Answer:x=12cm
Step-by-step explanation:
PA ×PB=PT^2
4×(4+x)=(8)^2
16+4x=64
4x=64-16
4x=48
x=12cm
Y=40x since y intercept is 0 and slope is 40
Answer:
y= 5
x= 2
Step-by-step explanation:
y = 4x - 3 ... (1)
y= -2x +9.... (2)
Multiply equation (2) by 2
It becomes;
2y = -4x +18 ...(3)
Add equation (3) and (1)
It becomes;
3y = 15
y = 5.
Substitute y = 5 in equation (1)
It becomes;
5 = 4x -3
Collecting like terms:
4x = 5 + 3
4x = 8
x = 8/4
x = 2
Answer:
4y−12
Step-by-step explanation:
4(y−3)
Use the distributive property to multiply 4 by y−3.
4y−12
