3 years ago

I need help with this question?

Mathematics

1 answer:

hjlf3 years ago

7 0

arccos (-1/2) = angle whose cosine = -1/2

= 2pi / 3

Its the first choice.

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What number can go in the box to make the number sentence true?

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A restaurant placed a 2- quarter pitcher of water on each 76 tables. the water was severed from from a 50- gallon containter. Ho

Law Incorporation [45]

Answer:

There would be 12 gallons left

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the kinetic Energy of a 110 kg linebacker rushing towards his football

Leviafan [203]

<u>Answer:</u>

The Kinetic energy of the 110 kg linebacker is 1375 J

<u>Solution:</u>

The kinetic energy of an object is the energy produced by its velocity. Kinetic energy of an object is directly proportional to the mass and the square of the its velocity.

Therefore, the formula for kinetic energy is

$KE=\frac{1}{2} \times m v^{2}$

Here, The linebacker’s mass m = 110 kg

The linebacker’s velocity v = 5 m/s

So by substituting the values,

The kinetic energy of linebacker is

$K E=\left(\frac{1}{2} \times 110 \times 5 \times 5\right) \text { Joules } \\\\ \Rightarrow (\frac{2750}{2}) Joules = 1375 Joules$

3 0

3 years ago

The product of two rational is (-28/81).if one of the number is -4/15.find other

Margaret [11]

Answer:

35/27

Step-by-step explanation:

We simply need to divide the product of the numbers (-28/81) by one of the numbers (-4/15):

$\frac{\frac{-28}{81}}{\frac{-4}{15} } \\ \\= \frac{-28}{81} * \frac{15}{-4} \\\\= \frac{7 * 5}{27} = \frac{35}{27}$

The second number is 35/27.

7 0

3 years ago