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
solong [7]
3 years ago
6

I need question a and b done pls help

Mathematics
2 answers:
FrozenT [24]3 years ago
8 0

Answer:

A. 5

B. 12

Step-by-step explanation:

What you do is you substitute -2 into the a and the 3 into the b.

a. 3(-2)^2-5(3)+8                       b. 2/3(3)-5(-2)

3(4)-15+8                                   2-(-10)

12-15+8                                      12 is your answer.

-3+8

5 is your answer.

CaHeK987 [17]3 years ago
4 0

For (a)

3a^2 - 5b + 8

Let a be -2 and b be 3.

3(-2)^2 - 5(3) + 8

3(4) - 15 + 8

12 - 15 + 8

-3 + 8

Answer: 5

For (b)

Let a be -2

Let b be 3

(2/3)b - 5a

(2/3)(3) - 5(-2)

2 + 10

Answer: 12

Did you follow?

You might be interested in
In Euclidean geometry, the sum of the measures of the interior angles of a pentagon is 540°. Predict how the sum of the measures
Blizzard [7]
In Euclidean geometry, the sum of the measures of the interior anlges of a pentagon is 540°. 

The sum of the measures of the interior angles of a pentagon would be different in spherical geometry because A.) THE SUM WOULD BE GREATER THAN 540°
6 0
3 years ago
Which of these is equal to 0.13?<br> 13<br> A.<br> 99<br> 12<br> B.<br> 90<br> c. 1
Norma-Jean [14]

Answer:

Is this the inter question

3 0
3 years ago
Help me with B please
salantis [7]
Area of each piece of paper is 8\frac{1}{2}\times11=\frac{17}{2}\times11=\frac{187}{2}

Greatest number of possible piece of paper is [1000\div\frac{187}{2}]=[1000\times\frac{2}{187}]=[\frac{2000}{187}]=10
4 0
3 years ago
Assign two variables for each problem, and write the equations. Do not solve.
NemiM [27]
Price of boots is represented as x, price of tennis shoes is represented as y. x-y=44.38 x+y=196.12 Isolate x. (Or y, if you wanted to) x=y+44.38 x=196.12-y Set them equal to each other. y+44.38=196.12-y Solve for y. Then plug it in to either of the two original equations to find x. x=120.24 y=75.86 Note: This is assuming that the boots are more expensive than the tennis shoes. If the tennis shoes are more expensive than the boots, then the prices would be switched. I didn't find this clear in your question.
6 0
3 years ago
Will mark brainlist + 30 points .. please help asap!!
zheka24 [161]

Answer:

is 20 is your answer I believe

8 0
3 years ago
Read 2 more answers
Other questions:
  • If EG=50,and point F is 2/5 of the way between E and G
    14·1 answer
  • Please help ...........,,,,
    15·1 answer
  • Which expression has the same sum as the one below?
    14·2 answers
  • G(x) = 2x^2 and h(x) = .What is (g h)-1 and is it a function?
    6·2 answers
  • Can someone help me with this? please​
    7·1 answer
  • To use a t procedure, which of the following must be true?
    7·1 answer
  • Fifty people were surveyed about their favorite pizza topping. The results of the survey are displayed in the circle graph. How
    6·1 answer
  • Question 3
    13·1 answer
  • Please help me 30 points please help me
    8·1 answer
  • 5+8-2x2 find all the possibilities for each problem by placing parenthesis in different places
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!