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Alex73 [517]
3 years ago
11

The vertex of a parabola that opens downward is at (0, 4). The vertex of a second parabola is at (0, –4). If the parabolas inter

sect at two points, which statement must be true?
Mathematics
2 answers:
dmitriy555 [2]3 years ago
5 0

Answer:

d. just got it right on the unit testttttt

Step-by-step explanation:

erma4kov [3.2K]3 years ago
4 0
Many statements can be true about those parabolas, so you need to include the list of choices.

This is the list of answer choices that I found for this same question:

<span>A. The second parabola opens downward.
B. The second parabola opens upward.
C. The points of intersection are on the x-axis.
D. The points of intersection are of equal distance from the y-axis.

While A, B or C may be or may not be true, D has to be true.

D. has to be true because the symetry axis of both parabolas is x = 0, so the intersection points will  be necesarily to the same distance of the x-axis and the y-axis.

Answer: </span>
<span>The points of intersection are of equal distance from the y-axis. </span>
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I need help please with this question
Shtirlitz [24]
The answer will be B.exponential 
3 0
3 years ago
(16x-1) (20x+10)<br> What is X?
KatRina [158]

Answer:

320x^2+140x-10

Step-by-step explanation:

(16x-1)(20x+10)

320x^2+160x-20x-10

320x^2+140x-10

8 0
3 years ago
GIVING BRAINIEST IF CORRECT!!<br><br> Factor x^4 - 16 completely
ioda

Answer:

(x^2 + 4)(x + 2)(x - 2)

Step-by-step explanation:

Hello!

We can use the difference of square method.

<h2>Difference Of Squares (DOS)</h2>

The formula for the DOS is (a + b)(a - b) = a^2 - b^2

It is a simple way to factor polynomials.

The criteria:

  • Has to begin and end with a perfect square
  • The operation has to be subtraction

<h3>Factor:</h3>
  • x^4 - 16

Begins with a perfect square (x² * x²) and ends with a perfect square (4 * 4)

  • (x^2 + 4)(x^2 - 4)

Warning! Watch out, there may be another DOS!

x^2 - 4 is another DOS

  • (x^2 + 4)(x + 2)(x - 2)

The x² + 4 is not a DOS because the operation is addition.

The final factored form is (x^2 + 4)(x + 2)(x - 2)

8 0
2 years ago
Arithmetic mean between -2 and 58
lions [1.4K]

Answer:

I think its true

Step-by-step explanation:

8 0
3 years ago
Y = 2x + 3 find f(0)
vichka [17]

If y=2x+1 then that means f(x)=2x+3 and when you plug in x=0 you get f(0)=2\cdot0+3=\boxed{3}.

Hope this helps :)

5 0
3 years ago
Read 2 more answers
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