1. add the 4 to both sides
2. divide both sides by 3
750 miles
substitute t = 15 into the equation for d
d = 50 × 15 = 750 miles
Answer:
1. There is sufficient evidence to conclude that listening to soothing sounds increases the mean test score.
Step-by-step explanation:
A p - value less than 0.05 means that the test hypothesis is false or rejected.
In this question the test hypothesis is H 0 : mu=79 which is false as p-value is 0.035.
Whenever the p- value is less than the significance level H0 is rejected.
Hence the null hypothesis is rejected.
Therefore only choice 1 is correct.
There is sufficient evidence to conclude that listening to soothing sounds increases the mean test score.
There is sufficient evidence to support the claim.
It’s would be (1,2)
4x+3y=10 <— you solve for x and get x=5/2-3/4y
then substitute the value of x into 9x-4y=1 to get
9(5/2-3/4y)-4y=1
solve the equation for Y
y=2
now sub the value of y into x=5/2-3/4y
x=5/2 - 3/4 times 2
your answer would be x = 1
therefore you get (x,y) (1,2)
Volume of a cone: 1/3*pi*4*4*5 = 83.776 cubic cm rounded up to 3 decimal places