Answer:
D
Step-by-step explanation:
The answer would be 1 3/4.
Split 7 into 4+3. We now have: (4+3)/4. This is the same as 4/4+3/4. This is 1+3/4. Now for mixed numbers<span> remove the +.
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Answer:
65°
Step-by-step explanation:
The missing angle is x°
tan x° =
tan x° =
tan x° = 2.125
Using a calculator insert
tan^(-1)(2.125) ≈ 65° (after rouding the the nearest unit)
Answer:
it takes approximately 11 years and 3 months (11.4 years) for Belinda's investments to double.
Step-by-step explanation:
To calculate the time it takes for Belinda's money to double, we will use the simple interest formula as shown below:
Simple interest = P × R × T
where:
P = principal = $800
R = Rate in decimal = 8.75% = 0.0875
T = time = ???
simple interest = $800 ( her money doubles)
∴ 800 = 800 × 0.0875 × t
800 = 70 × t
∴ t = 800 ÷ 70 = 11.4 years. (11 years and 3 months)
Therefore after approximately 11 years and 3 months, Belinda's investments doubles
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as the regression line is not given.
However, I will give a general explanation of how to calculate the degree of freedom of a slope of regression line
The degree of freedom is calculated using:
Where
For a regression line; there are two parameters that are being estimates;
The intercept and the slope. So:
Hence, the degree of freedom of a slope of regression line is:
So; if for example
the degree of freedom will be: