Replace x with the x value solve to get the y value.
see attached picture for answers.
Step-by-step explanation:
hope this will help you.
Answer:
$284.60
Step-by-step explanation:
7.3% of $265.24 = 19.36252,
So the tax is $19.36.
19.36 + 265.24 = 284.60
So the total grocery bill is $284.60.
Answer:
The margin of error at 90% confidence is 0.5133 gram.
Step-by-step explanation:
Margin of error (E) = (critical value × sample standard deviation) ÷ sqrt(n)
sample standard deviation = 1.5 grams
confidence level = 90% = 0.9
significance level = 1 - C = 1 - 0.9 = 0.1 = 10%
n (sample size) = 25
degree of freedom = n - 1 = 25 - 1 = 24
critical value (t) corresponding to 24 degrees of freedom and 10% significance level is 1.711
E = (1.711×1.5) ÷ sqrt(25) = 2.5665 ÷ 5 = 0.5133 gram
Answer: x = 8
Step-by-step explanation:
Since, RTS is the equilateral triangle.
Thus, RT= TS = SR
And, 
( By the property of the equilateral triangle.)
Here, Given ∠ RST = (7 x + 4)°
And, ∠ RTS = (8y +12)°
Therefore, (7 x + 4)° = 60°
⇒ 7 x = 56
⇒ x = 8
