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LUCKY_DIMON [66]
3 years ago
15

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

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Answer:

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Step-by-step explanation:

4 0
3 years ago
What is the slope of the line defined by the equation 3x - 4y = 5?
vodomira [7]
First, you have to answer the question in simplest form:
<span>3x - 4y = 5 (Subtraction property of equality) Subtract both sides by -3x.
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8 0
3 years ago
If csc x = −5, find csc(−x) find the period and horizontal shift
ella [17]

Answer:

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Horizontal shift = 0

Step-by-step explanation:

We know that \sin (-x) = - \sin x and as \csc x = \frac{1}{\sin x}, so, we can write \csc (-x) = - \csc x

Therefore, the if \csc x = - 5 then \csc (-x) = - \csc x = - ( - 5) = 5 (Answer)

Now, the period of \csc x is 2π, hence the period of \csc (- x) is also 2π.  (Answer)

Again. \csc ( - x) = \csc (-x + 0), hence, the horizontal shift of \csc (- x) is 0. (Answer)

6 0
3 years ago
Can someone pls help me with this?
lara [203]

Answer:

14 is A

15 is B

Step-by-step explanation:

14 . the answer is a because first off the slope is negative so we can immediately eliminate B and D second of all the slope is 1/2 so we can eliminate D and get that the answer has to be a

15. answer is B for this one because first of all the slope is negative so we can immediately eliminate A and c and second of all the y-intercept would be 120 because 90 is what x=1 so we would have to add 30 to get what y would equal when x=0 if that makes sense

5 0
3 years ago
A jewellery shop is having a sale.
elena-s [515]

Step-by-step explanation:

if 70% of the orice is 420 then

70x = 100 × 420

70x = 42000

x = 42000/70

x = 600

3 0
3 years ago
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