This is confusing me I'd appreciate some help

Answer:

w = 7

Step-by-step explanation:

12.75w + 25 = 114.25

12.75w + 25 - 25 = 114.25 - 25

12.75w = 89.25

12.75w/12.75 = 89.25/12.75

w = 7

Hope this helps!  :)

The solution to the given system of equations is x = -2, y = 4, and z = -2. That is, the solution is (-2, 4, -2)

From the question, we are to solve the given system of equations

The given system of equations is

4x - y -2z = -8      ------------ (1)

-2x + 4z = -4        ------------ (2)

x + 2y = 6            ------------ (3)

From equation (2)

-2x + 4z = -4

4z = -4 + 2x

Divide through by 2

2z = -2 + x         ----------- (4)

From equation (3)

x + 2y = 6

2y = 6 - x

y = 3 - 1/2(x)      ---------- (5)

Substitute equations (4) and (5) into equation (1)

4x - y -2z = -8

4x -(3 -1/2(x)) - (-2 +x) = -8

4x -3 + 1/2(x) + 2 - x = -8

Multiply through by 2

8x - 6 + x + 4 -2x = -16

Collect like terms

8x + x -2x = -16 + 6 - 4

7x = -14

x = -14/7

x = -2

Substitute the value of x into equation (4)

2z = -2 + x

2z = -2 + (-2)

2z = -2 - 2

2z = -4

z = -4/2

z = -2

Substitute the value of x into equation (5)

y = 3 - 1/2(x)

y = 3 - 1/2(-2)

y = 3 + 1

y = 4

Hence, the solution to the given system of equations is x = -2, y = 4, and z = -2. That is, (-2, 4, -2)

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Answer:

y = 0x

explaination

Greetings from Brasil...

Putting SIN² A in evidence

SIN² A(1 + TG² A) = TG² A

           1 + TG² A = SEC² A

SIN² A(SEC² A) = TG² A

SIN² A/COS² A = TG² A

TG² A = TG² A

Answer:

B) 2

Step-by-step explanation:

Is BK bisecting CD?

x + 1 = 2x -1  Subtract x from both sides

1 = x -1  Add 1 to both sides

2 = x

Two expressions with equal sign is equation, if (m/n)(x) for x=-3 is (m/n)(-3)=m(-3)/n(-3).

Two expressions with equal sign is called as Equation.

Given,
(m/n)(x) for x=-3

i.e means we need to find (m/n)(-3)

So we have to calculate by putting -3 in to two functions m and n.

(m/n)(-3)=m(-3)/n(-3)

Therefore (m/n)(x) for x=-3 is (m/n)(-3)=m(-3)/n(-3).

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Answer:

Width=17m and Length=31m

Step-by-step explanation:

The perimeter of basketball court is rectangle in shape and is 96 m.

let us assume width be x m

so accordingly length will be 2*x-3=2x-3m

Perimeter= 2*(length+width)

96=2*(2x-3+x)

96=2*(3x-3)  

96=6x-6

6x=102

x=102/6

x= 17

so, the width is 17m

and length is 2x-3=2*17-3=31m

Answer:9514 1404 393

Answer:

 y = 95°

 x = 60°

Step-by-step explanation:

The applicable theorem is the one that says the exterior angle (120°) is the sum of the remote interior angles:

 120° = 25° +y

 95° = y . . . . . . . . . . subtract 25° from both sides

_____

If you like, you can get there by calculating x (or not):

 x = 180° -120°

 y = 180° -25° -x = 180° -25° -(180° -120°)

 y = 120° -25° . . . . . simplify — notice we didn't actually have to compute x

Step-by-step explanation:

[tex]she \: paid = 2(1.69) + 1(1.49) + 1(1.09) + 0.68=6.64 \\ change = 10 - 6.64 = 3.36[/tex]

Answer:

D. (x-9)(x-3)

PLEASE MARK AS BRAINLIEST!!!

Answer:

[tex]6\frac{1}{9}[/tex]

Step-by-step explanation:

You said you needed the answer fast if you want I cant still give an explination.

By using a trigonometric relation, we can see that the missing angle is a = 41.1°

In the image we have a right triangle where we know the measures of the 3 sides and we want to find an interior angle.

These measures are:

Now we can use the trigonometric relation:

Cos(a) = (adjacent cathetus)/(hypotenuse)

Where a is the angle we want to get, so we can rewrite:

Cos(a) = 55/73

Now, if we apply the inverse cosine function in both sides, we get:

Acos(Cos(a)) = Acos( 55/73)

a = Acos(55/73) = 41.1°

By using a trigonometric relation, we can see that the missing angle on the right triangle is a = 41.1°

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The total number of vehicles is simply given as

A total number of vehicles. =[tex]\int_0^{20} f(x) d x[/tex]

This is further explained below.

Generally, How far away two things or points are may be measured, either quantitatively or quantitatively, using something called distance.

When discussing physics or using the term in daily conversation, "distance" may either refer to a literal measurement or an approximation based on several other factors.

In conclusion, Here, we need to include all of the cars that are available on the length of road that is 20 miles long, and we can accomplish this by integrating the density function f. (x).

