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eduard
3 years ago
8

Help plz i need help k

Mathematics
1 answer:
irga5000 [103]3 years ago
3 0
What do you need help with?
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Help thanks//////////??????????
3241004551 [841]

Answer:

Step-by-step explanation:

At the point where two line cut across, the vertically opposite angles formed are equal. This means that

2x degrees = 78 degrees

Dividing the left hand side and the right hand side of the equation by 2, it becomes

2x/2 = 78/2

x = 39

Checking,

The sum of the angles on a straight line is 180 degrees.

180 - 78 = 102 degrees

2x + 102 = 180

2x = 180 - 102 = 78

x = 78/2 = 39

8 0
3 years ago
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A. 2x4 + 21x2 +3x -2<br>B. 2x4 + 9x2 -2<br>C. 3x2 + 6x+ 1 <br>D. 2x4 + 9x3 +12x2 + 3x -2 <br> ​
Inga [223]
You need to foil, The answer is D
6 0
2 years ago
How much simple interest would $1 ,400 earn in 12 months at an interest rate of 3.25%?
goldfiish [28.3K]

Answer:

$45.50

Step-by-step explanation:

Interest = Principal x rate x time (in years)

I = 1400 x .0325 x 1

3 0
3 years ago
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What percent of 630 is 270
Tatiana [17]
I don't Clearly understand your question but I think it is 0.428571
8 0
3 years ago
Which measurement is the best estimate for the mass of an apple?
Taya2010 [7]
It would be A because an apple can't be 150 g that's way to heavy same for 150kg
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