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3 years ago

Solve the system of equations

Mathematics

1 answer:

ikadub [295]3 years ago

4 0

Answer:

The answer is B.

Step-by-step explanation:

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Wyatt owns a new store on the boardwalk by the beach. He plans to sell beach balls in his store. Each one costs him $4.95. He wa

KonstantinChe [14]

Wyatt should charge $9.26 before 8% sales tax if he does not want customers to pay more than $10.00

They will actually be charged $10 exactly.

9.26*.08= .74

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3 years ago

The temperature, H, in degrees Celsius, of a cup of coffee placed on the kitchen counter is given by H = f(t), where t is in min

Deffense [45]

Answer:

f'(t) is negative

The unit is degC/min

At 35 minutes after the coffee was put on the counter, its temperature is 68 and will decrease by about 0.75 in the next 30 seconds.

Step-by-step explanation:

From the question we are told we are told that

The equation for the temperature of a cup of coffee place on a counter is

$H= f(t)$

Here t is the time in minutes the coffee was put on the counter

Generally f(t)' is the derivative of f(t) at it represents the change of the temperature of the cup of coffee with respect to time

Generally for the coffee placed on the counter after a couple of minutes the temperature will decrease hence f(t)' is negative

Generally the unit of the temperature is in degrees Celsius while that of time is in minutes

So the change in temperature with time f(35)' will be in degrees Celsius/minutes (i.e degC/min)

From the question we are told that

$|f(35)'| = 1.5$

i.e the rate of change of temperature after 35 minutes is 1.5

and

$|f(35)| = 68$

i.e the temperature of the cup of coffee after 35 minutes is 67 degC

Now after another t= 30 seconds = $\frac{30}{60}= 0.5 \ minutes$ the rate of change of the temperature of the cup of coffee is

$R = |f(35)'| * t$

=> $R = 1.5 * 0.5$

=> $R = 0.75$

At 35 minutes after the coffee was put on the counter, its temperature is 68 and will decrease by about 0.75 in the next 30 seconds.

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3 years ago

Match each power with the equivalent expanded form. need help fast pls!

LenKa [72]

6^5 = 6•6•6•6•6
x^7 = x•x•x•x•x•x•x
x^5 = x•x•x•x•x
5^6 = 5•5•5•5•5•5

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3 years ago

Which of the following shows the solution to m+5 >-1

Ne4ueva [31]

The first one m > -6

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3 years ago

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Consider a regular hexagon centered at (3,4). Describe a rotation that

Ne4ueva [31]

Answer:

36- degree rotation m8

Step-by-step explanation:

mark me brainliest :)

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3 years ago