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slavikrds [6]
3 years ago
12

Determine the area of a cone that its volume is 238 cubic centimeters and the height is 74 centimeters.

Mathematics
1 answer:
Galina-37 [17]3 years ago
4 0

Answer:

1.75 cm

Step-by-step explanation:

The volume of a cone is 238  with height 74. To find the radius, substitute and solve for r.

[tex]V= \frac{1}{3}\pi r^2 h\\ 238= \frac{1}{3} \pi (r^2)(74) \\ 238*3= \pi (r^2)(74)\\ \frac{714}{74\pi} = r^2\\\sqrt{\frac{714}{232.36} } =r\\ 1.75=r[/tex].

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Choose the best description for the real number 34 over 3 . (4 points)
allochka39001 [22]

<em>Hello!</em>

<h3><em>The answer is actually </em><u>C </u><em>because irrational numbers cannot be written as a simple fraction.</em></h3>

<em>The other options are also incorrect because of the fact 34/5 is a fraction, not a decimal.</em>

<em>Notice the question says "because it is a _____" </em>

That is where you need to be careful !

<em>It is a fraction, not a decimal, it is also rational, not irrational.</em>

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<em>Hopes this helps whoever is reading this ! (✿◠‿◠) </em>

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8 0
4 years ago
Read 2 more answers
The equation 125 + 37.52x = y models the amount of money in your wallet Y is the total amount of dollars and x is the number of
Slav-nsk [51]

The given equation is 125+37.52x=y, where y is the total amount of dollars and x is the number of weeks

This equation can be re-write as y=37.52x+125

Yes, this equation is in slope-intercept form y=mx+c having a slope, m=37.52 and the intercept, c=125.

Now, check the units,

In equation y=mx+c, units of all the three terms, i.e y, mx and c, are same.

As given that unit of y is dollar, so the unit of c is dollar and unit of mx is also dollar.

As the unit of mx is dollar, so the unit of m is dollar/unit of x.

As given that the unit of x is week, so the unit of m is dollar/week.

Therefore, the y-intercept, c= 125 dollars, and m=37.52 dollar/week.

The unit of the slope is dollars/week, so, the slope of the equation represents the rate of change of money in the wallet per week.

From the graph of the equation, y-intercept, c=125 dollars, is the value of y at x=0 which is the initial amount of money in the wallet.

4 0
3 years ago
Can anyone help me with these questions
expeople1 [14]

Answer:

1. 31.14

2. 46

Step-by-step explanation:

1. Using order of operations, we first simplify what's in the parentheses, so we do 4.1-(-6.2), or 4.1+6.2. This gives us -5+3.8(10.3). Next is multiplication, so we do 3.8(10.3), which gets us to -5+39.14. Lastly, we add, to get 31.14.

2. First, we solve in the parentheses. Within the parentheses, we do multiplication first, so we first do 3*-2, to get us 8-4(-6+(-13))÷2. Then, we solve inside the parentheses, so we do -6+(-13), to get 8-4(-19) ÷2.

Next, since multiplication and division are on the same level, we go from left to right, so we do -4*-19 first, to get 8+76÷2. Now we do division, to get 8+38. Lastly, we add, to get 46.

7 0
3 years ago
Read 2 more answers
.
Rudik [331]

Answer:

- 3.75

Step-by-step explanation:

I took a test and this was the right answer lol

5 0
3 years ago
I will mark brainiest is my answer is correct?
Alex Ar [27]
Your answer is correct
5 0
3 years ago
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