The area of a circle is 9pi square meters. What is the circumference?

Answers

Answer 1

Answer: circumference of a circle=2πr

area=πr²

1) we calculate the radius of this circle.
Data:
area=9π m²
area=πr²

9π m²=πr²
r²=9π m² / π
r²=9 m²
r=√(9 m²)=3 m

2) we calculate the circumference:
circumference=2πr=2π(3 m)=6π m

Answer: the circumference is 6π m

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What is the equation of the line that passes through the points (–2, 2) and (0, 5)?

Answers

Answer:

The equation of line is given by

$y=(3)/(2)x+5$

Step-by-step explanation:

We have been given the points (–2, 2) and (0, 5) and we have to find the equation of the line.

Let us first find the slope of the line using the formula

$m=(y_2-y_1)/(x_2-x_2)$

On substituting the values, we get

$m=(5-2)/(0+2)$

$m=(3)/(2)$

Now, using the point slope form, the equation of line is given by

$y-y_1=m(x-x_1)\ny-2=(3)/(2) (x+2)\n\ny-2=(3)/(2)x+3\n\ny=(3)/(2)x+5$

Therefore, the equation of line is given by

$y=(3)/(2)x+5$

Hello,

The slope= (5-2)/(0+2)=3/2

Equation is y-2=3/2(x+2) or y=3x/2+5

PLS HELP
Evaluate the expressions:
h(x)=12/x
h(-2)
h(a)

Answers

Answer:

h(-2) = -6, h(a) = 12/a

Step-by-step explanation:

h(-2)

It says that you are supposed to do 12 divided by the number in the parentheses, so you have 12 / -2 = -6.

h(a)

Again, you have to do 12 divided by the number in the parentheses, so you have 12/a.

Hlelp plaese i made tpyos cuz i stresesd

Answers

If the veterinarians at Aquarian feed the zebrafish 7 pounds of food each day for 17 days, they would have used a total of 119 pounds of food. Therefore, the amount of food left over would be 5 pounds .

Step-by-step explanation:

7 x 17 = 119

124 - 119 = 5

Answer:

What is the sum of 8 yards and 5 feet?

Answers

The sum is a mathematical operation by which we get the result for sum of 8 yards and 5 feet, 29 foot.

What are Units ?

To measure and compare various things we use one term which is known as a unit. When all of the measuring units are the same, comparison is simple. Depending on their intended usage, different units can be categorized.

For example, for length measurement we use units like:- Yard, Feet, inch, miles.

Given that,

we have to add two quantities, which have different units but dimension is same for both quantities,

L₁ = 8 yards

L₂ = 5 feet

It is known that,

1 yard = 3 feet

So, L₁ = 8 yards = 24 foot

L = L₁ + L₂

L = 24 + 5 foot = 29 foot

So, The sum is 29 foot

To know more about Units check:

brainly.com/question/30168372

#SPJ5

1 yd = 3 ft
8 • 3 = 24
8 yd = 24 ft

5 + 25 = 29 ft

Your answer is 29 ft

Half of a number decreased by 8 is -3

Answers

Answer: 10

Step-by-step explanation: work your way backwords. first add 8 to get 5. Then half is 1/2, so you then multiplt by 2. hope this helped! sorry for short explanation

PLSSSSSSSSSS HELPPPPPP MEEEEEEEEEEE!!!!!!!!!! BIGGGGGGG PARTTTTTTTT OFFFF GRADEEEEE!!!!!!!!!!!!!!Two hikers are 22 miles apart and walking toward each other. they meet in 4 hours. find the rate of each hiker if one hiker walks 1.1 mph faster than the other.

Answers

Answer:

pls give brainliest (answer at bottom)

Step-by-step explanation:

Let's call the rate of the slower hiker "x" mph.

The faster hiker walks 1.1 mph faster than the slower hiker, so their rate is "x + 1.1" mph.

Now, we know that distance = rate × time. In this case, both hikers are walking towards each other, so we can add their distances to get the total distance of 22 miles:

Distance of the slower hiker + Distance of the faster hiker = Total distance

4x + 4(x + 1.1) = 22

Now, let's solve for x:

4x + 4x + 4.4 = 22

Combine like terms:

8x + 4.4 = 22

Subtract 4.4 from both sides:

8x = 22 - 4.4

8x = 17.6

Now, divide by 8 to find the rate of the slower hiker:

x = 17.6 / 8

x = 2.2 mph