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Zielflug [23.3K]
3 years ago
12

What is the location of the second endpoint if the first endpoint is at (5,2) and

Mathematics
1 answer:
RUDIKE [14]3 years ago
5 0
The second midpoint is (-15,8)
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A dice is rolled 2 times. What is the probability of showing a 5 on every roll Round to 4 decimal places
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Answer:

0.0278

Step-by-step explanation:

(1/6)(1/6) = 1/36 = 0.0278

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What is the equation of a line perpendicular to:
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Step-by-step explanation:

"perpendicular" means it creates a right angle (90°) with the original line.

a key element is the slope (the incline) of the line.

it is the factor of x (here 1/4 for the original line) and is defined as the ratio of "y coordinate change / x coordinate change" when going from one point on the line to another.

the given slope of 1/4 means that for every increase in x by 4 units y increases by 1 unit.

now if you want to draw a few random lines, and then draw lines that cross them with a right angle, you will see very quickly the relationship of the slopes of the crossing lines :

for the slope of the perpendicular line x and y of the original slope trade places (the ratio turns "upside-down") and the sign of the slope flips (if the original line goes up, then the perpendicular line goes down and vice versa. so + turns into -, and - into +).

so, our original slope 1/4 turns into -4/1 = -4.

we still have infinite possibilities to draw such a perpendicular line (more up or more down on the coordinate grid).

to finally "nail" one particular line we need to use the given point and solve for the y-intercept.

the general slope-intercept form is

y = ax + b

a is the slope, b is the y-intercept (the y value for x = 0).

so, using the slope (-4) and the point (2, 5) we have

5 = -4×2 + b = -8 + b

13 = b

so, the full equation is

y = -4x + 13

7 0
2 years ago
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5 quarters and 8 dimes = $2.05
7 0
3 years ago
Read 2 more answers
Can y'all help me with all of them plz
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10. 150
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6 0
3 years ago
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