Answer: x > 20
Step-by-step explanation:
first, i removed the parentheses.
2x - 6 + 5 > 39
then i calculated it.
2x - 1 > 39
then, i moved the constant to the right.
2x > 39 + 1
then, i added the two.
2x > 40
finally, i divided both sides.
solution: x > 20
It means that you need to divide 42 on both sides
42x/42=7/42
0.166.....
Answer:
C. x=5 units.
Step-by-step explanation:
In right triangle ABC, the height BD is the geometric mean of the segments AD and DC.
Hence,
<h3>
Answer:</h3>
(x, y) = (0.3, 0.1)
<h3>
Step-by-step explanation:</h3>
The sum of the probability numbers must be 1. That is, ...
... 0.6 + x + y = 1.0
The expected value must be 22.5. That is, ...
... 20·0.6 +25x +30y = 22.5
These two equations can be written as the system of equations ...
- 5x +5y = 2 . . . . . . the first equation in standard form
- 5x +6y = 2.1 . . . . . the second equation with 5 factored out (after subtracting 12)
Subtracting the first of these equations from the second gives ...
... (5x +6y) -(5x +5y) = (2.1) -(2)
... y = 0.1
Putting this in the very first equation above, we have ...
... 0.6 +x +0.1 = 1.0
... x = 0.3 . . . . . . . . . subtract 0.7
Answer:
7)
a. a=5
b. b=7
c. y=10
d. z=6
Step-by-step explanation:
hope this helps:)
