Answer:
See below for answers (in bold) and explanations
Step-by-step explanation:
<u>Part A</u>
According to the Empirical Rule, 99.7% of the data in a normal distribution are ±3σ standard deviations away from the mean. Hence, approximately 99.7% of women over seventy have blood pressures between 134-3σ = 134-3(7) = 134-21 = 113 mmHg and 134+3σ = 134+3(7) = 134+21 = 155 mmHg.
<u>Part B</u>
As 141-134=134-127=7, this represents ±1σ standard deviations away from the mean of 134 mmHg, which corresponds to 68% of the data by the Empirical Rule. Hence, approximately 68% of women over seventy have blood pressures between 127 mmHg and 141 mmHg
Answer:
HL
Step-by-step explanation:
We are dealing with triangle DAB and CBA.
Angles DAB and CBA are right angles making the triangles right triangles.
Side AB is congruent to side BA. That is a leg of each of the two triangles.
Side DB is congruent to side CA. Tat is a leg of each triangle.
The triangles are congruent by HL.
Answer:
>
Step-by-step explanation:
it says fewer, meaning 11 or below
Answer:
Dale played 2 hours and 30 minutes in total.
Step-by-step explanation:
If one game lasts 5/8 hours, and Dale plays 4 games, that means that you have multiply the amount of hours per the amount of games he plays.
Therefore, you should do 4 x 5/8 which equals 20/8.
However, it is recommended to simplify your answer so really you should get 2 hours and 30 minutes.
Answer:
Step-by-step explanation:
(-14) ÷ (-34)
14/34
= ⁷/17
