3 1/2 pound = 7/2 pounds.
We know that the dog eats 7/2 (3.5) pounds every 21 days since there are 7 days in a week and Mr.Z only buys dog food every 3 weeks.

Set up a proportion. 3.5 lb = x 
 21 days 365 days

Cross multiply and divide. 3.5 lb x 365 days = 1277.5 / 21 days = 60.83 lb

3 0

3 years ago

Evaluate the function. h(x) = x2 – 5x; find f(4).

Reika [66]

If you mean h(4)
h(4)=(4)*2 -5(4)
=8-20
=-12
The answer will be-12

8 0

3 years ago

If anybody now this pls help my homework due TOMORROW

Nezavi [6.7K]

Answer:

Part A: D. $y = (x + 1)(x+3)\\$

Part B: C. $3x(x-3) = 0\\$

Step-by-step explanation:

For part A) we just have to plug in 0 for x and solve for y until we find the equation that says 3 is the value for y when x is 0. For purposes of speeding up the process the correct answer is D. I will show how to check for it now.

The equation: $y = (x + 1)(x+3)$

Now plug in 0 for x.

$y = (0 + 1)(0+3)\\$

Now solve.

y = (1)(3)

y = 3

This proves that this is the correct answer.

For part B) we just have to plug in the give values for x separately and check for each value of x that it equals 0. For the purpose of speeding up the process the correct answer is C. I will show how to check for it now.

The equation: $3x(x-3) = 0$

Now plug in x for 0 and solve:

$3* 0 (0-3) = 0\\$

$0(-3) = 0\\$

$0 =0\\$

This equation is true, now we check for the other value of x, 3.

$3*3(3-3) = 0\\$

$9(0) = 0\\$

$0 =0\\$

This is also true so that means this is the correct answer.

6 0

3 years ago

The function f determines the cost (in dollars) of a new Honda Accord in terms of the number of years t since 2000. That is, f (

xenn [34]

Complete Question

The function f determines the cost (in dollars) of a new Honda Accord in terms of the number of years t since 2000. That is, f ( t ) represents the cost (in dollars) of a new Honda Accord t years after 2000. Use function notation to represent each of the following. The cost (in dollars) of a new Accord in 2006?

A. How much more a new Accord costs in 2013 as compared to the cost of a new Accord in 2010?

B. A new Accord in 2013 is how many times as expensive as a new Accord in 2010?

C. In 2016 , some cars cost $980 more than the cost of a new Accord.How much does the other cars cost (in dollars)in 2016?

Answer:

The cost of a new Accord in 2013 compared to 2010 is z = f(13) - f(10)

The magnitude at which the cost of a new Accord in 2013 is greater than the cost in 2010 is

$x = \frac{f(13)}{f(10)}$

The cost of the other cars is 2016 is r = 980 + f(16)

Step-by-step explanation:

From the question we are told that

The cost (in dollars) of a new Honda Accord is f(t)

Where t is number of years after 2000

The cost of the Honda Accord at 2013 is

f(2013 - 2000) = f(13)

The cost of the Honda Accord at 2010 is

f(2010 - 2000) = f(10)

So the cost difference between 2013 and 2010 is mathematically evaluated as

z = f(13) - f(10)

Let constant at which the cost of Honda Accord in 2013 is greater than its cost at 2010 be x

f(13) = x f(10)

=> $x = \frac{f(13)}{f(10)}$

The cost of the Honda Accord in 2016 is mathematically evaluated as

f(2016 - 2000) = f(16)

Now the cost of these other cars is mathematically evaluated as

r = 980 + f(16)

7 0

3 years ago