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3 years ago

I need answers anyone help

Mathematics

1 answer:

GalinKa [24]3 years ago

7 0

First one single solution second no solution 3rd one single forth one infinity and last 2 are single and infinity

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Consider the following pair of equations:

Mariana [72]

Hellooo..
my answer is (-4,2)

8 0

3 years ago

A silo is a composite of a cylindrical tower with a cone for a roof. Find the volume of the silo if the

xxMikexx [17]

Answer:

5127079.21 cubic feet

Step-by-step explanation:

The silo is in the shape of a cylinder and a cone.

The volume of the silo will be the sum of the volumes of the cylinder and the cone.

Therefore, its volume is:

$V = \pi r^2h + \frac{1}{3} \pi rH$

where r = radius of cylinder and cone

h = height of cylinder

H = height of cone

The radius of the base is 120 feet, the height of the roof (cone) is 25 feet. The height of the entire silo is 130 feet. This means that the height of the cylinder is:

130 - 25 = 105 feet

Therefore, the volume of the silo is:

$V = (\pi * 120^2 * 105) + (\frac{1}{3} * 120^2 * 25)\\\\V = 4750088.09 + 376991.12\\\\V = 5127079.21 ft^3$

The volume of the silo is 5127079.21 cubic feet.

3 0

2 years ago

Please help me answer number 4! And if you can, please explain!

Leno4ka [110]

If Nathan does 9 minutes of push ups for 3 days, that's 9 divided by 3, which is 3. (9/3=3) So nathan does 3 minutes of push ups each day, so just multiply each day by 3 to find the correlation between the two.

The Table should look like this:

# of days # of Minutes
1 3
2 6
3 9
4 12
5 15
6 18
7 21

5 0

2 years ago

Plz help i need this soon

wlad13 [49]

Answer:

b= (m)(-150)

Step-by-step explanation:

1800-1350 = 450

450/3 = 150

b= m*-150

7 0

3 years ago

Without using trignometery tables find value of , cos70/sin20+cos57.cosec33 - 2cos60

Helen [10]

Here is some thoughts on this:

cos 57 = sin (90-57) = sin 33

so cos 57 . cosec 33 = cos 57 / sin 33 = sin 33 / sin33 = 1

2 cos 60 = 2 * 1/2 = 1

so the last 2 parts work out to 0

now we have to find cos 70 / sin 20

sin 20 = cos 70 so this comes to 1

so finally the answer is 1

4 0

3 years ago