Answer:
x=10, y=5
Step-by-step explanation:
For substitution, you always want to get the variable alone. The second equation (x-2y=0) will be easier to substitute into the first equation.
x-2y=0
x=2y
You can substitute 2y as x on the first equation (x+4y=30).
2y+4y=30
6y=30
y=5
Plug y=5 into any equation.
x+4(5)=30
x+20=30
x=10
Complete Question
The complete question is shown on the first uploaded image
Answer:
The correct option is F
Since the test statistics<u> is outside </u>the rejection region , <u>we fail to reject </u>the null hypothesis ,There<u> is no</u> statistically significant evidence to reject the claim
Step-by-step explanation:
From the question we are told that
The claim is 
Hence
The null hypothesis is 
The alternative is 
Generally the test statistics is mathematically represented as
=> 
=>
Generally the degree of freedom is mathematically represented as
From the student t-distribution table the critical value of 
at a degree of freedom of 8 is
Since the 
is outside the rejection region , we fail to reject the null hypothesis ,There is no sufficient evidence to reject the claim
Answer:
Build a bond ladder to boost
Step-by-step explanation:
By using a bond ladder, you smooth out the fluctuations in the market because you have a bond maturing every year or so. The second reason for using a bond ladder is that it provides investors with the ability to adjust cash flows according to their financial situation.Sep 18, 2019
Answer:
Its simple the anwser is 2.3
Step-by-step explanation:
9.8
-7.5=
2.3
It is true because
when you separate 2y^2 +9y -18, you are supposed to get the factors
(2y-3)(y+6), when you multiply this it gives you the first equation, we know
this because when we multiply the first term it gives us exactly 2y^2 and if we
multiply the last ones it gives you -18, now here is the tricky part, when we
multiply the middle part we get 12y and -3y, when we add these up we get 9y,
now is that the same middle as in the equation? Yes… then our factors are correct
making this true
Hope this helps
