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Sliva [168]
3 years ago
6

BRAINLIEST, THANKS, 5 STARS ! Correct and fast answers needed!!!!

Mathematics
1 answer:
Serhud [2]3 years ago
4 0

Answer:

A=-10x,B=-4

Step-by-step explanation:

-5x*2=-10x

-2*2=-4

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vichka [17]
The commutative property


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4 years ago
Which of the following is not a property of a rectangle?
sleet_krkn [62]
The correct answer is d
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The smaller cone is replaced with another cone of equal radii, but a height twice as big.
Bess [88]
Let's make this simple. Let's have the small cone have a radius 1 and the height 1. This would make the bigger cone have a radius of 1 and the height of 2.

With this information, lets get the volume of both cones. The formula is this:

V =  \dfrac{(\pi r^2 h)}{3}

Plug in numbers:
Small cone: V =  \dfrac{(\pi 1^2 \times 1)}{3}
Big cone: V =  \dfrac{(\pi 1^2 \times 2)}{3}

The small cone has a volume of \dfrac{\pi}{3}
The big cone has a volume of \dfrac{2 \pi}{3}

Now, you want to find how many small cones you need to have the same total volume of the big cone.

\dfrac{2\pi}{3} -  \dfrac{\pi}{3} =  \dfrac{\pi}{3} 


You have the difference of pi over 3 comparing the big cone to the small one. You realize that the small cone has the same volume of that. Therefore, you need 2 small cones to have the same total volume as the larger cone
6 0
3 years ago
If Angela has $500 to invest at 2.5% per annum compounded quarterly, how long will it be
11Alexandr11 [23.1K]
N = number of compounding periods
Years = log (total / principal) / n * log (1 + rate / n)
Years = log (750 / 500) / 4 * log (1 + .025/n)
Years = log (1.5) / 4 * log (1<span><span>.00625) </span>
</span> <span>Years = 0.17609125906 / 4 * 0.0027058933759
</span><span>Years = 0.17609125906 </span> / <span> <span> <span> 0.0108235735 </span> </span> </span>
Years = <span> <span> <span> 16.2692348382 </span> </span> </span>

Source Calculator
http://www.1728.org/compint.htm


5 0
3 years ago
The variable Z is directly proportional to X, and inversely proportional to Y. When X is 3 and Y is 6, Z has the value 9.5. What
jasenka [17]
That the variable Z is directly proportional to X and inversely proportional to Y means Z = A (X/Y)

=> A = Z* Y / X

=> 9.5 * 6 / 3 = Z * 12 /8

=> Z = 9.5 * 8 * 6 / (3 * 12) = 12.67

Answer: 12.67
4 0
4 years ago
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