1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
e-lub [12.9K]
3 years ago
5

Im sorry for so many questions but i need help badly.

Mathematics
1 answer:
vlada-n [284]3 years ago
5 0
The ratio of the circumference to the diameter is defined as pi
pi=circumference/diameter
that is how they got pi
in this question it woul be 15.7/5 which would be 3.14,





c=2pir
a=pir^2

c=2pir=16pi
divide both sides by 2pi
r=8

a=pir^2
a=pi8^2
a=pi64
a=64pi in²
You might be interested in
Shawn is coasting down a 500 \text{ cm}500 cm500, start text, space, c, m, end text long ramp on his inline skates. The wheels o
mrs_skeptik [129]

Answer:

it is 500

Step-by-step explanation:

is five hundred .1 in khan academy though which is weird

5 0
3 years ago
Find the value of x help me pls
goldenfox [79]

Answer:

x=12

Step-by-step explanation:

Since the angle needs to add up to 90, you will first need to subtract 30 from 90. This will leave you with 60. Next you will divide 60 by 5 which will give you 12 which is the answer.

6 0
2 years ago
Read 2 more answers
A scientist testing the effects of a chemical on apple yield (apples/acre) sprays an orchard with the chemical. A second orchard
JulsSmile [24]

Following are the dependent variables:

<em>1. The amount of water that each orchard receives.</em>

<em>2. The species of trees in the orchard.</em>

Reason:

The exercise scientist is looking for the effects of a chemical between an apple crop to which it is administered and another to which it is not, 4 options are presented, of which it is essential to count as a variable the amount of water each Orchard and tree species in the orchard, since they can generate alterations in the results, the other two variables of the exercise such as number of apples and size of the orchards are not significant and their variations do not affect the scientist's objective.

Learn more about Dependent Variable on:

brainly.com/question/1670595

#SPJ4

3 0
2 years ago
HELP PLS! It’s question 15
vredina [299]

Answer:

A: C = 15N

Step-by-step explanation:

30/2 = 15 (the cost of 1 class)

7 0
2 years ago
Triangles F H G and K J G share common point G. The lengths of sides H G and G J are congruent. Angles F H G and K J G are right
Elza [17]
The answer is D...........
5 0
2 years ago
Read 2 more answers
Other questions:
  • 16/25 divided by 15/8​
    12·2 answers
  • determine the quadratic function f whose graph is given. the vertex is (2,-7) and the y-intercept is -3
    10·1 answer
  • Divide. (3a3 + 6a2) ÷ 3a  how do I do this?
    14·1 answer
  • 6x+19+3x-6+5x-15=180​
    15·2 answers
  • the morgan famili and the alexander family each ised their sprinkles last summer. the water output was 20. l per hour. The water
    13·1 answer
  • What is the slope of the line that passes through the points (6, 2) and (4, 10)?
    9·2 answers
  • 1 The table below shows the number of minutes spent walking and the approximate calories burned. Is
    14·1 answer
  • A car is traveling at 25 miles per hour on a residential street. About how many feet does it travel per second?
    14·1 answer
  • The ratio of forks to spoons in the cafeteria is 15:6. If there are 45 forks, how many utensils are there altogether?
    12·1 answer
  • Find the surface area of the net below.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!