Answer: 4/5
Step-by-step explanation:
To find the slope, solve for y
4x - 5y = -20
-5y = -4x - 20
y = 
The slope is the coefficient of x which is 
Answer:
The answer to the question provided is 16 units.
.
Step-by-step explanation:
☆Well, we simply use the distance formula, which is:

...
☆All we need to do is plug in!

Answer:
The value of the expression at x = 4 is 140
Step-by-step explanation:
<em>Let us solve the question</em>
∵ The expression is 8x² + 3x
∵ x = 4
→ To find the value of the expression at x = 4 substitute x by 4 in
the expression, then calculate the value of it
∵ The value of the expression = 8(4)² + 3(4)
→ Solve the power first
∴ The value of the expression = 8(16) + 3(4)
→ Simplify each term using multiplication
∴ The value of the expression = 128 + 12
→ Add the terms
∴ The value of the expression = 140
∴ The value of the expression at x = 4 is 140
Answer:
C
Step-by-step explanation:
As the x tends to infinity and - infinity, the function does the same, so it's an odd function. The function also have two extrema, that means it have 2 turning point
Answer:P(t) = 10t - 400
Step-by-step explanation:
Selling price of each ticket = $10
Cost of setting up the dance= $400
Profit = Revenue - cost
Revenue = price × quantity
Revenue that will maximize profit = 10t
where t= quantity of tickets that maximises profits
Cost = $400
Profit(t) = Revenue - cost
P(t)= 10t - 40
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