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DanielleElmas [232]
3 years ago
7

Can you help me with this?

Mathematics
1 answer:
Agata [3.3K]3 years ago
8 0

Answer:

104 degrees for both of them.

Step-by-step explanation:

Find angle 1.

180 degrees - 76 degrees = 104 degrees


Angle 1 corresponds with angle 5, and is an alternate exterior angle to 7, which means that all three angles are congruent.


Therefore, your answer is 104 degrees.

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You mow the lawn to earn your allowance. Each time you mow the lawn you earn \$12$12dollar sign, 12. Write an equation for the n
horrorfan [7]
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3 years ago
I need help on ratio of x-coordinates and ratio of y-coordinates
ad-work [718]

Answer:

Ratio of x-coordinates:

\frac{-1}{-2}=\frac{1}{2}

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Ration of y-coordinates:

\frac{2.5}{5}=\frac{1}{2}

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Step-by-step explanation:

The table is asking for the ratio of x-coordinates for each point (A, B, C and D) for both the image and pre-image.  The ratio is the image 'x' or 'y' value ÷ the pre-image 'x' or 'y' value.  Each ratio should be expressed in simplest form and should show the same pattern of dilation, or same scale factor.  In this case, the second figure is 1/2 the size of the original figure.  

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3 years ago
Which of the following are roots of the polynomial function? Check all that apply.
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You know 1 is not a root because the sum of the coeffcients of the equation is 14, not zero.

It is fairly easy to try 3 by synthetic division (see attachment), which tells you that 3 is a root and the remaining quadratic factor is x²-3x-5. The quadratic formula tells you the roots of that factor are

... x = (-b±√(b²-4ac))/(2a) = (3±√29)/2

The appropriate choices are

... C. (3-√29)/2

... D. (3+√29)/2

... F. 3

_____

The quadratic formula tells you the solution to

... ax²+bx+c=0

is x = (-b±√(b²-4ac))/(2a)

We have a=1, b=-3, c=-5.

8 0
3 years ago
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