debradampierlc3 debradampierlc3

24-05-2019
Mathematics

contestada

What are the solutions to the equation 4b^2-45=-9

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

24-05-2019

Answer:

b = ±3

Step-by-step explanation:

4b^2-45=-9

Add 45 to each side

4b^2-45+45=-9+45

4b^2 = 36

Divide by 4

4b^2 = 36/4

b^2 =9

Take the square root of each side

sqrt(b^2) = sqrt(9)

b = ±3

Answer Link

Otras preguntas

Does Lenny actually die in of mice and men?

How do you solve for the quotient of (x^-1) - 1 ÷ x - 1?

What is the area of a rectangle with vertices (-8,- 2), (-3,-2 ), (-3,-6 ), and (-8, -6)?

Why is combination of good exercise and good eating the best way in which to lose body fat

A cake is shaped like a cylinder with a diameter of 9 in. The height of the cake is 6 in. What is the exact volume of the cake? Enter your answer in the box. pi

Match the polynomials with their factors. 2a2 + 5a − 3 (a + 1)(2a − 3) 2a2 − a − 3 (a − 1)(2a + 3) 2a2 − 5a − 3 (2a − 1)(a + 3) 2a2 + a − 3 (2a + 1)(a − 3)

But we're outside in the sun. My big brother Junior hunkered against the wall with his eyes shut. My little brother Keeks running around in circles.Maybe and mo

Describe the differences in biodiversity between the tropical rainforest and the arctic tundra.

Which of the following is NOT a barrier method of birth control? A. birth control patch B. condom C. sponge D. spermicide Please select the best answer from

Ricardo has one quiz each week in math class. The table gives the probability of having a quiz on each day of the week. What is the probability that Ricardo wil