Answer:
the smaller angle is 35 degrees.
Step-by-step explanation:
complementary angles are 90 degrees, so you would set your entire equation to 90.
we can use the variable x to represent the unknown smaller angle. we know that the larger angle is 20 more degrees than the unknown smaller angle (x). we can set up the equation like this:
x + x + 20 = 90
the first x represents the smaller angle and the x + 20 represents the other angle, which is 20 more than the smaller angle. we set it to 90 because we know that the entire angle will be 90 degrees
move variables and constants to opposite sides of the equal sign and combine like terms:
x + x = 90 - 20
2x = 70
divide both sides by 2 to isolate 90:
x = 35
you can plug x back into the equation to check your answer if you want
hope this helps!! :)
Answer: A [16.4 cm]
Step-by-step explanation:
add 4.5 times 2 + 3.7 times 2
Answer:
-6r + .5
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Answer:
The standard deviation for the sample mean distribution is 
Step-by-step explanation:
The central limit theorem states that if you have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population then the distribution of the sample means will be approximately normally distributed.
For the random samples we take from the population, we can compute the standard deviation of the sample means:
From the information given
The standard deviation σ = 136 dollars
The sample n = 45
Thus,
The standard deviation for the sample mean distribution is
