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ozzi
3 years ago
11

Please help me. It's urgent​

Mathematics
1 answer:
siniylev [52]3 years ago
5 0

Answer:

a) 7/5

Step-by-step explanation:

y-\frac{y-1}{2}=1-\frac{y-2}{3}  \\Through\ the\ butterfly\ method\ of\ resolving\ denominators\ ,\\\frac{2y-(y-1)}{2} = \frac{3-(y-2)}{3} \\\frac{2y-y+1}{2} = \frac{3-y+2}{3} \\\frac{y+1}{2} =\frac{5-y}{3} \\3(y+1)=2(5-y)\\3y+3=10-2y\\3y+2y=10-3\\5y=7\\y=\frac{7}{5}

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One of the sides of an equilateral triangle is 32. What is the height of the triangle? Round to 2 decimal places.
Ilya [14]
So because it's an equilateral triangle, you can cut the triangle in half and make a right triangle with a hypotenuse of 32. The bottom of the triangle would be half of 32, which is 16, because you cut the triangle in half. Now you can use the pythagorean theorem to solve for the height.

16^{2} +b^{2} =32^{2}

The answer is whatever b is:

b = \sqrt{ 32^{2} - 16^{2}

So your answer is 27.713.
7 0
3 years ago
Simplify x to the 5th over x to the 4th
Maru [420]

Answer:

x

Step-by-step explanation:

x^5

---------

x^4

When we divide exponents with the same base, we can subtract the exponents

x^(5-4)

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x

7 0
3 years ago
Can someone plz help me? <3
OverLord2011 [107]

Answer:

C - 52

Step-by-step explanation:

z = 12 x = 2

(You do indices first!)

2 x 2 x 2 = 8

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12 + 40 = 52

I hope this helps, have a good day! :D

5 0
2 years ago
Convert these improper fractions into mixed numbers.<br> 5/4
tekilochka [14]

Answer:

1 1/4

Step-by-step explanation:

4/4 + 1/4 = 5/4

4/4 = 1

so 1 1/4

4 0
2 years ago
Read 2 more answers
Zohar is using scissors to cut a rectangle with a length of 5x - 2 and a width of 3x + 1 out of a larger piece of paper. Which
kirza4 [7]

Answer:

2*(5x - 2) + 2*(3x+1) ; Perimeter = 62 centimeters

Step-by-step explanation:

2*(5x - 2) + 2*(3x+1) = 10x - 4 + 6x + 2

                                = 16x -2

If x = 4 , then Perimeter = 16*4 - 2 = 64 - 2 = 62 cm

4 0
3 years ago
Read 2 more answers
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