2 years ago

Can someone help me?

Mathematics

1 answer:

nirvana33 [79]2 years ago

6 0

So you can do number one is d

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H(x) = x - 5 <br> g(x) = 2x + 3 <br> Find (h o g) (8)

faltersainse [42]

Answer:

Step-by-step explanation:

Hope it helps

7 0

2 years ago

A motorboat travels Downstream on a river for 5 hours. The speed of the current is 2 km/h. The river flows into a still Lake and

lara [203]

Answer:

I think it is 10 km/hr

Step-by-step explanation:

5 hrs = 40 more with 2 km/hr current

2 hrs= less 40 no current

40-2x5=30

30 without current for three hours

30/3=10 km/hr no current

CHECK

10x2=20

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8 0

2 years ago

If you can explain your answer that’d be great!! Thank you!

Rasek [7]

Answer:

$A(t)=A_{0}e^{\frac{ln(\frac{1}{2})}{22}t}$

Step-by-step explanation:

This half life exponential decay equation goes by the formula:

$A(t)=A_{0}e^{kt}$

Where

$k=\frac{ln(\frac{1}{2})}{Half-Life}$

Since half life is given as 22, we plug that into "Half-Life" in the formula for k and then plug in the formula for k into the exponential decay formula:

So,

$k=\frac{ln(\frac{1}{2})}{Half-Life}\\k=\frac{ln(\frac{1}{2})}{22}$

Now

$A(t)=A_{0}e^{\frac{ln(\frac{1}{2})}{22}t}$

third choice is correct.

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2 years ago

Simplify the expression<br> 3n+–9n+–8+–7n2

Lunna [17]

Answer: -7n^2-6n-8

Step-by-step explanation:

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2 years ago

Round 355,367,489 to the nearest hundred thousand

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400400000
Need to add this to answer

7 0

3 years ago

Read 2 more answers