3 years ago

A circle has an area of 78.5 square inches. What is the radius of the circle?

Mathematics

1 answer:

Rainbow [258]3 years ago

6 0

Answer:

$\sqrt{24.98732606$ Decimal Form:

4.99873244

Step-by-step explanation:

geometry is the worst. but i have a way to remember how to find the area. (Apple Pies are too --> A=πr^2 --> area = pie×radius^squared) so basically you sub in 78.5 in for area and then you solve for r.

Hope i helped kinda lol

You might be interested in

Find the volume and round to the nearest tenth as needed

monitta

Answer: 1962.4 cubic mm

Step-by-step explanation:

The volume of the larger cone is $V=\frac{1}{3}(\pi)(10^{2})(20)=\frac{2000\pi}{3}$

The volume of the smaller cone is $V=\frac{1}{3}(\pi)(3^{2})(14)=42\pi$ .

So, the volume is $\frac{2000\pi}{3}-42\pi \approx \boxed{1962.4}$

3 0

2 years ago

Which of the following show an element of the sample space for first rolling a die and then tossing a coin?

Sphinxa [80]

A because if you use T3 it wouldn’t have make sense so only reasonable and solution that works is A

5 0

2 years ago

Based on the graphs of f (x) and g(x), what must the domain of (f ⋅ g)(x)be?

dimulka [17.4K]

Answer:

{x ∈ ℝ | x ≠ 2}

Step-by-step explanation:

4 0

2 years ago

The Davis family has five children and one dog. Claudia is 5 years older than Nicki. Nicki's twin brother, Hunter, is 12 years o

Juli2301 [7.4K]

Nicki:x (12)
Claudia:x+5
Hunter:12
Decade=10 years
Dog: x-10
Philip:(x-10)+3=x-7
Sara: x-8
Sara:4

5 0

3 years ago

B) f(x) = 3 |x – 41| + 5<br> Domain:<br> Range:

Readme [11.4K]

The domain is (-infinity, +infinity)
The range is (5, +infinity)

8 0

2 years ago