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sasho [114]
3 years ago
14

Please help algebra 2!!

Mathematics
1 answer:
RUDIKE [14]3 years ago
7 0
Let u = x^2

u^2 + 12u - 64

(u - 4)(u + 16)

Back-substitute for u.

(x^2 - 4)(x^2 + 16)

(x + 2)(x - 2)(x + 4i)(x - 4i)

Answer: Choice a.
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Write an equation of the line passing through point P(−2, 6) that is parallel to the line x=−5.
andriy [413]

Answer:

x = -2

Step-by-step explanation:

The line x = - 5 means it is a straight vertical line that has no slope. This means that the slope is undefined.

Now, for this line to be parallel to the line passing through point P(−2, 6), it means the line will be a vertical line too with the equation of form (x = a).

Thus, the equation of the line is x = -2

7 0
3 years ago
A box contains four cards: One card is black on both sides, one card is red on both sides and two cards are black on one side an
allochka39001 [22]

Answer:

Step-by-step explanation:

A box contains four cards: One card is black on both sides, one card is red on both sides and two cards are black on one side and red on the other side. One card is selected at random and you can see only one side.i) If the side you see is black, what is the probability that the other side is black?ii) If the side you see is black, what is the probability that the other side is red?

Given that:

Number of cards = 4

x = Black on both sides = 1

y = Red on both sides = 1

z = Black on one side, red on one side = 2

.i) If the side you see is black, what is the probability that the other side is black = b

Probability of black

P(x) = 1/4 ; p(b|x) = 1

P(y) = 1/4 ; p(y|x) =

8 0
2 years ago
Brienne and 3 friends bought tickets to the movies. They spent a total of $27.00 on the tickets. Which equation represents this
Sindrei [870]
Hello!

The equation that represents this situation is A. 3t = 27.

Explanation:

This is because an equation is a "mathematical sentence" and this equation says that if you multiply the costs of the three friends' tickets, the total cost would be $27.
5 0
3 years ago
Rewrite each of the following durations using eighth notes. Write in words and as a fraction: 1 quarter note 1 half note 1 full
LenKa [72]

Answer: one third. one half and 1 whole

Step-by-step explanation:

4 0
3 years ago
The radius of a circle is 13 in. Find its area in terms of pi​
grigory [225]

Answer:

A≈530.93in²

Step-by-step explanation:

4 0
3 years ago
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