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labwork [276]
3 years ago
12

What is the volume of this figure?

Mathematics
1 answer:
Olenka [21]3 years ago
5 0
The formula for the volume of a cone is 1/3\pir²h, where r is the radius and h is the height.

Insert the values into the equation:

1/3\pi(5)²(11) ≈ 287.979327 (use a calculator for this part)

Divide 287.979327 by \pi and convert the decimal to a fraction:

91.66666666666666666666666666666666666666... = 91 2/3

The volume of the figure is 91 2/3\pi cubic units or units³.
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Sean is learning to scuba dive. The equation D = 20L + 15 represents the depth he can dive in feet, D, based on the number of le
Stels [109]

Answer:

Sean can dive 275 feet after he takes 13 lessons.

Step-by-step explanation:

Since L means the number of lessons taken, we will have:

D = 20*13 + 15

D = 260 +15

D = 275

4 0
3 years ago
Find the zeros of y=x^2-6x-4
Evgen [1.6K]
X=3+√13, 3-√13

substitute y for 0 and solve for x
4 0
3 years ago
2+6i/2-4i = a + bi What is the value of a? What is the value of b?
Talja [164]

\dfrac{2+6i}{2-4i}\\\\\\=\dfrac{2(1+3i)}{2(1-2i)}\\\\\\=\dfrac{1+3i}{1-2i}\\\\\\=\dfrac{(1+3i)(1+2i)}{(1-2i)(1+2i)}\\\\\\=\dfrac{1+2i+3i+6i^2}{1-(2i)^2}\\\\\\=\dfrac{1+5i-6}{1+4}~~~~;[i^2=-1]\\\\\\=\dfrac{5i-5}{5}\\\\\\=\dfrac{5(i-1)}5\\\\=i-1\\\\=-1+i\\\\\text{It is in a form of a +bi so,}~ a = -1~ \text{and}~ b = 1

6 0
3 years ago
Will, Mike, and Sue went to dinner. Will paid 1/3 of the dinner bill. Micah and Sue paid in the ratio 2:3. If Sue paid $6 more t
raketka [301]
Let's call their parts w,m and s

if will paid 1/3, then m+s=2w (they paid 2/3, which is twice as much as will did)

Now, we know that:
Micah and Sue paid in the ratio 2:3.
this means the 3m=2s

and m=2/3s

Again:
m+s=2w

and we substitute m:
2/3s+s=2w
5/3s=2w// multiply both sides by 3
5s=6w

we also know that s=w+6 (from the last sentence) so we substitute:

5(w+6)=6w
5w+30=6w
30=w

so, Will paid 30, Sue paid 36 (six more than him), Mike paid 24 (24:36 is the same ratio as 2:3, you can check this by dividing both 24 and 36 by 12: you have 2 and 3)

and the total was 30+36+24=90.





3 0
3 years ago
BRAINLIEST PLZ JACOB HELP MEE
Viktor [21]
It’s 13 and 15 you felllmeeyebebenr
8 0
2 years ago
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