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elena-14-01-66 [18.8K]
2 years ago
7

What is the answer to this and show the work please.

Mathematics
1 answer:
Gre4nikov [31]2 years ago
3 0
Which method? There is the substitution method, elimination method, and comparison method
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How can I solve this problem?
HACTEHA [7]

Answer:

25*pi or

78.5 square units.

Step-by-step explanation:

If there was no shaded area, the area of the circle would be pi * r^2

r = 10

Area = pi * 10^2

Area = 100 * pi

Since there is a shaded area, the shaded part looks to be 1/4 of the whole. There's no indication of what it actually is, but 1/4 should be close enough.

Area_shade = 1/4 (100*pi)

Area_shade = 25 * pi

That's one answer.

Another is 25 * 3.14 = 78.5 square units

7 0
3 years ago
Find the equation of the line which passes through the point (-4,12) and is perpendicular to the given line. Express your answer
Vika [28.1K]

Answer:

y = 1/7x + 88/7

Step-by-step explanation:

y = mx +b

since it is perpendicular you have to get the negative reciprocal of the slope which is 1/7

y = 1/7x + b then you would plug in your points

12 = 1/7(-4) + b and then solve for b

12 = -4/7 + b

+ 4/7

88/7 = b

y = 1/7x + 88/7

8 0
3 years ago
What is the equation of the graph below?<br>​
Sonja [21]

The equation of the graph is y= -(x+3)^2 +1

Choice A is the correct answer

4 0
3 years ago
Read 2 more answers
Solve the equation: x2 = 1
oee [108]

Answer:

x = 0.5

Step-by-step explanation:

hope this helps!

3 0
3 years ago
Read 2 more answers
Which value is a solution to the inequality 2x − 5 &lt; −12?
aleksandr82 [10.1K]
The correct answer would be -4

explanation:
2x-5<-12, add 5 to both sides so then you get 2x<-8, then divide by two, x<-4.
8 0
3 years ago
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