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
Usimov [2.4K]
3 years ago
13

Evaluate the expression 3.14(a^2 + ab) when a = 3 and b = 4

Mathematics
2 answers:
otez555 [7]3 years ago
7 0

Answer:

ASK YOUR QUESTION

Middle School  Mathematics  5+3 pts

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

Report 13.07.2017

Answer

3.14(a^2 + ab) when a = 3 and b = 4

then

3.14(3^2 + 3*4)

= 3.14(9+12)

= 3.14(21)

= 65.94

15

Step-by-step explanation:

masya89 [10]3 years ago
5 0

Answer:

the answer is 21 <em>pi.</em>

Step-by-step explanation:

You might be interested in
Type your answer in the box. <br> b=2 y=6 o=4. <br> b3 - y - o
mel-nik [20]

Answ

70

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
The midpoint of GH is M( 6,-4). One endpoint is G(8,-2). Find the coordinates of endpoint H.
Finger [1]

Using the midpoint formula, the coordinates of endpoint H are (4, -6).

<h3>The Midpoint Formula</h3>

The midpoint formula is given as: (x_m, y_m) = (\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2} )

<em>Where</em>,

(x_m, y_m) = coordinates of the midpoint

(x_1, y_1) = coordinates of the first point

(x_2, y_2) = coordinates of the second point

Given the following:

(x_m, y_m) = M( 6,-4)

(x_1, y_1) = G(8,-2)

(x_2, y_2) = H(?, ?)

Plug in the values into the midpoint formula

M(6, -4) = (\frac{8 + x_2}{2}, \frac{-2 + y_2}{2} )

Solve for the x-coordinate and y-coordinate separately

6 = \frac{8 + x_2}{2}

  • Multiply both sides

6 \times 2 = 8 + x_2\\\\12 = 8 + x_2\\\\12 - 8 = x_2\\\\4 = x_2\\\\\mathbf{x_2 = 4}

-4 = \frac{-2 + y_2}{2}\\\\-8 = -2 + y_2\\\\-8 + 2 = y_2\\\\-6 = y_2\\\\\mathbf{y_2 = -6}

Therefore, using the midpoint formula, the coordinates of endpoint H are (4, -6).

Learn more about midpoint formula on:

brainly.com/question/13115533

3 0
2 years ago
What is the digit in 913 and where's the digit in the tens place and the value of the digit tens someone answer for my homework
lorasvet [3.4K]
4. Period with the digits 913 is called thousands period.
5. The digit in the ten thousand place is 1.
6. The value of 9 is hundred thousands.

Hope it will help you :)
3 0
3 years ago
Read 2 more answers
3. Which expression is equivalent to log532?
saul85 [17]

Answer: The Nth power xN of a number x was originally defined as x multiplied by itself, until there is a total of N identical factors. By means of various generalizations, the definition can be extended for any value of N that is any real number.

(2) The logarithm (to base 10) of any number x is defined as the power N such that

x = 10N

(3) Properties of logarithms:

(a) The logarithm of a product P.Q is the sum of the logarithms of the factors

log (PQ) = log P + log Q

(b) The logarithm of a quotient P / Q is the difference of the logarithms of the factors

log (P / Q) = log P – log Q

(c) The logarithm of a number P raised to power Q is Q.logP

log[PQ] = Q.logP

Step-by-step explanation:

8 0
2 years ago
Jin tried to evaluate 5 + 2 x 9 step-by-step.
Zigmanuir [339]

Answer:

5 + 2 x 9

Step 1 = 7 x 9

Step 2 = 63

Step-by-step explanation:

= 5 + 2 x 9

= 5 + ( 2 x 9 )

= 5 + 18

= 23

Step 2 = 7 x 9

= 63

Step 3 = 63

C. jin did not make a mistake

<em>Sorry </em><em>i'm </em><em>wrong </em><em>:</em><em>)</em>

4 0
3 years ago
Other questions:
  • The ratio of red cars to blue cars in a parking lot was 5:3. If there were 40 red <br> cars
    12·1 answer
  • What is the value of the function at x = 3?
    10·1 answer
  • Keith traveled to Greensboro by
    9·1 answer
  • Given f(x) = –5x + 1, what is f(–2)?
    12·1 answer
  • How to write 30+54 in distributive property in an easy way
    12·1 answer
  • What is the solution to the system of linear equations represented by the matrix below?
    7·2 answers
  • I don't understand how to do this.​
    8·1 answer
  • What are exponents?<br> they are very hard for me
    10·1 answer
  • Help me guys :(<br>i need your help, please....!!!?​
    14·1 answer
  • I have a math problem.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!