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
neonofarm [45]
3 years ago
12

Find the solution of 5 times the square root of the quantity of x plus 7 equals negative 10, and determine if it is an extraneou

s solution
Mathematics
2 answers:
likoan [24]3 years ago
8 0

we are given

5 times the square root of the quantity of x plus 7

so, we get

left side is

5\sqrt{x+7}

right side is -10

so, we can set them equal

5\sqrt{x+7}=-10

Since, we have to solve for x

so, we will isolate x one anyone side

and then we can solve for x

we take square both sides

(5\sqrt{x+7})^2=(-10)^2

25(x+7)=100

Divide both sides by 25

\frac{25(x+7)}{25} =\frac{100}{25}

x+7 =4

Subtract both sides by 7

x+7-7 =4-7

x =-3

Extraneous solution:

we can plug x=-3 into original

5\sqrt{-3+7}=-10

5\sqrt{4}=-10

5*2=-10

10=-10

we know that 10 is not equal to -10

so, x=-3 is not valid solution

Hence, this is extraneous solution...........Answer

Leto [7]3 years ago
6 0
The solution of the information given will be as follows:
5√(x+7)=10
dividing both sides by 5 we get:
√(x+7)=2
squaring both sides we get:
(x+7)=2²
x+7=4
solving for x we get
x=4-7
x=-3
thus the answer is x=-3
this is an extraneous solution.<span />
You might be interested in
How you could multiple 6×99 in your head?
Andrew [12]
99 is 1 less than 100.
(100-1)×6

100×6=600
-1×6=-6

600-6=<span>594

Answer: 594</span>
4 0
3 years ago
Read 2 more answers
Approximently how many centiliters are in 3 quarts? Round your answer to the nearest unit.
Alex787 [66]
There should be 283.9. (rounded to the nearest unit). :) <span />
6 0
2 years ago
Read 2 more answers
Select the correct answer.
kati45 [8]

Answer:

25

Step-by-step explanation:

divide 48 by 4 which is 25%

3 0
3 years ago
Write 58 1/2 in radical form
Natalija [7]
58^(1/2) is √58 if that is what you meant
4 0
3 years ago
Help ASAP please ..<br> Explain answer ..
Luba_88 [7]

Answer:

C

Step-by-step explanation:

Becuase it is the number of caleders purchesed times how many calenders

8 0
3 years ago
Read 2 more answers
Other questions:
  • Estimate by first rounding each number to the nearest . 1/2 3 4/11 2 1/10
    15·1 answer
  • Can u explain when answering thanks !
    10·1 answer
  • The table shows the amount of milk that Wisconsin dairy farms produced from 1942 to
    11·1 answer
  • The martins swimming pool is a square and is in the center of a square plot that is 33 meters on a side. They have 1025 square m
    9·1 answer
  • A/b = c for b solve for the indicated variable
    11·1 answer
  • Which of the following terminating decimals is equivalent to -1 3/4
    10·1 answer
  • Precalc please help!!!
    12·1 answer
  • Please i need your help?
    5·1 answer
  • The present ages of hero and hero in the ratio 3 is to 4 5 years from now their ratio of their ages will be 4 is 25 find the pre
    7·1 answer
  • Question 9 of 10
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!