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devlian [24]
3 years ago
11

The work that Yi did to find the greatest common factor of 42 and 63 is shown below. Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42 Fa

ctors of 63: 1, 7, 9, 63 The greatest common factor is 7. What is Yi’s error?
Mathematics
2 answers:
ikadub [295]3 years ago
8 0

Answer:

A. Yi did not list all the factors of 63

Step-by-step explanation:

Did the quiz

Crazy boy [7]3 years ago
5 0

Answer:

see explanation

Step-by-step explanation:

The error is that the factors of 3 and 21 are missing from the list for 63

Factors of 42 : 1, 2, 3, 6, 7, 14, 21, 42

Factors of 63 : 1, 3, 7, 9, 21, 63

common factors are : 1, 3, 7, 21

greatest common factor = 21

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Simplify (7x−13)−(x+5)
igor_vitrenko [27]
Greetings!

Simplify.
(7x-13)-(x+5)
Distribute the Parenthesis.
7x-13-x-5
Combine Like Terms.
7x-x-13-5
6x-18

Hope this helps.
-Benjamin
5 0
3 years ago
Read 2 more answers
Circle O has a circumference of approximately 28.3 cm. What is the approximate length of the radius, r?
Scrat [10]

Answer:

4.5 cm.  

Step-by-step explanation:

We have been given that circle O has a circumference of approximately 28.3 cm.

We will use circumference formula to solve for the radius of our given circle.

\text{Circumference of a circle}=2\pi r

Upon substituting the measure of circumference in above formula we will get,

28.3=2\pi r  

r=\frac{28.3}{2\pi}

r=4.504084889500638\approx 4.5

Therefore, the radius of circle O is 4.5 cm.

3 0
3 years ago
Read 2 more answers
A PHN is studying the rate of H1N1 in the community. If there are five cases of H1N1 in the community of 1,000 people, what is t
BigorU [14]

Answer:

0.5%

Step-by-step explanation:

The prevalence rate shows the proportion of people that have a disease in a population and to be able to calculate it, you have to divide the number of people that have a disease by the population:

Prevalence rate=(5/1,000)*100

Prevalence rate=0.005*100

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According to this, the answer is that if there are five cases of H1N1 in the community of 1,000 people, the prevalence rate is 0.5%.

8 0
3 years ago
Consider a line whose slope is 6 and which passes through the point (8.–2).
Zolol [24]

Answer:

y=6(x-8)-2\qquad\text{point-slope form}

y=6x-50\qquad\text{slope-intercept form}

Step-by-step explanation:

The equation of a line can be written in several forms. Two of the most-used forms are the point-slope and the slope-intercept forms.

The point-slope form requires to have one point (xo, yo) through which the line passes and the slope m. The equation expressed in this form is:

y=m(x-xo)+yo

The slope-intercept form requires to have the slope m and the y-intercept b, or the y-coordinate of the point where the line crosses the y-axis. The equation is:

y=mx+b

The line considered in the question has a slope m=6 and passes through the point (8,-2). These data is enough to find the point-slope form of the line:

\boxed{y=6(x-8)-2\qquad\text{point-slope form}}

To find the slope-intercept form, we operate the above equation:

y=6x-48-2

\boxed{y=6x-50\qquad\text{slope-intercept form}}

3 0
3 years ago
Why is 11 not pronounced as 'onety one'?
WINSTONCH [101]
According to that logic you should start with the question "Why is ten not called onety"? 
7 0
3 years ago
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