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Maru [420]
3 years ago
10

An energy department has estimated that solar power plants covering 4242 square miles, or 38% of a certain western state, could

generate enough electricity to meet the needs of the entire country. Find the area of the state
Mathematics
1 answer:
Oksanka [162]3 years ago
6 0

Let x be the area of the state.

Solar power plants covering 4242 square miles or 38% area.

So, \frac{38x}{100} = 4242

x = \frac{4242(100)}{38}

= 11,163 miles approximately.

Hence, area of the state is 11,163 miles approximately.

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Is the following relation a function? Two circles are shown, one labeled x and the other labeled y. The x circle contains the nu
Allushta [10]

Answer:

i  believe that it is a function.

Step-by-step explanation:

you do not have any of the exact same numbers with arrows ot one another.

5 0
3 years ago
Which expression is equivalent to 6–3?
Bond [772]

Your question is not well presented. See complete question below

Which expression is equivalent to 6^{-3}?

A) –63

B) 36

C) \sqrt[3]{6}

D) (\frac{1}{6} )^3

Answer:

The equivalent of 6^{-3 is (\frac{1}{6} )^3

Step-by-step explanation:

Given

Expression: 6^{-3}

Required:

Find the Equivalent Expression

To find the equivalent of this expression, we make use of law of indices.

One of the laws of indices states that

a^-b = \frac{1}{a^b}

If we apply this law to the expression above (6^{-3})

By comparison a = 6 and b = 3.

So, 6^{-3} becomes

6^{-3} = \frac{1}{6^3}

Simplifying further;

\frac{1}{6^3} = \frac{1}{6 * 6 * 6}

This can also be written as

\frac{1}{6^3} = \frac{1*1*1}{6 * 6 * 6}

By splitting the above expression; we have that

\frac{1}{6^3} = \frac{1}{6} * \frac{1}{6} * \frac{1}{6}

Multiplication law of indices states that;

a * a * a = a³. (Because they have the same base of a)

So, \frac{1}{6} * \frac{1}{6} * \frac{1}{6} can then be written as (\frac{1}{6} )^3

Hence,  \frac{1}{6^3} = (\frac{1}{6} )^3

So, the equivalent of 6^{-3} is (\frac{1}{6} )^3

7 0
3 years ago
Someone please help me this is the only question stopping me from graduatin class 2020
Sidana [21]

Answer:

EF = 3.43

Step-by-step explanation:

Sin θ = opposite / hypotenuse

Sin 26 = EF / 4.5

0.762 × 4.5 = EF

EF = 3.43

7 0
4 years ago
Need help asap !!!!!!!!
Rom4ik [11]

I'm going with the 3rd one ...


hope I helped !

6 0
3 years ago
Mean variance standard deviation discussions questions
Simora [160]

The answer will be Mean = 135 Variance = 62 and Standard Deviation = 8

<h3>What is the standard deviation? </h3>

Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.

Given that :

Proportion (p) = 54%

Sample size (n) = 250

Using Normal approximation :

Mean = np

Mean = 250 * 0.54 = 135

Variance = npq ; q = 1 - p = 1 - 0.54 = 0.46

Variance = (250 * 0.54 * 0.46) = 62.1 = 62

Standard deviation = √variance = √62.1

Standard deviation = 7.8803553 = 8

To know more about standard deviation follow

brainly.com/question/475676

#SPJ4

5 0
2 years ago
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