Answer:
Step-by-step explanation:
The formula governing this situation is
m1 * m2 = - 1
Method One
So let m1 = 7/4
(7/4)*m2 = - 1 Multiply by 4
7*m2 = -1*4 Divide by 7
m2 = -4/7
Method Two
Most people teaching this try to get you to use reciprocals. If you know how to do that then the answer is much simpler.
7/4 m2 = -1 Multiply by 4/7
4/7 * 7/4*m2 = - 1 * 4/7
m2 = -4/7
However if you are not comfortable with reciprocals, then then the thing to do is to handle them the way I showed you in the first method.
Z would mean 0 considering they would both be the last
Answer:
Step-by-step explanation:
The diagram is shown in the attachment.
By the altitude -leg rule :
This implies that:
By cross multiplication:
Take square root to get:
Using the Pythagoras Theorem:
Answer:
D: C = 4π
Step-by-step explanation:
The formula for circumference is C = 2πr
The diameter is 4 which means the radius is 2.
Plug the value of r into the formula.
C = 2π2
C = 4π
D: C = 4π
Answer:
Step-by-step explanation:
3x +1 = 2x +7 subtract 1 from both sides ( first)
3x +1 -1 = 2x + 7 -1
3x = 2x + 6 subtract 2x brom both sides (second)
3x -2x = 2x -2x +6
5x = 6