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Oksana_A [137]
3 years ago
13

Which of the following math statements contain variable(s)? Check all that

Mathematics
1 answer:
Alex777 [14]3 years ago
6 0

Answer:

c and a

Step-by-step explanation:

a variable is something that isnt a number

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A school requires an entrance exam score that is in the top 3% of the population in order to be accepted. If an entrance exam ha
Assoli18 [71]
The answer is letter C.) 603.40

The minimum required score can solved using the equation
<span>MRS = mean + (zscore)(SD)

where z score of 0.03 is 1.88

</span>MRS = 500 + (1.88)(55)
MRS = <span>603.40
</span>
7 0
4 years ago
You can use the what of a quadratic equation to determine the number and type of solutions of the equation?
adoni [48]

You can use the <u>determinant</u><u> (square root)</u> of a quadratic equation to determine the number and type of solutions of the equation.

\sqrt{b^{2}-4ac} > 0    → 2 real solutions

  • if \sqrt{b^{2}-4ac} is a perfect square, then rational sol'ns
  • if \sqrt{b^{2}-4ac} is not a perfect square, then irrational sol'ns

\sqrt{b^{2}-4ac} = 0    → 1 real solution (double root)

\sqrt{b^{2}-4ac} < 0    → 2 imaginary(complex) solutions

3 0
4 years ago
Kayla wants to fence in a rectangular dog pen that is 30 ft by 40 ft How would you use wha
castortr0y [4]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the dimension of the dog pen = 30 ft by 40 ft.

Using the knowledge of geometry, that know that a rectangle has been built, the area of the pen should be :

Area of rectangle = Length * width

Area = 40 * 30

Area = 1200 ft²

Perimeter of rectangle = 2(Length + width)

Perimeter = 2(40 + 30)

Perimeter = 2(70)

Perimeter = 140 feets

Hence, area of the pen should be 1200 ft² and its perimeter or fencing should measure 140 feets

4 0
3 years ago
Sydney has a bag of stuffed animals containing, 1 elephant, 4 bears, 3 cats, and 2 dogs. If she randomly selects 1 stuffed anima
torisob [31]

Answer:

2/15

Step-by-step explanation:

Step one:

given data

sample space

1 elephant,

4 bears,

3 cats, and

2 dogs.

sample size= 1+4+3+2= 10

Required:

By selecting without replacement, the probability that she chooses a bear both times

Step two:

the first event= Pr(bear)= 4/10= 2/5

the second event, the sample size is now 9 and the number of bears is now 3

Pr(bear)= 3/9= 1/3

Hence, the probability that she chooses a bear both times

= 2/5*1/3

=2/15

3 0
4 years ago
Change the equation to slope intercept form and identity the slope and y-intercept -8x+2y=6
gulaghasi [49]

The answer is:

y=4x+3

The slope is: 4

The y-intercept is: 3

The explanation is shown below:

1. The slope intercept form of the linear equation is:

y=mx+b

Where m is the slope and b is the y-intercept.

2. Therefore, you must solve for <em>y</em>, as following:

-8x+2y=6\\y=\frac{8x+6}{2}\\y=4x+3

m=4\\b=3

8 0
3 years ago
Read 2 more answers
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