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damaskus [11]
3 years ago
6

HURRY PLEASE!!!!!

Mathematics
1 answer:
RideAnS [48]3 years ago
7 0
First we need to find the radius of the cylindrical tree trunk if the circumference C=4 feet: C=2rπ, r=4/(2π)=2/π. Now we find the volume V: V=r^2π*h, where h=20 feet is the height. So we input the numbers: V=(2/π)^2*π*20=(4/π²)*π*20. π in the nominator and the denominator cancel out: V=(4/π)*40=80/π. The volume of the cylindrical tree trunk is V=80/π feet^3
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According to the rational root theorem, the numbers below are some of the potential roots of f(x)=10x^3+29x^2-66x+27. Select all
Reil [10]

Answer:

-9/2, 3/5, 1

Step-by-step explanation:

Those are the answers on edginuity.

6 0
3 years ago
Find the missing side lengths. Leave your answer in simplest radical form
kumpel [21]
X=10 and y=5 so it's the first option
5 0
3 years ago
Read 2 more answers
What is the value of 4 x minus 7 when x = 4?
Stolb23 [73]

Answer: 9

Step-by-step explanation: Here, we have the expression <em>4x - 7</em> and we want to evaluate the expression when <em>x</em> is equal to 4.

To evaluate an expression, we simply plug the value

of the variable into the expression and solve.

So here, since <em>x</em> is equal to 4, we have 4(4) - 7.

4(4) is equal to 16.

So we have 16 - 7 which is equal to 9.

So the value of our expression when <em>x</em> is equal to 4 is 9.

6 0
2 years ago
Read 2 more answers
Which choices are solutions to the following equations x^2+8x-2=18
Olin [163]

Answer:

-4 ± 2√6

Step-by-step explanation:

Rewritten in standard quadratic form, x^2+8x-2=18 becomes x^2 + 8x - 20 = 0.

Here the quadratic coefficients are a = 1, b = 8 and c = -20 and so the discriminant is b^2 - 4ac, or 8^2 - 4(1)(-20), or 96.

Because the discriminant is positive, we know that this quadratic has two different real roots.  These roots are:

      -b ± √(b² - 4ac)

x = -------------------------

                 2a

which in this case comes out to:

       -8 ± √96          -8 ± 4√6          

x = ------------------ = ------------------- = -4 ± 2√6

             2                        2

4 0
2 years ago
A jeweler buys a ring from a jewelry maker for $115. He marks up the price 135%.
Basile [38]
Pretty sure the answer is d brodie
6 0
3 years ago
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