determine if the ordered pair is a solution of the equation is (-1,4) a solution of y =-2×+2? true or false
1 answer:
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We know the opposite side (10) and the adjacent side (7), so we can use tangent to find angle B. Since tan = opposite side/adjacent side, we can set up this equation: tan(B) = 10/7. We can get B on its own by making the equation this: 
Now, we plug this into our calculator to get:
B = 55°, so angle B is 55°.
Let me know if you need any more help!
Now, we plug this into our calculator to get:
B = 55°, so angle B is 55°.
Let me know if you need any more help!
Answer:
a) 3.308 lb
b) That difference is 2.91 standard deviations.
c)
d) We have that , so the weight of 5.24lb is significantly high.
Step-by-step explanation:
The z-score formula is given by:
In which: X is the weight we are going to find the z-score of, is the mean of all the weights and
is the standard deviation of all the weights.
The problems gives these following informations:
The highest weight is 5.24 lb
The mean of all the weights is 1.932 lb
The standard deviation of all the weights is 1.135 lb
a. What is the difference between the weight of 5.24 lb and the mean of the weights?
b. How many standard deviations is that [the difference found in part (a)]?
The difference found in (a) is 3.308lb.
This can be calculated by a simple rule of three.
1 standard deviation - 1.135lb
x standard deviations - 3.308lb
That difference is 2.91 standard deviations.
c. Convert the weight of 5.24 lb to a z score.
We have that:
and
. So: