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3 years ago

15

Is x=(-2) a function

1 answer:

mezya [45]3 years ago

5 0

X = -2 is not a function. A function requires an input and an output. Examples:

y = x
f(x) = x2

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X = -2y + 300 3y = 800 - 4x

devlian [24]

Answer:

<h2>x = 140, y = 80</h2>

Step-by-step explanation:

$\left\{\begin{array}{ccc}x=-2y+300&(1)\\3y=800-4x&(2)\end{array}\right\\\\\text{Substitute (1) to (2):}\\\\3y=800-4(-2y+300)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\3y=800+(-4)(-2y)+(-4)(300)\\\\3y=800+8y-1200\\\\3y=8y-400\qquad\text{subtract}\ 8y\ \text{from both sides}\\\\-5y=-400\qquad\text{divide both sides by (-5)}\\\\y=80\\\\\text{Put it to (1):}\\\\x=-2(80)+300\\\\x=-160+300\\\\x=140$

8 0

3 years ago

Read 2 more answers

CAN SOMEONE HELP ME

Xelga [282]

Answer:

it should be number A hope that helps

7 0

2 years ago

I need help again if I don't get this right then I'll have to do the lesson all over again and I'm already 10 lessons behind!

xxTIMURxx [149]

<h3>♫ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ♫</h3>

➷ It would be option D

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

6 0

3 years ago

Read 2 more answers

Jaeden is shopping for shoes. The available styles are Jordan (J), Adidas (A), and under armor (U), Make an organized list to sh

anzhelika [568]

Answer:

J, A

J, U

A, U

Step-by-step explanation:

5 0

3 years ago

Rosc has $500 in her savings account. She carnis simple interest at 5%

Firlakuza [10]

Answer:

50

Step-by-step explanation:

I assume you are asking how much she EARNS after 2 years.

500x.-5=25 interest per year

25 x 2 years = 50 interest for 2 years.

5 0

3 years ago