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Maksim231197 [3]
3 years ago
14

Jen and Maria have dance class at 3:45 . Write the time two different ways. Is it am or pm ? Explain

Mathematics
2 answers:
jonny [76]3 years ago
6 0
Dance class is at 3:45pm, because the dance studio would not be open that early.
V125BC [204]3 years ago
3 0
3:45 or 15:45. It is p.m. because they would not open that early in the morning
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Why do you switch the inequality sign when multiplying or dividing by a negative?
Andreas93 [3]
If we multiply or divide both sides of an inequality by a negative number, you have to flip the inequality. Hope this helps :)
5 0
3 years ago
Math question #1 please show steps
-Dominant- [34]

Answer:

C

Step-by-step explanation:

An approximation of an integral is given by:

\displaystyle \int_a^bf(x)\, dx\approx \sum_{k=1}^nf(x_k)\Delta x\text{ where } \Delta x=\frac{b-a}{n}

First, find Δx. Our a = 2 and b = 8:

\displaystyle \Delta x=\frac{8-2}{n}=\frac{6}{n}

The left endpoint is modeled with:

x_k=a+\Delta x(k-1)

And the right endpoint is modeled with:

x_k=a+\Delta xk

Since we are using a Left Riemann Sum, we will use the first equation.

Our function is:

f(x)=\cos(x^2)

Therefore:

f(x_k)=\cos((a+\Delta x(k-1))^2)

By substitution:

\displaystyle f(x_k)=\cos((2+\frac{6}{n}(k-1))^2)

Putting it all together:

\displaystyle \int_2^8\cos(x^2)\, dx\approx \sum_{k=1}^{n}\Big(\cos((2+\frac{6}{n}(k-1))^2)\Big)\frac{6}{n}

Thus, our answer is C.

*Note: Not sure why they placed the exponent outside the cosine. Perhaps it was a typo. But C will most likely be the correct answer regardless.

5 0
3 years ago
Can anybody help me with this problem 324 divided by 2,456?
UNO [17]

Answer:

0.13192182

Step-by-step explanation:

324/2456

To solve, divide.

324/2456

This equals:

0.13192182

Hope this helps!

3 0
3 years ago
Write an equation of the line through the given points<br><br><br>(0, 4), (3, 3)​
andre [41]

Hello! :)

Step-by-step explanation:

Slope=\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN}

\frac{3-4}{3-0}=\frac{-1}{3}=-\frac{1}{3}

<u><em>Therefore, the slope is -1/3.</em></u>

<u><em>-1/3 is the final answer.</em></u>

Hope this helps!

Have a nice day! :)

:D

-Charlie

Thank you!

4 0
3 years ago
7,10) and (7,20). Slope or no slope
hoa [83]

Answer: No slope

Step-by-step explanation: The line is going straight down.

3 0
3 years ago
Read 2 more answers
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