You have to find how much does it grow each year.
Ratio of height and years. Height is 10 units and age 5 units.
Ratio = 10/5 = 2
So 2 units a year.
Answer:
Step-by-step explanation:
6(2x+ 10) = x - 61
12x + 60 = x - 61
11x + 60 = -61
11x = -121
x = -11
6y= -11 - 61
6y = -72
y = -12
(-11, -12)
Answer:
B, 6
Step-by-step explanation:
In the equation (x - c)² + (y - d)² = r², (c, d) is the center and r is the radius. In this case, c = -2, d = 7 and r = 6 so the center is (-2, 7) and the radius is 6.
Answer:
(C) -7x − 5y = -48
Step-by-step explanation:
We look for the equation of the line AB
We have then:
y-yo = m (x-x0)
m = (y2-y1) / (x2-x1)
m = (4 - (- 1)) / (4 - (- 3))
m = 5/7
We choose an ordered pair:
(xo, yo) = (4, 4)
Substituting:
y-4 = (5/7) (x-4)
y = (5/7) x-20/7 + 4
7y = 5x - 20 + 28
7y = 5x + 8
y = (5/7) x + 8/7
The equation of the perpendicular line is:
-7x - 5y = -48
Answer:
the equation of BC is:
(C) -7x - 5y = -48
We need to convert 135.28º in degree, minute, and second measure.
In order to do so, notice that:
Also,
Thus, we have the proportion:
<em>degrees minutes</em>
<em> 1 60</em>
<em> 0.28 x</em>
Then:
Thus:
Now, notice that:
Thus, we have the proportion:
<em>minutes seconds</em>
<em> 1 60</em>
<em> 0.8 y</em>
Then:
Therefore:
And the first option is correct.