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Katen [24]
3 years ago
6

Tell answer of the question and show work

Mathematics
1 answer:
spayn [35]3 years ago
8 0

We know that An Isosceles Triangle has Two Equal Sides and Two Equal Angles Corresponding to those Two Equal Sides.

Given : WXY is an Isosceles Triangle :

From the Figure we can Notice that WY = XY

⇒ Angle (W) = Angle (X)

Given Angle (W) = (5x + 3)°

⇒ Angle (X) = (5x + 3)°

We know that Sum of Angles in a Triangle should be Equal to 180°

⇒ Angle (X) + Angle (Y) + Angle (W) = 180°

Given Angle (Y) = (11x - 15)°

⇒ (5x + 3)° + (11x - 15)° + (5x + 3)° = 180°

⇒ (21x - 9)° = 180°

⇒ 21x° = 189°

⇒ x° = 9°

⇒ Angle (Y) = (11x - 15)°

⇒ Angle (Y) = (11 × 9 - 15)° = (99 - 15)° = 84°

So the Measure of Angle (Y) = 84°

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erastova [34]

we do 2x-1/y=w+2/2z

2x-1/y we multiple each side y

2x-1/y×y=2x-1

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then we got

w+2

later

2x-1=w+2=

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which is 1+2=3

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I hope it's correct

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3 years ago
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It’s D it’s the last one
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for any positive integer n, the sum of the first n positive integers equals n(n 1)/2. what is the sum of all the even integers b
marusya05 [52]

The sum of all the even integers between 99 and 301 is 20200

To find the sum of even integers between 99 and 301, we will use the arithmetic progressions(AP). The even numbers can be considered as an AP with common difference 2.

In this case, the first even integer will be 100 and the last even integer will be 300.

nth term of the AP = first term + (n-1) x common difference

               ⇒    300 = 100 + (n-1) x 2

Therefore, n = (200 + 2 )/2 = 101

That is, there are 101 even integers between 99 and 301.

Sum of the 'n' terms in an AP = n/2 ( first term + last term)

                                                = 101/2 (300+100)

                                                = 20200

Thus sum of all the even integers between 99 and 301 = 20200

Learn more about arithmetic progressions at brainly.com/question/24592110

#SPJ4        

7 0
1 year ago
6z+10=-2<br><br> pls answer' <br> i willmarke brainlest
Blizzard [7]

Answer:

Step-by-step explanation: 6z=-2-10

6z= -12

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then z= -2

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2 years ago
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There are 180 students going on a class field trip. Of those students, 40% are boys. How many students on the field trip are boy
Rufina [12.5K]

Answer:72 are boys.

Step-by-step explanation:

40%of 180 is 72.

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2 years ago
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