Answer:
55
Step-by-step explanation:
Answer:
the slope is 5
Step-by-step explanation:
Solve for y
20x -4y = 40
Subtract 20x from each side
20x-20x -4y = -20x +40
-4y = -20x+40
Divide each side by -4
-4y/-4 = -20x/-4 +40/-4
y = 5x -10
This is in slope intercept form y = mx+b where m is the slope and b is the y intercept
The slope is 5
The function is increasing on the intervals:
(-∞, 3] and [5, ∞)
Then the correct options are a and c.
<h3>On which intervals is the function increasing?</h3>
The function is increasing when, reading from left to right, we can see that the curve goes upwards.
By looking at the graph, we can see that the function increases between -∞ and 3, and also increases between 5 and ∞, then the correct options are a and c-
(-∞, 3] and [5, ∞)
If you want to learn more about increasing functions:
brainly.com/question/1503051
#SPJ1
Problem 7)
The sides 2x+4 and 3x-10 are congruent because they are opposite congruent angles. This is an isosceles triangle. Since they are congruent, they are equal. Let's solve for x.
2x+4 = 3x-10
2x+4-2x = 3x-10-2x
4 = x-10
4+10 = x-10+10
14 = x
x = 14
The answer to problem 7 is x = 14
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Problem 8)
This is a right triangle because of the square angle marker. That angle is 90 degrees. This is also an isosceles triangle because of the similar tick marks on the two upper sides. Because this is an isosceles right triangle, that means the triangle is a 45-45-90 triangle. Two angles are 45 degrees.
So,
2x+3 = 45
2x+3-3 = 45-3
2x = 42
2x/2 = 42/2
x = 21
The final answer to problem 8 is x = 21