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Art [367]
3 years ago
7

I need help with this question.

Mathematics
1 answer:
alexandr1967 [171]3 years ago
3 0

A triangular pyramid is a pyramid having a triangular base. It has 4 faces, 6 edges and 4 vertices.

Since the area of one face is 25 in^{2}

Therefore, surface area of triangular pyramid = 4 \times area of one face

= 25 \times 4

= 100 in^{2}.

So, the surface area of triangular pyramid is 100in^{2}.

Therefore, color is red.

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Violet contributes 12% of her $55,700 annual salary to her 401(k) plan. What is her pretax income?
NikAS [45]
You have that:

 - Her contribution from her salary <span>to her 401(k) plan, </span>is: 12%.
 - Her annual salary is: $55,700.

 Then, to solve this problem and calculate her pretax income, you must following the steps below:

 1. You must calculate the amount that Violet contributed to her 401(k) plan. So, you have:

 12%/100=0.12

 ($55,700x0.12)=$6,684 

 2. Now, you must subtract her annual pay ($55,700) by the amount obtained ($6,684), as below:

 Pretax income= $55,700-$6,684
<span> Pretax income=$49,016
</span><span>
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4 years ago
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The length of a rectangle is twice as long as the width of the rectangle.
Rashid [163]

Answer: length = 8cm

Width = 4cm

Step-by-step explanation:

Let the width of the rectangle be represented by x.

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Note that, Area of a rectangle = Length × Width

Therefore,

2x × x = 32

2x² = 32

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2x²/2 = 32/2

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Therefore, width = 4cm

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Check: length × width = Area

8cm × 4cm = 32cm²

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Evgesh-ka [11]

Answer:

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Step-by-step explanation:

Hope this helps!

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Please help me with this homework
3241004551 [841]

Answer:

C.

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a=8, b=15, c= the unknown distance

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