flawlesszee flawlesszee

01-06-2020
Mathematics

contestada

Which of the following could be a solution to x^2 = 400

a. -200
b. -20
c. 40
d. 100

Respuesta :

dshtengel dshtengel

01-06-2020

Answer:

a. -200

Step-by-step explanation:

Square root both sides:

x = +/- 200

x = -200, 200

x = -200

Answer Link

jimrgrant1 jimrgrant1

01-06-2020

Answer:

b

Step-by-step explanation:

Given

x² = 400 ( take the square root of both sides )

x = ± [tex]\sqrt{400}[/tex] = ± 20

Thus x = - 20 is a solution of the equation → b

Answer Link

Otras preguntas

Write a decimal that can be used for n to make the inequality below true 28.376>n

Rosa used a pattern using the rule "Subtract 7". The first two numbers in her pattern were 83 And 76. Which number below is apart of rosas pattern? A. 41 B. 49

Why did the earliest immigration restrictions appear in california?

Express x^3+4x^2-45x in factored form

A train leaves Little Rock, Arkansas, and travels north at 70 kilometers per hour. Another train leaves at the same time and travels south at 75 kilometers per

Find the interquartile range for the Dara set :10,3,8,6,9,12,13 A.12 B.8 C.6 D 7

Solve by factoring of finding square roots. 16x^2=56x

Answer the question above

what is a defining feature of Neoclassical art?a. it was based on mythological themesb. it is centered on fantastical creaturesc. it emphasizes love ad pleasure

What is the equation in point slope form of the line that passes through the point (–1, –3) and has a slope of 4? y+1=4(x+3) y−1=4(x−3) y−3=4(x−1) y+3=4(x+1)