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4 years ago

Answer this behind me

Mathematics

1 answer:

Lynna [10]4 years ago

5 0

Answer:

Step-by-step explanation:

Ke = 1/2mv^2

Ke= .5x500kgx(12m/s)^2

Ke = 36,000 J

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Simplify. 5 - {-(-2)} A)-3 B) 3 C)-7 D) 7

Fed [463]

5 - {-(-2)}
5 - {+2} (negative + negative = positive)
5 - 2 (negative + positive = negative)
3

5 0

3 years ago

The plumber wants to cut a 24-ft length of pipe into three sec- tions. The largest piece should be twice the length of the middl

lisabon 2012 [21]

Answer: Length of smallest piece is 3.43 feet.

Length of middle piece is 2× 3.43 = 6.86 feet

Length of largest piece is 4× 3.43 = 13.72 feet.

Step-by-step explanation:

Let the length of smallest piece be x

According to question, the middle piece is twice the length of the smallest piece.

So, length of middle piece be 2x

According to question, the largest piece is twice the length of the middle piece.

So, length of largest piece be 2(2x)=4x

Total length of pipe = 24 ft

So, it becomes,

$x+2x+4x=24\\\\7x=24\\\\x=\dfrac{24}{7}\\\\x=3.43\ ft$

Length of smallest piece is 3.43 feet.

Length of middle piece is 2× 3.43 = 6.86 feet

Length of largest piece is 4× 3.43 = 13.72 feet

4 0

3 years ago

Help the clock is ticking

Maurinko [17]

Answer:5

Step-by-step explanation:

6 0

3 years ago

Approximately ____% of the area under the normal curve is between mu minus sigma and mu plus sigmaμ− σ and μ+ σ.

antoniya [11.8K]

According to the empirical rule, approximately 68% of data fall within 1 standard deviation of the mean.

3 0

4 years ago

What percent of 48 is 12?

g100num [7]

Answer:

25%

Step-by-step explanation:

Given that we have to find what percent of 48 is 12

Let "x" be the required percent

From given statement,

what percent of 48 is 12

Let us say,

x percent of 48 is 12

Writing it mathematically we get,

x % of 48 is 12

Evaluate the above expression to find "x"

Thus 25 % of 48 is 12

7 0

3 years ago

Read 2 more answers