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11Alexandr11 [23.1K]
2 years ago
8

What is the scale factor of this dilation? A 1/5 B 1/2 C 1 D 2

Mathematics
2 answers:
Nana76 [90]2 years ago
3 0
The answer would be B
HACTEHA [7]2 years ago
3 0
The answer is b it is yes
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PLEASE HELP DUE IN ! HOUR
alekssr [168]

Answer:

c. Mary charges $12.00 per hour for labor to paint houses. What is x, the number of hours Mary worked if she charged $240.00 for labor?

Step-by-step explanation:

8 0
3 years ago
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Can someone help with this math question please
hoa [83]
The only point in the solution space is that of selection ...
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5 0
3 years ago
Suppose that 1 kg of Sodium-24 is reduced to 0.0156 kg in 90 hours. What is the half-life, in hours, of Sodium-24?​
N76 [4]

Answer:

14.99 hours

Step-by-step explanation:

The formula for half-life is given as,

R/R' = 2ᵃ/ᵇ...................... Equation 1

Where R= Original mass of sodium-24, R' = mass of Sodium-24 after disintegration, a = Total time taken for sodium-24 to disintegrate, b = half-life of sodiun-24.

Given: R = 1 kg, R' = 0.0156 kg, a = 90 hours

Substitute into equation 1 and solve for b

1/(0.0156) = 2⁹⁰/ᵇ

Taking the log of both side

log[1/(0.0156)] = log(2⁹⁰/ᵇ)

log[1/(0.0156)] = 90/b(log2)

90/b = log[1/(0.0156)]/log2

90/b = 6.0023

b = 90/6.0023

b =  14.99 hours

b = 14.99 hours.

Hence the half-life of Sodium-24 is 14.99 hours

7 0
3 years ago
Whats the answer for this question
dezoksy [38]

Answer:

0.00939495805 about 0.01

Step-by-step explanation:

basically solving for arccos(8.5/9.9) in degrees, had to run through calculator

8 0
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frozen [14]

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lets use X as a number

(x×2)+(x)+(x-40)

4 0
3 years ago
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