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makkiz [27]
3 years ago
12

Rachel has a toy shaped like a triangular pyramid in which the base and the lateral faces are congruent equilateral triangles. T

he side lengths of the triangles are 4 inches. The height of each triangle is about 3.5 inches. Rachel wants to cover all the lateral surfaces except for the base with yellow paper.
The amount of paper required to cover the lateral surfaces is about square inches. If she wants to cover the entire pyramid with yellow paper, she would require about more square inches of paper.
Mathematics
1 answer:
astra-53 [7]3 years ago
7 0
The lateral area that Rachel needs to cover is 21 inches.
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A submarine submerged at a depth of -32.25 meters dives an additional 8.5 meters. What is he new depth of the submarine?
kvasek [131]
-40.75 meters is the answer
3 0
4 years ago
Read 2 more answers
Divide 8 1/8 by 7 1/12 simplify the answer and write as a mixed number
vladimir1956 [14]

The division of 8 1/8 by 7 1/12 is 91/136.

<h3>What is division?</h3>

Division simply has to do with reduction of a number into different parts. On the other hand, a mixed number is the number that's made up of whole number and fraction.

Dividing 8 1/8 by 7 1/12 will go thus:

8 1/8 ÷ 7 1/12

Change to improper fraction

65/8 ÷ 85/7

= 65/8 × 7/85

= 91/136

The division will give a value of 91/136.

Learn more about division on:

brainly.com/question/25289437

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4 0
1 year ago
Who can answer my question in square LMNO find the length of LM
AlexFokin [52]

Answer:

10 units

Step-by-step explanation:

LMNO is a square.

All sides of square are equal

MN = LM

3x + 1 = x + 7

3x - x = 7 - 1

2x = 6

x = 6/2

x = 3

LM = x + 7 = 3 + 7 = 10

LM = 10 units

8 0
3 years ago
Find the savings plan balance after 3 years with an APR of 7​% and monthly payments of ​$150.
Citrus2011 [14]

Answer:

The balance is $5989.5

Step-by-step explanation:

The savings plan balance is given by the following formula:

A = P*\left[\frac{(1 + \frac{APR}{n})^{n*Y} - 1}{\frac{APR}{n}}\right]

In which A is the savings plan balance, P is the monthly payment, APR is the annual percentage rate(decimal), n is the number of payments per year and Y is the number of years.

In this problem, we have that

Find the savings plan balance after 3 years with an APR of 7​% and monthly payments of ​$150.

So we have to find A when P = 150, APR = 0.07, n = 12, Y = 3.

So

A = P*\left[\frac{(1 + \frac{APR}{n})^{n*Y} - 1}{\frac{APR}{n}}\right]

A = 150*\left[\frac{(1 + \frac{0.07}{12})^{12*3} - 1}{\frac{0.07}{12}}\right]

A = 5989.5

The balance is $5989.5

3 0
3 years ago
Write the equation of a line that is parallel to {x=8}x=8x, equals, 8 and that passes through the point {(-3,-2)}(−3,−2)left par
Alexxandr [17]

Answer:

  x = -3

Step-by-step explanation:

The line parallel to x=8 is another vertical line:

  x = constant

To make it go through a point with an x-coordinate of -3, the constant must be -3.

Your line is ...

  x = -3

5 0
4 years ago
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