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Tresset [83]
3 years ago
15

Giving brainliest!! pls help asap *easy*

Mathematics
1 answer:
Scrat [10]3 years ago
8 0

Answer:

V ≈ 16.333 in³

Step-by-step explanation:

Formula of the Volume of a Sphere: \frac{4}{3} \pi r^{2}

V = \frac{4}{3} × (3.5)²π

V = \frac{4}{3} × 12.25π

V ≈ 16.333 in³

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If z=3−5i, find |z|.
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Answer:

Step-by-step explanation:

The absolute value of z is the distance between the point graphed from the complex number and the origin on a complex plane.  In a complex plane, the x axis is replaced by R, real numbers, and the y axis is replaced by i, the complex part of the complex number.  Our real number is positive 3 and the complex number is -5, so we go to the right 3 and then down 5 and make a point.  Connect that point to the origin and then connect the point to the x axis at 3 to construct a right triangle that has a base of 3 and a length of -5.  To find the distance of the point to the origin is to find the length of the hypotenuse of that right triangle using Pythagorean's Theorem.  Therefore:

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5 0
3 years ago
Set up the equation to find the AREA of the SMALL rectangle with a length of (x) and width (x+7)
Igoryamba

<u>Answer:</u>

<h3>( x ) x ( x + 7 ) </h3>

<u>Step-by-step explanation:</u>

To find the area of a rectangle, we have to multiply the length with the width.

In the question, the given length is 'x' and the width given is 'x +7'

So, the area would be

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So, the equation to find the area of such a rectangle would be:-

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3 years ago
Liam invests $5,000 in an account that pays 2.5% compound interest annually. He uses the expression P(1+r)t to find the total va
Zanzabum
<span>Total = Principal × ( 1 + Rate )^years
</span>
Total = 5,000 * (1.025)^3
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Source:
http://www.1728.org/compint.htm




6 0
3 years ago
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