28:21
because the same number has to multiply both sides of the ratio. so number = 7 and:
4x 7 = 28
3 x 7 = 21
5 + 9 = 14
4.9 / 14 = 0.35
0.35 * 5 = 1.75
0.35 * 9 = 3.15
The answer is 1.75 / 3.75
Answer: 7 units
Step-by-step explanation:
Just plot the numbers, then count the distance between them
Answer: y = 2x
Step-by-step explanation:
The equation of a straight line can be represented in the slope intercept form as
y = mx + c
Where
m = slope = (change in the value of y in the y axis) / (change in the value of x in the x axis)
The equation of the given line is
y = 2x - 8
Comparing with the slope intercept form, slope = 2
If two lines are parallel, it means that they have the same slope. Therefore, the slope of the line passing through (- 3,-6) is 2
To determine the intercept, we would substitute m = 2, x = - 3 and
y = - 6 into y = mx + c. It becomes
- 6 = 2 × - 3 + c
- 6 = - 6 + c
c = - 6 + 6 = 0
The equation becomes
y = 2x
Answer:
The area of the new circle is 
Step-by-step explanation:
Given:
radius of the circle = 3 in.
we know that
If two figures are similar, then the ratio of its areas is equal to the scale factor squared.
Let
z-----> the scale factor
x-----> the area of the enlarged circle
y-----> the area of the original circle
So;
In this problem we have
----> the scale factor
The area of the original circle is equal to
Now substituting value of y and solve for x we get;
Hence Area of the new Circle is
Also The area of the enlarged circle is 16 times the area of the original circle.
