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3 years ago

Help pls!

Mathematics

1 answer:

photoshop1234 [79]3 years ago

5 0

Answer: 1526.8 cubic inches

Step-by-step explanation: Volume = base times height.

The base of the cylinder is πr²

We can use a scientific calculator with π, or we can use 3.14 for π. the radius is 9, 9² = 81.

The Area of the base of this cylinder is about 254.46 square feet

Multiply by the height, 6 feet

We get the volume of the cylinder 1526.82 cubic inches.

Round to 1526.8 cubic feet

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For EACH ordered pair, determine if its a solution to 2x+9y=13

vladimir1956 [14]

The answer is (2,1). 2*2=4 and 9*1=9. 9+4=13

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3 years ago

What is the arc length if the radius is 12 cm?*

ladessa [460]

Answer:

4π cm

Step-by-step explanation:

The length of an arc of a circle with radius r and central angle θ is given by ...

s = rθ

where θ is in radians.

Here, your arc measures 60° = π/3 radians, so the arc length is ...

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3 years ago

What are the coordinates of the turning point for the function f(x) = (x - 1)3 - 3? A. (-1, -3)

Naddik [55]

ANSWER

The turning point is

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EXPLANATION

The function given to us is

$f(x) = (x - 1) ^{3} - 3$

At turning point,
$f '(x) = 0$

So we need to differentiate the given function and equate it to zero.

We using the chain rule of differentiation, we obtain,
$f '(x) =3 (x - 1) ^{2}$

We equate this to zero to obtain,

$3 (x - 1) ^{2} = 0$

We divide through by 3.

$(x - 1) ^{2} = 0$

We solve for x to get,

$x - 1 = 0$

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We substitute this x-value in to the function to obtain the corresponding y-value of the turning point.

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$f(1) = 0 - 3$

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Therefore the turning point is

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C is the correct answer.

6 0

3 years ago

Read 2 more answers

Slove the following equation for number x. verify tht your solution is correct 3/4(x+8) =9

Tanya [424]

3/4 (x+8)=9
3/4x+6=9
-6
3/4x=3
X=4
Check
3/4(4+8)=9
3/4 (12)=9
9=9

3 0

3 years ago

You roll a pair of six-sided number cubes, numbered 1 through 6. What is the probability of rolling two odd numbers? (Enter your

lbvjy [14]

Answer:

1/4 or 25%

Step-by-step explanation:

The probability for rolling an odd number is 50% or $\frac{1}{2}$ because there are 3 odd numbers, (1, 3, 5) and 6 total outcomes (1, 2, 3, 4, 5, 6). $\frac{3}{6} =\frac{1}{2}$

The probability for rolling two odd numbers in a row is

$\frac{1}{2} *\frac{1}{2} =\frac{1}{4}$

So, the probability of rolling an odd number twice is 25% or $\frac{1}{4}$ .

8 0

3 years ago