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Mashutka [201]
3 years ago
12

Which ordered pair in the form (a, b) is a solution of this equation?

Mathematics
1 answer:
Evgen [1.6K]3 years ago
5 0

3a - 4b = 21


check (-2 , -3)


3(-2) -4(-3) =21


-6 +12  = 21


6 does not = 21  so NO


check (0 , 7)


3(0) -4(7) =21


0-28=21


-28 does not equal 21  so NO


check (-3 , -2)


3(-3) -4(-2) =21


-9 +8  = 21


1 does not = 21  so NO


check (7 , 0)


3(7) -4(0) =21


21  = 21

Choice D

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Aliun [14]

Answer:

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3 0
3 years ago
5. What is the multiple zero and multiplicity of f(x) = (x + 4)(x - 2)(x + 4)(x + 4)?
natali 33 [55]

The zeros of this functions are -4, 2, -4, and -4.

-4 is a multiple zero and has multiplicity 3.

2 is a zero.  I would call it a simple zero, since it's only a zero once (AKA has multiplicity of 1).

Is this a "pick one answer" or "pick all correct answers"?

3 0
2 years ago
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Mrrafil [7]
Fue answer is poseitive3
8 0
3 years ago
Read 2 more answers
Twice the sum of x and 6 is at most 52. What is the greatest value of x that satisfies the inequality that represents this situa
Shalnov [3]
Our inequality looks like this:
2(x+6)≤52
Using the Distributive Property, we have
2*x + 2*6 ≤52
2x+12≤52
Cancel the 12 by subtracting from both sides:
2x+12-12≤52-12
2x≤40
Divide both sides by 2:
2x/2 ≤ 40/2
x≤20
x cannot be any more than 20 to satisfy this inequality.
6 0
3 years ago
Read 2 more answers
I have homework for tomorrow can someone help
Tema [17]

Answer:

x = 42 degrees.

Step-by-step explanation:

We see a cyclic quadrilateral, so by the cyclic quadrilateral theorem we notice that the angle marked with x degrees is equal to the angle marked with 42 degrees. Hence, x = 42 degrees.

3 0
2 years ago
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