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2 years ago

Which number sentence is true?

Mathematics

1 answer:

statuscvo [17]2 years ago

3 0

The answer would be D

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Identify all of the following solutions of square root of x minus 8 end root plus 8 equals x.

Anit [1.1K]

$\sqrt{x-8} +8=x \\ \sqrt{x-8} =x-8 \\ {( \sqrt{x-8} )}^{2} = {(x-8)}^{2} \\ x-8= x^{2} -16x+64 \\ x^{2} -16x-x+64+8=0 \\ x^{2} -17x+72=0$

$(x-8)(x-9)=0 \\ x-8=0 \ and \ x-9=0 \\ x=8 \ and \ x=9$

4 0

3 years ago

Read 2 more answers

8^2 x (2+6) / 4<br>solve

Softa [21]

Answer:

$8^2\times \frac{\left(2+6\right)}{4}$

$\frac{\left(2+6\right)}{4}$ = 8/4 = 2

$8^2 \times 2$ =

64 x 2 =

128.

3 0

2 years ago

-12 times 1over3 help.

sergey [27]

Answer:

-4

Step-by-step explanation:

4 0

3 years ago

in a city school of 1,200 students, 40% of the students are on the honor roll, 60% have a part-time job, and 22% are on the hono

Alexus [3.1K]

Let
A = event that the student is on the honor roll
B = event that the student has a part-time job
C = event that the student is on the honor roll and has a part-time job

We are given
P(A) = 0.40
P(B) = 0.60
P(C) = 0.22
note: P(C) = P(A and B)

We want to find out P(A|B) which is "the probability of getting event A given that we know event B is true". This is a conditional probability

P(A|B) = [P(A and B)]/P(B)
P(A|B) = P(C)/P(B)
P(A|B) = 0.22/0.6
P(A|B) = 0.3667 which is approximate

Convert this to a percentage to get roughly 36.67% and this rounds to 37%

Final Answer: 37%

4 0

3 years ago

Dream studio offers 5 music lessons for $60 fox studio offers 8 music lessons for $72 what is the cost per lesson

AlexFokin [52]

Answer:

dream studio

1=$12

fox studio

1=$9

therefore, fox studio is better

8 0

3 years ago