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motikmotik
3 years ago
13

I need help with math!!! time is running out!!! will mark brainliest!!!

Mathematics
1 answer:
salantis [7]3 years ago
5 0
3/10
Calm down u got this;)
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PLEASE HELP
enot [183]
The triangles are shown to be similar, therefore

\displaystyle \frac{54}{12} = \frac{x}{2} \\ \\
x = 2 \cdot \frac{54}{12} \\
x = 9

The answer is 9 units
8 0
3 years ago
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Mara found the length of time of an investment. The principal of the investment was $4,300, the interest rate was 6.2 percent, a
77julia77 [94]

well, 6.2% of 4,300 can't be over half. she has made a calculation error, and the real answer is (this is where the mistake was made) 4,300 * 0.062 (not 6.2, because percents are always divided by 100 to make them into a usable number), which is equal to $266.60.

3 0
3 years ago
What is the period of the function y=-4sin (2/3x-pi?3)?
ad-work [718]
2/3 x = 2 pi
x = 2pi × 3/2 = 3pi

period = 3pi
7 0
4 years ago
Why does: 5x+3x+2x = 10x and not 10xxx?
Helen [10]
Because you are not adding the x's .When you add the coefficients, the variable comes along with it.
8 0
3 years ago
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Point C is reflected across the y-axis. Which point represents the reflection? ANWSER QUICKLY PLEASE!
sp2606 [1]

Answer:

whichever is the same on the y cordanate but not the x cordanate (opsite side of 0)

Step-by-step explanation:

Change the negativity of the first number in the cords are pair then chose that answer that is there

3 0
3 years ago
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