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miv72 [106K]
3 years ago
11

Im doing a test so if i stop i have no more points

Mathematics
1 answer:
OverLord2011 [107]3 years ago
5 0

Answer:

1true 2tre3false tenciu

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1.Parallelogram ACFD is split in two parts so that ABED and FEBC are congruent isosceles trapezoids. What are the measures of al
DiKsa [7]
Refer to the diagram shown below.

Because ACFD is a parallelogram, its opposite angles are equal. Therefore
x = m∠ACF = m∠BCF = 48°  
Similarly,
y = m∠CAD = m∠CFD 

The sum of the angles inside a parallelogram is 360°. Therefore
48° + x + y + y = 360°
Because x = 48°,
48° + 48° + 2y = 360°
2y = 360° - 96° = 264°
y = 132°

Because ABED and FEBC are congruent, therefore
y = m∠DAB = m∠CFE = 132°
x = m∠ADE = m∠FCB = 48°

Because FEBC is a parallelogram, the opposite angles are equal. Therefore
m∠CBE = m∠CFE = y = 132°
m∠BCF = m∠BEF = x = 48°

Answer:
The measures of all angles of trapezoid FEBC are
m∠BCF = 48°
m∠BEF = 48°
m∠CBE = 132°
m∠CFE = 132°

7 0
4 years ago
Question 3.
Vaselesa [24]
C, positive linear association. It is positive because it moves upward on the graph (left to right) and it is linear because it is a nearly straight line.
7 0
3 years ago
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Give the function for f(x)-5|x+1|+3 for what values of x is f(x)=-12
Lyrx [107]
I’m not sure whether there is a typo in the function but I might have the answer.

If f(x) = 5(x+1)+3 = -12 then you can solve for x.

5(x+1)+3 = -12
5x + 5 + 3 = -12 << expand the brackets
5x + 5 = - 15 << minus 3
x + 1 = -3 << divide everything by 5
x = -4 << minus 1

I don’t know if this helps x Sorry
3 0
3 years ago
4) 22 is what percent of 146?<br> A) 0.12%<br> B) 15.1%<br> C) 828.8% D) 8.3%
olga2289 [7]

Answer: the answer is b

Step-by-step explanation:

7 0
3 years ago
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Eric and his work crew have 50 trees to plant. In 8 hours today, they planted 40 trees. If they work at the same rate tomorrow,
andrezito [222]
Two hours. 
40%8=5 trees per hour. 50-40=10. 10% by 5=2.
4 0
4 years ago
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