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4 years ago

Hey(: can somebody please help me with this question please !

Mathematics

1 answer:

s344n2d4d5 [400]4 years ago

6 0

The volume of a cone is 1/3 pi r^2 h. So by substitution, V = 1/3 of 80pi which simplifies to V=26.667pi, which when multiplied out, provides the answer V = 83.8 cubic meters.

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NEED HELP ASAP algebra 2

Marina CMI [18]

Answer:

b = sqrt(39)

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2+b^2 = c^2

5^2 + b^2 = 8^2

25+b^2 =64

b^2 =64-25

b^2 =39

Take the square root of each side

b = sqrt(39)

7 0

4 years ago

Read 2 more answers

Find the ratio of the perimeter of the larger rectangle to the perimeter of the smaller rectangle.

nevsk [136]

The correct answer is 5/3 .

7 0

4 years ago

It has rained 3/5 inch in 1/4 hour. If it continues to rain at the same rate,how much rain would fall in an hour

Scorpion4ik [409]

Answer:

2 2/5 inches

Step-by-step explanation:

3/5 x 4

3/5 x 4/1

3/5 x 4/1 = 12/5

12/5 = 2 2/5

5 0

3 years ago

How many, and what type of solutions, does3x2−x−5=0 have?

siniylev [52]

Answer:

2 irrational solutions

Step-by-step explanation:

using the quadratic formula:

$\frac{ -b \:± \sqrt{b {}^{2} - 4ac } }{2a}$

3x²−x−5=0

where a = 3, b = -1 and c = -5, plug in those values in the quadratic formula

$\frac{ - ( - 1)±\sqrt{(1) {}^{2} - 4(3)( - 5) } }{2(3)}$

you get two solutions:

$\frac{1 + \sqrt{61} }{6} \: and \: \frac{1 - \sqrt{61} }{6}$

both can be written as:

$\frac{1± \sqrt{61} }{6}$

They are irrational as they cannot be written in the form p/q where p and q are whole numbers (integers)

8 0

3 years ago

I NEED HELP ASAP PLEASE HELP ASAP

Marina CMI [18]

Answer:

You would do 2.75*S (for the stops) then you divide your product by 21 (for the $21) and then you add 5 to the quotient. After you add it’s your answer.

Hope this helps!!!

6 0

4 years ago