Ask question

Ask question

All categories

3 years ago

15

A Norman window is a window with a semi-circle on top of regular rectangular window. What should be the dimensions of the rectan

gular part of the norman window to allow in as much light as possible, if there are only 12 ft of the frame material.

1 answer:

ira [324]3 years ago

8 0

Answer:

the answer is 12 feet

Step-by-step explanation:

You might be interested in

The Great Pyramid in Giza, Egypt, is a square pyramid. The dimensions of the pyramid at the time of its completion are shown in

Ann [662]

Hey there look like you need some help.
If I give you the correct answer mark me brainleist

First you would find the area of the square: 230*230= 52,900Next you would find the area of one on the triangles: 230*187=43,010 * 1/2= 21,505Then you would multiply the area of the one triangle by four: 21,505*4= 86,020Finally, you would add the area of the square to the combined area of the triangles: 86,020+ 52,900=138,920

7 0

3 years ago

Find four numbers that are evenly divisible by both 2 and 9

Hatshy [7]

Answer:

18

36

72

144

Step-by-step explanation:

For numbers to be divisible by 2 they must end in an even number

For numbers to be divisible by 9 the sum of the digits must be divisible by 9

3 0

2 years ago

118 + 560 is the same as<br> 100 +

Fed [463]

Answer:

578

Step-by-step explanation:

118

+560

answer:678

678-100=578

6 0

3 years ago

Read 2 more answers

On monday, it took helen 3 hours to do a page of homework. the next day she did the same number of exercises in 2 hours. if her

g100num [7]

The average rate is the number of equations divided by the time to do them.

The number of equations is the rate multiplied by the time.

On Monday, the number of equations is
.. number = rate*time = P*3
On Tuesday, the rate is
.. rate = number/time = (3P)/2 . . . . . Helen's average rate on Tuesday

5 0

3 years ago

A swim team must be chosen from 12 candidates. What is the greatest number of different 3-person teams that can be chosen?

grin007 [14]

<h3>Answer: 220 combinations</h3>

==========================================

Explanation:

We have 12*11*10 = 1320 permutations possible. This is where order matters. However, order does not matter with swim teams as there are no positions or ranks. All that matters is the group overall (rather than any individual in the group).

Consider the set {A,B,C}. We have 3*2*1 = 6 ways to arrange this set of letters. When considering a permutation, there are 6 permutations but only 1 combination since order doesnt matter and ABC is the same as BAC. Therefore, we divide 1320 over 6 to get the final answer of 1320/6 = 220.

---------

You can use the combination formula with n = 12 and r = 3. Doing so will give the following:

$_n C _r = \frac{n!}{r!*(n-r)!}\\\\_{12} C _3 = \frac{12!}{3!*(12-3)!}\\\\_{12} C _3 = \frac{12!}{3!*9!}\\\\_{12} C _3 = \frac{12*11*10*9!}{3!*9!}\\\\_{12} C _3 = \frac{12*11*10}{3!}\\\\_{12} C _3 = \frac{12*11*10}{3*2*1}\\\\_{12} C _3 = \frac{1320}{6}\\\\_{12} C _3 = 220\\\\$

As you can see, we get the same result and note how 1320/6 is also present as well.

8 0

3 years ago

Read 2 more answers