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
erastovalidia [21]
3 years ago
6

Find the values for a and b that would make the equality true.

Mathematics
1 answer:
Crank3 years ago
6 0

Answer:

a = - 4, b = 5

Step-by-step explanation:

Expand the left side and compare the coefficients of like terms on the right side.

- 3(2x² + ax + b)

= - 6x² - 3ax - 3b

Comparing like terms with - 6x² + 12x - 15

x - term → - 3a = 12 ( divide both sides by - 3 )

                    a = - 4

constant term → - 3b = - 15 ( divide both sides by - 3 )

                               b = 5

You might be interested in
If anyone could please help me with this question???I know that you can get three triangles out of the shape.
dem82 [27]

Answer:

See below.

Step-by-step explanation:

The triangles are similar because  the angles marked 125 are equal and the sides either side of these angle are in the same ratio:

1.3 / 2.5 = 2.6 /5.

If we are given the length of AE we would find CF from the equation:

1.3 / 2.5 = CF / AE

CF = (1.3 * AE) / 2.5.

8 0
3 years ago
Please help,I don’t get this and my friends also need your help
ira [324]
STEP 1:
Add the number of total students
= 27+25+23
=75


STEP 2:
Find the percentage that 18 out of 75 students is.

18/75=x/100

cross multiply
(18*100)=(75*x)

1800=75x
divide both sides by 75
24%=x

Check:
75 * 24%= 18

Hope this helps! :) Good luck!
8 0
3 years ago
Which is o 54 converted to a simplified fraction​
umka2103 [35]
The fraction for 54 is 270/5
3 0
3 years ago
Find the intercepts and graph the equation x +5y =20
N76 [4]

Answer:

y-intercept: (0, 4)

x-intercept: (20, 0)

Step-by-step explanation:

y-intercept: The y-intercept of a graph is the point where the graph crosses the y -axis. That means, the point in which x = 0.

To find it, we can substitute x by 0 and find y.

x + 5y = 20

0 + 5y = 20

5y = 20

y = 20/5

y = 4

y-intercept: (0, 4)

x-intercept: The x-intercept of a graph is the point where the graph crosses the x-axis. That means the point in which y = 0.

To find it, we can substitute y by 0 and find x.

x + 5y = 20

x + 5*0 = 20

x = 20

x-intercept: (20, 0)

Finally, the graph of the equation is:

3 0
1 year ago
The dimensions of a box are (x + 2), (2x - 1) and (3x + 1). What is the volume of the box?
brilliants [131]
The correct answer is (2).
5 0
3 years ago
Other questions:
  • Question 12 Suppose 4.2 liters of water come out of a faucet each minute. For how many minutes was the faucet on if 52.5 liters
    15·1 answer
  • Whats the value of 2 in the numbers 0.025
    9·1 answer
  • Use long division to find 5210 divided by 46
    7·1 answer
  • You measure the width of your door to be 36 inches . The truth width of the door is 35.75 inches what is the relative error in y
    15·2 answers
  • Mr and Mrs Kosley took their dog on a walk. Mr Kosley walks 5mph and Mrs Kosley walks 6mph. The dog walks 10mph. On the path, th
    12·1 answer
  • HELP PLZ GUYS I BEG YOU 15 PTS ITS EASYYYYYYY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    12·1 answer
  • Please help me with this!!!
    5·1 answer
  • Please answer this!!! thanks
    13·2 answers
  • HELP ASAP WILL MARK BRAINKLY AND THANK ON ALL ANSWERS IF CORRECT DUE IN 20 MIN
    12·1 answer
  • Help me out True or false questions
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!