A rectangle is 5 feet long and 7 yards wide. What is the area of the rectangle in square inches? (Hint: 12 inches=1 feet, 3 feet=1 yard)

15120 in^2

Step-by-step explanation:

5×12= 60inch. 7×3=21×12= 252

Area=60×252=15120 ^_^

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

i need a picture

step-by-step explanation: