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3 years ago

What is the solution? Please show your work. 12x-7y=59 8x+11y=-39

Mathematics

1 answer:

abruzzese [7]3 years ago

4 0

7 /12 y+ 59/ 12

Step-by-step explanation:

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A cone has a diameter of 3 inches. The cone holds 12 cubic inches of water. To the nearest inch, what is the height of the cone?

Cerrena [4.2K]

Use the equation for the volume of a cone to solve for the height:
$V= \frac{1}{3} \pi r^{2}h \\
12= \frac{1}{3} \pi *2.25h \\
h=5.096 inches$

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3 years ago

Geometry Surface area and volume

Zigmanuir [339]

Answer:

$volume=558.9$

Step-by-step explanation:

find the volume of the cone and the hemisphere and add them together

cone:

$Vcone=\pi r^{2} \frac{h}{3} \\\\V=\pi (5.3)^2(\frac{8.4}{3} )\\V=\pi (28.09)(2.8)\\V=247.09\pi \\V=247.1$

hemisphere:

$Vhemisphere=\frac{2\pi r^3}{3} \\V=\frac{2\pi (5.3)^3}{3} \\V=\frac{2\pi (148.877)}{3} \\V=\frac{297.754\pi }{3} \\V=\frac{935.421}{3}\\ V=311.8$

add the volumes together:

$Vol=247.1+311.8\\Vol=558.9$

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2 years ago

describe what would be true about the rate of change in a situation that could be represented by a graphed line and an equation

Andru [333]

If y=mx+b,

$\frac { dy }{ dx } =m$

You can't differentiate a constant, so dy/dx=m.

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4 years ago

Please Help! Confusing math question for College Algebra!!!!

ArbitrLikvidat [17]

Answer:

Ah Yes I was wondering what would break first

Your spirit

or you body

Step-by-step explanation:

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3 years ago

Draw a diagram that shows 1/5 times 30 equals 6

MrMuchimi

Total number = 30

1/5 of 30 = 1/5 x 30 = 6

The attached figures show the total number of filled circles in five lines. Each line have “6” filled circles.

So 5 lines having 6 filled circles = 5 x 6 = 30

Every line represents “1/5” of total amount “30”. Which proved that 1/5 of 30 is equal to 6.

3 0

3 years ago

Read 2 more answers