What is the value of the expression below 3 1/4 - 1 78

=1

Step-by-step explanation:

First, Rewriting our equation with parts separated:

=3 + 1/4 − 1 − 7/8

Then, Solving the whole number parts:

3 − 1= 2

After, Solving the fraction parts

1/4−7/8=?

Find the LCD of 1/4 and 7/8 and rewrite to solve with the equivalent fractions.

LCD = 8

2/8−7/8=−5/8

Then, Combining the whole and fraction parts

2 − 5/8=1 3/8

Next, converting mixed numbers to fractions, our initial equation becomes,

134−158

Finally, doing all the work you answer is going to be :

Mark me the brainliest:)!!

∞ 234483279c20∞

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

answer: 5100 just subtract

step-by-step explanation: