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liubo4ka [24]
2 years ago
10

Precalc Help me Please

Mathematics
1 answer:
Likurg_2 [28]2 years ago
7 0

We just need to solve for y when x = -2

Solution:

y = 2|-2 + 1|

y = 2|-1|

y = 2(1)

y = 2

Therefore, the answer is Option 3

Best of Luck!

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Julia is standing 2 feet away from a lamppost. If she casts a shadow of 5 feet and the light makes a 20° angle relative to the g
givi [52]

Answer:

2.5477 feet

Step-by-step explanation:

Refer the image attached to understand my solution.

BC = height of lamppost.

DE = Julia

AD = shadow of Julia

BD = 2 feet.      AD = 5 feet

BA = BD + AD

       = 2 + 5 = 7 feet

In ΔABC

tan 20° = \frac{BC}{BA}  = \frac{BC}{7}

BC = 7 * tan 20°

BC = 2.5477 feet

SO the height of lamppost = 2.5477 feet

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2 years ago
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3 years ago
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What expression shows 4 less than a number?<br> A. n + 4<br> B. n - 4<br> C. 4 - n<br> D. n(4)
Elis [28]

Answer:

B

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Shontell spends $7 a month plus $0.10 per minute. Determine whether the cost per month is proportional to the to the number of m
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gavmur [86]

Answer:

<em>(D). (8, - 5) </em>

Step-by-step explanation:

Coordinates of a center of a circle (x - h)² + (y - k)² = r² is (h, k)

Coordinates of the midpoint are ( \frac{x_{1} +x_{2} }{2} , \frac{y_{1} +y_{2} }{2} )

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- 1 = (3 + y) / 2 ⇒ y = - 5

<em>(D). (8, - 5)</em>

6 0
2 years ago
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