Mathematics, 02.02.2020 19:01, maga2019

Can some one give me the answers 15 points

Answers: 2

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I know all the anwers but it won't help you to give you al the answers, so I wil solve all of each type
8 and 9 are similar, so I will solve 9
10 is one
11 is last

I will solve 9,10,11

9.
convert into ax^2+bx+c=0 form
add 4x^2 to both sides
4x^2+5x+9=0
for
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$
x= $\frac{-5+/- \sqrt{5^2-4(4)(9)} }{2(4)}$
x= $\frac{-5+/- \sqrt{25-144} }{8}$
x= $\frac{-5+/- \sqrt{-119} }{8}$
no real soltuions, D

(number 8, would be x= $\frac{-10+/- \sqrt{10^2-4(1)(-39)} }{2(1)}$ , simplify it yourself)

10. difference of 2 perfect squares, recognize it and do no work
(a-b)(a+b)=a²-b²
(3x-4)(3x+4)=(3x)²-(4)²=9x²-16
B

11.
to move an equation c units to the right, minus c from every x
that is what happend
minus 2
moved to the right 2 units
B is answer

8. simplify x= $\frac{-10+/- \sqrt{10^2-4(1)(-39)} }{2(1)}$ yourself to get answer
9. D
10. B
11. B

answered: Guest

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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answers

rauschg

rauschg · hand

know the answer? add it here!

step-by-step explanation:

answered: Guest

step-by-step explanation:

there is vertical asymptote at x = 2 and x = 0

vertical asymptote occurs at the points where the denominator is 0. so we can say that

x = 2 occurs when there is a factor (x-2) in the denominator, and

x = 0 occurs when there is a factor "x" in the denominator