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Annette [7]
3 years ago
9

Anumeha is mowing lawns for a summer job. For every mowing job, she charges an initial fee of $ 1 0 $10dollar sign, 10 plus a co

nstant fee for each hour of work. Her fee for a 5 55-hour job, for instance, is $ 3 5 $35dollar sign, 35. Let F ( t ) F(t)F, left parenthesis, t, right parenthesis denote Anumeha's fee for a single job F FF (measured in dollars) as a function of the number of hours t tt it took her to complete it. Write the function's formula.
Mathematics
1 answer:
Alinara [238K]3 years ago
3 0

Answer:

The answer is (F = 5T  + 10) !!!!                                                                                   Step-by-step explanation: I Don't have a step by step explanation but that's the answer


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Can someone please help me with math
Svetach [21]
What kind of math is it? Just wondering so that I can help you
3 0
2 years ago
Read 2 more answers
Find the exact length of the third side.<br> 75<br> 21
Margaret [11]
Bu using Pythagoras theorem
(x^2)+(21)^2=(75)^2
Therefore. 5625-441=(x)^2
X^2=5184
Therefore x=72
Third side length=72 units
7 0
3 years ago
the height h(t) of a trianle is increasing at 2.5 cm/min, while it's area A(t) is also increasing at 4.7 cm2/min. at what rate i
nekit [7.7K]

Answer:

The base of the triangle decreases at a rate of 2.262 centimeters per minute.

Step-by-step explanation:

From Geometry we understand that area of triangle is determined by the following expression:

A = \frac{1}{2}\cdot b\cdot h (Eq. 1)

Where:

A - Area of the triangle, measured in square centimeters.

b - Base of the triangle, measured in centimeters.

h - Height of the triangle, measured in centimeters.

By Differential Calculus we deduce an expression for the rate of change of the area in time:

\frac{dA}{dt} = \frac{1}{2}\cdot \frac{db}{dt}\cdot h + \frac{1}{2}\cdot b \cdot \frac{dh}{dt} (Eq. 2)

Where:

\frac{dA}{dt} - Rate of change of area in time, measured in square centimeters per minute.

\frac{db}{dt} - Rate of change of base in time, measured in centimeters per minute.

\frac{dh}{dt} - Rate of change of height in time, measured in centimeters per minute.

Now we clear the rate of change of base in time within (Eq, 2):

\frac{1}{2}\cdot\frac{db}{dt}\cdot h =  \frac{dA}{dt}-\frac{1}{2}\cdot b\cdot \frac{dh}{dt}

\frac{db}{dt} = \frac{2}{h}\cdot \frac{dA}{dt} -\frac{b}{h}\cdot \frac{dh}{dt} (Eq. 3)

The base of the triangle can be found clearing respective variable within (Eq. 1):

b = \frac{2\cdot A}{h}

If we know that A = 130\,cm^{2}, h = 15\,cm, \frac{dh}{dt} = 2.5\,\frac{cm}{min} and \frac{dA}{dt} = 4.7\,\frac{cm^{2}}{min}, the rate of change of the base of the triangle in time is:

b = \frac{2\cdot (130\,cm^{2})}{15\,cm}

b = 17.333\,cm

\frac{db}{dt} = \left(\frac{2}{15\,cm}\right)\cdot \left(4.7\,\frac{cm^{2}}{min} \right) -\left(\frac{17.333\,cm}{15\,cm} \right)\cdot \left(2.5\,\frac{cm}{min} \right)

\frac{db}{dt} = -2.262\,\frac{cm}{min}

The base of the triangle decreases at a rate of 2.262 centimeters per minute.

6 0
3 years ago
Two events, A and B, are independent of each other. P(A)=– and P(A and B)
Georgia [21]

Answer:

D: 0.75

P(B) = \frac{6}{8} = 0.75

Step-by-step explanation:

<u>Explanation</u>:-

<u><em>Independent events:</em></u>

If the occurrence of the  event 'B' is not effected by the occurrence or non- occurrence of the event 'A' then the event 'B' is said to be independent of 'A'

or

<em>The two events are independent if the incidence of one event is not affect the probability of other event.</em>

<em>P(A∩B) = P(A) P(B)</em>

Given data A and B are independent events

Given  data

    P(AnB) = \frac{1}{8} and P(A) =\frac{1}{6}

we know that A and B are independent events are

  P(A∩B) = P(A) P(B)

  \frac{1}{8} =  \frac{1}{6}  P(B)

Now calculation we get

P(B) = \frac{6}{8} = 0.75

<u><em>Final answer:</em></u>-

P(B) = \frac{6}{8} = 0.75

7 0
3 years ago
What is the constant of proportionality in the equation y=5x?
zaharov [31]

Answer: The constant of proportionality is 5 because the equation would be y=kx but instead of k it has 5.

5 0
3 years ago
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