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denis-greek [22]

2 years ago

8

Can someone help me?

2 answers:

ryzh [129]2 years ago

7 0

Answer:

C

Step-by-step explanation:

So this is transformations

So this seems like it was rotated 180 degrees then dilated by a scale factor

The rule for 180 degrees is (-x,-y)

The rule for dilations is (2x,2y)

So the answer should be

C. (-2x,-2y)

Have a nice day

Svetach [21]2 years ago

5 0

C-(-2x,-2y is the correct answer you welcome

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88

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Brittany was tracking the increasing temperature in the morning. At 8 a.m., it was 68 degrees Fahrenheit. At 10 a.m., it was 74

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3 years ago

Can someone help me with this ?

romanna [79]

Answer:

$\large\boxed{S.A.=467\ in^2}$

Step-by-step explanation:

We have two triangles and three rectangles.

The formula of an area of a triangle:

$A_{triangle}=\dfrac{bh}{2}$

b - base

h - height

The formula of an area of a rectangle:

$A_{rectangle}=lw$

l - length

w - width

TRIANGLE:

b = 11 in, h = 7 in

$A_1=\dfrac{(11)(7)}{2}=\dfrac{77}{2}=37.5\ in^2$

RECTANGLE 1:

l = 11 in, w = 14 in

$A_2=(11)(14)=154\ in^2$

RECTANGLE 2:

l = 9 in, w = 14 in

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RECTANGLE 3:

l = 8 in, w = 14 in

$A_4=(8)(14)=112\ in^2$

The Surface Area:

$S.A.=2A_1+A_2+A_3+A_4$

Substitute:

$S.A.=2(37.5)+154+126+112=467\ in^2$

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3 years ago