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Elenna [48]
3 years ago
11

Urgent Please Help Me!!!!!!!!!!!!

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
8 0

Answer:

If use the area of the frame the area of the photo will be included

Area of frame = (22 + 2 x) * (20 + 2 x) = A

440 + 2 x ( 20 + 22) + 4 x^2 = A

A = 4 x^2 + 84 X + 440

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Cookies are sold singly or in packages of 3 or 9. With this​ packaging, how many ways can you buy 18 cookies?
8_murik_8 [283]
3 : 3 times 6 is 18, 2 times 9 is 18 and 3 times 3 is 9 plus 9 is 18
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Answer so I can past one of my test
stiks02 [169]

Answer: D

take 5/15 and simplify to 3/1

7 0
3 years ago
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a traveler has 7 pieces of luggage . how many ways can the traveler select 3 pieces of luggage for a trip
7nadin3 [17]
Well, you could assign a letter to each piece of luggage like so...

A, B, C, D, E, F, G

What you could then do is set it against a table (a configuration table to be precise) with the same letters, and repeat the process again. If the order of these pieces of luggage also has to be taken into account, you'll end up with more configurations.

My answer and workings are below...

35 arrangements without order taken into consideration, because there are 35 ways in which to select 3 objects from the 7 objects.

210 arrangements (35 x 6) when order is taken into consideration.

*There are 6 ways to configure 3 letters.

Alternative way to solve the problem...

Produce Pascal's triangle. If you want to know how many ways in which you can choose 3 objects from 7, select (7 3) in Pascal's triangle which is equal to 35. Now, there are 6 ways in which to configure 3 objects if you are concerned about order.

7 0
3 years ago
Find the equation of the line that passes through (-1,-3) and is perpendicular to
miv72 [106K]

Answer:

y = -2x - 5

Step-by-step explanation:

2y = x - 3

y = 1/2x - 3/2

gradient = 1/2

perpendicular gradient = negative reciprocal = -2

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(-3) = -2(-1) + c

-3 = 2 + c

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3 0
2 years ago
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Fittoniya [83]

Answer:

x = ± 2

Step-by-step explanation:

Given

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0 = 2x² - 8 ( add 8 to both sides )

8 = 2x² ( divide both sides by 2 )

4 = x² ( take the square root of both sides )

x = ± \sqrt{4} = ± 2

6 0
3 years ago
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