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Marina CMI [18]
3 years ago
13

Using the expression 5x2 + 7, match the following items. 1. 2 variable 2. 5 coefficient 3. 7 exponent 4. x constant

Mathematics
2 answers:
postnew [5]3 years ago
6 0
5x^2 + 7

the coefficient is 5
the variable is x
the exponent is 2
the constant is 7
BARSIC [14]3 years ago
3 0

Answer:

Variable: x

Coefficient: 5

Exponent: 2

Constant: 7

Step-by-step explanation:

We have been given an expression 5x^2+7. We are asked to match each term with correct option.

Variable: We know that variable is a value that is not consistent. It can change. The variables are mostly defined as letters like a,b ,c, x or y.

We can see that in our given expression the variable is x.

Coefficient: We know that a coefficient is a quantity multiplied by the variable. We can see that 5 is multiplied by x, therefore, 5 is coefficient.

Exponent: Exponent means a quantity or variable raised to a power. We can see that x is raised to second power, therefore, exponent is 2.

Constant: A quantity which remains same or which never changes.

We can see that 7 is constant for our given expression a sit remains same.

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Anne is running on a trail at an average speed of 6 miles per hour beginning at mile marker 4. John is running on the trail at t
Sphinxa [80]

Answer:

John is running faster.

Step-by-step explanation:

Given that:

Average Speed of Anne = 6 miles per hour

Speed of John can be represented in the table below:

\begin{center}\begin{tabular}{ c c}Time (hours) x & Mile Marker y \\ 0 & 1  \\  0.5 & 4.5  \\   1 & 8  \\ 1.5 & 11.5  \\\end{tabular}\end{center}

To find:

Who is running faster of the both i.e. Anne and John?

Solution:

Here, to find the faster runner we can compare the average speed of both the runners.

We are given that, average speed of Anne = 6 miles per hour

We will have to calculate the average speed of John to find the faster runner.

<em>Average speed</em> can be calculated by dividing the total distance traveled with the total time taken.

Total distance traveled by John = 11.5 - 1 = 10.5 miles

Total time taken by John = 1.5 hours

Average speed of John = \frac{10.5}{1.5} = 7\ miles/hr

Clearly Average speed of John is greater than that of Anne's.

Therefore, <em>John runs faster</em>.

6 0
3 years ago
How do you solve this
PilotLPTM [1.2K]
Since 3=30/10, (30+1)/10=31/10. 31s/10=(30+1)/5 ( we get 30 because 5*6=30) = 31/5. Multiplying both sides by 10, we get 31s=62 (since 5 is a factor of 10, we can do 10/5 =2 and multiply 2 by 31). Dividing both sides by 31, we get s =2
7 0
3 years ago
Write each percent as a fraction in simplest form.<br> 45%
Ainat [17]

Answer:

9/20

Step-by-step explanation:

Percent means out of 100

45/100

Divide the top and bottom by 5

9/20

5 0
3 years ago
Read 2 more answers
The histogram below displays the distribution of 50 ages at dHere are the number of hours that 9 students spend on the computer
andreyandreev [35.5K]

Answer:

9

Step-by-step explanation:

There are 9 students who spend the following number of hours in a typical day on the computer.

3,3,5,7,7,9,9,9,12

The mode is the number that is of the highest frequency in any given set of values.

The mode number of hours is the highest number of hours spent on the computer.

The number 9 occured the most times. Therefore the mode hour is 9

6 0
3 years ago
A high school play cost an up front $30,000 to produce, plus an additional cost as of $1000 for each perfromance. Every sold out
Zarrin [17]
Interpreted by text, we have got 2 function; 1 that describes the costs for ther performance and the other demonstrates the revenue.
f(x)= 1000x + 30 000
g(x)= 2500x
Two ways to work out when the school breaks on the
production of the play.
1- set these functions in geogebra and observe where cross each other. This value will be the answer as g goes higher than f
2- solve as an equation=> set f(x)=g(x) and work out the and afterward set the x value in f or g to find out the y coordinate
5 0
3 years ago
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