Tan C- I need help with this pleases help

What is the slope of the line that passes through the points (-10, 9) and (9, 9)

ivanzaharov [21]

Step-by-step explanation:

the answer is on foto

y = 9

7 0

3 years ago

How do you determine the degree of a power function from a table? When do you know you have successfully determined the degree o

svp [43]

Answer:

A power function is a function that can be represented in the form

$f(x)=kx^p$

where k and p are real numbers, and k is known as the coefficient.

Example:

f(x)=1 constant function.

f(x)=x identity function

f(x)=x^2 quadratic function.

1)

we use the method of differences, g(x+1)-g(x). Keep taking differences until they are all constant.

for example:

if we have a set of values as:

x g(x)

−2 −8

−1 −1

0 0

1 1

2 8

Now when we find the difference as:

x g(x) D1 D2 D3

-2 -8

-1 -1 1-(-8)=7

0 0 0-(-1)=1 1-7=-6

1 1 1-0 = 1 1-1=0 0-(-6)=6

2 8 8-1 = 7 7-1=6 6-0 = 6

As D3 is constant hence, the degree of the power function is 3.

2)

When we get a constant difference in the table of the difference method we will successfully get our degree.

4 0

3 years ago

An urn initially contains 5 white and 7 black balls. Each time a ball is selected, its color is noted and it is replaced in the

iragen [17]

Answer:

A. P("Select 2 black balls and then select 2 white balls")=35/768

Step-by-step explanation:

A. First, we have to get an idea of what our experiment talks about:

If I take a black ball, then we note its color and put it back to the urn with 2 more balls of the same color.

So, every time that we take a ball the quantity of balls in the urn changes with the probability that we had before replacing. The first case (that the first ball you select is black) would go like this:

P("Select a black ball first try") = 7 (number of black balls)/12 (total of balls in the urn)

P(B₁)=7/12

Then, the amount of balls in the urn rise to 14 (12 + 2 balls added) and now the quantity of black balls it´s 9 (7 + 2 added). The urn currently has 9 black balls and 5 white balls, of course:

P("Select black ball second try after getting a black ball before") = 9 (number of black balls)/ 14 (total of balls in the urn)

P(B₁B₂)=9/14

Notice that while we keep taking black balls, the quantity of white ball keeps constant and, for the probability that we take a white ball, we just consider the change in the number of balls in the urn

P(B₁B₂W₃)=5/16

And now, we consider the new white balls that are put in the urn (2 white balls, for a total of 18 and 7 white balls):

P(B₁B₂W₃W₄)=7/18

Because all these probabilities are chained and everything comes from the first ball we choose (if you use a tree diagram, they will be in the same branch), we multiply the probabilities to find the probability that all happens in the same experiment:

P(B₁)*P(B₁B₂)*P(B₁B₂W₃)*P(B₁B₂W₃W₄) = 7/12 * 9/14 * 5/16 * 7/18 = 2205/48384

P(B₁)*P(B₁B₂)*P(B₁B₂W₃)*P(B₁B₂W₃W₄)=35/768

And this is the final answer

7 0

3 years ago

The perimeter of a playing field for a certain sport is 214 ft. The field is a rectangle, and the length is 41 ft longer than th

Shtirlitz [24]

Answer:

width: 33 ft

length: 74 ft

Step-by-step explanation:

The perimeter of a rectangle is calculated by adding all of the sides together which includes two lengths and two widths. Since the formula for the length is given (l = 41ft + w) and the perimeter is given, then we can simply use the perimeter formula and substitute the value of length with its formula which would only leave us with one variable in the equation w. Now we must solve for w.

l + l + w + w = 214

(41 + w) + (41 +w) + w + w = 214 ... combine like terms

82 + 4w = 214 ... subtract 82 from both sides

4w = 132 ... divide both sides by 4

w = 33 ft

Finally, we can see that the value of the width is 33 ft . Now we plug this value into the formula for length to calculate its value.

l = 41 + w

l = 41 + 33

l = 74 ft

4 0

4 years ago

What is 6x7+4-3x(4-8)

I am Lyosha [343]

your answer should be 58 correct me if I'm wrong.

7 0

2 years ago