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Ivan
3 years ago
14

How is the percent efficiency of a machine determined?

Mathematics
2 answers:
Stels [109]3 years ago
8 0

The answer is B. I just answered this question earlier!

Archy [21]3 years ago
7 0

Answer:

i need the ansrew too

Step-by-step explanation:

hehe

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Find the approximate side length of a square game board with an area of 105 in2.
aleksley [76]

Answer:

Rounded to the nearest inch: 10

Rounded to the nearest tenth: 10.2

Rounded to the nearest hundredth: 10.25

Step-by-step explanation:

To find the area of a square, we multiply the side length by itself, or in other words, SQUARE the side length!

A=s^2

We are given the area, so plugging that into our equation looks like this:

105=s^2

To eliminate the exponent, take the square root of both sides of the equation!

\sqrt{105}=s

From here, there are a few paths to take, depending on what your teacher is looking for. I will evaluate the approximate of the square root by finding the nearest perfect squares.

The nearest perfect square less than √105 is √100, and the nearest perfect square greater than √105 is √121.

105 is closer to 100 than to 121, so √105 is closer to √100.

√100 is equal to 10, so the √105 is approximately 10 inches!

Using a calculator to check:

\sqrt{105}=10.247 inches

8 0
1 year ago
PLSS ANSWER
icang [17]
The answer is one and five eighths.
7 0
2 years ago
A recipe uses 8 3/4 cups of milk for every 3 1/2
Fed [463]
2 1/2 cups of milk for each cup of oatmeal
4 0
2 years ago
On a coordinate plane, a line goes through (negative 3, negative 4) and (3, 0).
arsen [322]

Answer:

The slope is Negative three-halves and contains the point (0, 2).

Step-by-step explanation:

(-3,-4)(3,0)

M= -4/-6 = 2/3

⊥M = -3/2

0 = 2/3(3) + B

B=2

5 0
3 years ago
Compute the average (mean) from the data shown. (round to the nearest tenth)
Alexus [3.1K]

Answer:

(C) 75.1

Step-by-step explanation:

Add all the numbers then divide by numbers of numbers their are

91+91+91+97+65+37+41+76+ 87= 676

676/9= 75.1111111111 and it goes on forever

6 0
3 years ago
Read 2 more answers
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