All categories

3 years ago

Which represents the solution(s) of the graphed system of equations, y = x2 - 2x and y = -2x - 1?

Mathematics

2 answers:

erik [133]3 years ago

8 0

Answer:-3x

Step-by-step explanation:

I took negative 2x minus 1 and got negative 3x

Lubov Fominskaja [6]3 years ago

7 0

Answer: theres no interception between those two graphs.

step by step here

You might be interested in

THIS IS WORTH 40 POINTS HELP

nataly862011 [7]

Answer:

Step-by-step explanation:

Meeting ID: 621 872 6773

Passcode: UL4qmA

5 0

3 years ago

Read 2 more answers

Helen purchased 3 copies of a book online at a 20% discount. She also paid $10 for shipping that was not discounted. How much wa

umka21 [38]

Answer:

The original price of the book was $12.50

Step-by-step explanation:

3x - 0.2(3x) + 10 = 40
30x - 2(3x) + 100 = 400
30x - 6x + 100 = 400
24x + 100 = 400
24x = 300
x = 12.50

3 0

2 years ago

Y is directly proportional to square root of x<br> If y=56 when x=49 find,<br> y when x=81

STALIN [3.7K]

$\qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\ \textit{\underline{x} varies directly with }\underline{z^5}\qquad \qquad \stackrel{\textit{constant of variation}}{x=\stackrel{\downarrow }{k}z^5~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}$

$\stackrel{\begin{array}{llll} \textit{"y" directly}\\ \textit{proportional to }\sqrt{x} \end{array}}{y = k\sqrt{x}}\qquad \textit{we know that} \begin{cases} y = 56\\ x = 49 \end{cases}\implies 56=k\sqrt{49} \\\\\\ 56=7k\implies \cfrac{56}{7}=k\implies 8=k~\hfill \boxed{y=8\sqrt{x}} \\\\\\ \textit{when x = 81, what is "y"?}\hfill y=8\sqrt{81}\implies y=8(9)\implies y=72$

7 0

2 years ago

Ms. Herty spent 15 hours grading math quizzes in December each grading session lasted 3/4 of an hour how many grading sessions d

Fed [463]

Answer:

11.25 :D

Step-by-step explanation:

4 0

3 years ago

Factor the expression completely. -8x - 16

Akimi4 [234]

Answer:

-8x -16

-8( x + 2 )

......

4 0

4 years ago