The answer for this solution is D
-3 and b
Answer
A) C=5+2d
Step-by-step-explanation
The tax he has to pay is $4.95
The total bill would be $94.95
X = 3
Explanation:
In a rhombus, the diagonals are perpendicular, creating four congruent right triangles.
Because the value of all three angles within any given triangle will add up to 180°, we can easily simplify the equation.
First, we’ll need to add our given angles. Which are 32° (as can be seen on the graph) and 90° (because any pair of perpendicular lines create four right angles and this triangle includes one of them).
32° + 90° = 122°
Next, we’ll subtract 122 from 180 to find the remaining angle measure
180 - 122 = 58
Then, we’ll subtract 31 with the subtraction property of equality
58 - 31 = 27
Right now, our equation looks like:
27 = 9x
In order to simplify this equation further, we must use the division property of equality to get x on its own.
27/9 = 9x/9
3 = x
Answer:
Check the explanation
Step-by-step explanation:
:proportion of male smoker lung deaths is same for the four given tar level categories.
:proportion of male smoker lung deaths is not the same for the four given tar level categories.
Expected frequency=1177/4=294.25
Tar level Observed Freq.(O) Expected Freq.(E) (O-E)^2/E
0-7 107 294.25 120.435
8-14 375 294.25 5.643
15-21 553 294.25 227.533
>=22 183 294.25 42.061
Total= 1177 1177 395.673
Total chi square score=395.673
df=4-1=3
p-value=CHIDIST(395.673,3)<0.001
p-value<0.001,Reject null hypothesis.
There is sufficient evidence that the proportion of male smoker lung deaths is not the same for the four given tar level categories.