let's firstly convert the mixed fractions to improper fractions and then add, bearing in mind that the LCD from 8 and 4 is simply 8.
What is not an equation of the line going through (6,7) and (2,-1)
2 answers:
Given points are (6,7) and (2,-1). Now we have to find the equation of line that doesn't passes through these two points.
Since choices are missing to I will find equation of line passing through those points first then any choice which is not equivalent or same as the obtained equation will be the answer.
Slope is given by formula :
Now plug m=2 and any point say (2,-1) into y=mx+b
-1=2*2+b
-1=4+b
-5=b
plug m=2 and y=-5 into y=mx+b
So the line passing through given points is y=2x-5
Hence any choice which is not equivalent or same as the obtained equation y=2x-5 will be the answer.
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Answer:
401
Step-by-step explanation:
1. Approach
To solve this problem, one first has to think about the given figure in a certain way. In the figure, one can see that it is a circle attached on either side of a rectangle. To find the perimeter of the figure, one has to find the circumference of the circle and then add two sides of the rectangle to the answer
2. Circumference of the circle
The formula to find the circumference of a circle is;
(pi) or
(pi)
~ diameter times the value (pi)
Normally to find the circumference of a semicircle, one would have to divide this formula by 2, but since in this case, one has to add two congruent semicircles, so therefore, the effect of dividing the equation by two, only to multiply by two again cancels, and hence, there is no need to divide by 2.
Substitute in the values;
(78)(pi)
~ 245
3. Find the perimeter of the entire object
Now, one has to add the two additional sides of the figure, to the circumferences of the semicircles to get the final answer;
78 + 78 + 245
= 401