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SVEN [57.7K]
3 years ago
11

Im dumb sorry somebody help?

Mathematics
1 answer:
Rama09 [41]3 years ago
6 0
The decimal is .39024..., or rounded to percent it is 39%
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Find sin (A-B) if sin A = 4/5 with A between 90 and 180 and if cos B = 3/5 with B between 0 and 90
quester [9]

Answer:

sin(A-B) = 24/25

Step-by-step explanation:

The trig identity for the differnce of angles tells you ...

sin(A -B) = sin(A)cos(B) -sin(B)cos(A)

We are given that sin(A) = 4/5 in quadrant II, so cos(A) = -√(1-(4/5)^2) = -3/5.

And we are given that cos(B) = 3/5 in quadrant I, so sin(B) = 4/5.

Then ...

sin(A-B) = (4/5)(3/5) -(4/5)(-3/5) = 12/25 + 12/25 = 24/25

The desired sine is 24/25.

3 0
3 years ago
Howard picks apples at an orchard. He earns $4.35 for each hour he works and $2.20 for each bushel he picks. His goal is to earn
BaLLatris [955]
I got about 15.8 bushels of apples
8 0
3 years ago
Pls help me with my work ( ◠‿◠ )
iVinArrow [24]

Answer:

yes you may use the answer will be 100% correct

7 0
3 years ago
A) -40÷5(2) <br> B) (-2) + 3(12) ÷ 4<br> C) -2(3+4)
Furkat [3]
Always do brackets first

a) -40/10 = -4
b) 36/4 -2 = 7
c) -2 x 7 = -14
5 0
3 years ago
Read 2 more answers
The sum of −7 times a number and 8 times the sum of the number and 1 is the same as the number minus 7.
Novay_Z [31]

Answer:

n has no value.

There is no solution to this equation

Step-by-step explanation:

let n be the number

In pieces:

sum of the number and 1: (n + 1)

8 times the sum: 8(n + 1)

-7 times a number: -7n

sum of -7 times and...: -7n + 8(n + 1)

number minus 7: n - 7

the same as: =

All together:

-7n + 8(n + 1) = n - 7

-7n + 8(n+1)=n-7

-7n + 8n+8=n-7

0=-15

3 0
3 years ago
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