2 years ago

Given the equation −4square root of x minus 3 = -12, solve for x and identify if it is an extraneous solution.

Mathematics

1 answer:

IRINA_888 [86]2 years ago

4 0

Answer:

D. x = 12, solution is not extraneous

Step-by-step explanation:

-4√(x - 3) = -12

Divide both sides by -4

√(x - 3) = 3

Square both sides

x - 3 = 9

add 3 to both sides

x = 12

To see if it's extraneous plug into original problem

-4√(12 - 3) = -12

-4√(9) = -12

-4 * 3 = -12

-12 = -12

not extraneous

You might be interested in

Evalute 27⋅((3^3)^−1)

shtirl [24]

Answer: 0.81

Step-by-step explanation:

=27⋅((3^3)^−1)

Do the brackets first:

3^3 is the same as 3³ so it is 27

then:

27^-1 equals 0.03

And lastly:

multiply 27 and 0.03

27(0.03)=0.81

8 0

3 years ago

You and a friend or 2 pizzas from pizza hut. you ate 7/8 of one pizza and 3/4 of the other pizza. find the product of the amount

kotegsom [21]

13/8 or 1 5/8
3/4 becomes 7/8 when add it is 13/8

6 0

2 years ago

What is the answer to this problem 0.05n+0.10(2n)=9.25

kolbaska11 [484]

Answer: n=37

Step-by-step explanation:

0.05n+0.10x2n=9.25

0.25n=9.25

n=9.25/0.25

n=37

6 0

2 years ago

An observational study found that the amount of sleep an employee gets each night is associated with job performance. The correl

blagie [28]

Answer:

The correct option is D.) Causation cannot be determined from an observational study.

Step-by-step explanation:

The conclusion is not correct because

D.) Causation cannot be determined from an observational study.

Causation determined from an observational study is speculative and cannot be confirmed without data from a real experiment.

6 0

2 years ago

Tema: Operadores Matemáticos a*b=4a+5b

zhenek [66]

Yes it does bdffgjkhhh BGC. Bc. G. G. G. Y. Y. Y

4 0

3 years ago