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2 years ago

Which equation has roots of 13 and -3

1 answer:

3 0

To get roots of 13 and -3 the simplified equation will have to look like this.
(X-13)(X+3)=0
So if we multiply this out with foil method we get this:

X^2 -10X -39

So the answer is A

You might be interested in

Which of the following inequalities have no solution over all real numbers? Check all that apply.

Likurg_2 [28]

Answer:

cos(x)<-2

-1<csc(x)<1

cos(x)-1>.5

Step-by-step explanation:

I just answered this question and got these answers.

7 0

4 years ago

Josh works as a tutor for 11$ an hour and a waiter for 15$ an hour. This month he worked 106 hours. What expression solves this?

coldgirl [10]

Answer: -4t + 1590

Step-by-step explanation:

Given : Josh works as a tutor for $11 an hour and as a waiter for $15 an hour.

This month, he worked a combined total of 106 hours at his two jobs.

Let t be the number of hours Josh worked as a tutor this month.

Then, the number of hours Josh worked as a waiter = 106 -t

Then, the total money earned this month ( in dollars)

= 11 (No. of hours worked as a tutor)+ 15 (No. of hours worked as a waiter)

=11(t) + 15(106-t)

= 11t+1590-15t

= -4t+1590

Hence, the expression for the combined total dollar amount he earned this month =

5 0

3 years ago

Azim wants to buy a tablet computer that is priced at $255 25. If the sales tax rate on the computer is 8%, how many dollars and

natima [27]

8% of $255.25 is $20.42

8 0

3 years ago

For the data below, which of the following are true? Choose all that apply.

masha68 [24]

Answer:

Range 40

Mean 99.4

Step-by-step explanation:

There is a mode since the number 104 shows up twice.

The median is not 100 because it is 102.

The range is 40 because 120 is the largest number and 80 is the smallest number.

So 120 - 80 = 40

The mean is 99.4 because when you add all the numbers up and then divide it by 10 you get 99.4

5 0

4 years ago

Find the perimeter. (attachment included)

Tresset [83]

Answer:

5 + 2 $\sqrt{11}$

Step-by-step explanation:

5 + $\sqrt{11}$ - $\sqrt{5}$ + $\sqrt{11}$ + $\sqrt{5}$

5 + 2 $\sqrt{11}$ - $\sqrt{5}$ + $\sqrt{5}$

5 + 2 $\sqrt{11}$

6 0

4 years ago