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Anna [14]
3 years ago
14

Find the measure of each exterior angle for a regular pentagon. Round to the nearest tenth if necessary.

Mathematics
1 answer:
Andreas93 [3]3 years ago
7 0
I hope this helps you

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What are the solutions?<br>8x^2-12x-23=-5​
erastova [34]

Answer:

x = 3/4 + (3 sqrt(5))/4 or x = 3/4 - (3 sqrt(5))/4

Step-by-step explanation:

Solve for x over the real numbers:

8 x^2 - 12 x - 23 = -5

Divide both sides by 8:

x^2 - (3 x)/2 - 23/8 = -5/8

Add 23/8 to both sides:

x^2 - (3 x)/2 = 9/4

Add 9/16 to both sides:

x^2 - (3 x)/2 + 9/16 = 45/16

Write the left hand side as a square:

(x - 3/4)^2 = 45/16

Take the square root of both sides:

x - 3/4 = (3 sqrt(5))/4 or x - 3/4 = -(3 sqrt(5))/4

Add 3/4 to both sides:

x = 3/4 + (3 sqrt(5))/4 or x - 3/4 = -(3 sqrt(5))/4

Add 3/4 to both sides:

Answer:  x = 3/4 + (3 sqrt(5))/4 or x = 3/4 - (3 sqrt(5))/4

4 0
3 years ago
Given n(t) = -2(t+5)2 +4, find n(-8).
fiasKO [112]

Answer:

n(-8)=16 is the answer

4 0
3 years ago
The Mendes family bought a new house 10 years ago for $109,000. The house is now worth $193,000. Assuming a steady rate of growt
MatroZZZ [7]
The yearly rate of appreciation was $8400
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3 years ago
a box contains three pens two markers, and one highlighter. Tera selects one item randomly and does not return it to the box, th
Anna [14]

Answer:

For the pen 3/6 and for the marker 2/6

Step-by-step explanation:

Hope this helps

6 0
3 years ago
Last week, the daily low temperatures for a city, in degrees Celsius, were 5, 8, 6, 5, 10, 7, and 1. What was the average low te
ludmilkaskok [199]
The average low temperature would be 5+8+6+5+10+7+1 all divided by 7, so the answer is 6° celsius.
3 0
3 years ago
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