Answer:
The statement makes this comparison using the correct variable expression is If Leo has d dollars, then Dale has 2d + 3 dollars.
Reason
The amount of money that Leo has be represented by d .
As given
Dale has three dollars more than twice the amount of money that Leo has.
Than the amount of money that Dale has = 2d + 3
Therefore the If Leo has d dollars, then Dale has 2d + 3 dollars.
Angle R is congruent to Angle Y
Side QR is congruent to side XY
Answer:
The 95% confidence interval for the mean change in blood pressure, , is 1.744 < < 2.816
Step-by-step explanation:
The parameters given are;
The number of people in the sample, n = 9
The average drop in blood pressure, = 2.28 points
The standard deviation, σ = 0.82
The confidence level = 95%
The formula for confidence interval with a known mean is given as follows;
Where:
= z - score at 95% confidence level = 1.96
We therefore have;
Which gives the 95% confidence interval for the mean change in pressure, , is given as follows;
1.744 < < 2.816
The sum of any tetracontadigon's interior angles is 7200 degrees.
Answer:
Option D.$8820
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above