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Sedbober [7]
2 years ago
15

Question: Best Pest Control charges $55 for a service call, plus $80 per hour of labor. If x

Mathematics
1 answer:
umka2103 [35]2 years ago
4 0
B: Y= 80x + 55
If x is 80 and y is 55 plug it in.
Y= mx + b
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Which graph represents 9x2 – 16y2 – 54x + 64y – 127 = 0?
klasskru [66]

Answer:

Right now I'm wondering what kind of class you are taking to get such a weird graph, but I graphed it for you on the screenie.

Step-by-step explanation:

You should though recheck your question for exponents, as 9x2 could be interpreted differently.

Since exponents to not transition well here, I can assume that it was a 9x^2, so please add an exponent symbol ^ between the variables and exponents next time.

3 0
3 years ago
16. a. Melissa earned $112.80 for working an 8 hour shift at the Apple Store. What is her hourly rate of pay?
Luda [366]
Her hourly rate of pay would be $14.1 an hour because $112.8 divided by 8 is $14.1
4 0
3 years ago
Read 2 more answers
The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm^2/
VARVARA [1.3K]

Answer:

The base is decreasing at 2 cm/min.

Step-by-step explanation:

The area (A) of a triangle is given by:

A = \frac{1}{2}bh   (1)

Where:

b: is the base

h: is the altitude = 10 cm

If we take the derivative of equation (1) as a function of time we have:

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

We can find the base by solving equation (1) for b:

b = \frac{2A}{h} = \frac{2*120 cm^{2}}{10 cm} = 24 cm

Now, having that dh/dt = 1 cm/min, dA/dt = 2 cm²/min we can find db/dt:

2 cm^{2}/min = \frac{1}{2}(\frac{db}{dt}*10 cm + 1 cm/min*24 cm)

\frac{db}{dt} = \frac{2*2 cm^{2}/min - 1 cm/min*24 cm}{10 cm} = -2 cm/min    

         

Therefore, the base is decreasing at 2 cm/min.

               

I hope it helps you!  

7 0
2 years ago
Please helme guys.....
vesna_86 [32]

Sorry this took so long! I managed to do everything except for the parts involving standard deviation. (I tried but I couldn't quite figure it out.)

~Hope this helps!~

Download xlsx
3 0
3 years ago
plant a is 5 centimeters tall growing at the rate of 3 centimeters a month. plant b is 4 centimeters tall
Maslowich
What are u asking for
7 0
3 years ago
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