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Zina [86]
3 years ago
15

Can I get some help on 17),18

Mathematics
1 answer:
natka813 [3]3 years ago
3 0
17) you need to use the distance formula. the answer would be 146 (under a radical) or approximately 12.083

18) i’m pretty sure you’d use the side angle side (SAS) rule.
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A rectangle with an area of 4/7 meters squared is dilated by a factor of 7. What is the area of the dilated rectangle?
nikklg [1K]

Answer:

49

Step-by-step explanation:

Every time you multiply both sides of a rectangle by a number x, its area if multiplied by x^{2}.

In our example:

Area of a rectangle = width . length

width = 4

length   = 7

A_{1} = 4 . 7 = 28

When you multiply both sides by 7:

width = 4 . 7 = 28

length = 7 . 7 = 49

A_{2}  = 28 . 49

A_{2}  = 1372

A_{2}  / A_{1} = 1372 / 28 = 49 = (7)^{2}

Both sides multiplied by 7 => Area multiplied by 7^{2}

Got it?

;-)

7 0
3 years ago
Nina’s sister has 386 stickers that she wants to put in a book. Each page can hold 42 stickers. How many pages will she need? Ex
kap26 [50]

Answer:

10 pages

Step-by-step explanation:

386/42=9.1 pages

but you can not have .1 of a page so you add another page.

5 0
2 years ago
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Veronika [31]

Answer:

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Step-by-step explanation:

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3 years ago
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Please help me with math
Vsevolod [243]

You need to replace the coordinates given after dilating them or stretching the parabola.

8 0
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5x+7y=10 into slope form
marysya [2.9K]
The answer is y=10/7-5/7x, subtract the 5x and put it on the other side then divide the 7 from the y and divide it to 10-5x to get the answer.
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3 years ago
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