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
natali 33 [55]
3 years ago
7

Evaluate 4(a^2 + 2b) - 2b when a = 2 and b = –2.

Mathematics
2 answers:
Rama09 [41]3 years ago
7 0

Answer:

4

Step-by-step explanation:

4(4-4)+4=4

insert 2 in a and-2 in b

antoniya [11.8K]3 years ago
3 0

Answer:

4

Step-by-step explanation:

4(2^2 + (2 * -2)) - (2 * -2)

2^2 = 4

4(4 + (2 * -2)) - (2 * -2)

2 * -2 = -4

4(4 + -4) - -4

- -4 = + 4

+-4 = -4

4(4 -4) + 4

4 - 4 = 0

4(0) + 4

4 * 0 = 0

0 + 4

0 + 4 = 4

4

You might be interested in
Solve for x. Express the answer in simplest form. <br>2/1 = 8x - 2/ 9
oksano4ka [1.4K]
2=8x-2/9
add 2/9 to both sides
2 and 2/9=8x
2=18/9
2 and 2/9=18/9+2/9=20/9
20/9=8x
multiply both sides by 9
20=72x
divide boht isdes by 72
20/72=x=5/18
4 0
3 years ago
Write your answer as a fraction or as a whole mixed number. 2 5/11 - 10 7/11
kaheart [24]

Answer:

-90/11

Step-by-step explanation:

convert each mixed number into a improper fraction

27/11  - 117/11

= -90/11

3 0
3 years ago
Read 2 more answers
Which equation can be used to find the perimeter of a regular pentagon with sides of length 15 inches?
tresset_1 [31]
The perimeter means the sum of all sides.
So, In pentagon, it would be: 5(15)   [ With five sides ]

In short, Your Answer would be Option C

Hope this helps!
3 0
3 years ago
Read 2 more answers
One solution to the problem below is 4.<br> What is the other solution?<br> y² - 16 = 0
ratelena [41]

Answer:

The 2 answers are 4 and -4

Step-by-step explanation:

8 0
3 years ago
The volume V of a sphere with radius R is given by formula V=4/3 x 3.14 x r^3
Olin [163]
36(3.14) = 4/3 x 3.14 x r^3
113.04 = 4.187(r^3)
113.04/4.187 = r^3
26.997 = r^3
3√26.997 = r
r = ~3

Check: 3^3(\pi)(4/3) = 27(3.14)(4/3) = 113.04
5 0
3 years ago
Other questions:
  • Please help! I’m stuck on this question. I’m very confused.
    6·1 answer
  • What multiplies into -24 and adds into 2
    5·1 answer
  • You are saving money for a camp that costs $1,800. You already saved $500. You have 14 more weeks to save money . Write an inequ
    13·1 answer
  • On a coordinate plane the vertices of a rectangle are (2,4), (2-1),(-5,-1),and (-5,4).what is the perimeter of the rectangle?
    10·1 answer
  • Please Help ASAP <br> Select the true statement regarding the end behavior of the functions.
    9·2 answers
  • Solve using the unit rate problems find the constant speed 1,200 feet in 48 seconds
    11·2 answers
  • Simplify the equation <img src="https://tex.z-dn.net/?f=%5Csqrt%7B245c%5E3%7D" id="TexFormula1" title="\sqrt{245c^3}" alt="\sqrt
    5·2 answers
  • Lauren is going to invest in an account paying an interest rate of 3.4%
    11·1 answer
  • A gumball machine has 130 red gumballs. If the red gumballs are 25% of the total number of gumballs, how many gumballs are in th
    6·2 answers
  • Which graph represents (y-3)^2/25 + (x+1)^2/4 &gt; 1 and y &lt;= square root{x+5}+2
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!