Answer:
Percentage of the students scored higher than 89% = 65.87%
Step-by-step explanation:
We need to find the percentage of students who scored higher than 89% given mean = 84 and standard deviation = 5.
We can find the percentage of students who scored higher than 89% by using z-score.
The formula for z-score is:
μ= mean = 84
σ=standard deviation = 5
x= random number = 89
Putting these values, we get
Now, we know that we need to find students who score greater than 89%
so P(X>89) or P(X>1),
finding value of z= 1 which can be easily found using z score tables.
By looking at table we get the value of z = 0.3413
Subtracting the value of z from 1 we get
Percentage of the students scored higher than 89% = 1-0.3413 = 0.6587 or 65.87%
The answer is to the equation is 20/27
Answer:
a) h(3) = 9
b) h(0) = 6
c) h(6) = 4
Step-by-step explanation:
Piecewise functions have <u>multiple pieces</u> of curves/lines where each piece corresponds to its definition over an <u>interval</u>.
Given piecewise function:
Therefore, the function has two definitions:
<u>Part (a)</u>
h(3) means to substitute x = 3 into the function.
As <u>x does not equal 6</u>, substitute x = 3 into the <u>first piece of the function</u>:
<u>Part (b)</u>
h(0) means to substitute x = 0 into the function.
As <u>x does not equal 6</u>, substitute x = 0 into the <u>first piece of the function</u>:
<u>Part (c)</u>
h(6) means to substitute x = 6 into the function.
As <u>x equals 6</u>, then use the <u>second piece of the function</u>:
Learn more about piecewise functions here:
brainly.com/question/11562909
brainly.com/question/28151925
(3w+4)
3w/3= .75(you)
(5w+1)
5w/5=1 5/1=5 so = 5(your friend)
the difference is 5-.75=4.25
Answer:
9^2 × 9^6=9^10/9^2
When multiplying exponents, if the bases are the same you add the exponents.
9^2 × 9^6 = 9^(2+6)=9^8
When dividing exponents, I'd the bases are the same you subtract the bottom exponent from the top.
9^10/9^2=9^(10-2)=9^8
9^8=9^8
Solution: 9^10 over 9^2
Step-by-step explanation: