Statements on perpendicular lines

den301095 [7]

Answer:

Step-by-step explanation:

The best way to do this is to first remove the parenthesis by distributing the negative into them. Then we will group the like terms together, moving their respective signs with them, then we will simplify. For the first one, after distributing the negative into the parenthesis (remember that a negative in front of a set of parenthesis containing a polynomial changes the signs in front of each term within the polynomial; negatives become positives and positives become negatives):

$3x^2-6x+11-10x^2+4x-6$ and then grouping like terms next to each other:

$3x^2-10x^2-6x+4x+11-6$ (this step is not completely necessary; I just encourage new learners to do it so as to not miss any of the like terms)

The above then simplifies to

$-7x^2-2x+5$

The next one, after distributing the negative into the parenthesis:

$-3x^2-5x-3+10x^2+7x-2$ and then grouping like terms next to each other (remember to move their signs with them!):

$-3x^2+10x^2-5x+7x-3-2$ which simplifies to

$7x^2+2x-5$

Now for the last one:

$12x^2+6x-5-5x^2-8x+12$ and

$12x^2-5x^2+6x-8x-5+12$ which simplifies to

$7x^2-2x+7$

6 0

2 years ago

5x^2-23x+12<br>this is the question im stuck on

AURORKA [14]

Rewrite it as 5x^2 -20x-3x+12
then (5x^2 -20x)(-3x+12)
then use gcf and u will get the answer in a binomial form

8 0

2 years ago

What is the number 56, 893, 000 in word form

Finger [1]

Fifty six million eight hundred ninety three thousand

7 0

3 years ago

If a car can go 300 miles on 12 gallons, how far can it go on 1 gallon

insens350 [35]

Answer:

The car can go 25 miles on 1 gallon.

Step-by-step explanation:

300 divided by 12 equals 25. Therefore, the car can go 25 miles on 1 gallon.

8 0

2 years ago

Read 2 more answers

Please help me out :P

Veseljchak [2.6K]

cos θ = $\frac{-4\sqrt{65} }{65}$ , sin θ = $\frac{-7\sqrt{65} }{65}$ , cot θ = 4/7, sec θ = $\frac{-\sqrt{65} }{4}$ , cosec θ = $\frac{-\sqrt{65} }{7}$