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crimeas [40]
3 years ago
6

Evaluate the expression for the given value of the variable. |b| + b^3 ; b = -2, please show work!

Mathematics
1 answer:
Katen [24]3 years ago
4 0

So b=-2 so you plug b in

l(-2)l + (-2)^3.

The absolute value of -2 is just 2 so now it is

2 + (-2)^3.

-2 * -2 is 4 but 4 * -2 is -8. So 2 + (-8) or 2 - 8 which comes to equal (-6) or negative six.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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7 0
3 years ago
To find the height of a pole, a surveyor moves 160 feet away from the base of the pole and then, with a transit 6 feet tall, mea
Artyom0805 [142]

Answer:

306.8 feet

Step-by-step explanation:

Refer the attached figure .

A surveyor moves 160 feet away from the base of the pole i.e. ED = 160 m

Referring the image .

AC=ED=160 m

A transit i.e. AE is 6 feet tall.

AE = CD=6 feet

With a transmit the angle of elevation to the top of the pole to be 62° i.e. ∠BAC = 62°

To Find BC , use tigonometric ratio.

Tan\theta = \frac{Perpendicular}{Base}

Tan 62^{\circ}=\frac{BC}{AC}

Tan 62^{\circ}=\frac{BC}{160}

1.88*160=BC

300.8=BC

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7 0
3 years ago
PLEASE HELP simplify (b^4)^3
vaieri [72.5K]

Answer:

B  b^12

Step-by-step explanation:

power to the power rule

(x^a)^b = x^(a*b)

so (b^4)^3 = b^(4*3) = b^12

7 0
3 years ago
Read 2 more answers
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3 years ago
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