Which expression shows 3 2/5+(7 1/5) as a sum of integer and fractional parts?

Step-by-step explanation:

We are given that an expression

We have to find the expression which shows the sum of integer and fractional parts.

The given expression can be written as

Now, adding integers

Now, adding fraction parts we get

Hence, the expression which shows the given expression as a sum of integers and fractional parts is given by

answer: the answer to your question is parallel

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