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4 years ago

A box contains twenty cards numbered 1 through 20. One card is to be randomly drawn from the box.

Mathematics

2 answers:

Alex4 years ago

8 0

The answer would be C

Crank4 years ago

3 0

C.7/20
Hope i helped
let me know if i did not

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2 1/4 × 3 1/5 need the answer in its simplest form please

tatyana61 [14]

7 1/5 is the answer

6 0

3 years ago

Read 2 more answers

Reasoning Graph the set of ordered pairs (0, 2). (1.4), (2,6). (3.8). Determine whether the relationship is a linear function Ex

polet [3.4K]

Answer:

No, it does not. See below.

Step-by-step explanation:

Lets find out the linear equation that passes trough (-2, 0) and (0, -6).

We know every linear equation has the form: y = mx + b

Where m is the slope on the curve and b the independent term.

We know that, given 2 points (x1,y1) and (x2,y2) we can find the slope m as:

m = (y2-y1)/(x2-x1)

In our case lets replace (x1,y1) and (x2,y2) by (-2, 0) and (0, -6) (notice it could be done in the inverse sense where (-2, 0) is (x2,y2) and (0, -6) is (x1,y1) ). So, our slope is:

m = [-6 - 0] / [0 - (-2)]

m = -6/2 = -3

So, we have a downward linear function with slope -3, this is:

y = -3x + b

Now, for finding b just replace any of the 2 points given in the equation. Lets replace (-2, 0):

0 = -3(-2) + b

0 = 6 + b

Subtracting 6 in both sides:

-6 = b

So, our independent term is -6 and the function is:

y = -3x - 6

Now lets see if this linear eqution passes trough (2,6). If it does, we can replace the values on the equation. Replacing x by 2:

y = -3(2) - 6 = = -6 - 6 = - 12

So, in our equation, we x is 2 y is -12, and not 6 as in the point (2,6). So, our equation does not passes trough (2,6)

5 0

3 years ago

Given that B is between A and C. If AB=x, BC =2x-3, and AC = 30. Find x and bc

Artemon [7]

Answer:

x=11

BC=19

Step-by-step explanation:

AB+AC=AC this is because B is in between A and C. So now we can substitute all of the line segments, so we have

x+2x-3=30 Now you add 2x and x

3x-3=30 Now you add 3 to both sides so you can get 3x alone on one side

3x=33 Now you divide both sides by 3 so you get the x alone on one side

x=11

The next step is to substitute x to find BC.

BC=2x-3 Substitute the x with 11

BC=2(11)-3 Then multiply 2 and 11 because that is the rule with parenthesis

BC=22-3 then subrtact the 3 from 22

BC=19

You can check your work by doing AB+BC=AC

11+19=30 substitute your answers and then add them together

30=30

3 0

3 years ago

1. expand 4³

arlik [135]

Answer:

1. 64

2. 7

3. 1, 2, 4, 8, 16

5. 36

6. 5

7. 13

4 0

3 years ago

Which graph shows the end behavior of the graph of f(x) = 2x^6 – 2x^2 – 5?

Allushta [10]

Answer:

Refer the attached graph below.

Step-by-step explanation:

Given : Function $f(x) = 2x^6 -2x^2 -5$

To find : Which graph shows the end behavior of the graph of the given function?

Solution :

We have given the function $f(x) = 2x^6 -2x^2 -5$

To find the end behavior of the graph,

We need to find the degree of the given function and the leading coefficient.

Degree of the given function is the highest power of the variable.

Highest power of x is 6.

Degree = 6 ( an even degree)

Leading coefficient is the coefficient of highest power term.

We have highest power term is $2x^6$ .

So, the leading coefficient is 2 (Positive number)

For even degree and positive leading coefficient, end behavior is

$x \rightarrow \infty, f(x) = +\infty\\\\x \rightarrow -\infty, f(x) = +\infty\\$

Refer the attached figure below.

3 0

3 years ago