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skad [1K]
3 years ago
6

Find the measurement of angle b

Mathematics
2 answers:
Anuta_ua [19.1K]3 years ago
6 0

Answer:

133

Step-by-step explanation:

Ghella [55]3 years ago
5 0

Answer:A + angle B + angle C = 180 degrees, we can find the measure of .

Step-by-step explanation:

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A demographer wants to measure life expectancy in countries 1 and 2. Let μ1 and μ2 denote the mean life expectancy in countries
Art [367]

Answer:

For this case we want to test if life expectancy in country 1 is more than 10 years lower than in country 2, (alternatibe hypothesis), so then the system of hypothesis are:

Null hypothesis: \mu_1 \leq \mu_2 -10

Alternative hypothesis:\mu_1 > \mu_2 -10

Or equivalently:

Null hypothesis: \mu_1 - \mu_2 \leq 10

Alternative hypothesis:\mu_1 - \mu_2 >10

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Solution to the problem

For this case we want to test if life expectancy in country 1 is more than 10 years lower than in country 2, (alternatibe hypothesis), so then the system of hypothesis are:

Null hypothesis: \mu_1 \leq \mu_2 -10

Alternative hypothesis:\mu_1 > \mu_2 -10

Or equivalently:

Null hypothesis: \mu_1 - \mu_2 \leq 10

Alternative hypothesis:\mu_1 - \mu_2 >10

7 0
3 years ago
Can you please help me with this.
ohaa [14]
Hope this helps!


Last one should be y=2 +1

3 0
3 years ago
In​ basketball, some baskets are worth two points. Others are worth three points. In one​ game, the ratio of​ three-point basket
fgiga [73]

Answer:

36 attempts

Step-by-step explanation:

7 0
3 years ago
If r = -18, s = 27, and t = -15, what is the value of r - s - t
7nadin3 [17]
-18- -27 = -45 -45- -15 = -30
8 0
3 years ago
Read 2 more answers
Help Please.<br><br> Let f(x)=186+5e−0.1x . What is f(6) ?
larisa86 [58]

The answer is 186+5e-0.6

7 0
3 years ago
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