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NISA [10]
2 years ago
11

The cost that a carpet cleaning company charges is directly proportional to the number of rooms cleaned. The cost is $22 for eac

h room. Write an equation to represent this relationship. Im just confused im sorry hah please help!! 35Pts (repost)
Mathematics
1 answer:
Dmitry [639]2 years ago
5 0

Answer:

y = 22x

Step-by-step explanation:

Let x = the number of rooms

y = total cost

It costs 22 dollars per room

y = 22x

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In a causal-comparative study, what is the difference between independent variables and dependent variables? independent variabl
AlladinOne [14]

Answer: independent variables cause the effect measured in the dependent variables

Step-by-step explanation: In a causal - comparative study, the dependent variables refers to the variable whose changes is being measured or observed. The changes or alteration of the dependent variable is induced by the different values of the independent variable. In causal - comparative study, the different independent variables is assumed to have a direct impact on the output or values of the dependent variable which is measured by the experimenter. Therefore, the independent variable does not change, but causes the observed changes noticed in the dependent variable.

7 0
3 years ago
Write an equation in slope-intercept form for this line. A line passes through the point (10,-7) and has a slope of -5/2
Damm [24]

y =  -  \frac{5}{2} x + 18
i think
6 0
3 years ago
A timer is started and a few moments later a model airplane is launched from the ground. Its height (in feet) as a function of t
WITCHER [35]

The airplane reaches its maximum height of 81 feet in 12 seconds.

<h3>Behavior of curves</h3>

If y = x^{2}, it means that the second derivate is 2 which is positive, then there is a minimum turning point.

If y = - x^{2}, it means that the second derivative will be -2 which is negative, then there is a maximum turning point.

Analysis:

h(t) = -(t - 12)^{2} + 81

By expanding,

h(t) = -(t^{2} - 24t + 144) +81

h(t) = -t^{2} + 24t - 144 + 81

h(t) = -t^{2} + 24t - 63

at turning point d/dt(h(t)) = 0

d/dt (h(t)) = -2t +24

-2t +24 = 0

if we differentiate again, second derivative is -2 which is negative, so it is a maximum point.

2t = 24

t  = 12 seconds

h(t) at t = 12

h(t) = -(12)^{2} + 24(12) - 63 = 81 feet

In conclusion, the maximum height of the airplane after 12 seconds is 81 feet.

Learn more about minimum and maximum points: brainly.com/question/14993153

#SPJ1

7 0
1 year ago
Solve by completing the square. (Enter your answers as a comma-separated list.)
scZoUnD [109]

Answer:

y=\sqrt-{35} -8\\y=\sqrt{35}-8

Step-by-step explanation:

times in the y+9 and y+7 and get y squared + 16x+ 63+80.

6 0
1 year ago
Is 4 to 7 the same as 7 to 4 explain why it why not
tino4ka555 [31]
It’s not the same because if you simplify them there going to end up looking different (the answers) And they get a whole different do you denominator a numerator
6 0
3 years ago
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