The correct answer is B trustttttttt
Answer: A
Explanation is the rise is 2 and run is 1
2/1 and as an equation it’s y=2x + 1
Answer:
-38z
Step by step explanation:
You’d Combine Like Terms:
- 10z + -28z
= (-10z + -28z)
= -38z
Answer:
This is a reasonable decision because the sample size has no effect on the 90% confidence interval
Step-by-step explanation:
90% confidence interval
larger sample size = 20
condition : sample mean ( x-bar ) is the same for both samples
<em>This is a reasonable decision because the sample size has no effect on the 90% confidence interva</em>l
<u>from condition 1 :</u>
Amount of drink dispensed is normally distributed with known standard deviation , given a random sample of n drinks and the sample mean at a confidence interval of 90%
<u>for condition 2 :</u>
sample size = 20
mean = 2.25 ( assumed value )
std = 0.15 ( assumed value )
Z = 1.645 ( Z-value )
determine the 90% confidence interval
= mean ± z
= 2.25 ± 1.645
= 2.25 ± 0.0335 = ( 2.2835 , 2.2165 )
the correct question is<span>One positive integer is 3 units more than another. When the reciprocal of the larger is subtracted from twice the reciprocal of the smaller, the result is
2/9. Find the two positive integers.</span>
let
x-------> the <span>positive larger integer
y------> the </span><span>positive smaller integer
we know that
x=3+y------> equation 1
2*(1/y)-(1/x)=29-----> equation 2
substitute equation 1 in equation 2
</span>2*(1/y)-(1/(y+3))=2/9
[2*(y+3)-y]/[y*(y+3)]=2/9
9*[2y+6-y]=2*[y²+3y]
9*[y+6]=2y²+6y
9y+54=2y²+6y
2y²-3y-54=0
using a graphical tool to resolve the second order equation
see the attached figure
the solution is
y=6
so
x=y+3------> x=6+3-----> x=9
the answer isthe numbers are9 and 6