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3 years ago

Solve the quadratic equation by using either a numeric or a graphic approach.

Mathematics

2 answers:

IgorC [24]3 years ago

7 0

nananananannananananananananananan

Tasya [4]3 years ago

7 0

Answer:

Step-by-step explanation:

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Danielle earns $36.80 for 4 hours of yardwork. MacKenzie earns $50.40 for 6 hours of yardwork. Who earns more money per hour? HI

Elden [556K]

Answer:

Danielle earns more in 1 hours and $0.80 more than MacKenzie

Step-by-step explanation:

Given : Danielle earns $36.80 for 4 hours of yardwork. MacKenzie earns $50.40 for 6 hours of yardwork.

To find : Who earns more money per hour? How much more

Solution : We have given

Danielle earns in 4 hours = $36.80 .

Danielle earns in 1 hours = .

Danielle earns in 1 hours = $9.20 .

MacKenzie earns in 6 hours = $50.40

MacKenzie earns in 1 hours = .

MacKenzie earns in 1 hours = $8.40.

We can see Danielle earns more in 1 hours .

How much = $9.20 - $8.40.

= $0.80.

Therefore, Danielle earns more in 1 hours and $0.80 more than MacKenzie

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Slove for x 2m-nx=x+4

Svetach [21]

Answer:

Therefore, x = -2m+4/-n-1

6 0

3 years ago

A quadratic equation is shown: x2 + 18x + 76 = 0 Which of the following is the first correct step to write the above equation in

tia_tia [17]

Answer:

x^2 + 18x + 76 + 5 = 0 + 5

Step-by-step explanation:

The first step is to determine the constant that is needed to be able to write the expression in the desired form. That constant is the square of half the x-term coefficient: (18/2)^2 = 9^2 = 81.

The constant that is present is 76, which is 5 fewer than the needed constant, so the "first step" is to add 5 to both sides of the equation:

x^2 + 18x + 76 + 5 = 0 + 5

Then the next step would be to write the left side as a square:

(x +9)^2 = 5 . . . . . . . p = -9; q= 5

4 0

3 years ago

When Zack checked his solution, it didn’t work. What was his mistake?

dangina [55]

Answer: its c In step 3, he should have divided both sides by StartFraction 6 Over 4 Endfraction.

Step-by-step explanation:

6 0

3 years ago

State of the triangles in each pair of similar. If so, State how you know they are similar and complete the similarity statement

Vinil7 [7]

Answer:

b. not similar

Step-by-step explanation:

The given sides* have the ratio 30:39 = 10:13 in one triangle and the ratio 20:27 = 10:13.5 in the other triangle. Since these ratios are different, the triangles cannot be similar.

____

* These are the sides bracketing the vertical angles at T. If the triangles were similar, the three sides would have to have the ratios 10 : 13 : 13.5.

However, the geometry shown would require that the angle opposite side 13.5 in one triangle have the same measure as the angle opposite side 13 in the other triangle. That is not possible, so it is not possible for these triangles to be similar.

6 0

3 years ago