Answer:
The slope is 9, and the y-intercept is –2
Step-by-step explanation:
y = 9x - 2
y = 9x + (-2)
This is in the form of y = mx + c ,where m is slope and c is y-intercept.
So, The slope is 9, and the y-intercept is –2.
In y-intercept, intercept means to cut. So,
y-intercept means where the equation cuts the y-axis. We know that in y-axis, the value of x is 0. So, we put x = 0 in the equation to find y-intercept.
y = 9x + (-2)
y = 9×0 - 2
y = -2
Hence, y-intercept is -2.
Hi! so what you want to do is first set up a proportion, if you know that the two triangles are congruent because abc~def you know that the proportion will work out. the proportion to set up is 54/72 from there you should know that 9 goes into both 72 and 54 so when you reduce you’d be left with 6/9 which you could further reduce to 2/3. then you can find the other sides by multiplying 92 by 2/3 and you’d get 61 and 84 by 2/3 where you’d get 56. However since you are supposed to find the perimeter, you would add all three sides together (54+56+61) and you’d be left with 171. hope this helps
Answer:
the first one gat to be x=4
<u>Part 1) </u>
we know that
The circumference of a circle is equal to
where
r is the radius of the circle
In this problem we have
substitute
Remember that
radians subtends the complete circle of length
so
by proportion
Find the radian measure of the central angle subtended by an arc with a length of feet
therefore
<u>the answer Part 1) is</u>
<u>Part 2) </u>
we know that
The area of a circle is equal to
where
r is the radius of the circle
In this problem we have
substitute
Remember that
The area of complete circle subtends a length of the complete circle of
so
by proportion
Find the area of the sector formed by an arc with a length of feet
therefore
<u>the answer Part 2) is </u>
-3x+2y=8
Steps:
1) Add 3x to both sides to get rid of it by the y.
2y=3x+8
2) Divide both sides by 2 to isolate the y.
y= 3/2x + 8/2
3) Simplify (divide 8 by 2)
y= 3/2x+4
Hope this helps!