All categories

3 years ago

Which of the following is algebraically equivalent to the sum of 4x^2 -8x +7 And 3x^2-2x-5

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

5 0

All you have to do, is combine like terms. Let's go through it:

$(4x^2-8x+7)+(3x^2-2x-5)$

Arrange it so you can easily combine like terms:

$4x^2+3x^2-8x-2x+7-5 = 7x^2-10x+2$

So, your answer for the sum is 1) 7x² - 10x + 2

You might be interested in

Graphing a line given it’s equation in standard form

S_A_V [24]

You'd first change the equation to slope-intercept form.

For example:

-2x + y = 6

You'd add 2x to both sides -

-2x + y + 2x = 6 + 2x

y = 2x + 6

So you'd graph y = 2x + 6

___

Hope this helped!

4 0

3 years ago

Find (f of f)(0) neeeed help ?

polet [3.4K]

So do you need help or are you asking people if they need help?

7 0

3 years ago

Find the missing length the triangles are similar.

ch4aika [34]

Answer:

Step-by-step explanation:

The missing length is 13 because,

Lets say the top triangle is A and the bottom triangle is B.

Triangle A gives us the side GF, and Triangle B gives us the sides TU and ST. Since the triangles are similar(as stated in the problem), we can pair 2 sides GF(A) and TU(B) which is 11:22.(one way I usually figure which sides are similar is by first- matching the hypotenuse, then checking which of the remaining two is longer.. if that made any sense). You can see that their relationship is x2 or /2 (In another word, from A to B is multiplication- ex: 11 * 2 is 22, and from B to A is division- ex 22/2 is 11.) Since the missing number is the hypotenuse of triangle A and you know the Hypotenuse of triangle B all you have to do is divide side TS by 2 to get side SF. So the missing side is 13.

Answer: 13

8 0

3 years ago

The area of a triangle varies jointly with the lengths of its base and height. A triangle with a base of 10 ft and a height of 4

Assoli18 [71]

Answer:

<h2>12 square ft </h2>

Step-by-step explanation:

<h3>base = 3ft. and height = 8ft. </h3><h3>area of triangle = 1/2 ×base × height</h3><h3> = 1/2 ×3 × 8</h3><h3> = 24 /2</h3><h3> = 12 square ft. </h3>

<h2>MARK ME AS BRAINLIST</h2><h3>PLZ FOLLOW ME</h3>

3 0

3 years ago

What's the domain for this???

nikklg [1K]

All Real Numbers is the domain

8 0

3 years ago

Read 2 more answers