Answer:
x is equal to 30
<ABC is equal to 100°
<DBC is equal to 80°
Step-by-step explanation:
3x +10 +2x +20 =180
5x = 180 - 10- 20
5x = 150, divide both sides by 5
x is equal to 30
<ABC = 3x + 10 = 3 × 30 + 10 = 100°
<DBC = 180 - <ABC = 180 - 100 = 80°
The surface area of what?
The confidence interval of employes individuals from home
Construction of hypothesis:
0.10 - 0.047 < p < 0.10 + 0.047
A simple random sample size n = 250 . Of the 250 employed individuals surveyed,42 responded that they did work home a minimum of once per week.
Construct 99% confidence interval for population
For proportion : 42 / 250 = 1/10 = 0.16
Mean = 2.5 * sqrt [ 0.1 * 0.9 / 250]
= 2.5 * 0.01
= 0.47
Construction of hypothesis:
0.10 - 0.047 < p < 0.10 + 0.047
To know more about confidence interval
brainly.com/question/24131141
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Answer:
Step-by-step explanation:
Products of fractions can be similar to products of integers because the product of the fraction can cancel out or simplify to an integer. For example:
1/2 x 2/1
Any number multiplied by its reciprocal is equal to 1.
The same rules for multiplying positive and negative integers still applies to multiplying positive and negative fractions.
Hope this helps!! :)
