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3 years ago

12

PLEASE HELP ASAP?!!!!!!!

1 answer:

Aleks [24]3 years ago

4 0

Answer:

76.9 in^2

Step-by-step explanation:

Area of circle

= (3.14) x(10.7)^2

= 3.14 x 114.49

= 359.4986 in^3

Let x = area of the smaller sector

x/77 = 359.4986/360

360x = 359.4986 x 77

360x = 27,681.3922

x = 76.9 (to the nearest tenth)

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Please help! i was wondering how you would solve this question!

Anon25 [30]

Answer: C. 150 km²

<u>Step-by-step explanation:</u>

Use similar triangle proportion to find x:

$\dfrac{x}{4.5}=\dfrac{15.3+7.4}{7.4}\\\\\\x=\dfrac{4.5(22.7)}{7.4}\\\\\\x=13.8\\\\\text{Notice that x is the diameter of the circle}\implies r=\dfrac{13.8}{2}=6.9\\\\\\\text{Find the area of the circle using }A=\pi r^2\\A=\pi (6.9)^2\\\\.\ =\pi (47.6)\\\\.\ =149.6\\\\.\ \approx150$

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3 years ago

Write two solutions for the following equation 2x+3y=24.

SVETLANKA909090 [29]

Answer: (12, 0) and (0, 8)

Step-by-step explanation:

This equation is in standard form. We can sub in a number for x to solve for y and vice versa.

Let's sub in 0 for x.

$2x+3y=24\\2(0)+3y=24\\3y=24\\\frac{3y}{3} =\frac{24}{3} \\y=8$

When x is 0 y is 8 giving us the coordinate (0, 8).

Now lets sub in 0 for y

$2x+3(0)=24\\2x=24\\\frac{2x}{2} =\frac{24}{2} \\x=12$

When y is 0 x is 12 giving us the coordinate (12, 0)

4 0

3 years ago

Read 2 more answers

Help.please ASAP will mark brainliest !!!

kupik [55]

The answer is D because if you continue the pattern the bottom number would have to be 8 and the top would have to be 7!!

8 0

3 years ago

Which rate is the best buy (meaning it has the lowest unit cost)?

denis23 [38]

Answer:

16 for $21.60

Step-by-step explanation:

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2 years ago

Read 2 more answers

Factor the expression 3b+18b+21

GrogVix [38]

Answer:

21b+21

Step-by-step explanation:

1. simply, combine like terms

3b t 18b +21

add 3b and 18b

it gives u 21b +21

3 0

3 years ago