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Leona [35]
4 years ago
15

How to solve -6r(4r-5)-2(r-2) plz...

Mathematics
1 answer:
wlad13 [49]4 years ago
6 0

-6r(4r - 5) - 2(r - 2)

(-6r).4r - 5.(-6r) - 2.r - 2.(-2)

-24r² + 30r - 2r + 4

-24r² + 28r + 4

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Leviafan [203]
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8 0
3 years ago
A manager has 2500 kg of sand delivered to a construction site everyday.
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3 0
3 years ago
This one is hard! try your best please.
user100 [1]

Answer:

1. 301.6 in^{3}

2. 576 in^{3}

3. 274.41 in^{3}

Step-by-step explanation:

We know that the diameter of one of the spheres must be 4 in, because the length of the box is 12 in and there are 3 spheres along each side, and \frac{12}{3} =4. That means that the radius of a sphere is 2 in. Put 2 into the formula for the volume of a sphere, and then multiply your solution by 9, to get the total volume.

Then, you can find the volume of the box, because you know its dimentions are 12x12x4.

Subtract your answer for part 1 from your answer for part 2, and you have the solution to part 3. Hope this helps!! :-)

3 0
3 years ago
Which ratio does not represent the slope of a line​
Alex787 [66]

Answer:

more info please

Step-by-step explanation:

7 0
3 years ago
What is the difference of the rational expressions below? 13x/5 - 4x/5
salantis [7]
<span>13x/5 - 4x/5
</span> What you must do in this case is a sum of fractions.
 Step 1:
 Common factor 5 in the denominator
 Step 2:
 Perform subtraction of numerator
 Step 3:
 Rewrite the expression.
 See attached image.
 Answer:
 a. 9x/5

7 0
4 years ago
Read 2 more answers
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