All categories

3 years ago

Using the formula c=2r, find the circumference with diameter of 28inches. Round your answer to the nearest inch.

Mathematics

1 answer:

Furkat [3]3 years ago

5 0

Radius is equal to 1/2 the diameter. The radius is 14 (28/2=14)

With your formula:

c=2*14

c=28

HOWEVER I believe you meant

c=2(pi)r

In which

c=2(pi)14

c=28(pi)

In this instance for pi we can use 3.14 since we will be rounding anyway, so

c=28*3.14

c=87.92

Rounded to be

c=88

Note:

If we didn’t round pi out to 3.14 we would have gotten 87.964594...

You might be interested in

what is the absolute value of -8? Use the number line to help anwser the question HELP MEEEE A: -16. B= -8 C= 8 D= 16

GREYUIT [131]

Answer:

Step-by-step explanation:

It wo be B= -8

8 0

2 years ago

Joyce rented a booth at a carnival at a cost of $95 to sell handmade beaded necklaces. The cost of making and packaging each bea

xz_007 [3.2K]

Answer:

To make a profit of at least $500 she must sell at least 12 necklaces

Step-by-step explanation:

Joyce rented a booth at a carnival at a cost of $95 to sell handmade beaded necklaces. The cost of making and packaging each beaded necklace was $15. If Joyce sells the beaded necklaces at $35 each then we have to find beaded necklaces she sell to make a profit of at least $500.

The costs side of the equation, we have:

Let no. of necklaces that she sell are x

∴ The cost of making and packaging x beaded necklace is $15x

Total Cost = 95+15x

Now, Joyce sells the beaded necklaces at $35 each. Therefore, selling price will be $35x

To make a profit of at least $500 the equation can be written as

$95+15x+500\leq35x$

$595\leq50x$

⇒ $x\geq11.9=12$

Hence, to make a profit of at least $500 she must sell at least 12 necklaces

7 0

3 years ago

Read 2 more answers

Sharonda is plotting quadrilateral PQRS on the graph below. She will plot the fourth and

lana [24]

Answer:

11 units

Step-by-step explanation:

Length of side PS can be calculated using the distance formula, $d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$

Where,

$P(-2, 5) = (x_1, y_1)$ (the coordinate of P is gotten from the graph)

$S(9, 5) = (x_2, y_2)$ (given)

$PS = \sqrt{(9 - (-2))^2 + (5 - 5)^2}$

$PS = \sqrt{(11)^2 + (0)^2}$

$PS = \sqrt{121} = 11 units$

3 0

3 years ago

28 elementary schools to 16 middle schools write the ratio in simplest form

AnnyKZ [126]

28 to 16

Divide both numbers by 4.

7 to 4

3 0

3 years ago

Read 2 more answers

The second step in the process for factoring the trinomial is to:

emmainna [20.7K]

Example: the second step in the process for factoring the trinomial x^2-3x-40 is to: Well you really should find the sum of the factors of −40 (not 40) 
But before you can do that, you need to LIST the factors of −40 (not 40) 
−1 * 40 
−2 * 20 
−4 * 10 
−5 * 8 
−8 * 5 
−10 * 4 
−20 * 2 
−40 * 1 

NOW we find the sum of the factors of −40 
−1 + 40 = 39 
−2 + 20 = 18 
−4 + 10 = 6 
−5 + 8 = 3 
−8 + 5 = −3 
−10 + 4 = −6 
−20 + 2 = −18 
−40 + 1 = −39 

Then we choose the factors of −40 whose sum is −3 ---> −8 and 5 
x^2 − 3x − 40 = (x − 8) (x + 5) 

So FIRST step is B, SECOND step is C, and final step is factoring. 
What Rita did was combine these 2 steps together, which you will learn to do as you get better at factoring.

8 0

3 years ago