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Naily [24]
3 years ago
6

Help need please and explain!!

Mathematics
1 answer:
Bezzdna [24]3 years ago
8 0
The formula for surface area of a rectangular prism is
2(lw + wh + lh).

length : 12
width : 8
height : 4

2(12*8 + 8*4 + 12*4)
2(96 + 32 + 48)
2(176)
352.

The surface area of the rectangular prism is 352 in².
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Write the equation of a line that passes the point (-6,9)and is perpendicular to a line that passes through the points (-2,1) an
stepladder [879]

Answer:

y = 4/3x + 1.

Step-by-step explanation:

The equation of the lines passing through (2,1) and (6,7) is:

y - 7 = (7-1)/(6- -2)(x - 6)

y - 7 = 6/8(x - 6)

y = 3/4(x - 6) + 7

y = 3/4x + 5/2.

So the line perpendicular to it has slope -1/3/4 = -4/3:

y - 9 = -4/3(x  + 6)

y = -4/3 x  - 8 + 9

y = 4/3x + 1.

6 0
3 years ago
A baby weighed 7.25 lb at birth. At the end of 8 months, the baby weighed 2.5 times its birth weight. How many pounds did the ba
Vesnalui [34]

Answer: 18.125 lbs

Explanation: The baby weighed 18.125 pounds at the end of eight months.

The baby weighed 7.25 lbs at birth. Eight months later, he weighed 2.5 or 2½ times its birth weight. Multiply 7.25 by 2.5  (which equals 18.125).

So now eight months later, he's 18.125 pounds.

4 0
3 years ago
Read 2 more answers
Please Answer
Lapatulllka [165]

Answer:

Part A: C. 4 to 1

Part B: 2

Step-by-step explanation:

<h3>Part A: </h3>

What is the ratio of the number of students receiving a C and the number of students receiving an A?

<u>As per table given:</u>

  • 12 students received a C and 3 students received a A

The ratio C/A is:

  • 12/3 = 4/1

The correct answer choice is:

  • C. 4 to 1
<h3>Part B: </h3>

Complete the statement:

For every student receiving a D, ______ students received a B.

<u>As per table given:</u>

  • 4 students received a D and 8 students received a B

<u>The ratio D/B is:</u>

  • 4/8 = 1/2

<u>The statement is:</u>

  • For every student receiving a D, 2 students received a B.
7 0
2 years ago
What would be the best first step in solving 0.05x + 0.01 = 0.025? Explain.
ad-work [718]

Answer:

Step-by-step explanation:

it would be to subract 0.01 from 0.025 because you want to get the x by itself

4 0
3 years ago
How long does the turtle run in 1 seconds if it runs 25 feet in 40 seconds ?
mixer [17]
7.5 inches
when you take the total of 25 feet and change to inches, then divide by 40, comes out to 7.5
8 0
2 years ago
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