5x -15 + 3 -8x = 13
5x -12 -8x = 13
5x -8x =13 -12
-3x = 1
x = -1/3
Answer:
A 2
B 1
C 4
D 3
Step-by-step explanation:
( ) means not including (also used for infinity)
[ ] means including
The answer choices are in interval form, showing all the possible answer choices between two numbers and if the answer choice includes or excludes a number using the () []
Explanation for A:
x < 7.8 means x won't include 7.8 since the symbol is "less than" and not "less than or equal to".
x can be anything, it just has to be less than 7.8, so the answer is:
2 (-infinity, 7.8)
Explanation for B:
x <= 7.8 means x will include 7.8 since the symbol means "less than or equal to".
x can be anything, it just has to be less than or equal to 7.8, so the answer is:
1 (-infinity, 7.8]
Explanation for C:
x >= 7.8 means x will include 7.8 since the symbol means "greater than or equal to".
x can be anything, it just has to be greater than or equal to 7.8, so the answer is:
4 [7.8, infinity)
Explanation for D:
x > 7.8 means x won't include 7.8 since the symbol means "greater than" and not "greater than or equal to".
x can be anything, it just has to be greater than 7.8, so the answer is:
3 (7.8, infinity)
Hope it helps (●'◡'●)
Answer:
D
Step-by-step explanation:
Trust me I have big brain
We have that
<span>Write an equation of a line that passes through the point (2, 3) and is parallel to the line y = (3/2)x +5
parallel lines are the same slope
then
m=(3/2)
step 1
find the equation of a line with
m=3/2 and point (2,3)
y-y1=m*(x-x1)----------> y-3=(3/2)*(x-2)------> y=(3/2)x
the answer is
y=(3/2)x
</span><span>y = 3 over 2 x
see the attached figure</span>
Answer:12/3=4 he washed 4 cars in an hour so he earned $20 per hour since 4*5=$20
Step-by-step explanation:
