Answer:
x=-0.5, y=3.5
Step-by-step explanation:
The system consists of two functions equations.
Plot graph of each function (see attached diagram for details).
These graphs intersect at one common point. Its coordinates approximately are (-0.454,3.546).
This common point represents the solution of given system. The answer rounded to the nearest tenth is x=-0.5, y=3.5.
800+16x=720+21x
80+16x=21x
80=5x
X=16
So 16 hours :)
Answer:
The 95% confidence interval is
The interpretation is that there is 95% confidence that the true population proportion lie within the confidence interval
Step-by-step explanation:
From the question we are told that
The sample size is n = 1003
The number that indicated television are a luxury is k = 521
Generally the sample mean is mathematically represented as
Given the confidence level is 95% then the level of significance is mathematically evaluated as
Next we obtain the critical value of from the normal distribution table, the value is
The margin of error is mathematically represented as
=>
=>
The 95% confidence interval is mathematically represented as
=>
=>
Answer:
EFD=52°
CFD=43°
Step-by-step explanation:
85° × 2= 170°
360°-170°=190°
190°÷2= 95°
6x-20+2x+19=95°
8x-1=95°
x=(95°+1)÷8
x= 12
EFD=6x-20
EFD= 6×12-20
EFD= 52°
CFD= 2x+19
CFD=2×12+19
CFD= 43°
Answer:
L-25=W
Step-by-step explanation:
Because it says that the width of Ina's dining room table is 25 inches less that its length, that tells you that you will be subtracting 25 inches from the length of the table. So your equation can be written like:
L-25=W
W= L-25
w= l-25
l-25=w