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netineya [11]
2 years ago
12

Can someone help with this question?

Mathematics
2 answers:
SVEN [57.7K]2 years ago
8 0
= 2x^2 + 5 - 4x + 3
= 2x^2 - 4x + 8

answer is B
elixir [45]2 years ago
5 0
When you subtract flip the signs of the second set.
2x^2+5-4x+3

Now combine like terms
2x^2-4x+8

Final answer: B
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I suck at math so I'm gunna ask a bunch of questions on this work
Nastasia [14]
It would be c plz mark me brainliest
3 0
3 years ago
Joe has one book each for algebra, geometry, history, psychology, Spanish, English and Physics in his locker. How many different
Alisiya [41]

Answer:

There are 35 different sets of 3 books Joe could choose

Step-by-step explanation:

* Lets explain how to solve the problem

- Combination is a collection of the objects where the order doesn't

 matter

- The formula for the number of possible combinations of r objects from

 a set of n objects is nCr = n!/r!(n-r)!

- n! = n(n - 1)(n - 2)................. × 1

Lets solve the problem

- Joe has one book each for algebra, geometry, history, psychology,

 Spanish, English and Physics in his locker

∴ He has <em>seven</em> books in the locker

- He wants to chose <em>three</em> of them

∵ The order is not important when he chose the books

∴ We will use the combination <em>nCr</em> to find how many different sets

  of three books he can choose

- The total number of books is 7

∴ n = 7

∵ He chooses 3 of them

∴ r = 3

∵ 7C3 = 7!/3!(7 - 3)! = 7!/3!(4!)

∴ 7C3=\frac{(7)(6)(5)(4)(3)(2)(1)}{[(3)(2)(1)][(4)(3)(2)(1)]}=35

∴ 7C3 = 35

* There are 35 different sets of 3 books Joe could choose

3 0
3 years ago
Plz help ill give u brainlist
Fed [463]
Angle 1 is a right angle =90 °
so 5x-85=90
5x=90+85
5x=175
x=35
8 0
3 years ago
Write the equation of the line given the slope and the y-intercept. Type your answer in the box without skipping any spaces. m =
Over [174]

The equation of a line given the slope and y-intercept is given as;

             m(x-x₁) = (y-y₁)

∴equation of line with m = 2 and y-intercept = (0,3) =

     2(x - 0) = (y - 3)

 = 2x - 0 = y - 3

  making y the subject obtains y = 2x + 3.

so, equation of the line: y = 2x + 3.

 

  

7 0
3 years ago
What are the coordinates of the hole in the graph of the function f(x)?
jonny [76]

Answer:

The coordinates are (2,8)

Step-by-step explanation:

A hole is where both the numerator and the denominator are zero

f(x)=x^2+4x−12 / x−2

Factor the numerator

f(x) = (x+6) (x-2)/ (x-2)

The hole will occur where x-2 =0

x-2=0

Add 2 to each side

x-2+2 =0+2

x=2

There is a hole at x=2

If we could cancel the x-2 values from the top and bottom, we are left with

f(x) = x+6

At x=2

f(2) = 6+2

f(2) would be 8

The coordinates are (2,8)

There is a hole

8 0
3 years ago
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