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Vaselesa [24]
3 years ago
8

HELP!! Simplify the expression 3y^2 • 4x^2y • 5x Using the laws of exponents. Show each step of your work.

Mathematics
1 answer:
JulsSmile [24]3 years ago
5 0
<span>3y^2 • 4x^2y • 5x = (3*4*5) * (</span><span>y^2 * y) * (</span><span>x^2*x) = 60 * y^3 * x^3 = 60 (xy)^3


</span>where ((<span>y^2 * y)) adding the powers in case of multiplication

and also for this:</span><span> (<span>x^2*x)</span>  </span>
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HURRY I NEED HELP PLS
vampirchik [111]

Answer:

3,454 cm³

Step-by-step explanation:

This is a cylinder so the volume formula is V=\pi r^{2} h

The problem gives us the diameter (20 cm) and the height (11 cm). Since the formula uses the radius instead of the diameter, we have to divide the diameter by 2.

20 ÷ 2 = 10

The radius is 10 cm

Now, we plug our height and radius into the formula to find the volume.

V=\pi r^{2} h\\V=(\frac{22}{7})(10)^{2}(11)\\V=(\frac{22}{7})(100)(11)\\

V≈3,454

8 0
2 years ago
A real number line can represent both real and imaginary numbers<br><br> True or false ?
forsale [732]

Answer:

True

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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pantera1 [17]

Answer:

$36

Step-by-step explanation:

we need to find the cost of 12 items, and the function of determining the cost is C(x)=2x+12, where x is the number of items (the input value of the function)

we know that there are 12 items, so in this function, x=12

substitute x as 12 in the function; the x in C(x) also gets substituted as 12, as 12 is the input value and the value of C(x) is the output

C(12)=2(12)+12

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C(12)=24+12

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7 0
3 years ago
Simplify the expression.<br> -2.7f + 0.8f - 16 - 4
Mazyrski [523]

Answer:

-1.9f-20

Step-by-step explanation:

-2.7f+0.8f-16-4

<em>Collect similar items</em>

-2.7f+0.8f=-1.9f

=-1.9f-16-4

<em>Subtract the numbers</em>

-16-4=-20

=-1.9f-20

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2 years ago
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3 years ago
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