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2 years ago

Please hurry need it asap

Mathematics

2 answers:

vlabodo [156]2 years ago

8 0

Answer:

I think its B

Step-by-step explanation:

lions [1.4K]2 years ago

5 0

Answer:

use math w ay .co m its helps

Step-by-step explanation:

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Find the height of the flagpole and feet is it cast a 18 ft Shadow and the 5-foot 11-inch Man cast a 3-foot shadow. Round your a

omeli [17]

Answer:

36 ft

Step-by-step explanation:

The pole's shadow is 6 times the length of the man's shadow, so the pole is 6 times as high as the man.

6 × 5'11" = 30'66" = 35'6" ≈ 36 ft

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2 years ago

8) The total weight of 15 boxes is 45 pounds. How much would 40 boxes weigh?

nirvana33 [79]

Answer:

120 pounds I think

Step-by-step explanation:

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2 years ago

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The sum of twice a number and 6 is the same as 3 subtracted from the number itself

rusak2 [61]

3+3=6
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3 years ago

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Use the exponential decay model, Upper A equals Upper A 0 e Superscript kt, to solve the following. The half-life of a certai

Akimi4 [234]

Answer:

It will take 7 years ( approx )

Step-by-step explanation:

Given equation that shows the amount of the substance after t years,

$A=A_0 e^{kt}$

Where,

$A_0$ = Initial amount of the substance,

If the half life of the substance is 19 years,

Then if t = 19, amount of the substance = $\frac{A_0}{2}$ ,

i.e.

$\frac{A_0}{2}=A_0 e^{19k}$

$\frac{1}{2} = e^{19k}$

$0.5 = e^{19k}$

Taking ln both sides,

$\ln(0.5) = \ln(e^{19k})$

$\ln(0.5) = 19k$

$\implies k = \frac{\ln(0.5)}{19}\approx -0.03648$

Now, if the substance to decay to 78% of its original amount,

Then $A=78\% \text{ of }A_0 =\frac{78A_0}{100}=0.78 A_0$

$0.78 A_0=A_0 e^{-0.03648t}$

$0.78 = e^{-0.03648t}$

Again taking ln both sides,

$\ln(0.78) = -0.03648t$

$-0.24846=-0.03648t$

$\implies t = \frac{0.24846}{0.03648}=6.81085\approx 7$

Hence, approximately the substance would be 78% of its initial value after 7 years.

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2 years ago

What is 95% of 120 games?

Basile [38]

The answer to your question is 114

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3 years ago

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