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defon
3 years ago
5

For each function, do the following: a) state the name of the function, b) identify the independent and dependent variable, c) i

dentify the rule that assigns exactly one output to the very input, and d) evaluate the function for the given input value.

Mathematics
1 answer:
andrew-mc [135]3 years ago
4 0
<h3>Answer</h3>

Given in the question the equation

y = x² - 2x + 6

Name

a quadratic polynomial or a polynomial of degree 2

Ind. var

An input value of function is the independent value = x

Dep. var

The output value of function is the dependent value, as it depends on the value of the input = y

Rule

a function is a rule that assigns to each input exactly one output.

Evaluation

when x = -3

  y = (-3)² - 2(-3) + 6

     = 21

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Find the area of a circle if its circumference is 10 pi
AleksandrR [38]

Answer:

25π

Step-by-step explanation:

pi's symbol is π, which will be used sometimes to make it easier later

The circumference is equal to diameter multiplied by pi. (Diameter is the length across the circle, radius the center of the circle to an edge point aka. half the diameter, and circumference is the edge length aka. perimeter of the circle.)

We can then remove the pi off the 10, as the diameter multiplied by pi is the circumference, so the diameter is 10.

Half of 10 is 5, the radius.

The formula for area of a circle is radius squared times pi, remember easily by π r ^2

We can plug in the radius into the formula to get

π 5 ^2

And finish it by solving the square root to get

π 25

25π

8 0
2 years ago
PLEASE HELP been stuck on this for a while
marysya [2.9K]

Answer:

I believe it's D but I'm not 100 percent sure. I hope this helped I'm sorry I couldn't help more <3

4 0
3 years ago
What is the first term of the geometric sequence presented in the table below?
Leto [7]
Fron the table given:

A3 = 112,
A8 = - 3,584

An = A1 *r ^ (n-1)

=> A3 = A1 (r^2) = 112

A8 = A1(r^7) = - 3,584

=> - 3584 / 112 = (r^7) / (r^2)

=> (r^5) = - 32

=> r = - 2

=> A1 (- 2)^2 = 112

=> A1 = 112 / 4 = 28

Answer: a1 = 28
8 0
3 years ago
Alabama has about 2.51 million acres of cropland Florida has about 1.15 times as much cropland as Alabama how much crop land doe
aev [14]

Answer: Florida has 2.8865 million acres of cropland .

Explanation:

Since we have given that

Length of acres of cropland Alabama has = 2.51 millions

According to question, we have Florida has about 1.15 times as much cropland as Alabama has ,

So,

Length of acres of cropland Florida has  is given by

2.51\times 1.15=2.8865\text{ million acres }

So, Florida has 2.8865 million acres of cropland .

8 0
3 years ago
Identify the phrase that cannot be described by the same absolute value as the other three. Explain your reasoning.
r-ruslan [8.4K]
The answer would probably be 18 degrees below normal because the absolute values of the rest are 8 not 18 which is the absolute value of 18 degrees below normal.
6 0
3 years ago
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