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Mashutka [201]
3 years ago
8

Find solutions to the equation below. Check all that apply.

Mathematics
2 answers:
zubka84 [21]3 years ago
7 0

16x^2 - 64 = 0

16x^2 = 64

x^2 = 64/16

x^2 = 4

sqrt{x^2} = sqrt{4}

x = -2, x = 2

Answer: B and F

nevsk [136]3 years ago
3 0

Answer:

B and F

2, -2

Step-by-step explanation:

16x^{2} -64=0

Add 64 to both sides.

16x^{2} -64+64=0+64

Simplify

16x^{2} =64

Divide both sides by 16.

\frac{16x^{2} }{16} =\frac{64}{16}

Simplify

x^{2} =4

x=\sqrt{4} ,-\sqrt{4}

Simplify

x=2,-2

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4 0
3 years ago
What is the slope of the line that passes through the points (1, 2) and (3, 12)?
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Answer:

Slope is 5

Step-by-step explanation:

(1, 2) and (3, 12)

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3 0
3 years ago
A rectangle is 20 meters long and 20 meters wide. If the length is increased by 10% and the width is decreased by 10%, what is t
Solnce55 [7]

Consider that the initial length and width of the rectangle are given as,

\begin{gathered} l=20 \\ b=20 \end{gathered}

After the length is increased by 10%, the new length (L) of the rectangle is calculated as,

\begin{gathered} L=(1+\frac{10}{100})\cdot l \\ L=(\frac{110}{100})\cdot20 \\ L=22 \end{gathered}

After the width is decreased by 10%, the new width (B) of the rectangle is calculated as,

\begin{gathered} B=(1-\frac{10}{100})\cdot b \\ B=(\frac{90}{100})\cdot20 \\ B=18 \end{gathered}

Then the area (A) of the new rectangle is calculated as,

\begin{gathered} A=L\times B \\ A=22\times18 \\ A=396 \end{gathered}

Thus, the new area of the rectangle is 396 square meters.

7 0
1 year ago
I the revenue for the week is $2000, and labor cost consists of two workers earning $8 per hour who work 40 hours each, what is
MA_775_DIABLO [31]

Revenue = $2000


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Answer: 16%

4 0
3 years ago
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