Answer:
The correct answer is -
a. 4.5 inches.
b. side or arm (a)
c. (a) or 4.5, and 18
d. (d) 4.5, and 14.1428
e. 22/7 × r^2 = 15.90
Step-by-step explanation:
Given :
Radius or r = 2 ¼ inches
Solution:
a. the diameter of the circle -
d = 2r
= 2 ¼ *2
= 2.25*2
= 4.5
b. The diameter of the circle is the same length as one side or arm of the square which is
a = d = 4.5
c. The perimeter of the square
P = 4a = 4d = 4*4.5 = 18
d. Perimeter of the circle =
2πr = πd = (22/7)*4.5
= 14.1428
e. the area of the circle =
22/7 × r^2
= 15.90
Answer:
The dimensions of the tire are 190/75-15.
The first number is the width of tire in mm, here is 190 mm
The second number is ratio between sidewall and width of tire in %, here is 75%
The third number is diameter of wheel in inch, here is 15 inch or 15 x 25.4 = 381 mm
Then, we have:
1. The width of the tire is the first number: 190 (mm)
2. The length of the side wall = width x ratio = 190 x 75/100 = 142.5 mm
or 142.5 /25.4 = 5.61 inch
3. The diameter of the whole tire:
D = diameter of wheel + sidewall x 2
= 381 + 142.5 x 2
= 666 mm or 666/25.4 = 26.22 inch
Hope this helps!
:)
Answer:
a
Step-by-step explanation:
A vertical line is a line that is straight up and down. It doesn't tilt. Think of a flagpole as one of many examples.
I suggest plotting the point (-0.4, 0.3) on the coordinate grid. Draw a vertical line through this point. You'll see that there are other points on this line such as...
(-0.4, 0) and (-0.4, 2) and (-0.4, 5)
and so on...
There are infinitely many points on this line. All of them have the same x coordinate of -0.4 since that's what the original point has. Y can be anything you want.
So the equation of this line is simply x = -0.4 to indicate "force x to be -0.4 and y can be whatever you want"