Answer: 10 x -5 - 2 x 4 = -58
Step-by-step explanation: the z from the 10 z becomes -5 and the x becomes 2 and the y becomes 4 simply just answer it
Answer:
The probability that the last card dealt is an ace is .
Step-by-step explanation:
Given : A deck of ordinary cards is shuffled and 13 cards are dealt.
To find : What is the probability that the last card dealt is an ace?
Solution :
There are total 52 cards.
The total arrangement of cards is 52!.
There is 4 ace cards in total.
Arrangement for containing ace as the 13th card is .
The probability that the last card dealt is an ace is
Therefore, the probability that the last card dealt is an ace is .
Answer:
Step-by-step explanation:
The p value (probability of obtaining results as extreme the z score if null is true) is usually the value derived to make a conclusion and in this case the p value is 0.03
The level of significance is the value usually compared with the p value which is 0.05
The sample promotion is 65 out of 100 = 65/100 = 0.65
The sample size is the total number of consumers which is 100
The null value is usually the default value. The null value would assume that there is no difference in the proportions who prefer each type in the population. There are two preferences: 100/2 = 50- 0.5 for each preference.
Answer:
= 5/n + 3
Step-by-step explanation:
Given that:
=5/n+1 × n+1/n+3
Number 1: 5/n+1
Number 2: n+1/n+3
By simplifying the given product in eq1:
=5/n+1 × n+1/n+3
The denominator of first fraction will be cancelled by the numerator of second fraction and will give:
= 5/n + 3
This is the simplified product.
i hope it will help you
Take -5x + y =13 and rearrange for y:
y=13+5x
Substitute into other equation for y:
-3x+3(13+5x)=3
Multiply out brackets:
-3x+39+15x=3
Simplify:
12x+39=3
Rearrange for x:
12x=-36
x=-3
Substitute back into y=13+5x:
y=13+5(-3)
y=13-15
y=-2