Answer:
x =28
Step-by-step explanation:
We can use proportions to solve this problem, Put the side of the small triangle over the side of the large triangle.
x 42
------- = -----------
x+10 42 + 15
Simplify
x 42
------- = -----------
x+10 57
Using cross products
57*x = 42 (x+10)
Distrbute 42
57x = 42x+420
Subtract 42x from each side
57x -42x = 42x-42x+420
15x = 420
Divide by 15
15x/15 = 420/15
x =28
Answer:
p=16
Step-by-step explanation:
? + 8 = 11
Subtract 8 from both sides.
? = 3
HG = 8
? + 6 = 9
Subtract 6 from both sides.
? = 3
HI = 3
Answer:
y = - x + 5
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = 2x + 2 ← is in slope- intercept form
with slope m = 2
Given a line with slope m then the slope of a line perpendicular to it is
= - = - , thus
y = - x + c ← is the partial equation
To find c substitute (4, 3) into the partial equation
3 = - 2 + c ⇒ c = 3 + 2 = 5
y = - x + 5 ← equation of perpendicular line
If you divide it, it comes out to 2x+7