2 years ago

Choose an appropriate metric unit for the mass of concrete in a section of sidewalk

Mathematics

1 answer:

ratelena [41]2 years ago

5 0

Answer:

It should be a kilogram.

Gram = too small

milligram = too small

meter = distance

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I need help with this question! will give thanks :)))

topjm [15]

Answer:

2 $\sqrt{13}$

Step-by-step explanation:

Use the distance formula and plug in the values

d=(3−(−3))2+(2−6)2√

d=(6)2+(−4)2√

d=36+16√

d= $\sqrt{52}$

d= 2 $\sqrt{13}$

6 0

3 years ago

Find the measure of the indicated aces and angles

Serggg [28]

Answer:

a=21

b=69

c=42

d=138

Step-by-step explanation:

c is supplementary to d (which is 138), so c=180-138= 42.

angle b is on the edge of the central angle 138, so b is 1/2, therefore, b=69.

angle a is complementary to angle b because any triangle that includes the diameter is a right angle, so angle a=90-69=21.

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3 years ago

pushups =4,situps =7- a) the ratio of sit ups done to push up done is 4:7 b) the ratio pushups done to set ups done is 4:7 c) fo

Vilka [71]

For every 4 push ups done there were 7 situps done

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3 years ago

How to do this question by proving the identity?

jeyben [28]

$\sin^3 \theta-\cos^3 \theta=(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)\\\\
(\sin \theta-\cos \theta)(\sin^2 \theta+\sin \theta\cos \theta +\cos^2 \theta)=(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)\\\\
(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)=(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)\\\\$

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3 years ago

If a circle has a diameter of 36cm, what is its exact area?

r-ruslan [8.4K]

Answer: 1017.88cm²

Step-by-step explanation:

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2 years ago

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