3 years ago

I need help I don’t understand

Mathematics

1 answer:

Arte-miy333 [17]3 years ago

7 0

Use mathpapa.com or cymath.com

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if j is 21 inches, k is 12 inches, and angle M measures 62 degrees, then find m using the Law is Cosines. round your answer to t

AURORKA [14]

Answer:

18.7

Step-by-step explanation:

The Law of Cosines is $c^2=a^2+b^2-2ab cos(C)$ , where c is the unknown side length of a triangle, a and b are the remaining two side lengths, and C is the angle opposite to side c. To answer this question just plug in the known values:

$m^2=21^2+12^2-2(21)(12) cos(62)$

Simplify:

$m^2=441+144-504 cos(62)$

$m^2=585-504 cos(62)$

$m=\sqrt{585-504cos(62)}$

m≈18.665...

When rounded to the nearest tenth, m=18.7

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2 years ago

A 4-foot tree was planted in 1984. The tree grows continuously by 22% each year from this point forward. Find the height of the

nata0808 [166]

Answer:

the tree will be 11.04 feet tall

Step-by-step explanation:

4 x 0.22 (22%) = 0.88

every year it grows 0.88 foot.

0.88 x 8 = 7.04

4 + 7.04 = 11.04 feet tall

sorry if this is wrong!

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2 years ago

15. Xavier filled a 36 ounce cup with water. He

aniked [119]

Answer:28.8 ounces

Step-by-step explanation:20% -36 =22.8

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The math team went to lunch to celebrate Ms. Renft's birthday on February 11th. The

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Answer:

$171.12

Step-by-step explanation:

Including the tip and cost, it is 171.12. Multiply 148.6 by 1.15, which includes the total cost plus another 15% for the tip.

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A store sells a package of comic books with a poster. A poster and three comic books cost $10.50. A poster and 12 comics cost $1

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answer:

there you goooo

Explanation

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