3 years ago

Need some help (: thanks!

Mathematics

1 answer:

Leya [2.2K]3 years ago

6 0

We know that w = 21 so:

$(4x+z)(3x-w)=0\\\\(4x+z)(3x-21)=0\\\\3x-21=0\\\\3x=21\qquad|\div3\\\\\boxed{x=7}$

Answer D) (7;0)

You might be interested in

The number pi approximately equal to 3.14159265359

ch4aika [34]

Hundredth 3.14
Tenth 3.1
Whole number 3

8 0

4 years ago

Read 2 more answers

5x + 1 = 11<br> What is the first step?

vlabodo [156]

The first step would be to subtract 1 from both sides, leaving you with 5x = 10.

4 0

3 years ago

Read 2 more answers

What is the range of this function?<br><br> plese Helppppppppppppp

nydimaria [60]

Answer:

Step-by-step explanation:

B is right

CHOOSE IT WITHOUT HESITATE

4 0

3 years ago

HELP ME . I NEED THE ANSWER NOW PLEASE HELP SMALLER X AND LARGER X

s2008m [1.1K]

Answer:

smaller x= -12

larger x= 12

Step-by-step explanation:

$3x^2+4=436\\$

subtract 4

$3x^2=432$

divide by 3

$x^2=144$

square root

$\sqrt{x^2} =\sqrt{144}$

$x= +-\sqrt{144}$

$x= 12\\x= - 12$

3 0

3 years ago

Read 2 more answers

After increasing by 30% it became $520?

Alex

So from 100% you increased it by 30% to become 520
130%=540
percent means parts out of 100
130%=130/100=1.3
1.3 of whole=520
divide both sides by 1.3
whole=400

the number was 400

6 0

3 years ago

Read 2 more answers