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3 years ago

5

Write each percent as a decimal 21% 0.4%

2 answers:

Karo-lina-s [1.5K]3 years ago

8 0

21% is 0.21
0.4% is 0.004

ehidna [41]3 years ago

6 0

Answer:

21% would convert to 0.21 and 0.4% would convert to 0.004

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Ashley is making $500 a week at her job . She receives a 20 percent pay raise. A year later she takes a 5 percent cut. How much

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Answer:

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Step-by-step explanation:

500 * 1.2 = $600 after 20% pay raise

600 * .95 = $570 after 5% pay cut

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4 years ago

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What is the approximate circumference of a circle with a radius of 6.5 meters

erastova [34]

It's about C≈40.84 m

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3 years ago

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If each of the following represents the slope of a line (or line segment), give the slope a line that is perpendicular to it. (a

Crank

Answer:

$m_2 = -\frac{3}{4}$ -- (a)

$m_2 = -\frac{7}{3}$ -- (b)

$m_2 = -\frac{1}{4}$ --- (c)

$m_2 = -3$ -- (d)

Step-by-step explanation:

Given

$a.\ m = \frac{4}{3}$

$b.\ m = \frac{3}{7}$

$c.\ m = 4$

$d.\ m = \frac{1}{3}$

Required

Determine the slope of a perpendicular line

In geometry, the condition for perpendicularity is:

$m_2 = -\frac{1}{m}$

This formula will be applied in solving these questions.

$a.\ m = \frac{4}{3}$

$m_2 = -\frac{1}{m}$

Substitute 4/3 for m

$m_2 = -\frac{1}{4/3}$

Express as a proper division

$m_2 = -1/ \frac{4}{3}$

Convert to *

$m_2 = -1* \frac{3}{4}$

$m_2 = -\frac{3}{4}$

$b.\ m = \frac{3}{7}$

$m_2 = -\frac{1}{m}$

Substitute 3/7 for m

$m_2 = -\frac{1}{3/7}$

Express as a proper division

$m_2 = -1/ \frac{3}{7}$

Convert to *

$m_2 = -1* \frac{7}{3}$

$m_2 = -\frac{7}{3}$

$c.\ m = 4$

$m_2 = -\frac{1}{m}$

Substitute 4 for m

$m_2 = -\frac{1}{4}$

$d.\ m = \frac{1}{3}$

$m_2 = -\frac{1}{m}$

Substitute 1/3 for m

$m_2 = -\frac{1}{1/3}$

Express as a proper division

$m_2 = -1/ \frac{1}{3}$

Convert to *

$m_2 = -1* \frac{3}{1}$

$m_2 = -\frac{3}{1}$

$m_2 = -3$

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3 years ago

Find the perimeter of the polygon ABCD with its vertices at A(–4, –3), B(–4, 6), C(5, 6), and D(5, –3).

enot [183]

Check the picture below.

is simply a 9x9 square, so its perimeter is simply 4*9.

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3 years ago

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