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valentina_108 [34]
3 years ago
14

40 points!! Find the length of segment ZY in the given triangle.

Mathematics
1 answer:
mixas84 [53]3 years ago
4 0

Answer:I don’t write English you should translate

Áp dụng tính chất của đường trung bình ta có:

20+x=2.(2x+22)

20+x=4x+44

X-4.x=44-20

-3.x=24

X=24/-3x=-8

Trong độ dài ko có độ âm nên tất cả đại lượng hình học đều mang dấu (+) vì vậy kết quả cuối cùng sẽ là 8

Step-by-step explanation:

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The graph shows the relationship between the total cost and the number of gift cards that Raj bought for raffle prizes.
BabaBlast [244]

<u>The problem is as following:</u>

The graph shows the relationship between the total cost and the number of gift cards that Raj bought for raffle prizes. What would be the cost for 5 of the gift cards? $80, $90, $100 Or $110

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<u>Solution</u>:

The points of the figure represents a straight line

The general form of the straight line is  ⇒ y = mx + c

where m is the slope and c is constant

let x ⇒ The number of gifts cards , y ⇒ Total cost (in $)

we will find m and c using the points (1,20) , (2,40)

The slope = m = \frac{y_{2} - y_{1}}{x_{2}-x_{1}} =\frac{40-20}{2-1} =\frac{20}{1}=20

∴ y = 20x + c

Substitute with the point (1,20) ⇒ y = 20 at x = 1

∴ 20 = 20 * 1 + c

∴ 20 = 20 + c

∴ c = 0

∴ The equation of the line ⇒⇒⇒ y = 20x

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∴ y = 20 * 5 = 100

So, the cost for 5 of the gift cards = $100

<u>The correct answer is option 3 ⇒⇒⇒ $100</u>

6 0
3 years ago
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Please help me out here
Liula [17]

Answer:

40*

Step-by-step explanation:

the whole line FC would measure 180* so then 180-50 for AGC then AGB is congruent to EGD so 180-50-90---> 130-90---> 40* so angleBGC is 40 degrees

6 0
2 years ago
Find the value of x that will make A and B parallel
Snezhnost [94]
I think x=10
4x=3x+10
subtract 3x from both sides and you get x=10
4 0
3 years ago
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