Answer:
Step-by-step explanation:
radius (r) = 4 cm
area of the circle
= π * r²
= 3.14 * 4 * 4
=50.24 cm²
hope it will help :)
Hello,
answer A: x=3
4(3+7)=4x+4*7
==>4*10=4(x+7)
==>x+7=10
==>x=10-7
==>x=3
ANSWER
The missing constant term is 64
EXPLANATION
The given expression is
Let the k be the constant term, then
is a perfect square.
This implies that, the discriminant is zero.
The discriminant is
Answer:
the answer is 6
Step-by-step explanation:
Answers:
- Choice C) the number of hours the barn is rented
- Choice B) 10
- Choice A) the hourly rate
- Choice C) 550
- Choice B) the base fee to rent
- Choice A) The variable y
- Choice D) total amount charged
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Explanation:
The equation is y = 10x+550
If x = 0, then it leads to y = 550. This is the smallest amount paid, and it's the base fee. Think of it like the fee to get in the door. This is the y intercept of the equation.
On top of this base fee is the $10 per hour fee for utilities. Each time an hour goes by, add on another extra $10. So we attached x to this to reflect what's going on. This is the slope of the equation, aka rate of change.
It might be helpful to compare y = mx+b to y = 10x+550
m = 10 = slope = how things change
b = 550 = y intercept = starting point
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Example:
Let's say you rented the barn for 2 hours.
That means x = 2 and 10x = 10*2 = 20 extra dollars is added on top of the base fee of $550
total = 20+550 = 570
This is what the steps could look like when plugging in x = 2
y = 10x+550
y = 10*2 + 550
y = 20 + 550
y = 570
Therefore, renting the barn for x = 2 hours leads to a total cost of y = 570 dollars.