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3 years ago

Find the volume of the cone.

Mathematics

1 answer:

frez [133]3 years ago

7 0

Find the volume of a cone with a diameter of 20m and a slant height of 26m.

Volume Formula of a Cone: V = pi(radius^2)(h/3)

Diameter: 20m

Slant Height (Height): 26m

Plug it in:

V = 3.14(10^2)(26/3)

V = 314(26/3)

Solve:

V = 314(0.87)

V = 273.18

Volume = 273.18

Round:

Volume = 273m^3

The volume of the cone is 273m^3 to the nearest whole number.

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What is the slope of the line of best fit?

Ierofanga [76]

Step-by-step explanation:

The line passes through the origin and point (30,3)

so, slope of the graph( miles per minute)= 3/30 = 1/10 miles per minute

Or, slope of the graph miles per hour

$= \frac{3}{ \frac{30}{60} } = \frac{3 \times 60}{30} = 6$

option B

7 0

3 years ago

C. A 40-foot ladder reaches 38 feet up the side of a house. How far from the base of the

Svet_ta [14]

Answer: 12.48

Step-by-step explanation:

38x38+bxb=40x40

1444+b=1600

1600-1444=156

$\sqrt156$ =12.48

4 0

2 years ago

I really need help quick

Natali [406]

Answer:

$\sf x=2+\sqrt{6},\:x=2-\sqrt{6}$

Explanation:

$\sf y = x^2 -4x$

given that y = 2

$\sf x^2 -4x = 2$

$\sf x^2 -4x -2 = 0$

using quadratic formula:

$\sf x = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{2a} \ \ \ when \ ax^2 + bx + c = 0$

$\rightarrow \sf x_{1,\:2}=\dfrac{-\left(-4\right)\pm \sqrt{\left(-4\right)^2-4\cdot \:1\cdot \left(-2\right)}}{2\cdot \:1}$

$\rightarrow \sf x_1=\dfrac{-\left(-4\right)+2\sqrt{6}}{2\cdot \:1},\:x_2=\dfrac{-\left(-4\right)-2\sqrt{6}}{2\cdot \:1}$

$\rightarrow \sf x=2+\sqrt{6},\:x=2-\sqrt{6}$

in decimals:

$\rightarrow \sf x=4.45 , \ -0.45$

5 0

2 years ago

Four glasses of milk and 3 snack bars have a total of 74 carbohydrates (carbs), and 3 glasses of milk and 4 snack bars have a to

Korvikt [17]

Answer: Snack=10carbs. Milk=11carbs

Step-by-step explanation:

(4x11)+(3x10)= 74

(3x11)+(4x10)= 73

6 0

3 years ago

I'll give 20 p to whoever answers 10-16 :D

BartSMP [9]

This is so easy. You should try before posting a question on this site. No offense.

Having said that im still here to help :)

10. 4,2 -3,5
11. Sorry dont know this one
12. Plot a point at -3,-4 label is Resturant
13. Plot a point at 0,-3 label it Beth

I will only post these ones, The others are extremely simple.

6 0

3 years ago