1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nadezda [96]
3 years ago
11

What are the possible values of x if (4x - 5)2 = 49? Check all that apply. uw we we

Mathematics
1 answer:
kogti [31]3 years ago
7 0

Answer:

x = - \frac{1}{2}, x = 3

Step-by-step explanation:

Given

(4x - 5)² = 49 ( take the square root of both sides )

4x - 5 = ± \sqrt{49} = ± 7 ( add 5 to both sides )

4x = 5 ± 7, thus

4x = 5 - 7 = - 2 ( divide both sides by 4 )

x = \frac{-2}{4} = - \frac{1}{2}

or

4x = 5 + 7 = 12 ( divide both sides by 4 )

x = 3

As a check

Substitute these values into the left side of the equation and if equal to the right side then they are the solutions.

x = - \frac{1}{2}

left side = (- 2 - 5)² = (- 7)² = 49 = right side ⇒ solution

x = 3

left side = (12 - 5)² = 7² = 49 = right side ⇒ solution

You might be interested in
Are these lines parallel perpendicular or neither
Natasha_Volkova [10]

Answer:

perpendicular

Step-by-step explanation:

start but putting each line into the standard line format

2x-y=-5

-y=-2x-5

y=2x+5

x+2y=-6

2y=-x-6

y=-(1/2)x-3

if lines are parallel the slopes would be the same. 2 is not equal to -1/2

if lines are perpendicular the slope of one would be the opposite inverse of the other.

negative inverse of 2 = - (1/2)

so the lines are perpendicular

8 0
3 years ago
12 meters equals how many kilometers?
san4es73 [151]

Answer:

0.012

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Dana bikes 10 mi in 50 min.<br> <br> <br> <br> At this rate, how far can she bike in 90 min?
lara31 [8.8K]
The answer will be 18 miles
8 0
2 years ago
Read 2 more answers
1. 43 +2)what is the value of the expression​
Maru [420]

Answer:

45

Step-by-step explanation:

This is the answer because:

1) 43 + 2 equals to 45

Hope this helps!

7 0
2 years ago
Match each expression with the equivalent expression.
otez555 [7]
Hope this helps good luck

3 0
3 years ago
Other questions:
  • the number of years that brad has been on the soccer team is 2 less than 5 times the number of years that scott has in total the
    7·1 answer
  • You are playing a solitaire game in which you are dealt three cards without replacement from a simplified deck of 10 cards (mark
    12·1 answer
  • The ratio of the perimeters of two rectangles is 4 to 7. The perimeter of the larger rectangle is 42 inches. What is the perimet
    15·1 answer
  • The question is identify the graph that represents the equation y-2=4(x-5)<br> can someone help me
    15·1 answer
  • What's the volume of the figure​
    14·2 answers
  • Find the area of the figure
    7·1 answer
  • Your family of 5 went to the Chinese buffet. The cost for each person was $8.95. The sales tax was
    15·1 answer
  • The Questions are in the PDF! please help me
    13·1 answer
  • The temperature in Bloomington on Sunday was 32.6°C. On Monday, the temperature changed by -8.25°C. What was the temperature on
    6·1 answer
  • Plzzz help me with my math it hard
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!