Answer is Option B
If any doubt leave a comment
1: 12 * ![10^{9}](https://tex.z-dn.net/?f=10%5E%7B9%7D)
We can easily tell this is the answer here as 12 is larger than 4. They are both being multiplied by the same power of 10, so we can ignore that part and still tell which is larger.
2: 3 * ![10^{12}](https://tex.z-dn.net/?f=10%5E%7B12%7D)
Same here, we can easily tell this is the answer here as 3 is larger than 1.5. They are both being multiplied by the same power of 10, so we can ignore that part and still tell which is larger.
3: 6 *
This one is slightly more complicated than the other two, but still not to difficult when you know what you're doing.
A tip: 10 to the fourth power (
) is 10,000. Aka, a 1 with four zeros!
For the first one, 20 has a zero, so we can take it and put it onto the 10th power. We know have:
2 *
and 6 *
Using the same method as #1 and #2, we can tell that 6 *
is the answer here!
I hope this helps, have a nice day :D
I think the first one is correct. Since “three less than z squared” insinuate that the value is 3 units less than the value z^2
Answer:
Yes, we reject the auto maker's claim.
Step-by-step explanation:
H0 : μ ≥ 20
H1 : μ < 20
Sample mean, xbar = 18 ;
Sample size, n = 36
Standard deviation, s = 5
At α = 0.01
The test statistic :
(xbar - μ) ÷ s /sqrt(n)
(18 - 20) ÷ 5/sqrt(36)
-2 /0.8333333
= - 2.4
Pvalue from test statistic : Pvalue = 0.00819
Pvalue < α
0.00819 < 0.01
Hence, we reject the Null
To get the the cost of how much Alexis is paying we first have to find the original cost and then subtract the $15 which is equal to 20% of the original number.
To find the original price you take the $15 and divide it by .20
15÷.20= 75
To get the original price of a percentage you do the opposite of if you were trying to find the % for example :
75 x .20 = 15
15 ÷ .20 =75
The original price is $75
75 - 15 = 60
With the discount it is $60
I hope it helped