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
quester [9]
3 years ago
5

Evaluate the expression 3.14(a2 + ab) when a = 3 and b = 4. (Input decimals only, such as 12.71, as the answer.)

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
8 0
A= 3
b= 4

=3.14(a^2 + ab)
substitute the given a & b values in expression

=3.14((3)^2 + (3*4))
multiply inside parentheses

=3.14(9 + 12)
add inside parentheses

=3.14(21)
multiply

=65.94


ANSWER: 65.94

Hope this helps! :)
You might be interested in
Tell me quick and i will give thou brainliest
Anit [1.1K]

c, the answer is going by 3, so it is c.


7 0
3 years ago
Read 2 more answers
The sum of three numbers is 121 The third number is 3 times the second. The first number is 6 times the second. The first number
Mama L [17]

Answer:

The first number is

72.6

Step-by-step explanation:

Let second number be x.

First number= 6x

Third number= 3x

According to question,

6x+x+3x=121

or, 10x=121

or,x=121/10=12.1

First number= 6x=6×12.1=72.6

Third number=3x=3×12.1=36.3

3 0
2 years ago
Read 2 more answers
Help and hurry please
ira [324]

Answer:

D.

Step-by-step explanation:

First try to eliminate answers.

You have to work between 30 and 40 hours to get 1565.

It's not A or B.

Now, you can see that the choices are 31, and 35

1565 is only 15 more than 1550.

It's 31.

5 0
3 years ago
Add a bicycle shop all bicycles are on sale for $25 off the regular price if P represents the regular price in dollars of a bicy
Allushta [10]

Answer:

p-25

Step-by-step explanation:

5 0
2 years ago
Which of the following best describes the nitrogen fixation process?(1 point) Consumers convert nitrogen gas into ammonia, nitri
nordsb [41]

Answer:

Soil bacteria convert nitrogen gas into ammonia, nitrites, and then nitrates. Nitrates are then absorbed by producers.

Step-by-step explanation:

.

7 0
2 years ago
Other questions:
  • Why is the answer negative?
    11·1 answer
  • Find the area of the parallelogram! WILL GIVE BRAINLIEST FOR CORRECT ANSWER WITH A LITTLE BIT OF WORK :D
    11·2 answers
  • What number 24 thx a lot!
    14·2 answers
  • 17. A certain alloy contains 14.25% nickel. How much nickel is there in a piece weighing 375 pounds? Round your answer to the ne
    10·1 answer
  • Can someone help me out with this question plz
    12·1 answer
  • Parallel lines m and n are cut by a transversal t. Which two angles are NOT corresponding angles?​
    15·2 answers
  • 2 3/10x-5/7y-4 5/6y-2 4/5x
    13·1 answer
  • In January, Mr Tan's students read 20 books. In Febuary, they read 15 books. What is the percent increase or decrease in the num
    11·1 answer
  • Help I'm justing learning about this and I don't know what to start or do​
    10·1 answer
  • 18. Find the smallest angle in a triangle whose<br> sides are of length 3x, 4x and 6x.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!