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miskamm [114]
3 years ago
8

15 PPOINTSMrs. France, a seventh-grade math teacher, is grading papers. Three students gave the following responses to the same

math problem:
Student one: −1 /2

Student two: 1−/2

Student three: −(1/2)


On Mrs. France's answer key for the assignment, the correct answer is −0.5. Which student answer(s) is (are) correct and why?ANWER JUST EXPLAIN WHY PLZZZZZZZZZZZ
Mathematics
2 answers:
alina1380 [7]3 years ago
6 0

Answer:student 3

Step-by-step explanation:

emmainna [20.7K]3 years ago
6 0
1÷2 would equal a half or 0.5.And the 0.5 is negative on the answer keys so -1/2 and -(1/2) are correct. So student one and student three are correct.

hope this helps
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How do i solve this question
frozen [14]
\bf \begin{cases}
h(x)=(f\circ g)(x)\\
h(x)=\sqrt{x+5}\\
f(x)=\sqrt{x+2}
\end{cases}\\\\
-------------------------------\\\\
(f\circ g)(x)\implies f[\ g(x)\ ]\implies f[\ g(x)\ ]=\sqrt{g(x)+2}\qquad thus
\\\\\\
\sqrt{g(x)+2}=(f\circ g)(x)=h(x)=\sqrt{x+5}\qquad therefore
\\\\\\
\sqrt{g(x)+2}=\sqrt{x+5}\impliedby \textit{squaring both sides}\\\\\\
g(x)+2=x+5\implies g(x)=x+5-2\implies \boxed{g(x)=x+3}
8 0
3 years ago
HELP ME PLEASE AND THANK YOU
Anna007 [38]

Answer:

The answer is B

Step-by-step explanation:

5 0
3 years ago
Express the radical using the imaginary unit i
valentinak56 [21]

Answer:

=\pm i\sqrt{66}

Step-by-step explanation:

So we have:

\pm\sqrt{-66}

This is the same as:

=\pm\sqrt{66\cdot-1}

Separate:

=\pm\sqrt{66}\cdot\sqrt{-1}

Replace the second term with i:

=\pm i\sqrt{66}

The square root of 66 cannot be simplified.

So, this is our answer :)

7 0
3 years ago
Find the loss or gain % when 20 pens are sold for the CP of 25 pen.​
mel-nik [20]

Answer:

20% gained

Step-by-step explanation:

25 - 20 = 5

5 / 25 * 100 = 20%

6 0
2 years ago
-5/3 is greater or less than square root of 3
inessss [21]

Answer:

-5/3 is less than (<) square root of 3

Step-by-step explanation:

-5/3 = -1.66666...

square root of 3=1.73205080...

either way the square root would be greater because the answer cant be negative. And negative is always less then a positive.

Hope this helps!

3 0
3 years ago
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