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Paraphin [41]
2 years ago
14

Please help with these 2 questions!! (9 and 10) please show with solution needed!!

Mathematics
1 answer:
katrin [286]2 years ago
3 0
9 is m=7
1. 8(m+3)=5(m+9)
2. 8m+24=5m+45
3. get variable on side by its self
3m=21
m=7
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Find the value of the function sin 460
rodikova [14]

Answer:

Sin(460 radians)= .97054

sin(460 degrees)= 0.98480775301

Step-by-step explanation:

I'm not sure where you are from, but usually you are allowed to use a calculator. (At least I was when I took Algebra 2/Trig in 6th grade.)

You never specified radians or degrees so I will answer both.

sin(460 radians)= .97054

sin(460 degrees)= 0.98480775301

If you are not allowed to use a calc, then I suggest looking at unit circle videos on Khan Academy.

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3 years ago
Simplify the expression 15-8(3x-7)+x
Hoochie [10]
Simplified: -23x+71

15-8(3x-7)+x
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3 years ago
Which expression represents the sentence "five times a number, n"
olga_2 [115]

Answer:

5n

Step-by-step explanation:

it's 5 times N. So it's 5×N, but with Algebra you don't necessarily need to include the multiplication sign

5 0
2 years ago
Read 2 more answers
Solve 3(x−5) = 9. <br><br> x = −3 <br> x = 2 <br> x = 7 <br> x = 8 (this is the answer)
Mariulka [41]

Answer:

x = 8

Step-by-step explanation:

3(x−5) = 9   (by PEDMAS, distribute 3 into parentheses by distributive property)

x(3)−5(3) = 9

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3x = 9 + 15

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x = 8

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3 years ago
39 is what percent of 52?​
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1.3 percent

Step-by-step explanation:

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