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andrey2020 [161]
3 years ago
10

this question is pretty easy i just dont understand, so if you could answer asap that would really help :)

Mathematics
1 answer:
alexdok [17]3 years ago
6 0
The second choice should be correct

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Which of the following trinomials can be factored using the square of the difference?
ArbitrLikvidat [17]

Answer:

  d) 16x² -56x +49

Step-by-step explanation:

The square of a binomial difference will have the form ...

  (ax -b)² = a²x² -2abx +b²

__

The sign of the linear term will be negative, which eliminates choices A and C.

The linear term will be double the product of the roots of the other two terms.

In choice B, the linear term has a factor of 5 that appears nowhere else, so that cannot be a perfect square.

Choice D factors as ...

  16x² -56x +49 = (4x -7)² . . . . the square of a difference

8 0
3 years ago
Please help will give Brianliest!!!
marshall27 [118]

Answer: y=2(x-3)-5

I hope this is good enough:

8 0
3 years ago
1. What is the value of the expression 3^-4?. a) -81. b) -12. c) -1/81. d) 1/81. 2. What is the value of the expression 1/4^3?.
hjlf

Answer:

1.

Option d is correct

2.

Option c is correct

3.

Option a is correct

4.

Option d is correct

5.

Option c is correct

Explanation:

Using exponent rule:

a^{-n} = \frac{1}{a^n}

1.

Given the expression:  

3^{-4}

Apply the exponent rules:

\frac{1}{3^4} = \frac{1}{81}

Therefore,  the value of the given expression is, \frac{1}{81}.

2.

To find the value of the expression \frac{1}{4^3}

then;

\frac{1}{4^3} = \frac{1}{64}

Therefore, the value of the given expression is, \frac{1}{64}.

3.

Find the the value of the expression \frac{2}{4^3}

then;

\frac{2}{4^3} = \frac{2}{64}

Simplify:

\frac{1}{32}

Therefore, the value of the given expression is, \frac{1}{32}.

4.

Given the expression:

K^{-3} = \frac{1}{27}

we can write this as:

K^{-3} = \frac{1}{3^3}

Apply the exponent rules:

K^{-3} = 3^{-3}

On comparing both sides we have;

K = 3

Therefore, the value of K is, 3

5.

Given the expression:

3^N= \frac{1}{81}

we can write this as:

3^N= \frac{1}{3^4}

Apply the exponent rules:

3^N = 3^{-4}

On comparing both sides we have;

N = 4

Therefore, the value of N is, -4

3 0
4 years ago
Read 2 more answers
A problem states: "There are 7 more girls than boys in a club. There are 23 members in the club in all. How many girls are there
Lady bird [3.3K]

The expression g - 7 is the answer.

Because there are 7 more girls than boys, b = g - 7.

4 0
4 years ago
Read 2 more answers
1. y = -3x + 9<br> Find the slope and y-intercept on the graph of the linear equation.
HACTEHA [7]

Answer:

-3 = slope 9= y-intercept

5 0
3 years ago
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