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3 years ago

3.) Simplify the expression by combining like

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

3 0

$45s^2-19-s^2+16\\=45s^2-s^2-19+16\\=s^2(45-1)-19+16\\=44s^2+(-19+16)\\=44s^2-3$

Hope that helps and hope you get better!

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A quantity with an initial value of 670 decays continuously at a rate of 25% per hour.

AysviL [449]

Answer:

89.43

Step-by-step explanation:

a = 670 * (1 * .25)^7

a = 670 * (.75)^7

a = 89.43

4 0

3 years ago

50 POINTS!!! I NEED IT NOW!!!

MAXImum [283]

Answer:

37.699 cm³

Step-by-step explanation:

Sa of cone:

pi×r×l + pi×r²

(3pi × l) + (pi × 3²) = 24pi

3l + 9 = 24

3l = 15

l = 5 (slant height)

Height: h

h² + r² = l²

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3 years ago

Which graph is the graph of y=1/3x−4?

sertanlavr [38]

I hope this helps. If not, feel free to leave a feedback. also leave a comment if it helped.

8 0

4 years ago

Please answer this I don't understand how to do it thanks

Mars2501 [29]

Answer:

The answer is 8.6×10¹⁴

Step-by-step explanation:

You can evaluate it :

$(4.3 \times {10}^{8} ) \times (2.0 \times {10}^{6} )$

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$= 8.6 \times {10}^{8 + 6}$

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3 years ago

Read 2 more answers

How to tell if speed is increasing or decreasing calculus?

Reptile [31]

You will need data that logs the changes in speed from various, consecutive events. Which you can use to calculate the difference in speed and determine wether the speed is increasing or increasing.

Otherwise, you only need the initial and finak value to find the difference.

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6 0

4 years ago