Determine the circumference of a circle with a radius of 4 in. Use 3 as a estimate for \PiΠ

Answers

Answer 1

Answer:

24

Step-by-step explanation:

im not sure why 3 is estimat efor pi, usually 3.14

2pi*r

2*4*3 = 24


Related Questions

OH MY GOD HELPPPPPPPPPPPPPP

Answers

Answer:

? = -36

Step-by-step explanation:

When you raise an exponent to an exponent, the resulting power is a product of the two exponents.

For this problem, you can solve for the missing value by writing:

[tex]?*1/3=-12[/tex]

Divide both sides by 1/3 to isolate the missing value.

[tex]?=\frac{-12}{1/3}[/tex]

Solve for ?.

[tex]?=-36[/tex]

Brainliest to right answer

Answers

I think it would be neither, sorry if I’m wrong-

10/9 in simplest form pls

Answers

[tex]1\frac{1}{9}[/tex]

A fitness club charges its members a one time fee of 40$ and a monthly rate of 25$ what is this in q expression

Answers

y = 25x + 40 is the expression.

HELP!!
ASAP
Worth 10 points

Answers

Answer:

integers

Step-by-step explanation:

they wouldnt be whole numbers because there are opposites involved, but they wouldnt be just classified as rational because they have the requirements to be classified as integers

The answer is an integer.

An integer is any whole number (negative or positive) that is not either a decimal or a fraction.
A whole number is all the positive whole numbers including 0.
A Rational Number can be made by dividing two integers.
(An integer is a number with no fractional part.)


You are running in a 26-mile race.
You have run 17 miles so far.
What is the ratio of the miles you have left to the total number of miles in the race?

Answers

Answer:

17:26

Step-by-step explanation:

You can't simplify 17 therefore it would be 17:26 ratio.

I hope this helps! Please give me brainllest!

never mind i forfeit

Bro what happened my brainliest is gone

can you help me with this

Answers

Answer:

C.

Step-by-step explanation:

Can y’all please help me because my teacher assign a lot of work

Answers

Answer: okay just try your best to do it

Step-by-step explanation:

Got it?

what is the ordered pair to y=7x-2

Answers

It would be (0,-2) I believe

Is the relation a function?
{(-2, 1), (-8, 9), (9,-8)}
A. Yes
OB. No

Answers

Answer:

Yes it is.

Step-by-step explanation:

Please help me answer this

Answers

Answer: 7/8

10-2/12-4= 7/8

Step-by-step explanation:

Answer:

the answer might be number 3

Jessica borrows $1500 at 7% simple interest per week. If she ends up owing $2235, how may weeks did it take her to pay back the loan?
a. 6
b. 7
c. 8
d. 9
e. 10

Answers

Answer:

7 Weeks

Step-by-step explanation:

Each week is 105 because 1500*.07=105

Then through the process of elimination I found it would take 7 weeks.

Your answer is going to be 7 weeks

Which of the following equations has a solution that is negative?





a. – 0.4x + 4 = – 1.6



b. – 0.4(x + 1.6) = 1.6



c. – 0.4(– x + 1.6) = 1.6



d. – 0.4x – 4 + 1.6x = – 1.6

Answers

Answer:

b. – 0.4(x + 1.6) = 1.6

Step-by-step explanation:

The equation with negative solution is -

- 0.4(x + 1.6) = 1.6

What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given are the equations as shown in the question.

The equation with the negative solution are -

- 0.4(x + 1.6) = 1.6

- 0.4x - 0.64 = 1.6

- 0.4x = 1.6 + 0.64

- 0.4x = 2.24

x = - (2.24/0.4)

Therefore, the equation with negative solution is -

- 0.4(x + 1.6) = 1.6.

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please helpp!
right answer only please

Answers

Answer:

Slope

Step-by-step explanation:

Slope= Change in y/ Change in x

a. Find the amplitude.
b. Find the period.
c. Find the vertical shift.
d. Find the horizontal shift.
e. Find the number of cycles between 0 and 2π.
f. Find the equation of the graph.

You must show all of your work to receive credit.

Answers

Answers:

a) Amplitude = 2b) Period = pic) Vertical shift = -2, which means it has been shifted down 2 units.d) Horizontal shift = 3pi/8, this shifting is to the right.e) There is  one   cycle between 0 and 2pi.f) The equation of the graph is y = 2*sin(2(x-3pi/8))-2

========================================================

Explanations:

Part (a)

The highest point is when y = 0 and the lowest point is when y = -4. The vertical distance between the peak and valley is 4 units, which cuts in half to 2. This is the amplitude. It's the vertical distance from the center to either the peak or valley.

Note: Amplitude is always positive as it measures a distance.

