Answer:
21 diamonds.
Step-by-step explanation:
1 bracelet = 7 diamonds
3 bracelet= ? diamonds
All we have to do is multiply 3 by 7 to get the number of diamonds Jen have with three bracelets.
3 x 7 = 21
Answer:
Step-by-step explanation:
70-47=23
I think this is what you are talking about
Answer:
x = -2bm/(m²+1)
Step-by-step explanation:
One line has equation
... y = mx + b
The slope of the perpendicular line is the negative reciprocal of the slope of the original line. The perpendicular line with the opposite y-intercept has equation
... y = (-1/m)x - b
The point of intersection is where the x- and y-values are equal, so ...
... mx + b = (-1/m)x - b
... (m +1/m)x = -2b . . . . . . . add 1/m - b to both sides
... (m²+1)x = -2bm . . . . . . . multiply by m
... x = -2bm/(m²+1) . . . . . . divide by the coefficient of x
Plug in the to X value in
