britelamp40b1x britelamp40b1x

23-04-2018
Mathematics

contestada

Solve the quadratic equation. (x + 6)2 = 49
A) x = -7 or 1
B) x = 13 or -1
C) x = 1 or -13
D) x = ± 7

Respuesta :

MrsStrong MrsStrong

10-01-2019

Answer:

C

Step-by-step explanation:

To solve, use inverse operations:

[tex](x+6)^2=49\\\sqrt{(x+6)^2} =\sqrt{49} \\x+6=+/-7[/tex]

Now we solve for both +/- 7.

x+6=7

x=1

x+6=-7

x=-13

Answer Link

Otras preguntas

5,000 mL is equal to: 5 L 0.005 L 5,000 cm² 5,000 cm³

A well-written paragraph has facts that support the main idea. a. True b. False

for every rides at the fair there are 8 games. what is the ratio of rides to game?

Which island in the Caribbean did Ronald Reagan invade in 1983 without a formal declaration of war from Congress? A.Puerto Rico B.Grenada C.Cuba D.Jamaica

According to the Articles of Confederation, who had the most power? a. Congress. b. the states. c. the House of Representatives. d. the President.

Which mineral is known for transporting oxygen in blood? a. iron b. zinc c. copper d. calcium

One possible explanation for past climate changes is the movement of Earth’s major cities from their previous positions. Please select the best answer from the

during world war 1 the second phase in battles that crossed enemy lines and approached trenches was

During the Industrial Revolution, life changed in what basic way? A. People migrated from rural areas to cities. B. People learned to use machines to make their

If two angles in a triangle are complementary, what type of triangle is it? right isosceles acute equilateral