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
SSSSS [86.1K]
3 years ago
9

A(r) is a function that gives the area of ta circle with the radius r. It can be written in an equation form as A(r)=3.14r^2. wh

at is the value of A(5)
Mathematics
1 answer:
notsponge [240]3 years ago
4 0
A(r)=3.14r^2, when r=5

A(5)=3.14(5^2)

A(5)=3.14(25)

A(5)=78.5 u^2
You might be interested in
Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 15 hours. Together the
posledela
Let's call x1: The rate per hour of the number one mechanic. X2: The rate per hour of mechanic number two. The first thing you should do is identify the system of equations that best describes the problem. In this case it is a system of 2 equations with two unknowns which when solved gives a total of x1 = 85 $ / h and x2 = 50 $ / h. Attached solution.

5 0
3 years ago
In 1955 an antique car that originally cost 3,943 is valued at 64,125 if in excellent condition, winch is 2 1/4 times as much as
nika2105 [10]

Answer:

The value of the car in very nice condition is $28,500.

Step-by-step explanation:

Consider the provided information.

In 1955 an antique car that originally cost 3,943 is valued at 64,125 if in excellent condition, winch is 2 1/4 times as much as a car in very nice condition.

The mixed fraction can be written as:

2 \frac{1}{4}=\frac{9}{4}

Let x is the value of car in very nice condition.

64,125 =\frac{9}{4}x

x=\frac{64,125\times 4}{9}

x=28,500

Hence, the value of the car in very nice condition is $28,500.

7 0
3 years ago
Find the solution set of the inequality<br> 35- 4x &gt; 2
Orlov [11]
35-4x>2
-4x>2-35
-4x>-33
-x>-33/4
x<33/4    (x<8.25)

Solution: x<8.25.  or  x∈(-∞ , 8.25)
3 0
2 years ago
PLAESE HELP ASAP!!!!
vovikov84 [41]
11 5/8 + 9 1/2= 21 1/8
3/4 - 2/5= 7/20
4 5/6 - 2 1/2= 2 1/3
I think these are right, I apologize if they are wrong.
5 0
2 years ago
Read 2 more answers
Jason is 4.52 feet tall his sister is 0.75 times his hight how tall is his sister
STatiana [176]
His sister is 7.895 feet tall.
3 0
3 years ago
Other questions:
  • a Wheel 15 inches in diameter is spun around 4 full turns. What distance,to the nearest inch, did a mark on the edge of the whee
    14·2 answers
  • Please help with a answer key
    6·1 answer
  • If elephant grass grows 2 2/5 inches a day, how many inches will it grow in 7 days?
    12·2 answers
  • What is (3x+6)-(2x+2)
    9·1 answer
  • Jenny can type 1,200 words in 15 minutes how many can she type in an hour
    7·2 answers
  • If y varies directly as x and y =2 when x = 10, find y when x = 22 ?<br> Step by step work please
    12·1 answer
  • Help me I need to know this answer tomorrow I am having a exam for maths
    6·1 answer
  • Please help asap <br> What is 9 5/9 simplified
    10·2 answers
  • 5. Find 11% of 460. (1 point)<br> 46<br> 40.6<br> 50.6<br> 56
    13·2 answers
  • 4x + 3 = -9 slove the equation
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!