Therefore a total number of vehicles. =[tex]\int_0^{20} f(x) d x[/tex]

Option C

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If an increase in the price of blue jeans leads to an increase in the demand for tennis shoes, then blue jeans and tennis shoes are substitutes.

Two or more expressions with an Equal sign is called as Equation.

The statement "If an increase in the price of blue jeans leads to an increase in the demand for tennis shoes"

Substitutes are two goods that can be used in place of each other for a similar purpose.

In this case, if the price of blue jeans increases, consumers may switch to buying more tennis shoes instead, since they serve a similar purpose in terms of clothing.

Complements are two goods that are used together, such as peanut butter and jelly.

Normal goods are goods whose demand increases as income increases, while inferior goods are goods whose demand decreases as income increases.

Hence, If an increase in the price of blue jeans leads to an increase in the demand for tennis shoes, then blue jeans and tennis shoes are substitutes.

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For the standard deviation, from the equation find the value of X₀ is 10.2

What is Standard Deviation ?

The standard deviation measures the degree of variation or dispersion in a set of values. A low standard deviation indicates that the values tend to be close to the mean (also known as the expected value) of the set, whereas a high standard deviation indicates that the values are dispersed over a wider range.

Given

Z = 1.3

μ = 5 , σ = 0.4

Now for  X₀

Z =    X₀ -X / σ

1.3 =   X₀ - 5 / 0.4

X₀ = 10.2

Hence, X₀ = 10.2

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Answer:

48.43552415324934

Step-by-step explanation:

61.73²-38.27² = 2346

[tex]\sqrt{2346}[/tex] = 48.43552415324934

Answer:

√2

Step-by-step explanation:

An irrational number is one that cannot be expressed as p/q where both p and q are integers

Square roots of numbers which do not result in an integer are irrational

So it is the last choice √2

The combined estimated weight of the two whales is 945.7 Pounds.

The estimated weight of a blue whale = 3.46 × 105

Total estimated weight of a blue whale = 363.3 Pounds

Now, the estimated weight of a sea whale = 5.6 × 104

Total estimated weight of a sea whale = 582.4 Pounds

For finding the combined estimated weight of the two whales,

we will add the total estimated weight of both whales.

Here is how we will do it:

Total estimated weight of a blue whale + Total estimated weight of a sea whale

= 363.3 Pounds + 582.4 Pounds

Hence, 945.7 Pounds will the combined estimated weight of the two whales.

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Answer:

x - 9 = -1

Step-by-step explanation:

When you see less than you switch the numbers. So, for instance, it says 9 less than x means x-9

Answer: 75^5 which mean 75 to the 5th power

Step-by-step explanation:

serian

respuesta 9 .5 por 56. 5678902

Answer:

70 inches

Step-by-step explanation:

remembering that 1 foot is 12 inches, you would do 12 inches multiplied by 5 feet. 12x5=60. After adding 60 inches to the remaining 10 inches, you get 70 inches. The tree is 70 inches tall

The fractional representation of each plot is given by 12/67 , 79/335 , 58/335 , 143/670 and 133/670 .

A fraction denotes a component of a whole or, more broadly, any number of equal pieces. A common or simple fraction is made up of a non-zero denominator that is displayed below (or after) the line that the numerator is displayed above (or before a slash, as in the case of 12). Compound fractions, and mixed numeral fractions are examples of uncommon fractions that use numerators and denominators.

The total area of the lot is given by (19750+15000+14500+17875+16625) =83750 square feet.

Fractional representation of Lot 1= 15000 ÷ 83750 = 12/67

Fractional representation of Lot 2= 19750 ÷ 83750 = 79/335

Fractional representation of Lot 3= 14500 ÷ 83750 = 58/335

Fractional representation of Lot 4= 17875 ÷ 83750 = 143/670

Fractional representation of Lot 5= 16625 ÷ 83750 = 133/670

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Answer:

the slope is -5/2 and the y-intercept is (0,-3)

Step-by-step explanation:

Answer:

y = -5/2x - 3

Step-by-step explanation:

First you distribute, -5/2 or -2.5 (x +4)

Which results in y - 7 = -2.5x + -10

and then add +7 to both sides

y = -2.5x + (-3 )

Turn x into a fraction and:

y = -5/2x - 3 The last answer choice

i t h i n k

Answer:

2/5

Step-by-step explanation:

if there’s 5 pets and 2 of them are birds 2/5 of them are birds

The box-plot for the package shows that median is almost at center and the data is roughly symmetrical and mound -shaped (normally-distributed ) .

A box plot, ajso referred to as a box and whisker plot, is a type of chart that is widely used in data analysis in descriptive statistics.

Now we know that from the box plot that the median is almost at the Centre , and both the third quartile and first quartiles are almost at equal distance from median, thus we can say that it is almost symmetric and normally distributed.

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The distinction in feet between the elevation at Zabriskie purpose and Badwater Basin​ is 930 feet.

The image of the amount line of the question is given below.

From the image , we are able to see that

Zabriskie purpose is at 648 feet and Badwater Basin is at - 282 feet.

The distinction between these points is given by

= 648 - (-282)

= 930 feet

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The complete question is mention below :

The number line shows four elevations in Death Valley National Park.Enter the difference ,in feet between the elevation at Zabriskie Point and Badwater Basin​ .

Answer: 3,167

Step-by-step explanation: