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alex41 [277]
3 years ago
15

Help.. please.. I have no idea how to do this..

Mathematics
1 answer:
IrinaK [193]3 years ago
7 0
X = 116 degrees
The sum of the three angles in a triangle add up to 180 degrees
Add up the two known angles
32 + 32 = 64
Subtract that from the total measure
180-64 = 116
Since 116 and x are vertical angles, they are congruent, making x equal to 116
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(5x^2-8x+1)+(2x^2-6x+7) simplify
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Step-by-step explanation:

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4 0
3 years ago
A rectangular parking lot has a perimeter of 820ft. The area of the Parking lot measures 42000 ft2. What is the width of the par
quester [9]
2W + 2L = 820 
<span>LW = 42,000 or L = 42,000/W </span>
<span>substitute second equation into first equation: </span>
<span>2W + 2(42,000/W) = 820 </span>
<span>2W + 84,000/W = 820 </span>
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<span>quadratic formula: </span>
<span>W = [820 +/- SQR(672,400 - 4(2)(84,000))]/2(2) </span>
<span>W = [820 +/- 20]/4 </span>
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3 0
4 years ago
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Let f(x) = 3 x + 1 What is the value of x when f(x) = 7 ​
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6 0
3 years ago
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determine whether AB and CD are parallel, perpendicular,or neither. A(-1,-4), B(2,11), C(1,1), D(4,10)
sergiy2304 [10]

Step-by-step explanation:

the x distance from A to B is 3 (from -1 to 2), and the y distance is 15 (from -4 to 11).

the x distance from C to D is also 3 (from 1 to 4), but the y distance is 9 (from 1 to 10).

so, the slopes are different

AB : 15/3 = 5

CD : 9/3 = 3

and the lines are therefore not parallel.

perpendicular slopes are simply inverting y and x in the ratio and flip the sign (from - to + and vice versa). but that is not the case here either (just to start - both slopes are positive).

so, the 2 lines are "neither".

3 0
3 years ago
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