Option A:
The length of BE is 4.
Solution:
Given data:
AE = 6, EC = 12 and DE = 18
To find the length of BE:
<em>If two chords intersect in a circle, then the product of lengths of one segment is equal to the product of lengths of other segment.</em>
⇒ AE × EC = DE × BE
⇒ 6 × 12 = 18 × BE
⇒ 72 = 18 × BE
Divide by 18 on both sides of the equation.
⇒ 4 = BE
Switch the sides.
⇒ BE = 4
The length of BE is 4.
Option A is the correct answer.
The doctor computed test statistic to test his claim that the average body temperature is less than 98.6 degrees Fahrenheit.
Test statistic is a statistic which is derived from the sample to test whether to accept the null hypothesis or accept the null hypothesis. As we have been given in the question the doctor wanted to test his claim, so he did a hypothesis test. And for the hypothesis test he calculated a random from the sample that was collected from the population data which is known as the test statistic.
Hence doctor computed the test statistic to test his claim.
Learn more about test statistic here : brainly.com/question/16695849
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Answer:
0.0000025
Step-by-step explanation:
Answer:
x=50
Step-by-step explanation
The two angles add up to 180, so 2x+4+76 = 180
2x+80=180
2x=100
x=50
Answer:
We must order these decimals from least to greatest. Then we must determine how the least compares with the winning score.
9.80 -> 3
9.75 -> 1
9.79 -> 2
9.81 -> 4
The least decimal is 9.75. Now we must determine how 9.75 compare with the winning score.
The last swimmer must get a score less than 9.75 seconds in order to win.