# Find the height of a square pyramid that has a volume of 8 cubic feet and a base length of 2 feet. 6 feet 16 feet 12 feet 4 feet

QUESTION POSTED AT 18/01/2020 - 07:11 AM

QUESTION POSTED AT 18/01/2020 - 07:11 AM

The height is 12 feet.
The formula for volume for a pyramid is V=1/3Bh.
*the big "b" means you have to find the area of the base=4.
8=1/3×2×h
-- -----------
2 2
(3) 4=1/3×h (3)
12=h

**Answer:**

The answer is B

**Step-by-step explanation:**

ANSWERED AT 01/04/2020 - 01:48 PM

QUESTION POSTED AT 01/04/2020 - 01:48 PM

HhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhGiven:

trap door = 130 square feet.

1st item: 6ft 5in wide & 8ft 9in long

⇒ (6ft * 12 in) + 5 in & (8ft *12 in) + 9 in

⇒ 77inches by 105 inches

⇒ 8,085 square inches

2nd item: 13ft 4in wide & 7ft 8in long

⇒ (13ft * 12in)+ 4 in & (7ft *12in) + 8 in

⇒ 160 inches by 92 inches

⇒ 14,720 square inches

3rd item: 5ft 6in wide & 12ft 4in long

⇒ (5 ft * 12in) + 6 in & (12ft * 12in) + 4in

⇒ 66 inches by 148 inches

⇒ 9,768 square inches

130 square feet convert to square inches.

130 sq. ft * 144 sq.in/sq.ft = 18,720 sq. in

18,720 sq. in / 160 inches = 117 inches

Length = 160 inches ; Width = 117 inches

Perimeter = 2(160 + 117)

P = 2(277)

P = 554 inches

P = 2(277)

P = 554 inches

trap door = 130 square feet.

1st item: 6ft 5in wide & 8ft 9in long

⇒ (6ft * 12 in) + 5 in & (8ft *12 in) + 9 in

⇒ 77inches by 105 inches

⇒ 8,085 square inches

2nd item: 13ft 4in wide & 7ft 8in long

⇒ (13ft * 12in)+ 4 in & (7ft *12in) + 8 in

⇒ 160 inches by 92 inches

⇒ 14,720 square inches

3rd item: 5ft 6in wide & 12ft 4in long

⇒ (5 ft * 12in) + 6 in & (12ft * 12in) + 4in

⇒ 66 inches by 148 inches

⇒ 9,768 square inches

130 square feet convert to square inches.

130 sq. ft * 144 sq.in/sq.ft = 18,720 sq. in

18,720 sq. in / 160 inches = 117 inches

Length = 160 inches ; Width = 117 inches

Perimeter = 2(160 + 117)

P = 2(277)

P = 554 inches

P = 2(277)

P = 554 inches

ANSWERED AT 01/04/2020 - 01:48 PM

QUESTION POSTED AT 01/04/2020 - 01:48 PM

**Answer:**

The probability is 0.152

**Step-by-step explanation:**

We know that in this town 39% of all voters are Democrats. Therefore, the probability of a randomly selected voter being a Democrat is

The experiment of randomly select voters for a survey is called a Bernoulli experiment (under some suppositions). We suppose that exist independence in this randomly selection of voters. We also suppose that there are only two possibilities for the voter : It is Democrat or not.

Now the variable X : ''The randomly selected voter for a survey is Democrat'' is a Binomial random variable.

X ~ Bi (n,p)

The probability function for the BInomial random variable X is :

Where ''n'' is the number of Bernoulli experiments (In this case n = 2 because we randomly selected two voters)

P(X=x) is the probability of the variable X to assumes the value x

(nCx) is the combinatorial number define as

p = 0.39 in this exercise.

