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scoundrel [369]
2 years ago
12

8. In AQRS, if m/Q = 30°, what must be the length of QR?

Mathematics
1 answer:
Veseljchak [2.6K]2 years ago
6 0

Answer:

=> 7√3

Step-by-step explanation:

Given :

∠ Q = 30°

RS/QR = tan 30°

7/QR = 1/√3

QR = 7√3

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I NEED HELP ASAP!!! 100 POINTS
nordsb [41]

Answer:

A

Step-by-step explanation:

We are given:

\cos(22f-1)=\sin(7f+4)

Recall the co-function identity:

\sin(\theta)=\cos(90-\theta)

Let θ = 7f + 4. So:

\sin(7f+4)=\cos(90-(7f+4))

Substitute:

\cos(22f-1)=\cos(90-(7f+4))

Remove the cosine:

\displaystyle 22f-1=90-(7f+4)

Distribute:

22f-1=90-7f-4

Subtract:

22f-1=-7f+86

Add 7f and 1 to both sides:

29f=87

Therefore:

f=3

6 0
3 years ago
Would 5x-7y=14 be considered a function and why?
nikitadnepr [17]

Answer:

Yes, because it is located on a graph

Step-by-step explanation:

3 0
3 years ago
Consider a student loan of ​$17 comma 500 at a fixed APR of 9​% for 15 years.
Andrews [41]

Answer:

  a) monthly payment: $177.50

  b) total amount paid: $31,950

  c) toward principal: $17,500; toward interest: $14,450

Step-by-step explanation:

a) The amount of the monthly payment (A) is computed from the principal (P), the annual interest rate (r) and the number of years (n) using the formula ...

  A = P·(r/12)/(1 -(1 +r/12)^(-12n))

Filling in your numbers, we can use r/12 = 0.09/12 = 0.0075, and 12n = 12·15 = 180:

  A = $17500·0.0075/(1 - 1.0075^-180) ≈ $177.50

__

b) The total payment over the term of the loan is 180 of these monthly payments:

  180·$177.50 = $31,950

__

c) $17,500 is paid toward the principal.

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6 0
3 years ago
Calculate the exact value of ( 4 1/3 - 1 2/5 ) ÷ 4/15
Blizzard [7]

the answer is 11.

use BEDMAS, and calculate the equation inside the brackets (answer to that is 44/15)

then divide it by 4/15 and you get 11

4 0
3 years ago
Read 2 more answers
Use inverse operations to love each equation--
Dominik [7]

a.) you start with 19=h/3-8 so you add 8 to both sides then you simplify 19+8 to 27 so the equation then becomes 27=h/3 from there you multiply each side by 3 so its 27*3=h then you simplify 27*3 which leaves you with 81=h u then switch it around and your final answer h=81

b.) you start with 0.6x +0.8=1.4 first you subtract 0.8 from both sides so the equation is 0.6x=1.4-0.8 then you simplify 1.4-0.8/ so it then becomes 0.6x=0.6 u then divide both sides by 0.6 so the equation is now x=0.6/0.6 you then simplify 0.6/0.6 so you are left with x=1

7 0
3 years ago
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