Answer:
A)
Step-by-step explanation:
Y=ax+b, y=cx+d (a≠0, c≠0)
If the two line cross perpendicularly ⇔ ac= -1
So a tangent of the perpendicular line is "-(1/5)".
Then, the equation of the perpendicular line is y=-(1/5)x+a (a is <span> y-intercept</span>).
On the other hand, this equation pass r(1, 3), so
3 = -(1/5) times 1 + a
∴ a=16 / 5
Therefore, y=-(1/5)x+16 /5 is answer.
By the way, I'm Japanese so if you find some mistakes in my English, please let me know.
Answer:
FIRST ONE
Step-by-step explanation:
Answer:
Mean is 17
Median is 10.5
Mode is 2
Range is 37
Step-by-step explanation:
<u>Mean is the average: 2 + 2 + 6 + 15 + 38 + 39 = 102 / 6 = 17 MEAN</u>
<u />
<u>Median is the middle: 2, 2, 6, 15, 38, 39</u>
Between 6 and 15 -> 15 - 6 = 9 / 2 = 4.5
6 + 4.5 = 10.5
Median is 10.5
<u>Mode is most common: </u><u>2, 2</u><u>, 6, 15, 38, 39</u>
<u />
Mode is 2
<u>Range is the difference between the highest and the lowest number: 39 - 2</u>
37
Range is 37
Answer:
1. 28
2. b = 7.06
2. c = 3.76
Step-by-step explanation:
1. m < C = 90 - B = 90 - 62 = 28 degrees
2. sin B = opposite/hypotenuse
sin (62o) = b/8
b = 8 x sin (62o) = 8 x 0.883 = 7.06
3. sin C = opposite/hypotenuse
sin (28o) = c/8
c = 8 x sin (28o) = 8 x 0.4695 = 3.76
