Pose two problems of everyday life where addition, subtraction, multiplication and division of integers are used

Mathematics

1 answer:

qaws [65]2 years ago

8 0

Answer:

taxes and at work

Step-by-step explanation:

you deal with money at work and you have to calculate numbers doing taxes.

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Which inequality represents the statement below?

patriot [66]

Answer:

B. X+6.4<9.9

Step-by-step explanation:

The sum of a number is represented by X. So X and 6.4 is X+6.4. Is less than 9.9, so <9.9. You get X+6.4<9.9.

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2 years ago

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If sec theta = - √30 / 3, find cos theta. if sin(-theta) = -0.97, find cos (π/2 - theta).

Cloud [144]

Step-by-step explanation:

$\cos \theta = \frac{1}{ \sec\theta } = - \frac{3}{ \sqrt{30} } = - \frac{3 \sqrt{30} }{30} = - \frac{ \sqrt{30} }{10}$

$\cos( \frac{\pi}{2} - \theta )= \cos \frac{\pi}{2} \cos \theta + \sin \frac{\pi}{2} \sin \theta$

Note that

$\sin( - \theta) = - \sin \theta$

$\cos \frac{\pi}{2} = 0 \: \: \: \: \: \sin \frac{\pi}{2} = 1$

Therefore,

$\cos( \frac{\pi}{2} - \theta ) = 0.97$

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2 years ago

One of Newton’s laws of motion states that objects in motion tend to stay in motion. What is the reason that this law may not al

Nastasia [14]

The answer is D.

The full specification of Newton's First Law is (from Wikipedia)

In an inertial frame of reference, an object either remains at rest or continues to move at a constant velocity, unless acted upon by a force.

On earth we're generally in slightly a non-inertial frame, with rotation and revolution around the sun. It's also impossible to turn of gravity, so objects are being acted upon by an outside force. Typically there's also the outside force of friction, which makes things tend to stop.

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2 years ago

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A car traveled 240 miles in 3 hours. At this rate, how many miles will the car travel in 1/2 hour?

Levart [38]

The car will travel eighty miles in 1/2 hour

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1 year ago

What value of n will make 35 - n = 25 TRUE ? A.) 5 B.) 9 C.) 10 D.)15

photoshop1234 [79]

C. 10. you can calculate this by adding n to both sides to get 35=25+n and then subtracting 25 from each side to get n=10.

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