3 years ago

IM AM SO CONFUSED

Mathematics

1 answer:

Semenov [28]3 years ago

6 0

Hello,

Answer (1/2,-1/4)

$8x^2-2x-1=0\\\\8x^2-4x+2x-1=0\\\\4x(2x-1)+2x-1=0\\\\(2x-1)(4x+1)=0\\\\sol=\{\dfrac{1}{2} ,-\dfrac{1}{4} \}\\$

You might be interested in

If 3x+2=5/9, what is the value of −3x+8?<br><br>Group of answer choices

allsm [11]

Answer:

= 4

Step-by-step explanation:

first lets find the value of x in 3x+2=5/9

3x+2=5/9

3x = $\frac{5}{9}$ -2

3x = $\frac{3}{9}$

3x = $\frac{1}{2}$

x = $\frac{1}{2 * 3\\ }$

x = $\frac{1}{6}$

$\frac{1}{6}$ can also be written as $6^{-1}$

−3x+8

-3 ( $\frac{1}{6}$ ) +8

$\frac{-3}{6}$ +8

= 4

3 0

2 years ago

Which of the folloing pairs consists of equivalent fractions? .4/6 and 3/5 or 9/16 and 3/32 or 18/48 and 15/40 or 7/10 and 10/7

Fudgin [204]

Answer:

18/48 and 15/40

Step-by-step explanation:

18/48 = 3/8

15/40 = 3/8

•°• 18/48 is equivalent to 15/40

5 0

3 years ago

If twice my age in months is 120, what is then my age in years?

mote1985 [20]

Answer:

Step-by-step explanation:

120/2=60/5=12

8 0

3 years ago

Please help! I don't understand this.

nydimaria [60]

Answer:

1) 7

2) 49

3) 56

4) 9

5) 91

Step-by-step explanation:

For the day blanks, you just multiply the number of weeks by 7.

For the week blank, you divide 63 by 7

3 0

3 years ago

STRANGERS, HELP!

forsale [732]

I got 10 for this one.

3 0

3 years ago