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marishachu [46]
3 years ago
5

Please help me with this question!

Mathematics
1 answer:
BigorU [14]3 years ago
3 0
The answer is 8.8

You have to use SohCahToa to figure out the length of AB

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Akira receives a prize at a science fair for having the most informative project. Her trophy is in the shape of a square pyramid
PolarNik [594]

Akira needs 45 square inches of  gold foil to cover the chair free including the bottom​

Step-by-step explanation:

Total surface  =  surface area of the base square + area of 4 triangles

Step 1: The surface area of the base square

surface area of the base = surface area of the square =  

where s is the side length

The the surface area of the base  = = 9 square inches

Step 2: The surface area of the side triangles

The area of the triangle =

On substituting the values,

The area of the triangle =

The area of the triangle =

The area of the triangle = 9 square inches

Now the area of 4 triangles  =  4 x 9  = 36 square inches

Thus the total surface area  =  9 + 36 = 45 square inches

3 0
3 years ago
Read 2 more answers
Name the numerator and the denominator in each fraction.
inysia [295]

the numerators are the top number and the numbers are: 11, 7, 12, and 0

the denominator is the bottom and the numbers are: 12, 512, 10, and 78

hope this helps!

3 0
3 years ago
Read 2 more answers
I need help with this can someone please help me please :)
Usimov [2.4K]
That's all I could get... 10th graders forget sorry I hope this helps

8 0
3 years ago
Pls help me w this question!!
katrin2010 [14]

Answer:

v =  sqrt(473)

Step-by-step explanation:

v^2 = u^2 +2as

Let u = 9 a = 7 and s = 28

v^2 = 9^2 +2(7)(28)

v^2 = 81 + 392

v^2 = 473

Take the square root of each side

sqrt(v^2) = sqrt(473)

v =  sqrt(473)

4 0
3 years ago
In each figure below find m∠1 and m∠2, if a||b. Show your work with statements.
user100 [1]

Answer:

<1 = 130

<2 = 50

Step-by-step explanation:

<1 = 130  since it is an alternate interior angle and alternate interior angles are equal when the lines are parallel  ( a is parallel to b)

<1 + <2 = 180 since the form a straight line

130+ <2 = 180

<2 = 180-130

<2 = 50

3 0
3 years ago
Read 2 more answers
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