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Paladinen [302]
3 years ago
14

Y2 - 100 someone help me with this

Mathematics
1 answer:
fredd [130]3 years ago
8 0

Answer:

(y+10)(y-10)

Step-by-step explanation:

Find two numbers that when they multiply, you get the third term,

which is -100 in this problem. And when you add up, you get the second term,

which is 0 in this problem.

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The rectangles shown below are similar.
Zolol [24]

Answer:

The scale factor is 2.5

5 0
3 years ago
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three sets of a sum of a number and four are added to the sum of seven times the same number and thirteen
Marianna [84]

Answer:

Let x be the number.

Given the statement: Three sets of a sum of a number and four are added to the sum of seven times the same number and thirteen.

" sum of a number and four" translated to x + 4

"Three sets of a sum of a number and four" translated to 3(x+4)

"sum of seven times the same number and thirteen" translated to 7x + 13

then;

the expression for the given statement become;

3(x+4) + 7x + 13

Using distributive property: a\cdot (b+c) = a\cdot b + a\cdot c

3x +12 + 7x+ 13

Combine like terms;

10x + 25

Therefore, the simplified expression for Three sets of a sum of a number and four are added to the sum of seven times the same number and thirteen. is,  10x + 25

7 0
4 years ago
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WILL GIVE BRAINLIEST, SUPERB RATING, AND THANKS!
rosijanka [135]

Congruent triangles are exactly the same, meaning they have the same side length, and thus same angles. Everything is exactly the same, as easy as it gets :)


So, you can compare the two pictures to get the informations you need:


x = 90^\circ, since it is a right angle


y = 38^\circ, as we can see on the right by comparison


w = 52^\circ. In fact, the angles of a triangle sum to 180^\circ, so we have x+y+w = 90+38+w = 128+w = 180. So, w = 180-128 = 52


v = 7.9yd, as we can see on the left by comparison.


Finally, we can compute z using the Pythagorean theorem:


z = \sqrt{u^2+v^2} = \sqrt(6.2^2+7.9^2) \approx 10

5 0
4 years ago
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Does anybody know what 3/5 of 7 3/4 is?? If so, please give me the method and solve. Thank you. :)
-Dominant- [34]
The word “of” automatically mean multiplication. So start by making 7 3/4 into an improper fraction: 31/4. Then multiple 3/4 by 31/4. You should get 93/20, or 4 13/20.
7 0
4 years ago
How are polygons similar
Burka [1]

Answer:

They all have equal sides

Step-by-step explanation:

Hope this helps :))

3 0
3 years ago
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