All categories

2 years ago

Which value of a would make the following expression completely factored

Mathematics

2 answers:

solmaris [256]2 years ago

6 0

Answer:

Step-by-step explanation:

We know that the expression (x^2 - a^2) can be written as (x-a)(x+a). So an expression of this type: (x^2 - a^2) wouldn't be completely factored because it could be factorized even more.

So we know that 36 = 6^2, 49= 7^2 and 81 = 9^2. So if we choose any of these options (Option B, C and D) it wouldn't be completely factored.

The correct is the option A, given that if a=12, it wouldn't be a perfect square, so it would be completely factored.

Bogdan [553]2 years ago

6 0

So I just did the problem and im pretty sure the answer is A

You might be interested in

If you are driving at a constant speed of 96 kilometers per hour, how long will it take you to travel 288 kiloneters?

larisa86 [58]

Answer:

3 hours

Step-by-step explanation:

288 ÷ 96 km/h = 3 hours

as time = distance ÷ speed

6 0

2 years ago

Read 2 more answers

Jamal is helping pack prize bags for the school carnival. He has 73 pencils to put into 16 bags. He wants to put the same number

valentina_108 [34]

Answer:

Step-by-step explanation:

I73/16 = 4.52

If he wants to put the same number in each bag, he would put 4 in each bag because the pencils cannot be cut into 0.52

3 0

2 years ago

What are the focus and directrix of the parabola with the equation y = 1/2 x2

VMariaS [17]

Answer:

1/9

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Please select the best answer from the choices provided

Ira Lisetskai [31]

<u>Answer:</u>

The correct answer option is c. $\frac{1}{9a^2}$ .

<u>Step-by-step explanation:</u>

We are given an expression $(27a^{-3})^{-\frac{2}{3} }$ and we are supposed to simplify it.

We can also write $(27a^{-3})^{-\frac{2}{3} }$ as $(\frac{3^3}{a^3} )^{-\frac{2}{3} }$ .

We know the power rule (a^m)^n=a^{mn} which means that to raise a power to a power you need to multiply the exponents.

So multiplying the exponents to get:

$\frac{3^{(3.-\frac{2}{3})} }{a^{(3.\frac{2}{3})} }\\\\\frac{3^{-2}}{a^2}\\ \\\frac{1}{3^2a^2} \\\\\frac{1}{9a^2}$

Therefore, the correct answer option is c. $\frac{1}{9a^2}$ .

4 0

2 years ago

The total number of items sold by each student who participated in the fundraiser is showing in the stem and leaf plot

kenny6666 [7]

The statement that is best supported by the data in the stem and leaf plot is D. The most common number of items sold is 15.

<h3>How to illustrate the information?</h3>

It should be noted that the stem and plot diagram is important to illustrate the data given.

Based on the information given, the most common number of items sold is 15.

In conclusion, the correct option is D.

Learn more about stem plot on:

brainly.com/question/23450543

#SPJ1

The total number of items sold by each student who participated in a fund-raiser is shown in the stem and leaf plot.

Which statement is best supported by the data in the stem and leaf plot?

The number of students who sold between 10 and 20 items is greater than the number of students who sold more then 40 items.

The number of students who sold more than 30 items is greater than the number of students who sold fewer than 30 items.

The most common number of items sold is 30.

The most common number of items sold is 15.

4 0

1 year ago