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Fed [463]
3 years ago
5

I really need help with this question

Mathematics
1 answer:
DerKrebs [107]3 years ago
6 0
I think its B ......
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If y varies inversely with the square of x, and y = 26 when x = 4, find y when x = 2.
eduard

Answer:

D. 104

Step-by-step explanation:

y \:  \alpha  \:  \frac{1}{ {x}^{2} }  \\  \\ y =  \frac{k}{ {x}^{2} }

when y is 26, x is 4:

26 =  \frac{k}{ {(4)}^{2} }  \\ k = 416

when x is 2:

y =  \frac{416}{ {x}^{2} }  \\ \\ y =  \frac{416}{ {(2)}^{2} }  \\ y = 104

3 0
3 years ago
if an explosive shell can travel 500 yards in 1.5 seconds, a shell bursts with a 25 yard diameter of damage and it takes 3 secon
zzz [600]
an\ explosive\ shell\ can\ travel\ 500\ yards\ in\ 1.5\ seconds\ \ \ \rightarrow\\.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \rightarrow\ \ \ \  1000\ yards\ in\ 3\ seconds\\\\diameter = 25\ yards\ \ \ \ \ \rightarrow\ \ \ \ radius=12.5\ yards\\\\1000+12.5=1012.5\ [yards]\\\\Answer:\\ The\ farthest\ away\ a\ target\ could\ be\ hit\ with\  a\ shell\ is\ 1012.5\ yards
4 0
3 years ago
Plss help i’ll give brainliest thank you!
adoni [48]

Answer:

The absolute value of -9 is less than 9 I'm pretty sure

3 0
3 years ago
Help!!! Huge milestone!! I will give crown!!! The value of y is directly proportional to the value of x. If y=8 when x=10, what
PolarNik [594]

Answer:30

Step-by-step explanation:the initial statement is

y ∝ x

to convert to an equation multiply by k the constant

of variation

⇒ y = k x

to find k use the given condition

y = − 24 when x = 8 y = k x ⇒ k = y x = −22

∣

∣

∣22 y = − 3 x 22

∣∣∣

−−−−−−−−−−−−−−

when  x = 10

then y = − 3 × 10 = −30

6 0
3 years ago
If you save the same amount each week, the amount of money
Ksenya-84 [330]

Answer:

I don't really get your question. But if you save the same amount each week. The amount of money will be the amount you save each week multiplied by the number of weeks

4 0
3 years ago
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