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Nonamiya [84]
3 years ago
12

Which of the following expressions does not have a value of -2/3

Mathematics
2 answers:
andreev551 [17]3 years ago
8 0
It’s the third one C. (-1/2) (-8). Because if you multiply two negatives you get a positive.
andrew11 [14]3 years ago
6 0
It is the third option
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Is it rational or irrational?
ElenaW [278]
It is a rational number
5 0
3 years ago
Read 2 more answers
Can you help me with numbers 20-22 please a lot of points
arsen [322]
We could find the slope with this formula
m = (y₂ - y₁)/(x₂ - x₁)
with (x₁,y₁) and (x₂,y₂) are the points that is located on the line.


NUMBER 20
Given:
(x₁,y₁) = (-2,3)
(x₂,y₂) = (7,-4)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (-4 - 3) / (7 - (-2))
m = -7 / (7+2)
m = -7/9

The slope of the line is -7/9


NUMBER 21
Given:
(x₁,y₁) = (-6,-1)
(x₂,y₂) = (4,1)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (1-(-1)) / (4 -(-6))
m = (1+1) / (4+6)
m = 2/10
m = 1/5

The slope of the line is 1/5


NUMBER 22
Given:
(x₁,y₁) = (-9,3)
(x₂,y₂) = (2,1)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (1 - 3) / (2 - (-9))
m = -2 / (2 + 9)
m = -2/11

The slope of the line is -2/11
6 0
3 years ago
The height of a cone is two times its base diameter. What is the volume of the cone in terms of its base radius r?
nydimaria [60]

Volume of the cone = (1/3) pi r^2 h

h = 2r  so substituting for h:-

V = (1/3) pi r^2 * 2r

V = (2/3) pi r^3

5 0
3 years ago
Which is the correct answer?
Montano1993 [528]

Answer:

I'm not sure but I think it is letter A

Step-by-step explanation:

Because first off 0 is divisible by any integer number meaning it has to be divide by a whole number not fraction. Also, 0 + 2 = 2 then you divide that by 4 is 0.5.

6 0
3 years ago
What is the decimal equivalent of the fraction -68 / 255
garri49 [273]

This is just a calculator problem.

+/- This will turn 68 into a minus when you enter it. On some calculators it is the (-) key.

68

÷

255

=

-0.266666666 is what you should get.


5 0
3 years ago
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