2 years ago

ANSWER CORRECTLY TEST GRADE DUE TODAY HELP PLEASE TYSM

Mathematics

1 answer:

allochka39001 [22]2 years ago

8 0

Answer:

Step-by-step explanation:

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A circle has a radius of 16 m. What is its circumference?

suter [353]

Answer:

C=100.53 CM²

Step-by-step explanation:

Formula to the circumference of a circle is 2π·r

2π=6.28

6.28·16=100.53 CM²

4 0

2 years ago

HELP PLEASE 30 POINTS! WILL MARK BRAINLIEST IF CORRECT!!!!!

KATRIN_1 [288]

Answer:

See Below.

Step-by-step explanation:

We want to verify:

$\cos(x-y)-\cos(x+y)=2\sin(x)\sin(y)$

We will utilize the following identities:

$\cos(x-y)=\cos(x)\cos(y)+\sin(x)\sin(y)$

And:

$\cos(x+y)=\cos(x)\cos(y)-\sin(x)\sin(y)$

So, by substitution, we acquire:

$(\cos(x)\cos(y)+\sin(x)\sin(y))-(\cos(x)\cos(y)-\sin(x)\sin(y))=2\sin(x)\sin(y)$

Distribute:

$\cos(x)\cos(y)+\sin(x)\sin(y)-\cos(x)\cos(y)+\sin(x)\sin(y)=2\sin(x)\sin(y)$

The first and third term will cancel:

$\sin(x)\sin(y)+\sin(x)\sin(y)=2\sin(x)\sin(y)$

Combine like terms:

$2\sin(x)\sin(y)\stackrel{\checkmark}{=}2\sin(x)\sin(y)$

5 0

3 years ago

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Divide (2x^2+x-45) by (x+5)

Ugo [173]

Answer

2x-9

Step-by-step explanation:

3 0

3 years ago

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When p = 12, t = 2, and s = 1/6, r = 18. If r varies directly with p and inversely with the product of s and t, what is the cons

Ilia_Sergeevich [38]

R = kp/st
18 = 12k/(1/6 x 2)
18 = 12k/(1/3)
18 = 36k
k = 18/36 = 1/2

3 0

3 years ago

Solve the equation. 33= p - 6.71

Amiraneli [1.4K]

P=33+6.71
= 39.71
add 33+ 6.71

6 0

3 years ago

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