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faust18 [17]
3 years ago
5

What is the value of x in the equation -%y = 30, when y = 15?

Mathematics
1 answer:
bonufazy [111]3 years ago
4 0

Answer:

x not given

therefore no answer for x

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A bird seed feeder has the approximate shape of a cone with a diameter of 12 centimeters and a height of 25.5 centimeters. What
timurjin [86]
The equation for the volume of a cone is: 
V= \frac{1}{3}  \pi r^{2} h
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You are told that the height, h = 25.5 cm. You are also told that the diameter is <span>12 centimeters. Remember that the diameter of a circle is just twice the radius. Divide 12 by 2 to get the radius: r =12/2 = 6 cm.

Since you know </span>h = 25.5 cm and r = 6 cm, plug these values into your equation for volume of a cone and solve for V, volume:
V= \frac{1}{3} \pi r^{2} h\\&#10;V= \frac{1}{3} \pi (6) ^{2} (25.5)\\&#10;V \approx 961.33

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Answer: B) <span>961.33 cm³ </span>
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3 years ago
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Write a recursive rule and an explicit rule for each arithmetic sequence.
I am Lyosha [343]
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6 0
3 years ago
The product of the square of a number x and 2 subtracted from 3 is y.
lozanna [386]

The algebraic expression for the given statement is: 2x² - 3 = y.

<h3>How to Write an Algebraic Expression?</h3>

To wrote an algebraic expression is translate a statement using numbers, variables, and mathematical sign into a mathematical statement.

Square of x is: x²

Product of x² and 2 is: 2x²

Thus, we would have:

2x² - 3 = y

The algebraic expression is: 2x² - 3 = y.

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5 0
2 years ago
K+(-5)=-4 solve each equation
Otrada [13]

Answer:

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Step-by-step explanation:

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Veseljchak [2.6K]

Answer:

a) 46.98%

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Step-by-step explanation:

In year 1987, investment worth $29800

In year 1997, investment worth $43800

Rate of change = 1997investment - 1987investment / 1987investment × 100

Rate of change = 43800 - 29800/29800 × 100

= 14000/29800 × 100

= 0.46979 × 100

= 46.98%

Therefore, the rate of change of the investment during the time period is 46.98%.

b) The rate of change of the investment is increasing. This is as a result of the following reasons. First, the value of rate of change is positive. Second, there is no value for rate of change for period before the time period so we cannot compare rate of change.

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