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
Klio2033 [76]
3 years ago
15

): If (6x-3)(6x+3)=ax^2-b, what is the value of a? What is the value of b?

Mathematics
1 answer:
lesantik [10]3 years ago
7 0
Answer: a = 36 and b = 9

Explanation:

(6x-3)(6x+3)

= 36x² - 18x - 18x - 9

= 36x² - 9



(6x-3)(6x+3) = ax² - b

36x² - 9 = ax² - b

a = 36 and b = 9

Hope it helps!
You might be interested in
Simplify the expression below you must show all work to receive full credit
Marrrta [24]

Answer:

8w^2 I don't know why it is not on here, but I put it in an algebra calculator and everything. Good luck. :)

Step-by-step explanation:

Simply the radicals by multiplying and taking square roots.

2\sqrt[4]{8w^3} * \sqrt[4]{32w^5}

= 2\sqrt[4]{8w^3} *2w\sqrt[4]{2w}

= 4w\sqrt[4]{16w^4}

=4w(2w)

=8w^{2}

7 0
3 years ago
Read 2 more answers
Some of the students three scores is 231. If the first is 20 points more than the second, and the sum of the first two is 6 more
Aleks [24]

Answer:

The first score is 109

Step-by-step explanation:

I am assuming that in the first sentence of the question, you meant:

Sum of the students three scores is 231...

First, let the scores of the first second and third student be a, b and c respectively. We are told that:

a + b + c = 231 . . . . . . . .(1)         (sum of students three scores is 231)

a = b + 20 . . . . . . . . . . . (2)        (the first is 20 points more than the second)

a + b = 6c . . . . . . . . . . . .(3)        (sum of the first two is 6 more times the third)

required, find a.

substituting the value of (a + b) in equation (3) into equation (1), we will have the following:

since a + b = 6c . . . (3)

a + b + c = 231 . . . . . (1), becomes,

(a + b) + c = 231

(6c)  + c = 231

7c = 231 (divide both sides by 7)

c = 231 ÷ 7 = 33

∴ c = 33

Next, from equation (2), we know that a = b + 20; this can also be written as:

a - 20 = b

∴ b = a - 20 . . . . . . . (4)

Finally, putting the value of b in equation (4) and the value of c calculated above into equation 1, ( a + b + c = 231), we have the following:

a + (a - 20) + 33 = 231

(a + a) - 20 + 33 = 231

2a + 13 = 231

2a = 231 - 13 = 218

a = 218 ÷ 2 = 109

∴ a = 109

we can also calculate for 'b' by substituting for the value of 'a' in equation 4

b = a - 20 = 109 - 20 = 89.

and to test if the values of a, b and c are correct:

a + b + c = 231

109 + 89 + 33 = 231

4 0
3 years ago
What is 1+1? lol i know it’s 2
bogdanovich [222]
Lol I'll just comment to get 5 points
7 0
3 years ago
A system whose graphs have the same slope but different y- intercepts
almond37 [142]
X intersept form........
8 0
3 years ago
Help pls!!
nexus9112 [7]

Answer: Choice D

Explanation:

The range is the set of all possible y outputs of a function. The highest y can go is y = 1, which occurs at the vertex. We can have y = 1 or y be smaller than this. Therefore, the range is y \le 1

7 0
2 years ago
Other questions:
  • Which expression is equivalent to −15x + 6
    11·1 answer
  • Write an equation of a 66 foot square
    14·1 answer
  • Which value is equivalent to 5 × 10 to the 4th power
    8·2 answers
  • Is 4.78778777... a rational or irrational​ number?
    15·1 answer
  • Which is the graph 3x + 5y=-15
    12·1 answer
  • A conveyor belt moves at a constant rate of 12 feet in 3 seconds. A second conveyor belt moves at a constant rate of 21 in 7 sec
    15·1 answer
  • 18x + 24 = 12x +14. Find the value of (x)​
    10·2 answers
  • Solve the right triangle below. Round all your answers to the nearest tenth. Measure of angle X = ______
    10·1 answer
  • PLEASE HELPPPP :(((((((((((​
    10·2 answers
  • Martina begins a dive at sea level. She dives down 20 feet, and then rises 7 feet.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!