John is trying to determine the length of the staircase he will need for a deck that is 12 feet high he wants to start the stairs 21 feet from the deck

Answers

Answer 1

Answer: right triangle
legs are 21 and 12

a^2+b^2=c^2
12^2+21^2=c^2
144+441=c^2
585=c^2
sqrt both sides
5√65=c
aprox
24.1868=c

about 24.2 feet

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2. Name the three-dimensional figure shown in the picture. (1 point)O triangular prism
O square prism
O square pyramid
O cone

Answers

The solution is Option C.

The figure represents a square pyramid

What is the surface area of the pyramid?

The total surface area is the summation of the areas of the base and the three other sides. A = B + ( 1/2 ) ( P x h ), where B is the area of the base of the pyramid, P is the perimeter of the base, and h is the slant height of the pyramid

Surface Area of Pyramid = B + ( 1/2 ) ( P x h )

Volume of Pyramid = ( 1/3 )a²H

where B is the area of the base of the pyramid, and h is its height.

Given data ,

Let the figure be represented as A

Now , the figure A is not a triangular prism as the base of the prism is not a triangle

And , the figure A is not a square prism as the top of the prism is not a square

Furthermore , the figure A is a square pyramid as the base of the pyramid is a square

And , it is not a cone because the base is not circular in shape

Hence , the figure is a square pyramid

To learn more about surface area of pyramid click :

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Where is the picture???

Carla wants to know how many batches of birdseed she can make with 1/2 cup of sunflower seeds she puts 1/6 cup of sunflower seeds in each batch carla divides 1/2 by 1/6 to find the answer she says this is the same as multiplying 1/6 by 2 explain what carla did wrong

Answers

Answer:

6/2

Step-by-step explanation:

1/2 divided by 1/6

FLIP

1/2 multiplyed by 6/1 =6/2=3

a bottle contains 20 fluid ounces of lotion and sells for $5.80. The 20-fluid-ounce bottle contains 125% of the lotion in the next smallest size, which sells for $5.12. Which is the better buy? Explain

Answers

here is a way to solve wihtout knowning the volume of the smaller bottle (which is 16oz, btw)

if 5.8 is 125% of the volume of the other one
find what it would cost for 100%
5.8=125% of volume
1.16=25% of volume
4.64

that contains the sameamount as theother one

4.64<5.12

the 20 oz bottle is the better buy

don't believe me?

20=125% of other
4=25% of other
16=100% of other

let's find the cost per ounce of lotion
5.8/20?5.12/16 where ? represents a relation symbol (=,> <)
0.29?0.32
0.29<0.32

20 oz bottle is the better buy

the 20 fluid ounce because you get more for .78 cents more

I need help! With whole sheet

Answers

Answer:

Question 1

Area = Length x Width

Width = Area / Length

25/54 / 5/9

This is the same as:

25/54 x 9/5

225/270 is your answer

this can simplify to 5/6

Question 2

5/12 x 5/6 =

find common denominator

5/12 x 10/12 = 15/12 = 1 1/4 ft.

12.54 greater than less than or equal to 1.254

Answers

12.54 Is greater than 1.254

12.54 > 1.254

12.54 is greater than 1.254

95 is 95% of what number?

Answers

95% * x = 95

95/100 * x = 95

0,95 * x = 95

0,95x = 95 / : 0,95

x = 100

Answer:

95 is 95% of 100

Step-by-step explanation:

95/95%

= (95/95)*100

= 1*100

=100

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