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slamgirl [31]
4 years ago
7

Dylan and Abigail are both driving along the same highway in two different cars to a stadium in a distant city. At noon, Dylan i

s 269 miles away from the stadium and Abigail is 329 miles away from the stadium. Dylan is driving along the highway at a speed of 45 miles per hour and Abigail is driving at speed of 57 miles per hour. Let DD represent Dylan's distance, in miles, away from the stadium tt hours after noon. Let AA represent Abigail's distance, in miles, away from the stadium tt hours after noon. Write an equation for each situation, in terms of t,t, and determine the number hours after noon, t,t, when Dylan and Abigail are the same distance from the stadium.
Mathematics
2 answers:
Tju [1.3M]4 years ago
8 0
Your profile picture is very uncool man
inn [45]4 years ago
7 0

Answer:

D= 269-45t  A=329-57t

5 hours

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Marlene rides her bike at a rate of 16 miles per hour. The time in hours that she rides is represented by the variable t, and th
White raven [17]

Let

t--------> the time in hours

d-------> the distance in miles

we know that

d=16t

this is a linear equation that represent the scenario

in this equation the independent variable is the time t and the dependent variable is the distance d

The distance's equation in function notation is equal to

f(t)=16t

Using a graph tool

see the attached figure

The domain of the function is the interval----------> [0,∞)

t\geq0

The range of the function is the interval------->  [0,∞)

f(t)\geq0

<u>Statements</u>

<u>a) The independent variable, the input, is the variable d, representing distance</u>

The statement is false

Because the  independent variable is the variable t

<u>b) The distance traveled depends on the amount of time Marlene rides her bike</u>

The statement is true

Because the distance's equation in function notation is equal to

f(t)=16t

<u>c) The initial value of the scenario is 16 miles per hour</u>

The statement is false

Because 16 represent the rate or  the slope of the linear equation

<u>d) The equation t = d + 16 represents the scenario</u>

The statement is false

Because, the scenario is represented by the function f(t)=16t

<u>e) The function f(t) = 16t represents the scenario</u>

The statement is true

8 0
3 years ago
Read 2 more answers
Use the digits 1,3,4,and 7 to create two whole numbers whose product is estimated to be about 600
blagie [28]
34 x 17  (round the 2 numbers)
30 x 20
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Also, 34 x 17 = 578, which rounds to 600


The answer is 34 and 17

7 0
3 years ago
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Which expression is equivalent to (x^2 -8) - (-2x^2+4)?​
Phoenix [80]

Answer:

D) 3x^2 - 12

Step-by-step explanation:

Using PEMDAS;

There is no need to evaluate the part of the equation (x^2 - 8) because is no need to, as it is already in its simplest form.

We must evaluate the part of the equation continuing with, "- (-2x^2+4)," as it is not in its simplest form.

Evaluating "- (-2x^2+4)":

Step 1: Distributing the negative

Once distributing the negative symbol amongst the values within the parenthesis according to PEMDAS, we get "2x^2 - 4" as the product.

Step 2: Consider the rest of the equation to evaluate

Since the part of the equation is still in play here as it is a part of the original equation to be solved, we must evaluate it as a whole to get the final answer.

Thus,

x^2 -8 + 2x^2 - 4 = ___

*we can remove the parenthesis as it has no purpose, since it makes no difference.

Evaluating for the answer, we get,

x^2+2x^2 + (-8 - 4) = 3x^2 - 12

Hence, the answer is D) 3x^2 - 12.

3 0
4 years ago
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Nana76 [90]
The formula is
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B=1-0.20=0.8
T 5 years

So the value of assets after 5 years is
V (5)=600,000×0.8^(5)=196,608
7 0
3 years ago
Please help me i can’t do it thank you
Marina86 [1]
25% of 12=3
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90 of 200=180
25 of 28=7
45 of 80=36
8 0
4 years ago
Read 2 more answers
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