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3 years ago

How do you use the order of operations to evaluate expressions with exponents?

1 answer:

5 0

Using BEDMAS, it would be brackets first, so anything Inside a set of brackets would be solved first, and would follow the same rule. Once the brackets have been solved, next would be the exponents. Since your brackets have been solved you can expand with the exponents. After exponents, would be anything that has to be divided or multiplied. These two operations are interchangeable based on what is more convenient or beneficial to do first. And lastly, addition and subtraction, which once again are interchangeable operations

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Given: A = {a, e, i, o, u}, B = {a, l, g, e, b, r}, C = {m, y, t, h}, A ∩ C is

Assoli18 [71]

the answer is { } "an empty set or phi"

because there isn't any common elements between the two sets

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3 years ago

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Can someone help me fast!!!

adoni [48]

W>-3

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4 years ago

Simplify by Distributing and then Combining Like Terms (C.L.T.): 4(2m+5n)−3(m−7n)

MaRussiya [10]

Answer:

5m+41n

Step-by-step explanation:

4(2m+5n)-3(m-7n)

8m+20n-3m+21n

8m-3m+20n+21n

5m+20n+21n

5m+41n

Please mark me as Brainliest if you're satisfied with the answer.

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3 years ago

Solar panels installed in a backyard have a cross section that is a right triangle. The diagram shows the approximate dimensions

Citrus2011 [14]

Answer:

About 4.2 ft

Explanation:

The area of the traingle can be calculated in two ways.

$A=\frac{1}{2}\text{width}\cdot\text{length}$

where width = 4.4 ft and length = 13.6 ft.

Putting in the values for width and length gives

$\begin{gathered} A=\frac{1}{2}13.6\cdot4.4_{} \\ \boxed{A=29.92ft^2} \end{gathered}$

The other way that the area can be calculated is

$A=\frac{1}{2}\cdot\text{height}\cdot\text{base}$

where height = vertical length and base = 14.3 ft; therefore.

$\begin{gathered} A=\frac{1}{2}14.3h \\ A=7.15h \end{gathered}$

This must equal the area of the triangle we found above; therefore,

$A=29.92=7.15h$ $29.92=7.15h$

dividing both sides by 7.15 gives

$h=\frac{29.92}{7.15}$ $\boxed{h\approx4.2ft}$

which is our answer!

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1 year ago

How do you change a fraction into a decimal

kirill115 [55]

You want to get the <span>denominator (bottom) of the fraction to a number such as 10, 100 or 1,000. Then you are able to change the fraction into a decimal by having the decimal point and the number afterwards, for example: 1/5=2/10, 2/10=.2.</span>

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3 years ago

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