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3 years ago

14

QR = 36 ; PR = 45 ; PQ = 21, Sin ?_ = 21 / 45

2 answers:

Andreyy893 years ago

8 0

Answer:

R, R=27.8°

Step-by-step explanation:

21/45 = PQ/PR

Sin R = 21/45

R = 27.81814928

sammy [17]3 years ago

7 0

Answer:

Sin = PQ / PR = OPPOSITE / HYPOTENUSE

Step-by-step explanation:

Please find the attached file for a clearer understanding.

SOHCAHTOA

Sin = opposite / Hypotenuse

Cos = Adjacent / Hypotenuse

Tan = opposite / Adjacent

Math is fun

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If f(x)=x^2 what is g(x)<br> A. g(x)=1/9x^2<br> B. g(x)=(1/3x)^2<br> C. g(x)=3x^2<br> D. g(x)=1/3x^2

Pavlova-9 [17]

Answer:

the answer is B

Step-by-step explanation:

3 0

2 years ago

Plz explain and I'll give brainly!!!

miss Akunina [59]

Answer:

(2,21)

Step-by-step explanation:

y = 10.5x

plug 2 for x in the equation

y = 10.5(2)

then multiply 2 by 10.5

y=21

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2 years ago

Find the length of RA. A. 42 B. 84 C. 14 D. 7

fiasKO [112]

Answer:

$\large \boxed{\mathrm{B. \ 84}}$

Step-by-step explanation:

$LU$ bisects $RU$ and $UA$ .

$RU=UA$

$3m+21=6m$

Solve for m.

Subtract 3m from both sides.

$21=3m$

Divide both sides by 3.

$7=m$

Calculate $RA$ .

$RA=3m+21+6m$

$RA=9m+21$

Put m = 7.

$RA=9(7)+21$

$RA=63+21$

$RA=84$

3 0

3 years ago

Read 2 more answers

Twenty-five sixth-grade students were asked to estimate how many hours a week they spend talking on the phone. This dot plot rep

RUDIKE [14]

Answer:

where is the dot plot??

Step-by-step explanation:

7 0

2 years ago

A vehicle is travelling from rest. After 10 seconds its velocity will be 20ms find acceleration?

Paladinen [302]

Initial velocity (u) = 0m/s

Final velocity (v) = 20m/s

Time (t) = 10 s

Acceleration (a)

= (v - u)/t

= [(20m/s) - (0m/s)]/10s

= (20m/s)/10s

= (20m/s²)/10

=> 2m/s²

8 0

2 years ago