Come on now, check your book on the "product to sum" identities
Answer:
<15,-21>
Step-by-step explanation:
u = <3, -1>
v = <-6, -6>
9u + 2v
9 <3, -1>+2 <-6, -6>
<27, -9> + <-12,-12>
<15,-21>
Answer:
Therefore the probability of 10 - 12 inclusive = 0.20613 + 0.21862 + 0.17004
= 0.59479
+ 59.5% to one place of decimals
Step-by-step explanation:
P(exactly 10) = 15C10 * (0.70)^10 * (0.30)^5
=15! / (10! * 5!) * (0.70)^10 * (0.30)^5
= (15*14*13*12*11) /(5*4*3*2*1) * (0.70)^10 * (0.30)^5
= 0.20613
P(exactly 11) = 15C11 * (0.70)^11 * (0.30)^4
= (15*14*13*12)/(4*3*2*1) *(0.70)^11 *(0.30)^4
= 0.21862
P(exactly 12) = 15C12 * (0.70)^12 * (0.30)^3
= (15*14*13)/(3*2*1) * (0.70)^12 * (0.30)^3
= 0.17004
Well you need to know that a yard is 36 inches. Therefore, you need to multiply 75 by 36 and you will get the amount of inches total which is 2700. Then turn that into feet by dividing it by 12. That gives you 225. Hope I helped!
Answer:
Jennifer paid $108
Step-by-step explanation:
First you have to figure out how much Jennifer's parents paid. In order to do that you will have to do:
180 * 40 = 7,200 Then do: 7,200 / 100 which is 72 OR YOU CAN:
40 / 100 = .40 Then do : .40 * 72 which is 72
So Jennifer's parents paid $72.
So now you figured out how much Jennifer's parents paid, so to figure out how much Jennifer paid do:
180 - 72 which is $108.
This is how you know how much did Jennifer pay.