3 boys for every 2 girls
So, the percentage of girls is (2 / 5) x 100 = 40%
F/g(x) = (2x^2 + 5x - 1)/(x + 3)
f/g(4) = (2(16) + 5(4) -1)/(4 + 3)
= (32 + 20 -1)/7
= 51/7
Answer:
There is not sufficient evidence to support the claim.
Step-by-step explanation:
The claim to be tested is:
The mean respiration rate (in breaths per minute) of students in a large statistics class is less than 32.
To test this claim the hypothesis can be defined as follows:
<em>H₀</em>: The mean respiration rate of students is 32, i.e. <em>μ</em> = 32.
<em>Hₐ</em>: The mean respiration rate of students is less than 32, i.e. <em>μ</em> < 32.
The sample mean respiration rate of students is 31.3.
According to the claim the sample mean is less than 32.
The sample mean value is not unusual if the claim is true, and the sample mean value is also not unusual if the claim is false.
Thus, there is not sufficient evidence to support the claim.
Answer:
x equals 4.6
Step-by-step explanation:
if u need explanation plz tell me so i can help
Answer:difference of two squares will be
16y^2 -x^2 = (4y -x)(4y +x)
so the second choice
Step-by-step explanation:
