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Zina [86]
3 years ago
5

Does 7-2 = 2-7 ? explain why or why not.

Mathematics
1 answer:
yanalaym [24]3 years ago
3 0
No. 7-2=5 and 2-7= -5. So 7-2= positive 5 and 2-7= negative 5.
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In a random sample of 64 people, 48 are classified as 'successful.' Determine the sample proportion of 'successful' people.
hichkok12 [17]

Answer:

The sample proportion of 'successful' people is \frac{3}{4}.

Step-by-step explanation:

The sample consist of 64 people and 48 of them are 'successful'. Hence, the proportion of 'successful' people is:

p = \frac{n}{N}

Where:

N - People that forms the sample, dimensionless.

n - People classified as 'successful', dimensionless.

Given that n = 48 and N = 64, the sample proportion of 'successful' people is:

p = \frac{48}{64}

p = \frac{3}{4}

The sample proportion of 'successful' people is \frac{3}{4}.

6 0
3 years ago
Please help, I will give brainliest to whoever helps!
jeka94
This is for problem 54
6 0
3 years ago
Jaylen wants to buy a book about animals.The original price is $4. What is the sale price
forsale [732]
The answer is $2.00 hope this helps
5 0
3 years ago
Solve 9(t-7)=u for t<br> Show all solving steps.
Gwar [14]

\begin{gathered}\\ \sf\longmapsto 9(t-7)=u\end{gathered}

\begin{gathered}\\ \sf\longmapsto 9t-63=u\end{gathered}

\begin{gathered}\\ \sf\longmapsto 9t=u+63\end{gathered}

\begin{gathered}\\ \sf\longmapsto \frac{9t}{9}=\frac{u+63}{9}\end{gathered}

\begin{gathered}\\ \sf\longmapsto t=\frac{u+63}{9} \end{gathered}

\begin{gathered}\\ \sf\longmapsto t=\frac{u}{9}+7\end{gathered}

3 0
3 years ago
Read 2 more answers
I don’t understand??
wlad13 [49]

Answer:

\huge\boxed{\sf x = 10}

Step-by-step explanation:

Hypotenuse = x

Base = 4

Perpendicular = \sqrt{84}

<u>Using Pythagoras Theorem:</u>

\sf H^2 = P^2 + B^2\\\\ x^2 = (\sqrt{84} )^2 + (4)^2\\\\x^2 = 84 + 16\\\\x^2 = 100\\\\Taking \ sq \ root \ on \ both \ sides\\\\x = 10\\\\\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
7 0
3 years ago
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