Find the circumference and the area of a circle with diameter 3 ft. Use the value 3.14 for pi, and do not round your answers. Be sure to include the correct units in your answers. ​

Answer: 252 in

Step-by-step explanation:

Answer:

61

Step-by-step explanation:

37+24=61

Answer:

[tex]x^2 - 2x + 10[/tex], option B

Step-by-step explanation:

Complex numbers:

The most important relation that involves complex numbers is given by:

[tex]i^2 = -1[/tex]

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

[tex]ax^{2} + bx + c, a\neq0[/tex].

This polynomial has roots [tex]x_{1}, x_{2}[/tex] such that [tex]ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})[/tex], given by the following formulas:

[tex]x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}[/tex]

[tex]x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}[/tex]

[tex]\bigtriangleup = b^{2} - 4ac[/tex]

In this question:

The solutions are:

[tex]x_1 = 1 - 3i, x_2 = 1 + 3i[/tex]

We have to find the polynomial. All option have [tex]a = 1[/tex]. So

[tex](x - (1 - 3i))(x - (1 + 3i)) = x^2 - x(1 + 3i) - x(1 - 3i) + (1 - 3i)(1 + 3i) = x^2 - x -3ix - x + 3ix + 1^2 - (3i^2) = x^2 - 2x + 1 - 9i^2 = x^2 - 2x + 1 - 9(-1) = x^2 - 2x + 10[/tex]

The correct answer is given by option b.

Answer:

negatively charged

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

6(2.3)-(3.5+2.3)

13.8-5.8

=8

Answer:

16

Step-by-step explanation:

Answer:

(x - 50 / 4) = y

Step-by-step explanation:

On photo

To find the inverse function, you will have to write n in terms of c (which means number of visits as function of monthly cost).

The inverse function would be:

[tex]n = \dfrac{c-50}{4}[/tex]

Inverse function of given function.

The inverse function of f is a function of f which can remove the effect of f on its input.

Inverse is only possible if the function f is bijective (one to one correspondence, which means one input to one output uniquely and one output is connected to only one input by mapping f)

Since the given function is a linear function and not a  vertical line, thus, one input n uniquely maps to one output cost and one cost uniquely is obtained by one and only one value of n.

[tex]cost = 50 + 4n\\ 4n = cost - 50\\\\ n = \dfrac{\text{c - 50}}{4} \text{\: (assuming cost to be denoted by c)}[/tex]

Thus, we have the inverse function of given function as:

[tex]n = \dfrac{c-50}{4}[/tex]

Learn more about inverse functions here:

https://brainly.com/question/1422702

Answer:

2 pound bags and have a remeinder of 1/10

Step-by-step explanation:

Answer:

She can fill 2 bags for her lunch and will have 1/10 pound left.

Step-by-step explanation:

It is easier if there is a common denominator, so I made the 2/5 into 4/10, so it is the same as 9/10 pound she bought.

4/10 is one bag, and if you double that, it is 8/10 pounds used. This is two bags of raisins for her lunch.

9/10 - 8/10 leaves 1/10 pound remaining, and not in a bag.

Answer:

Well uh that's a good question I actually don't know but ill see

Step-by-step explanation:

Answer:

Step-by-step explanation:

6.

Answer:

5×5×6 in²

Step-by-step explanation:

The figure is made up of six squares that are 5in by 5in each.

Answer:

-57

Step-by-step explanation:

13,8,3,-2 (decreasing by 5)

13,8,3,-2,-7,-12,-17,-22,-27,-32,-37,-42,-47,-52,-57.

The 15th term is -57.

Ace

Answer:

D. [tex] 2\sqrt {133}[/tex]

Step-by-step explanation:

[tex] {x}^{2} = {18}^{2} + ( {12}^{2} + {8}^{2} ) \\ \\ {x}^{2} = 324 + (144 + 64) \\ \\ {x}^{2} = 324 + 204 \\ \\ {x}^{2} = 528 \\ \\ x = \sqrt{532} \\ \\ x = \sqrt{4\times 133} \\ \\ x = 2\sqrt {133}[/tex]

Answer:

gain

Step-by-step explanation:

Because a naira is 0.0026 of a dollar.

did it help?

Answer:

The correct answer is A, 14%.

