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
Determine ſ(2) where f(x) =x+1/4x-2
umka2103 [35]
F(X)= x+1/4x-2
f(2) = (2 + 1)/[(4)(2) - 2]
f(2) = 3/6 = 1/2
6 0
3 years ago
Ashton needs $120 but has only saved 60% so far. How much more money does he need
Kamila [148]

Hello there! Ashton needs 48 more dollars.

Well, to start, you want to find 60% of 120. To do this, you first have to convert 60% into a decimal by dividing it by 100.

60/100 = 0.6

Next, multiply 0.6 by your total needed, 120, to finish finding 60% of 120.

120 x 0.6 = 72.

So he already has 72 dollars, but how many more does he need? You can find this by subtracting 72 from 120.

120 - 72 = 48.

So, this means he needs 48 more dollars. I hope this helps and have a great rest of your day! Please let me know if you need further help with this question. :)

3 0
3 years ago
the volume of a rectangular prism can be found by the formula v = lwh where v is the volume, l is length, w is width and h is he
KonstantinChe [14]
V = lwh
48 = 8 x 2 x h = 16h
h = 48/16 = 3

height = 3 inches.
5 0
3 years ago
Will Mark Brainliest!!! Put these in order from LEAST TO GREATEST Pls.
Andru [333]

Answer:

5/4,2.5,3.7,4.75,5.5,6,28,29

Step-by-step explanation:

6 0
3 years ago
HI PLEASE ANSWER THIS QUESTION THANK YOU SO MUCH!
krek1111 [17]

1.  m³

2. cm³

3. s³

<h3>What is Unit?</h3>

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.

1. Volume is measure in m³

2.  volume of a rectangular pencil case in cm³

3. V = s x s x s or s³

Learn more about volume here:

brainly.com/question/1324203

#SPJ1

3 0
1 year ago
Other questions:
  • Evaluate if x = 1 , y = 3 , and z = 5<br><br> |5z - 2y|
    5·1 answer
  • Can you give me an equation that equals to 31
    15·2 answers
  • Find the perimeter of a parallelogram with one side that measures 39.7 cm and another that is 13 cm
    7·1 answer
  • Maya is choosing between several pay plans for her new job. If she usually has monthly sales of about $5,000, which plan would a
    6·2 answers
  • Using the table, what is the relative frequency of the blue beads?
    10·1 answer
  • Solve for the value of x.
    8·1 answer
  • Pls pls Pls pls Pls Pls help me pls pls pls pls pls pls ASAP pls pls pls Pls pls Pls pls Pls Pls help me pls pls pls pls pls pls
    11·1 answer
  • A basketball drops from a hieght of 76 in. On bounce 1, it rebounds to a hieght of 38 in. On bounce 2, it rebounds to a hieght o
    11·2 answers
  • 40 POINTS PLS HELP!!!! C and B
    7·2 answers
  • Elena made $1,350 in 18 days. Let c represent the amount of money she made each day. If Elena made the amount of money each day,
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!