What is the vertex of this quadratic function?

h (x) = - 5 (x + 7) 2 + 11

A.

(7,11)

B.

(7,-11)

C.

(-7,-11)

D.

(-7,11)

A ladder needs to reach a second-story window that is 13 feet above the ground and make an angle with the ground of 72°. How far out from the building does the base of the ladder need to be positioned? Round your answer to the nearest tenth.

WHat is an expression using exponents that equals 40

An even function must always have what characteristic?

I'm the figure below angle y and angle x form vertical angles angle x forms a straight line with the 50 degree angle and the 40 degree angle write and solve an equation to determine the angle of y

A check of dorm rooms on a large college campus revealed that 38% had refrigerators, 52% had tvs, and 21% had both a tv and a refrigerator. what's the probability that a randomly selected dorm room has a. a tv but no refrigerator? b.

leann, brianna and destini were building a snowman. leann made the head with a circumfrance of 26" brianna made the body 1.5 times larger than the head destini wanted to make the base 1.

60 people will be attending a dinner party. each table at the party can seat 8 people. how many tables are needed? write and solve the number fact you used to find the answer and explain your reasoning.

What number should be added to both sides of the equation to complete the square? x2 - 10x = 7

Adam had 12 trucks. he gave 4 to Ed. how many trucks does Adam have now?

7000 (1+.065/12) 12*15