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3 years ago

5

What is the value of this expression

" align="absmiddle" class="latex-formula">?

2 answers:

Oksi-84 [34.3K]3 years ago

7 0

$-8^3=-8\cdot8\cdot8=-512$

BARSIC [14]3 years ago

6 0

-8^3 = (-8)(-8)(-8) = -512

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You will need 90 feet of fencing to put all the way around a rectangular garden. The width of the garden is 10 feet. What is the

WITCHER [35]

If it is a rectangle then the sides of the width would be the same. Also with the sides of the length. So add the widths, 10+10=20. Subtract 20 from 90, 90-20=70. Divide 70 by 2, 70÷2=35.
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3 years ago

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2 years ago

In △ABC, m∠A=19°, a=13, and b=14. Find c to the nearest tenth.

34kurt

We know that
Applying the law of sines

step 1
Find the value of angle B
a=13
b=14
A=19°
so

$\frac{a}{sin A} = \frac{b}{sin B} \\ a*sin B=b*sin A \\ sin B= \frac{b}{a}*sin A \\ sin B= \frac{14}{13} *sin 19 \\ sin B=0.3506 \\ B=arc sin(0.3506) \\ B=20.5$ °

step 2
with angle A and angle B find the angle C
A+B+C=180-----> solve for C
C=180-(A+B)------> C=180-(19+20.5)-----> C=140.5°

step 3
$\frac{a}{sin A} = \frac{c}{sin C} \\ a*sin C=c*sin A \\ c=a* \frac{sin C}{sin A} \\ c=13* \frac{sin 140.5}{sin 19} \\ c=25.4$

the answer is
the value of c is 25.4

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3 years ago

What is the graph of the equation 4x-5y=15

pantera1 [17]

Hello James!

Graph using the slope and y - intercept.
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Y-intercept: -3

The graph looks like this ↓↓↓

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Schach [20]

Answer:

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