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
Leokris [45]
3 years ago
14

What are the solutions to this equation? 7x2 − 28 = 0

Mathematics
1 answer:
valentina_108 [34]3 years ago
8 0

Answer:

x = 2 or x = -2

Step-by-step explanation:

7x^2 - 28 = 0

7x^2 = 28

x^2 = 28/7 = 4

x = root(4)  or  x = -root(4)

x = 2 or x = -2

You might be interested in
GUYS PLS HELP MEEEE I REALLY NEED HELP
PilotLPTM [1.2K]

Answer:

x = 22.45

Step-by-step explanation:

Have a good day :)

6 0
3 years ago
Please i need help with this one​
swat32

Answer:

Step-by-step explanation:

use formula

F = 1/2*sqrt[ 4* r^2 -CD^2 ]  

F = 4.4721

4 0
3 years ago
Explain how an enlargement of reduction in the dimensions of a building would cause a change in the scale factor.
Delicious77 [7]

Answer:

The scale factor represents a proportional relationship between the scale drawing and the building’s dimensions. If the dimensions change, then the scale factor must also change to preserve the relationship.

Step-by-step explanation:

6 0
4 years ago
Factor 4x^2 -6w+2x-12xw
kirill [66]

Answer:

2(2x+1)(x-3w)

7 0
3 years ago
Read 2 more answers
What graph represents the solution set for the inequality?
algol13

Answer:

option D

Step-by-step explanation:

from the question 10>4-3x

it simply means 10-4>-3x

=6>-3x

x>6/-3

=x>-2

the above statement means that x is greater than -2

6 0
2 years ago
Other questions:
  • Albert multiplied a whole number by a fraction. The whole number is greater than one. The fraction is greater than zero and less
    6·1 answer
  • Suppose there are n students in a class what is the probability at least two students have same birthday
    15·2 answers
  • A rubber ball is dropped onto a hard surface from a height of 9 feet, and it bounces up and down. At each bounce it rises to 80%
    6·1 answer
  • What is the answer for (3s-4) (2s-2)​
    6·1 answer
  • Draw a number line from –10 to 10. Put tick marks at fourths. Graph a point with the given coordinate.
    13·1 answer
  • A toll collector on a highway receives ​$8 for trucks and ​$7 for cars. At the end of a 33​-hour ​period, she collected ​$296. H
    7·1 answer
  • The cable company charges a monthly fee of $45. Each movie rental is $1.99. You owe 68.88. How many movies did you rent?
    8·2 answers
  • X * 5 * 25 * 4 ÷ 5, if x = 813 simplified form please
    5·1 answer
  • If f (x)=x^2, then f (4) = 4^2= 16
    11·1 answer
  • Lisa is currently taking physics as one of her electives in school. her grade at the end of the year is determined by the averag
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!