All categories

2 years ago

Which equations have a leading coefficient of 3 and a constant term of –2? Check all that apply.

Mathematics

2 answers:

kvv77 [185]2 years ago

7 0

the answer is a, c, and e

lidiya [134]2 years ago

4 0

Answer:

Answer choices a,c,e, are correct

Step-by-step explanation:

You might be interested in

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.

5 0

2 years ago

Write an inequality to compare the integers -5 and -6

Dovator [93]

-5 > -6

I think this is what it would be because -5 is greater than (>) -6

Hope this is right and it helps :)

5 0

2 years ago

How many solutions does the nonlinear system of equations graphed below have?

k0ka [10]

Answer:

B) 2

Step-by-step explanation:

There are 2 points of intersection

3 0

2 years ago

Read 2 more answers

Serena is single. She purchased her principal residence three years ago. She lived in the home until she sold it at a $300,000 g

Lesechka [4]

Answer: Long -term capital gain

Step-by-step explanation:

Serena is single, so based on the Taxpayer Relief Act of 1997, she would pay no capital gains tax on the first $250,000 gain.

Therefore, $300,000 - $250,000 = $50,000

The remaining $50,000 gain is taxable because of her being single and it has been her principal residence for three years.

7 0

2 years ago

In Boston taxicabs charge an initial fare and an additional amount for every mile traveled. Tahira is having trouble figuring ou

nlexa [21]

Answer:

The taxi charges $2.5 for every mile.

Step-by-step explanation:

We are given the following in the question:

Let x be the initial taxicab fare and y be the additional amount for every mile traveled.

Cost for a two mile ride = $7.00

Thus, we can write the equation:

$x + 2y = 7$

Cost of a nine mile ride = $24.50

Thus, we can write the equation,

$x + 9y = 24.50$

Solving the two equation by elimination method, we have,

$x + 9y - (x + 2y) = 24.50 - 7\\7y = 17.5\\y = 2.5\\\Rightarrow x + 2(2.5) = 7\\x = 2$

Thus, $2 is the initial fare and $2.5 is the cost for every mile traveled.

3 0

2 years ago