3 years ago

X>0 and 2x^2+3x-2=0 what is the value of x

Mathematics

1 answer:

vladimir2022 [97]3 years ago

3 0

Step-by-step explanation:

2x²+3x-2=0

(2x-1)(x+2)

x+2=0

x=-2 (no, because x must be >0)

2x-1=0

2x=1

x=½ (yes, because x>0)

You might be interested in

++= x 1 = + = 24 + = 6 ++ = ?

UNO [17]

Answer: 12

Step-by-step explanation:

4 0

3 years ago

25 − (8 − 4) ÷ 6 • 3=what plzzzz answer! Will mark Brainliest!!!!

serg [7]

25 - (8-4) /6 *3 = 25 - 2 / 6 * 3
=25-1
=24 #

“/”= divide
“*”= multiply

4 0

3 years ago

Read 2 more answers

110% of 70 as a decimal.

Leviafan [203]

110% OF 70 is 77( if you meant of as in multiply)

otherwise...I'm sure its 0.77

sorry if its incorrect

hope I was able to help in some way...

5 0

3 years ago

0v0 h e l p? 3r/4=1/8 (solve for r)

agasfer [191]

Answer:

r = 1/6

Step-by-step explanation:

$\dfrac{3}{4}r=\dfrac{1}{8}\\\\\\$

Multiply both sides by 4

$4*\dfrac{3}{4}r=4*\dfrac{1}{8}\\\\3r = \dfrac{1}{2}$

Divide both sides by 3

$\dfrac{3}{3}r=\dfrac{1}{2*3}\\\\r = \dfrac{1}{6}$

3 0

2 years ago

172% of 50 is what number?

Likurg_2 [28]

Answer:

172% of 50 means 172÷100 multiplied by 50 will give you 86

6 0

2 years ago

Read 2 more answers