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Vika [28.1K]
2 years ago
8

The instructions for a model airplane show a scale of 1 in:

Mathematics
1 answer:
aleksandrvk [35]2 years ago
5 0

Answer:

4 in

Step-by-step explanation:

given the scale is 1 in : 36 ft , then

length of drawing = 144 ft ÷ 36 = 4 in

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The question is, "Find the volume of the bodies given in the figures below, which have a hole along their entire length." How do
aniked [119]

Answer:

1782 cm³

Step-by-step explanation:

First, you measure the volume of the cuboid as a whole which is length x breadth x height, 9 x 12 x 18 = 1944 cm³. Then measure the volume occupied by the space, 3 x 3 x 18 since the hole runs along the entire length = 162 cm³.

Then you subtract the volume occupied by the hole from the volume of the cuboid in total, 1944 - 162 = 1782 cm³

4 0
2 years ago
A cheetah ran 300 feet in 2.92 seconds. What was the cheetah’s average speed in miles per hour? Show your work.
alexdok [17]

Answer:

about 70.0 mph

Step-by-step explanation:

speed = distance/time

(300 ft)/(2.92 s)·(1 mi)/(5280 ft)·(3600 s)/(1 h) = (300·3600/(2.92·5280)) mi/h

≈ 70.0498 mi/h

8 0
3 years ago
the stemplot below represents the distribution of the test scores for the final exam in a high school algebra course. what was t
Deffense [45]

Answer:

<u><em></em></u>

  • <u><em>Option A. 94</em></u>

Explanation:

The column of digits to the left (before the vertical line) contains the largest place-value digits.

Here is how you read the values:

  • First row: 65

  • Second row: 73, 74, 78

  • Third row: 80, 80, 81, 82, 85, 88, 89

  • Fourth row: 92, 93, 94.

Thus, the highest score received is 94.

8 0
3 years ago
How to factorize 2^{n+1}+2^{n-1}?<br><br>I know the answer is 5(2^{n-1}), but how do i get there?
Elina [12.6K]

Answer:

steps below

Step-by-step explanation:

2ⁿ⁺¹ +2ⁿ⁻¹ = 2ⁿ⁻¹ (2² + 1) = 5*2ⁿ⁻¹

7 0
3 years ago
Help and explain very easy hurry 10 points
stealth61 [152]

Answer:

\$18.97 per hour

Step-by-step explanation:

step 1

Find the total hours

(37 hours/week)*(52 week)=1,924 hours

step 2

Divide the annual salary by the total hours

\frac{36,500}{1,924}= 18.97\frac{\$}{h}

7 0
3 years ago
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