The function below allows you to convert degrees Celsius to degrees Fahrenheit. Use this function to convert 30 degrees Celsius to degree
Fahrenheit.

86 degrees

Step-by-step explanation:

Cmon. Simply add them. 9 x 30 = 270, then 270/5 = 54, then 54 + 32 = 86

F(c) just means the value of fahrenheit depends on the value of c, celsius

87%

step-by-step explanation:

apex answer

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