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torisob [31]
3 years ago
13

Please help!! Help would be very much appreciated

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
5 0
Area of a circle = (pi)(radius squared)

Find the area of the larger circle, then find the area of the smaller circle and then subtract the difference.

Larger Circle:
A=(3.142)(5cm)2
A=(3.142)(25)
A=78.55

Smaller Circle:
A=(3.142)(2)2
A=(3.142)(4)
A=12.57

Subtract difference between the 2:

78.55-12.57= 65.98 cm is the area of the shaded portion
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Please someone help me!!!! SHOW ALL WORK! ive been stuck on this question for 2 days!! :((((((
Otrada [13]

Step-by-step explanation:

x² + y² − 8x + 10y − 8 = 0

Rearrange:

x² − 8x + y² + 10y = 8

To complete the square, take half of the x and y coefficients, square it, then add the result to both sides.

(-8/2)² = 16

(10/2)² = 25

x² − 8x + 16 + y² + 10y + 25 = 8 + 16 + 25

x² − 8x + 16 + y² + 10y + 25 = 49

Factor the squares:

(x − 4)² + (y + 5)² = 49

The center is (4, -5) and the radius is 7.

6 0
3 years ago
2y-3[3-4(y-5)+2(1-3y)]
soldi70 [24.7K]

Answer:

- 75 - 32y

Step-by-step explanation:

2y-3[3-4(y-5)+2(1-3y)]

= 2y - 3(3 - 4y + 20 + 2 - 6y)

= 2y - 3(25 - 10y)

= 2y - 75 - 30y

= - 75 - 32y

Brainliest???

4 0
3 years ago
Read 2 more answers
Can someone explain these math questions to me
kolbaska11 [484]
Should be choice 1 x being your slope and y your y- intercept

4 0
3 years ago
In a classroom of 3333 students, the ratio of boys to girls is 3:83:8. How many boys are in the class?
Paladinen [302]
3x+8x=3333
11x=3333
X= 303
Boys 3x,so 3*303=909
6 0
3 years ago
If f(×) = 3x + 7, which of these is the inverse of f(x)?​
Snowcat [4.5K]

Answer:

First equate 3x + 7 to any unknown

3x + 7 = P

Then make x the subject of the formula

3x + 7 = P

3x + 7-7= P-7

3x = P-7

3x ÷ 3 = (P-7) ÷ 3

x = (P-7) ÷3

Then interchange x with the unknown which I have as P

x = (P-7) ÷ 3

P = (x-7) ÷ 3

Then inverse of f(x)

is;

f-1(x) = (x-7) ÷ 3

Thank you.

BY GERALD GREAT.

5 0
2 years ago
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