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AVprozaik [17]
3 years ago
12

4^2•2^-3 = 2 1/2 -128

Mathematics
2 answers:
Kitty [74]3 years ago
3 0
The answer is 2 because you multiply them both
Vaselesa [24]3 years ago
3 0
4^2 = 16

2^-3 = 0.125

16 • 0.125 = 2

The answer is 2.
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If Amelia would like to double her money in twelve years, how much interest does she need to earn? 6 percent 12 percent 10 perce
sveticcg [70]
We can assign the value "2x" as the amount of money that Amelia which to achieve in twelve years.
So, his initial money is X.
We can try each percent to test if it could double the amount in 12 years.
x+0.06*12years*x=1.72X
x+0.12*12*x=1.44x
x+0.1*12*x=2.2x
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4 0
3 years ago
Please help i will mark brainliest for anyone who can help me 15 points on the line
gregori [183]

Answer:

A: a^3

B: c^1 or just c

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6 0
3 years ago
The weekly earnings of students in one age group are normally distributed with a standard deviation of 47 dollars. A researcher
ELEN [110]

Answer:

Option D) 340

Step-by-step explanation:

We are given the following in the question:

Alpha, α = 0.05

Population standard deviation, σ = $47

Margin of error = 5

95% Confidence Interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

\text{Margin of error} = z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

5 = 1.96(\dfrac{47}{\sqrt{n}} )\\\\\sqrt{n} = \dfrac{47\times 1.96}{5}\\\\n = 339.443776\\\Rightarrow n \approx 340

Thus, the correct answer is

Option D) 340

7 0
3 years ago
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mojhsa [17]
The first thing we are going to do for this case is to model the igloo as a hemisphere.
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 Where,
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 We have then that the internal diameter is:
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 Answer:
 
the amount of space of the living area inside the igloo is:
 
V = 303.1 feet ^ 3
6 0
3 years ago
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