Your answer is B Hope I helped :)
Step-by-step explanation:
gradient = slope or several other words.
it describes how strongly a line (or tangent to a bent curve) is going up or down or ... if it is changing at all.
it is represented by the ratio
(y coordinate change / x coordinate change)
when going from one point on the line to another.
in our case, when going from A to B we have
x changes by -2k (from 3k to k).
y changes by -11 (from 8 to -3).
so, the gradient or slope is
-11/-2k = 3
11/2k = 3
11 = 3×2k = 6k
k = 11/6
A = (33/6, 8) = (11/2, 8)
B = (11/6, -3)
Answer: $10
Step-by-step explanation:
Given
Robin and his four friends bought tickets for
each
If each one of them bought a calculator then the total spendings are ![\$110](https://tex.z-dn.net/?f=%5C%24110)
Suppose the cost of each calculator is ![\$\ x](https://tex.z-dn.net/?f=%5C%24%5C%20x)
Cost per person is given by ![x+\$12](https://tex.z-dn.net/?f=x%2B%5C%2412)
For the group, it is ![5(x+12)](https://tex.z-dn.net/?f=5%28x%2B12%29)
Equate this to total spendings
![\Rightarrow 5(x+12)=110\\\Rightarrow x+12=22\\\Rightarrow x=\$\ 10](https://tex.z-dn.net/?f=%5CRightarrow%205%28x%2B12%29%3D110%5C%5C%5CRightarrow%20x%2B12%3D22%5C%5C%5CRightarrow%20x%3D%5C%24%5C%2010)
thus, the cost of each calculator is ![\$ 10](https://tex.z-dn.net/?f=%5C%24%2010)
Answer:
P(T) = 1/20 = 0.05
The probability of randomly selecting an umbrella and a shaving kit in that order is 0.05
Step-by-step explanation:
The probability of randomly selecting an umbrella and a shaving kit in that order.
P(T) = Probability of selecting umbrella first P(U) × probability of selecting shaving kit second P(S)
P(U) = 1/5 (1 umbrella out of five possible gifts)
P(S) = 1/4 (1 shaving kit out of four remaining possible gifts)
P(T) = 1/5 × 1/4
P(T) = 1/20 = 0.05