We are looking for P(X=2) ⇒

If we round to the nearest thousandth the probability is 0.152

ANSWERED AT 01/04/2020 - 01:48 PM

QUESTION POSTED AT 01/04/2020 - 01:48 PM

It's a mutha flipping dinosaur train

ANSWERED AT 01/04/2020 - 01:48 PM

QUESTION POSTED AT 01/04/2020 - 01:48 PM

Correct answer: 7-12+6x which simplifies to -5+6x

ANSWERED AT 01/04/2020 - 01:48 PM

QUESTION POSTED AT 01/04/2020 - 01:48 PM

Square root of 45 is 6.7082039325

ANSWERED AT 01/04/2020 - 01:47 PM

QUESTION POSTED AT 01/04/2020 - 01:47 PM

V = pi*(r^2)*h

V = pi*(7^2)*5

V = pi*(49)*5

V = 245pi ft^2

V = 796.7 ft^2

V = pi*(7^2)*5

V = pi*(49)*5

V = 245pi ft^2

V = 796.7 ft^2

ANSWERED AT 01/04/2020 - 01:47 PM

QUESTION POSTED AT 01/04/2020 - 01:47 PM

Answer. 42.41

Cylinder Equation: SA= 2× 3.14×r^2+2×3.14×r×h

Diameter of circle divided by 2 to get the radius =1.5

R= Radius

H=Height

Cylinder Equation: SA= 2× 3.14×r^2+2×3.14×r×h

Diameter of circle divided by 2 to get the radius =1.5

R= Radius

H=Height

ANSWERED AT 01/04/2020 - 01:46 PM

QUESTION POSTED AT 01/04/2020 - 01:46 PM

Im not sure of the answer but try quizlet

ANSWERED AT 01/04/2020 - 01:45 PM

QUESTION POSTED AT 01/04/2020 - 01:45 PM

24 diameters is the answer

ANSWERED AT 01/04/2020 - 01:45 PM

QUESTION POSTED AT 01/04/2020 - 01:45 PM

12+3x=30

Subtract 12 from both sides

3x=18

Divide by 3 both side

X=6

They can buy 6 buckets

Subtract 12 from both sides

3x=18

Divide by 3 both side

X=6

They can buy 6 buckets

ANSWERED AT 01/04/2020 - 01:44 PM

QUESTION POSTED AT 01/04/2020 - 01:44 PM

A ball is a Sphere sooooo......

And when you enter the radius.....

The answer will be about 523.6 inches

And when you enter the radius.....

The answer will be about 523.6 inches

ANSWERED AT 01/04/2020 - 01:44 PM

QUESTION POSTED AT 01/04/2020 - 01:44 PM

12 * 6 = 96

12 * 8 = 72

6 * 8 =48

96+72+48= 216 cm2

Im pretty sure, not positive though. I haven't done surface area in a while/

12 * 8 = 72

6 * 8 =48

96+72+48= 216 cm2

Im pretty sure, not positive though. I haven't done surface area in a while/

ANSWERED AT 01/04/2020 - 01:43 PM

QUESTION POSTED AT 01/04/2020 - 01:43 PM

The height i belive is 7.2

ANSWERED AT 01/04/2020 - 01:43 PM

QUESTION POSTED AT 01/04/2020 - 01:43 PM

No, this is the definition of the cosine.

The sine in a right triangle is the OPPOSITE side divided by the hypotenuse

The sine in a right triangle is the OPPOSITE side divided by the hypotenuse

ANSWERED AT 01/04/2020 - 01:43 PM

QUESTION POSTED AT 01/04/2020 - 01:43 PM

The rancher can conclude that his sheep are not proportionately spread out across the 40 acre pasture.

ANSWERED AT 01/04/2020 - 01:40 PM

QUESTION POSTED AT 01/04/2020 - 01:40 PM

The area of the triangle is 156ft.