Step-by-step explanation:

All you have to do is take the 30% chance of you HAVING to stop at the first light and find the chance that you won't have to stop at the first light, which is 70%, or .7. Then you take the chance of having to stop at the second light which is 80%, and find the probability of NOT having to stop there, which is 20%, or .2. Then you multiply the probabilities of not having to stop, which equals  .14.

Answer:

C 1/4

Step-by-step explanation:

2021 on edge

Answer:

29

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

..........................

Answer:

In science, a formula is a concise way of expressing information symbolically, as in a mathematical formula or a chemical formula. The informal use of the term formula in science refers to the general construct of a relationship between given quantities.  

Step-by-step explanation:

Answer:

false

Step-by-step explanation:

whole numbers don't include negative numbers / integers

Answer:

the answer would be false

Step-by-step explanation:

This is because whole numbers are nothing but a set of positive integers which do not contain fractions and decimal values, but starts from zero. The negative integers like -5, -4 … are also not considered as whole numbers. They are represented as {0, 1, 2, 3…}.

lol im da queen of copy and past btw i hoped this helped

Answer:

its the second expression

Step-by-step explanation:

Answer:

B. 6w^2  Second option

Step-by-step explanation:

You are multiplying, therefore when a digit is next to a letter in a math expression. It means to multiply

Answer:

A watermelon weighs about 3 (grams /(kilograms) 3.

Step-by-step explanation:

Answer:

6,450 g

Step-by-step explanation:

Since there are 1000 grams in 1 kilogram, you multiply 6.45 kg x 1000 g.

6.45 x 1000 g equals 6,450 grams. Move the decimal 3 times to the right because there are 3 zeroes in 1000.

You always move your decimal to the right when multiplying decimals.

Answer:

sqrt7/4

Step-by-step explanation:

sin is opposite/hypotenuse which means sqrt63/12 then sqrt63=3sqrt 7 and simplifies get (sqrt7)/4 Done!

Answer:

Find f(g(x)):

f (-2x) = 2

Find g(f(x)):

g (2) = -4

Step-by-step explanation:

Set up the composite function and evaluate.

Answer:

12(x+0.7)

Step-by-step explanation:

a number=x

the sum of a number and seven tenths is (x+0.7)

12 times that is 12(x+0.7)

Hope I helped!

Answer:

20

Step-by-step explanation:

14/63=2/9=20/90

I agree with Alice because you do not know how much money Jill and Jack had before they went shopping. If they had the same amount of money Jill would have spent more because 40 percent is greater than 1/3.

Step-by-step explanation:

Thank me later

Answer:

8,4

Step-by-step explanation:

Step 1: Find the slope of the line.

Step 2: Use the slope to find the y-intercept.

Step 3: Use steps 1 and 2 to write the answer.

I will explain these steps by looking a several examples. Please understand that there are often several

different ways to complete each math problem, but I have found through the years that students are most

successful when the do problems the same way each and every time they attempt the problem. If you

know a different way to find the answer that is great, but I am going to show how to do the problem one

way and use the same technique everytime I see this problem.

Example 1: Find the equation of the line passing through the points (–1, –2) and (2, 7).

Step 1: Find the slope of the line.

To find the slope of the line passing through these two points we need to use the slope

formula:

( )

( )

So the slope of the slope of the line passing through these two points is 3.

Step 2: Use the slope to find the y-intercept.

Now that we know the slope of the line is 3 we can plug the slope into the equation and

we get:

y = 3x + b

Next choose one of the two point to plug in for the values of x and y. It does not matter

which one of the two points you choose because you should get the same answer in either

case. I generally just choose the first point listed so I don’t have to worry about which

one I should choose.

(–1, –2) → –2 = 3(–1) + b Multiply to simplify the problem.

–2 = –3 + b Solve for b and you will have the y-intercept.

b = 1

Answer:

I think the answer is b or c

Step-by-step explanation:

please dont come at me if they are wrong

Answer: 32 cm

Step-by-step explanation:

Answer:

All of the sides of the square are 8 cm. So the prementer would be 32 cms

Step-by-step explanation:

To find the sides of the square, you got to think what x what = 64. This shows you that 8 x 8 is 64. and since it is a square, all of the sides are the same. So 8+8+8+8 = 32 or you can do 8 x 4 = 32

Sorry for any spelling mistakes.

Answer:

1) selling price is 1.07 multiplied by whatever they paid for the car

2) selling price is $1.35

Step-by-step explanation:

2) to get 80% markup on 0.75 you can multiply 0.75 x 1.8