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miss Akunina [59]
3 years ago
13

Solve: 10c + 20 = 40 c =

Mathematics
1 answer:
Dvinal [7]3 years ago
8 0
C= 2


...................................
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Answers? Not sure!!!
kaheart [24]

Answer:

-\frac{8}{45}

Step-by-step explanation:

Multiply the numerator by the reciprocal of the denominator.

4/5( −2/9)

7 0
3 years ago
Help this is due tomorrow please! Carter has 88 feet of fencing to enclose a dog pen in his yard. He is trying to decide whether
svet-max [94.6K]
<h3>Answer:</h3>

The circle makes the larger area

The difference in the two areas is roughly 132.2479 square feet.

=================================================

Explanation:

If Carter decides to go for a circle, then 88 is the circumference, which is the distance around the circle (aka perimeter of the circle).

Use this to find the radius needed

C = 2*pi*r

r = C/(2pi)

r = 88/(2pi)

r = 44/pi

I'll leave it in exact form rather than approximate it.

Once we know the radius, we can find the area of the circle.

A = pi*r^2

A = pi(44/pi)^2

A = pi*(1936/(pi^2))

A = 1936/pi

A = 616.247939651819 approximately

I used my calculator's stored version of pi to compute the area in the final step.

We'll be comparing this number later, so hold onto it for now.

-------------------------------------

If Carter instead decides for a square, then 88 is the perimeter since it's the amount of fencing he has to work with.

Divide it into 4 pieces to find the length of each side of the square (all sides are equal in a square)

88/4 = 22

Each side is 22 feet

The area of this square is (22)^2 = 22*22 = 484 square feet

--------------------------------------

Summary:

  • If Carter goes for a circular enclosure, then he gets roughly 616.2479 square feet.
  • The square enclosure only gets him exactly 484 square feet.

The circle wins in terms of larger area.

The difference being roughly 616.2479  - 484 = 132.2479 square feet.

3 0
2 years ago
I need help on this question plz
soldi70 [24.7K]

Sometimes. A chord is a diameter only if it passes through the center of the circle.

5 0
3 years ago
Read 2 more answers
Help with inequalities
max2010maxim [7]

Answer:

2(b - 9) \geqslant 26

Step-by-step explanation:

difference of a number and 9 means to subtract

b - 9

twice that means multiply by 2

2(b - 9)

at least is greater than or equal to

2(b - 9) \geqslant 26

8 0
3 years ago
The price of a certain new car increases by the same amount each year. The first year it was $23,000 in in the 10th year it was
Katyanochek1 [597]
3450 is theeee answer!!!!!!!!!!!
7 0
3 years ago
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