Answer:
4 sqrt(5)
Step-by-step explanation:
7 sqrt(5) - 3 sqrt(5)
These are like terms so we can subtract
4 sqrt(5)
Answer:
B
Step-by-step explanation:
Answer:
The value of
= 
Step-by-step explanation:
Vertical Angle theorem: It is about the angles that are opposite to each other.
Also, vertical angle are congruent that means vertical angles are equal.
In the given figure;
and
are vertical angle
then, by vertical angle theorem,
.
Supplementary angle: the sum of the angles whose measure on the straight line is 180 degree.
From the figure,
,
and
forms a straight line.
then, by the definition of Supplementary angle;

Substituting the value of
in above equation:
or

Simplify:

therefore,
and
,
the value of
.
The value of alpha is 0.26, assuming a confidence level of 74%.
<h3>What is the margin of error?</h3>
The significance level α is the probability of making the wrong decision when the null hypothesis is true.
Alpha levels which is also called as significance levels are used in hypothesis tests.
Given
When finding the margin of error for the mean of a normally distributed population from a sample.
The confidence interval = 74% = 0.74.
The value of the alpha is given by;

Substitute all the values in the formula

Hence, the value of alpha is 0.26, assuming a confidence level of 74%.
To know more about confidence interval click the link given below.
brainly.com/question/26725727
Given:
7 kg turkey
cooking instructions:
over 4kg allow 20 minutes per kg, plus 90 minutes
always leave the turkey to rest for 30 minutes before carving.
7kg * 20 minutes/kg = 140 minutes
140 minutes + 90 minutes = 230 minutes
230 minutes + 30 minutes rest = 260 minutes
260 minutes * 1hr/60 minutes = 4 hours 20 minutes
17:15 is 5:15 pm
17:15 - 4:20 = 12:55 pm
Adam should start cooking at 12:55 pm