

y=1/4+3

y = 1 / 7

y = 0.14

Putting x = 4 in equation (1) , we get

y=1/2(4)+3

y=1/8+3

y= 1 / 11

y = 0.090

Learn about domain and range more here :

https://brainly.com/question/10197594

#SPJ9

The answer choice that correctly represents the quotient of 28134 divided by 71 is 28134/71

The quotient statement is given as

28134 divided by 71

In mathematics, quotient  is represented by division using the symbol /

i.e. the quotient of a and b is a/b

Using  the above as a guide, we have the following quotient expression

28134/71

Hence. the answer choice that correctly represents the quotient of 28134 divided by 71 is 28134/71

Read more about quotient at

https://brainly.com/question/629998

#SPJ1

Answer:

Step-by-step explanation:

-4x^3 + 28x^2 - 20x

= 4x(-x^2 + 7x - 4)

Answer: m<8=97 degrees.

m<5=83 degrees

Step-by-step explanation:

m<8=m<2 ==> Angles 8 and 2 are alternate interior angles, meaning that they're equal.

m<8=97 degrees.

m<8+m<5=180 degrees ==> Both angles 8 and 5 add up to a straight line, and straight lines measure 180 degrees and are called straight angles.

97+m<5=180

97-97+m<5=180-97

m<5=83 degrees

Answer:9870

Step-by-step explanation:

Answer:

Step-by-step explanation:

So we have our 9871

For rounding when a number is four and below if I am remembering correctly you drop the number down. If 5 and up you bump it up to the next number in front of it.

9871

7 = tens

7 > 5

9881

It should be noted that the total cost (t) after 8% sales tax is added to an Items price (p): 1.08p. This is true.

It should be noted that tax simply has to do with the compulsory levy that's paid by the individuals and firms to the government.

It should be noted that from the information, the total cost (t) after 8% sales tax is added to an Items price (p): 1.08p. This will be confirmed this:

Price = p

Tax = 8%

New price = Price + Tax

New price = p + (8% × p)

New price = p + 0.08p.

New price = 1.08p

Therefore, it should be noted that the total cost (t) after 8% sales tax is added to an Items price (p): 1.08p. This is true.

Learn more about tax on:

brainly.com/question/25783927

#SPJ1

The total cost (t) after 8% sales tax is added to an Items price (p): 1.08p. True or false?

Answer: Answer is C

Step-by-step explanation:

The value of the expression e⁻⁴ is 0.0183 to four decimal places.

We are given the expression:

e⁻⁴

We need to evaluate the expression to four decimal places.

Now, we know that the value of e is:

e = 2.71828182846

Now, e⁻⁴ can also be written as:

e⁻⁴ = 1 / e⁴

Substituting the value of e, we get that:

1 / e⁴ = 1 / (2.71828182846)⁴

= 1 / 54.5981500331

= 0.0183156389

Now rounding off to 4 decimal places, we get that:

= 0.0183

Therefore, the value of the expression e⁻⁴ is 0.0183.

Learn more about decimal here:

https://brainly.com/question/1827193

#SPJ4

Answer:

2√6(Decimal: 4.898979)

Step-by-step explanation:

−9√24+2√600

=2√6(Decimal: 4.898979)