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3 years ago

Find the area and circumference of each circle.

Mathematics

1 answer:

ale4655 [162]3 years ago

4 0

Area = πr^2

Circumference = 2πr

Blue:

Area = 5^2 = 25π

Circumference = 2 * 5 * π = 10π

Pink:

Area = 6^2 = 36π

Circumference = 2 *6*π = 12π

White:

r = 3

Area = 3^2 = 9π

Circumference = 2 *3 = 6π

Red:

Area = 7^2 = 49π

Circumference = 2 *7 = 14π

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I need help please and thanks

lakkis [162]

Answer:

the answer is associative

Step-by-step explanation:

3 0

3 years ago

Find the inverse of this function <br> g(x)=2(x-3)^5

swat32

Here you go, let me know if you have a question about the steps

4 0

3 years ago

PLEASE HELP AND SHOW WORK PLEASE.

Vaselesa [24]

Inequalities help us to compare two unequal expressions. There exists no solution to the given set of inequalities.

<h3>What are inequalities?</h3>

Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed. It is mostly denoted by the symbol <, >, ≤, and ≥.

The given Inequalities can be solved as,

5 - x > 7

-x > 7 - 5

-x > 2

x < -2

2x + 3 ≥ 13

2x ≥ 10

x ≥ 5

As per the solution of the two inequalities, the value of x should be less than -2 but at the same time, it should be more than or equal to 5, which is impossible. Thus, there is no solution for the given inequalities.

This can be confirmed by graphing the two inequalities, as shown below. Since there is no area in common between the two inequalities, there exists no solution to the given set of inequalities.

Learn more about Inequality:

brainly.com/question/19491153

#SPJ1

4 0

2 years ago

Does anyone know how to do this?

kolezko [41]

Answer:

x = 1
y = -7

Step-by-step explanation:

The coefficients of x and y do not have any "nice" relations, so doing this by elimination is just "brute force" with no particular subtlety.

After multiplying by appropriate numbers, you want the coefficient of one of the variables in one equation to be the opposite of the coefficient of the same variable in the other equation. Here, we can get that by multiplying the first equation by 7 and the second equation by 2.

7(2x +3y = -19) ⇒ 14x +21y = -133

2(-7x +2y = -21) ⇒ -14x +4y = -42

Adding these equations with opposite x-coefficients eliminates the x-terms. (That is how the "elimination" method gets its name.)

(14x +21y) +(-14x +4y) = (-133) +(-42)

25y = -175 . . . . . . . . simplify

y = -7 . . . . . . . . . . . divide by 25

Substituting this value into the first equation gives ...

2x +3(-7) = -19

2x = 2 . . . . . . . . . add 21

x = 1 . . . . . . . . . divide by 2

The solution is x = 1, y = -7.

_____

<em>Additional comment</em>

The multipliers used in this process are essentially the coefficients of one of the variables, with one of them negated. Here, we chose the x-coefficients, because negating one of them gives two positive multipliers. We judge it easier to do the arithmetic using positive numbers.

Had we chosen to use the y-coefficients (3 and 2) for our multipliers, we would probably multiply the first equation by 2, and the second equation by -3. That way, the remaining x-coefficient would be positive.

Planning ahead is helpful, but not essential. It can help to avoid errors and make the work easier to do.

3 0

2 years ago

An art academy requires there to be 3 teachers for every 60 students 4 tutors for every 48 student how many students does the ac

vfiekz [6]

Answer:

per teacher = 20 students

per tutor = 12 students

72 students = 18 tutors

Step-by-step explanation:

Divide 60 by 3 to get 20

Divide 48 by 4 to get 12

Divide 72 by 4 to get 18

5 0

3 years ago