ANSWERED AT 01/04/2020 - 01:39 PM

QUESTION POSTED AT 01/04/2020 - 01:39 PM

X = multiplication

h = height

r^2 = radius squared

Formula of a cylinder: Pi x r^2 x height

So, if 176 = 3.14... times 4^2 times h

Then, 176 = 3.14 times 16h

Next, 176 = 50.24h

Finally, 3.5 = h

You can then check your work by plugging 3.5 back in for the missing height and round to the nearest tenth. :) The answer should come out the same if done correctly.

h = height

r^2 = radius squared

Formula of a cylinder: Pi x r^2 x height

So, if 176 = 3.14... times 4^2 times h

Then, 176 = 3.14 times 16h

Next, 176 = 50.24h

Finally, 3.5 = h

You can then check your work by plugging 3.5 back in for the missing height and round to the nearest tenth. :) The answer should come out the same if done correctly.

ANSWERED AT 01/04/2020 - 01:39 PM

QUESTION POSTED AT 01/04/2020 - 01:39 PM

Well u know the area is 35 in^2 and the length is 7in. Let x = width

7x = 35

x = 35/7

Perimeter = 7(2) + 2(35/7) --> 14 + 70/7 --> 14 + 10 = 24

7x = 35

x = 35/7

Perimeter = 7(2) + 2(35/7) --> 14 + 70/7 --> 14 + 10 = 24

ANSWERED AT 01/04/2020 - 01:38 PM

QUESTION POSTED AT 01/04/2020 - 01:38 PM

Your answer would be 6/10 which reduces to 3/5.

ANSWERED AT 01/04/2020 - 01:38 PM

QUESTION POSTED AT 01/04/2020 - 01:38 PM

V=Bh

π r^2h

3.14(4)^2(15)

V= 753.6 ft^3

π r^2h

3.14(4)^2(15)

V= 753.6 ft^3

ANSWERED AT 01/04/2020 - 01:37 PM

QUESTION POSTED AT 01/04/2020 - 01:37 PM

It takes the water ballon 2 seconds to hit the ground

ANSWERED AT 01/04/2020 - 01:37 PM

QUESTION POSTED AT 01/04/2020 - 01:37 PM

It would be 60 feet because they are 60 feet apart for all the bases.

ANSWERED AT 01/04/2020 - 01:32 PM

QUESTION POSTED AT 01/04/2020 - 01:32 PM

**Answer:**

C. 2.3% on edge

**Step-by-step explanation:**

ANSWERED AT 01/04/2020 - 01:32 PM

QUESTION POSTED AT 01/04/2020 - 01:32 PM

The graph has two x-intercepts because 4x2 + 28x + 49 has two different factors.FALSEThe equation 2x + 7 = 0 can be used to find a zero of the functionTRUE.The equation (2x – 7)2 = 0 can be used to find the y-intercept.FALSEThe graph has a double root at x = .TRUEThe graph intersects the y-axis at y = 49. TRUE

ANSWERED AT 01/04/2020 - 01:30 PM

QUESTION POSTED AT 01/04/2020 - 01:30 PM

The answer would be 9 1/4.

ANSWERED AT 01/04/2020 - 01:30 PM

QUESTION POSTED AT 01/04/2020 - 01:30 PM

Lol i learned that today sorry i didn't get it either

ANSWERED AT 01/04/2020 - 01:30 PM

QUESTION POSTED AT 01/04/2020 - 01:30 PM

The height would be approximately 9 cm.

ANSWERED AT 01/04/2020 - 01:30 PM

QUESTION POSTED AT 01/04/2020 - 01:30 PM

First you'll need to find the area of each side and then add those areas together. 2(6x10)+2(4x6)+2(4x10)= 120+48+80=248

then you multiply the total area by .25 and get 62. It will cost $62.

then you multiply the total area by .25 and get 62. It will cost $62.

ANSWERED AT 01/04/2020 - 01:29 PM

QUESTION POSTED AT 01/04/2020 - 01:29 PM

$72 since the discount was $20 off, so the original price would be $52 + $20, which is $72.

ANSWERED AT 01/04/2020 - 01:28 PM

QUESTION POSTED AT 01/04/2020 - 01:28 PM