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
Maslowich
3 years ago
11

Please help me with this problem. I am not sure if I am correct.

Mathematics
1 answer:
jek_recluse [69]3 years ago
3 0

Answer:

only -7

Step-by-step explanation:

Just plug them in.

so for x=-7 \sqrt{-2(-7)-5}=(-7)+4\\\sqrt{9}=-3 \\ 3=-3So this one is extraneous

Then if you plug -3 in you get 1 = 1 so this one is not extraneous.  if you need me to work this one out let me know.  

You might be interested in
What is the greatest common factor of 72, 54,and 18
padilas [110]

Answer:

18

Step-by-step explanation:

Factors of 54

1, 2, 3, 6, 9, 18, 27

Factors of 72

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36

Factors of 18

1, 2, 3, 6, 9, 18.

Greatest Common Factor

We found the factors and prime factorization of 72, 54 and 18. The biggest common factor number is the GCF number.

So the greatest common factor 72, 54 and 18 is 18.

3 0
3 years ago
Read 2 more answers
ASAP!!!<br> Find the zero of the function f(x) = -8x + 4.<br> a. -1/2<br> b. 2<br> c. -2<br> d. 1/2
Katyanochek1 [597]

Answer:

D. 1/2

Step-by-step explanation:

Because if you choose A , you get +4

if you choose B ,you get -12

Choose C , you get +20

D is the correct answer.

6 0
3 years ago
Jennie charges $200 per passenger for a sunset sailing
Over [174]

Answer:

1692.5 and -232.5

Step-by-step explanation:

6 0
3 years ago
What is 1/4 times 268?
tia_tia [17]
1/4 is equal to 0.25. so you can multiply 0.25 and 268 to get your answer of 67
8 0
3 years ago
Can enyone answer this question plz<br><br><br><br> what is 10x4x5x2x34x89x73x3217x56=?
Molodets [167]
The answer is-- 15,918,086,598,400. why do you need it?

7 0
4 years ago
Read 2 more answers
Other questions:
  • Which equation in slope intercept represents the line that goes through the points (-1, 6) and (1, -2)
    8·1 answer
  • Write the equation of the line, in standard form, that has an x-intercept of 2 and is parallel to 2x + y = -5. Include your work
    14·1 answer
  • Find the area of this composite figure use 3.14 for pi
    13·1 answer
  • Find the area of the trapezoid below.
    13·1 answer
  • PLZ HELP ASAP!!!!
    7·1 answer
  • The sum of 3/4 of a number and 7​
    8·1 answer
  • A car is bought at the price of $45,000. The price decreases at the rate of .25 every year (t). Which equation matches this expo
    6·1 answer
  • In summer, the price of strawberries goes up by $1.25 per pound. Sam bought two pounds of strawberries at the new price for $8.4
    9·1 answer
  • Oakley works at a factory that packs products in two
    7·1 answer
  • A dining set is priced at $785. If the sales tax is 9 percent, what is the cost to purchase the dining set? Round to the nearest
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!