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Vitek1552 [10]
4 years ago
14

Please help me with this i suck at math

Mathematics
1 answer:
Romashka-Z-Leto [24]4 years ago
7 0

Answer:

x = 11

Step-by-step explanation:

-11 + 4x + 9x - 9 = 123

-11 + 4x + 9x  = 132

4x + 9x = 143

13x = 143

x = 11

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ΔABC is dilated by a factor of 3 to produce ΔA'B'C'.
Rus_ich [418]

Answer:

Option B

Step-by-step explanation:

Dilation does not change the value of angle.

so angle measurement should be same as before .

Angle A= 37

Scale factor is 3 so multiply length by 3

So A'C'= 3×5 =15

7 0
2 years ago
if you deposit $8000 into an account paying 9% annual interest compunded semi anually how long will it take for your money to do
Anna007 [38]

Answer:

7.87 years

Step-by-step explanation:

#First we determine the effective annual rate based on the 9% compounded semi annual;

i_m=(1+i/m)^m-1\\\\=(1+0.09/2)^2-1\\\\=0.09203

#We then use this effective rate in the compound interest formula to solve for n. Given that the principal doubles after 2 yrs:

A=P(1+i)^n\\\\A=2P, i=i_m\\\\16000=8000(1.09203)^n\\\\2=1.09203^n\\\\n=\frac{log \ 2}{log \ 1.09203}\\\\=7.87324\approx7.87 \ yrs

Hence, it takes 7.87 years for the principal amount to double.

4 0
3 years ago
Combine Like Terms:<br><br> 7X + 3M - 2(2X + 8) + 24 + 8M - X<br> so hard
Elza [17]

Answer:

11M + 2X + 8

Step-by-step explanation:

Hope this helps!! :))

7 0
2 years ago
Read 2 more answers
WHAT IS HELP PLEASE <br><br> 6x2 -2x3 +x4 =?<br> DONT ANSWER TO GET QUICK POINTS
blondinia [14]

Answer:

i told you in the comment it equals 7

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
12 cos theta minus 16 sin theta is equal to zero find 2 sin theta + cos theta​
gayaneshka [121]

Answer:

2sinθ + cosθ = 2

Step-by-step explanation:

12 cos θ - 16 sinθ = 0

=> 3 cos θ -4 sin θ = 0

=> tanθ = 3/4

let P = 3x

B = 4x

=> H= 5x

=> sinθ = P/H = 3/5

cosθ = B/H = 4/5

2sinθ + cosθ

= 2× 3/5 + 4/5

= 6/5+4/5

= 10/5

= 2

=> 2sinθ + cosθ = 2

5 0
3 years ago
Read 2 more answers
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