Answer: x= -(1/2)
Step-by-step explanation:
(x+5 +3) / x+3 = 3
Multiply both sides by (x+3)
(x+8)= 3(x+3)
x+8 = 3x+9
-2x = 1
x= -1/2
CHECK:
-1/2 +8 = 15/2 -1/2+3 =5/2
15/2 : 5/2 = 15/2*(2/5) = 30/10 = 3
D. 16 people. Just count all numbers until 88.
Answer:
When put into a decimal, the answer is 0.09 recurring.
Step-by-step explanation:
Divide the numerator by the denominator to convert a fraction to a decimal. The entire number stays to the left of the decimal when there is a mixed number.
Answer:
A. principal interviewed the 25 students who scored highest on a reading test.
D. For a report on the exercise habits of adults, Sergio talked to 30 adults at a local fitness center.
E. Josh asked the first 25 people he met at the dog park if they preferred dogs or cats.
Step-by-step explanation:
Biased means if the selection of every unit does not have an equal chance of being selected in a sample.
The sample is said to be good if choosing the unit is unbiased. The sample is said to be unbiased if the selection of each unit is independent.
Option A is an example of data selected in a biased way because principal chose only those student who scored the highest marks on reading test.
Options B and C are unbiased as here a selection of each number and name of the student has an equal chance of being selected.
Option D is biased because Sergio talked adults at a local fitness center where people go for maintaining their health. So, there is a chance of the selection of fitted adults more than unfitted adults.
Option E is biased because Josh met people at the dog park where dog lovers are more than a cat lover.
recall that a circle has a total of 360°.
so that missing central angle is then 360° - 110° - 65° - 90°. Well, the arc's angle measurement is the same as the central angle they're in, so the x° is the same as 360° - 110° - 65° - 90°.
