TomSuyar TomSuyar

21-12-2019
Mathematics

contestada

B is the midpoint of AC. AB=7x-4 and BC=4x+5. Find AC.
A) 51
B) 68
C) 17
D) 34

B is the midpoint of AC AB7x4 and BC4x5 Find AC A 51 B 68 C 17 D 34 class=

Respuesta :

JustPotato JustPotato

21-12-2019

Answer:

D) 34

Step-by-step explanation:

Since B is the midpoint, AB = BC

Plug the two in:

7x - 4 = 4x + 5

Solve for x:

3x = 9, x = 3

Find AB + BC

since BC = AB

AC = 4x + 5 + 4x + 5

AC = 8x + 10

AC = 8(3) + 10

AC = 24 + 10

AC = 34

Answer Link

Otras preguntas

Select all that apply. United States and British counteractions to Communist expansion in Europe included which of the four actions? Truman Doctrine the Marshal

how do you simplify 4/20

During the 1600s and 1700s, Prussian kings built a strong nation by __________. encouraging commerce and industry taxing the land-owning nobility creating a par

Who proposed the idea of uniformitarianism first? A. James Hutton B. Jean Baptiste Lamarck C. Charles Lyell D. Charles Darwin

Can some one give me step by step instructions on how to solve this? log(4x+3)=0

Why is air warmer at the top of the stratosphere than at the top of the troposphere? Thank you!!!

Who headed up the investigation into the Kennedy assassination? Lee Harvey Oswald Jack Ruby President Johnson Earl Warren

Which sentence does not contain any punctuation errors? A. Miss Wallace, our babysitter, tried to open the pickle jar. B. Miss Wallace our babysitter, tried to

What was name of the Middle Colonies because these colonies were large producers of grain?

Which one of the following statements best describes the war by 1916? Germany made great gains on land and sea. The war reached a stalemate. The Germans faced s