Answer:(-3,-6)
Step-by-step explanation:
-4x+y=6
+ -5x-y=21
_________
-9x. = 27
X= 27/-9
X = -3
-4(-3)+y=6
12+y=6
Y=6-12
Y= -6
To check
-4(-3)+(-6)=6 and -5(-3)-(-6)=21
12-6=6. 15+6=21
6=6. 21=21
They check by our answers
Answer: 4 yards 2 ft
Step-by-step explanation:
1 yard = 3 feet
8 yards - 3 yards = 5 yards - 1 yard = 4 yards
3 ft + 1 ft - 2ft = 2 ft
answer is 4 yards 2 feet
Answer:
9x -6
Step-by-step explanation:
f(x)= 2x+3 and g(x)= 7x-9
f(x) + g(x) = 2x+3 + 7x-9
Combine like terms
= 2x+7x +3-9
=9x -6
you just answered your own question
The slope of f is m= -0.05577.
Given : The winning times for the 200-meter dash can be approximated by f(x) = - 0.05577x+146.2 , where x is the year.
To find : The slope of f
Solution : Using slope intercept form a linear function is represented as
y = mx+b
where, m is the slope and b is the y-intercept.
We can write the function as f(x) = - 0.05577x+146.2
Comparing with slope intercept form,
m= -0.05577 and y-intercept = 146.2
Therefore, The slope of f is m= -0.05577
learn more of slope here brainly.com/question/12009197
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