2 years ago

Will give brainliest answer

Mathematics

1 answer:

dlinn [17]2 years ago

3 0

A = 1 + 5^3-x, Isolate the variable by dividing each side by factors that don't contain the variable.

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The half price of helium-5 is 7.6 X 10 to the power of negative 22 seconds and the half-life helium -9 is 7 x 10 to the power of

Digiron [165]

Answer:

Approximately 9.211 times

Step-by-step explanation:

Given

$x = 7.6 * 10^{-22}s$ --- half life of helium-5

$y = 7 * 10^{-21}s$ --- half life of helium-9

Required

How many times greater is y than x

To do this, we simply divide y by x

$\frac{y}{x} = \frac{7 * 10^{-21}s}{7.6 * 10^{-22}s}$

$\frac{y}{x} = \frac{7 * 10^{-21}}{7.6 * 10^{-22}}$

Apply law of indices

$\frac{y}{x} = \frac{7 * 10^{-21--22}}{7.6}$

$\frac{y}{x} = \frac{7 * 10^{-21+22}}{7.6}$

$\frac{y}{x} = \frac{7 * 10}{7.6}$

$\frac{y}{x} = \frac{70}{7.6}$

$\frac{y}{x} = 9.211$

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2 years ago

Hours Worked vs Salary hours worked-left salary-right

Evgesh-ka [11]

Answer:

for every ten hours there is an extra 300 dollars.

pleaseeeeeeeeeeeeeeee mark brainlest

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Help me with everything plz

lora16 [44]

#25 IS 'C' 168!
24*7=168

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3 years ago

In July, a paleontologist found 368 fossils at a dig. In August, she found about 14 fossils per day.

Gemiola [76]

Answer: Yes

Step-by-step explanation:

The ratios of number found to the number of days are all equal to 14 fossils per day.

(Plus I just did this and got it wrong but saw the right answer which is this)

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2 years ago

Question 13 and I added a photo

Roman55 [17]

The answer is C. 90 degrees.

This is because angle R is one of the four angles of a square.

I hope this helps.

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