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gogolik [260]
4 years ago
8

When asked to factor the trinomial x^2-16x+64, a student gives the answer (x – 8)(x + 8). Which of the following statements is t

rue?
A. The answer is correct.
B. The answer is incorrect; the trinomial cannot be factored.
C. The answer is incorrect; the minus sign should be a plus sign.
D. The answer is incorrect; the plus sign should be a minus sign.
Mathematics
2 answers:
blagie [28]4 years ago
6 0

Answer:

The previous person is correct. he plus sign should be a minus sign.

Step-by-step explanation:

Murrr4er [49]4 years ago
3 0

Answer:

The answer is incorrect; the plus sign should be a minus sign (apex)

Step-by-step explanation:

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Suppose you choose a team of two people from a group of n > 1 people, and your opponent does the same (your choices are allow
jonny [76]

Answer:

The number of possible choices of my team and the opponents team is

 \left\begin{array}{ccc}n-1\\E\\n=1\end{array}\right     i^{3}

Step-by-step explanation:

selecting the first team from n people we have \left(\begin{array}{ccc}n\\1\\\end{array}\right)  = n possibility and choosing second team from the rest of n-1 people we have \left(\begin{array}{ccc}n-1\\1\\\end{array}\right) = n-1

As { A, B} = {B , A}

Therefore, the total possibility is \frac{n(n-1)}{2}

Since our choices are allowed to overlap, the second team is \frac{n(n-1)}{2}

Possibility of choosing both teams will be

\frac{n(n-1)}{2}  *  \frac{n(n-1)}{2}  \\\\= [\frac{n(n-1)}{2}] ^{2}

We now have the formula

1³ + 2³ + ........... + n³ =[\frac{n(n+1)}{2}] ^{2}

1³ + 2³ + ............ + (n-1)³ = [x^{2} \frac{n(n-1)}{2}] ^{2}

=\left[\begin{array}{ccc}n-1\\E\\i=1\end{array}\right] =   [\frac{n(n-1)}{2}]^{3}

4 0
4 years ago
A triangle has legs that are 7in and 24in long. How long is the hypothenuse?
SashulF [63]

Answer: 25 in

Step-by-step explanation:

<u>Due to the use of the term "hypotenuse" I will assume the triangle is a right triangle.</u>

<u></u>

According to pythagorean theorem, 7²+24²=(hypotenuse)²

49+24²= (hypotenuse)²

49+576= (hypotenuse)²

625 = (hypotenuse)²

25 = hypotenuse

Hope it helps <3 :D

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3 years ago
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Alexxx [7]

Answer: 42 more sales in December

8 0
3 years ago
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Molodets [167]
To find the exterior angle measure we would use the following formula: 
\frac{360~degrees }{number ~of ~sides}
A regular hexagon has 6 sides so we divide: 
360/6 which equals 60 
So our final answer would be A. 60 
5 0
3 years ago
Why is it preferable to measure a penny in millimeters?
White raven [17]
When measuring a penny, using the millimeter measurement would be more accurate then using inches or centimeters.
5 0
3 years ago
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