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Crank
3 years ago
5

From a board 8 feet in length, Emmet cut two 2-foot bookshelves. How much of the board remained?

Mathematics
1 answer:
Vladimir [108]3 years ago
5 0

Answer:

4ft

Step-by-step explanation:

a board is 8 ft in length

Emmet cut two 2-foot bookshelves = 2 foot + 2 foot = 4 foot

The board remaining is 8ft - 4 foot = 4 ft

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A piano turner charges $63 for 1.5 hours of work. Which proportion can be used to find x, the number of dollars the piano turner
weeeeeb [17]
$63. 1.5 hrs
$x. 4 hrs

63/x=1.5/4

x=63•4/1.5
x=252/1.5
x=168$
8 0
2 years ago
Solve for x: −1 < x + 3 < 5
MA_775_DIABLO [31]

Answer:

B

Step-by-step explanation:

Subtract 3 from all sides.

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6 0
3 years ago
10. The perimeter of a regular nonagon is 162 inches. The apothem is 97.8 inches. Find the area.
Katen [24]

Answer:

The area of the regular nonagon is 7921.8 square inches.

Step-by-step explanation:

Geometrically speaking, the area of a regular polygon is determined by following area formula:

A = \frac{p\cdot a}{2} (1)

Where:

A - Area of the regular polygon, in square inches.

p - Perimeter, in inches.

a - Apothem, in inches.

If we know that p = 162\,in and a = 97.8\,in, then the area of the regular nonagon is:

A = 7921.8\,in^{2}

The area of the regular nonagon is 7921.8 square inches.

8 0
2 years ago
4√(-81)+6√(-36)<br> (simplify your answer))
Lapatulllka [165]
When looking at expressions like this,, you need to remember that the square root of a negative number does not exist in the set of Real Numbers. This means that there is no way to simplify this expression,, making the correct answer to your question Undefined.
Let me know if you have any further questions.
:)
3 0
2 years ago
Can someone please answer this for me i cant figure it out.
Jlenok [28]
<h3>Answer:</h3>

\displaystyle x^{\frac{2}{3}}

<h3>Step-by-step explanation:</h3>

The rules of exponents tell you ...

... (a^b)(a^c) = a^(b+c) . . . . . . applies inside parentheses

... (a^b)^c = a^(b·c) . . . . . . . . applies to the overall expression

The Order of Operations tells you to evaluate inside parentheses first. Doing that, you have ...

... x^(4/3)·x^(2/3) = x^((4+2)/3) = x^2

Now, you have ...

... (x^2)^(1/3)

and the rule of exponents tells you to multiply the exponents.

... = x^(2·1/3) = x^(2/3)

3 0
3 years ago
Read 2 more answers
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