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mixer [17]
3 years ago
11

(3 ^−8⋅7^3) ^−2 in scientific notation please :)

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
4 0

Answer: B

Step-by-step explanation:

Multiply exponents by the square:

-2 x -8 = 16

3 x -2 = -6

So...

3^16 x 7^-6

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I know this one give me like 5 minutes
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3 years ago
A building is 2 ft from a 7 - ft fence that surrounds the property . A worker wants to wash a window in the building 11 ft from
White raven [17]

<u>Answer:</u>

The height of the ladder is 14.491 feet

<u>Explanation</u>:

Given the height is 11 feet

Base = 7 + 2 = 9 feet

Consider the ladder to be the hypotenuse

Applying Pythagoras Theorem,  

H^2   = P^2 + B^2

Substituting the values in the above formula,

H^2  = 112 + 92

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H^2 = 210

H = sqrt(210)

H = 14.491

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3 years ago
In a population, 11% of people are left handed. In a simple random sample of 160 people selected from this population, the propo
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Answer:

The claimed proportion (population) is

p=0.11

The sample proportion (p-hat) is

\hat{p}=0.10

Step-by-step explanation:

In the population, we have the parameter p that is 11%.

p=0.11

Then, a sample of n=160 is taken and the proportion of the sample is 0.10.

\hat{p}=0.10

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7 0
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Help pls look at the picture
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Answer:

Option A: -\frac{4}{3} is the correct answer.

Step-by-step explanation:

Given that:

Slope of the line = \frac{3}{4}

Let,

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We know that,

The product of slopes of two perpendicular lines is equals to -1.

Therefore,

\frac{3}{4}.m=-1\\

Multiplying both sides by \frac{4}{3}

\frac{4}{3}*\frac{3}{4}m=-1*\frac{4}{3}\\

m = -\frac{4}{3}

-\frac{4}{3} is the slope of the line perpendicular to the line having slope \frac{3}{4}

Hence,

Option A: -\frac{4}{3} is the correct answer.

3 0
3 years ago
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34kurt
12+4x^2+3x^3-2x is the answer.
5 0
2 years ago
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