So if we think of a test tube, it looks sort of like a cylinder. This means that its cross-section would be a circle. To find out how many turns a piece of thread would make around the test tube, we need to find the circumference of the test tube, then divide the length of the string by the circumference.
Step 1) Find the circumference
C = pi x diameter
C = 3.14 x 3
C = 9.42
Step 2) Divide the length of the string by the circumference
90.42 / 9.42 = 9.5987
The string would make approximately 9.60 turns around the test tube.
Hope this helps!! :)
Complimentary angles add up to 90 degrees and supplementary angles add up to 180 degrees...
Complementary angle = 90-52= 38°
Supplementary angle = 180-52= 128°
Answer:
I wish I knew this maybe use the brainy scanner it could help you or google.
ANSWER
EXPLANATION
The point-slope equation of a straight line is given by:
Where m is the slope.
The line goes through (-5,4) and (1,6).
The slope of this line is,
The point-slope equation is
To find this, we simply multiply 75 by 2/5
75 * 2/5 = 75*2/5
150/5 = 30
She will use 30 gallons of paint.