---------------------

Part (b)

For x > 0, the first valley or lowest point occurs between 0 and pi/4. It appears to be the midpoint of the two values. So that would be (0+pi/4)/2 = pi/8.

The next valley occurs between pi and 5pi/4. Compute the midpoint to get (pi+5pi/4)/2 = (4pi/4+5pi/4)/2 = (9pi/4)/2 = 9pi/8

So we have the graph go from one valley x = pi/8 to the next valley over x = 9pi/8. This is a distance of pi units because 9pi/8-pi/8 = 8pi/8 = pi

The graph repeats itself every pi units, so the period is pi.

---------------------

Part (c)

The midline is normally through y = 0, aka the x axis. However, the graph shows the midline is through y = -2. This means the graph has been shifted down 2 units.

---------------------

Part (d)

This will depend on whether you use sine or cosine. This is entirely because cosine is a phase-shifted version of sine, and vice versa. I'll go with sine.

The parent sine function y = sin(x) goes through the origin (0,0)

However, as part (c) mentioned, we shifted the graph 2 units down. So we have y = sin(x)-2. But plugging x = 0 into this leads to the point (0,-2)

This doesn't match what the graph says. The graph shows the point (3pi/8, -2) on the red curve. The x coordinate 3pi/8 is the midpoint of pi/4 and pi/2

This must mean we need to shift the sine graph 3pi/8 units to the right.

---------------------

Part (e)

Start at the lowest point when x = pi/8. If you start the cycle here, then it ends when x = 9pi/8. See part (b).

So far we've completed one cycle. If we start at x = 9pi/8, then the next valley or lowest point is slightly beyond or to the right of x = 2pi. This means we run out of room and we haven't completed a full cycle.

Overall, one full cycle is between 0 and 2pi.

---------------------

Part (f)

Again I'm going to use sine instead of cosine. Refer back to part (d).

The general sine curve equation is

y = A*sin(B(x-C))+D

where

|A| = amplitudeB handles the period, specifically T = 2pi/B where T is the period. We can solve for B to get B = 2pi/TC = horizontal phase shiftD = vertical shift, and ties together with the midline equation

In this case, we found that

|A| = 2T = pi leads to B = 2pi/T = 2pi/pi = 2C = 3pi/8D = -2

So,

y = A*sin(B(x-C))+D

will update to

y = 2*sin(2(x-3pi/8))-2

which is one way to express the equation of the red curve. Optionally you can distribute the 2 through to (x-3pi/8).

find the value of x and y

Answers

Answer: y is 40 x is 60

Step-by-step explanation:

Answer:

x=40 and y =5

Step-by-step explanation:

30% of what distance is 5.8 mi?

Answers

Answer: 1.74 mi

Step-by-step explanation:

30% = 0.3

5.8 × 0.3 = 1.74

What is the equation of the line that passes through the point (-2, -8) and
has a slope of 3?

Answers

Answer:

y = 3x - 8

Step-by-step explanation:

Write an equation that passes through (0, 20) and (4, 80) ??

Answers

Answer:

M= 15

Step-by-step explanation:

Hope it’s right

The dance committee at Jefferson High School decides to charge students different prices for dance tickets depending on whether they are a student at Jefferson or at another school. A student attending Jefferson pays $5, whereas a student attending a different school pays $10. The dance committee didn't make different kinds of tickets, and they lost track of how many of each kind of ticket they sold. They know they sold a total of 500 tickets and they brought in $3,135. How many Jefferson and non-Jefferson students came to the dance?

Answers

Answer:

30

Step-by-step explanation:

The number of Jefferson students and the number of non-Jefferson students if A student attending Jefferson pays $5, A student attending a different school pays $10 is 373 and 127 respectively.

What is the equation?

Equation: A declaration that two expressions with variables or integers are equal. In essence, equations are questions and attempts to systematically identify the solutions to these questions have been the driving forces behind the creation of mathematics.

Given:

A student attending Jefferson pays $5,

A student attending a different school pays $10,

The total number of tickets = 500,

The total money earned = $3135,

Write the equation of the given statement as shown below,

x + y = 500

5x + 10y = 3135

Here, x is the number of Jefferson students and y is the number of non-Jefferson students,

Solve the equation by elimination method as shown below,

y = 127,

x = 500 - 127 = 373

Thus, the number of Jefferson students is 373 and the number of non-Jefferson students is 127.

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Which term could be put in the blank to create a fully simplified polynomial written in standard form?

8x3y2−_____+3xy2−4y3

Answers

Answer: It’s A on edge

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

on edge 2021. so sorry i don’t have a better explanation

Make x the subject of the formula 3 b ( 2 x − a 2 ) = 5 d − 7 g x

Answers

Answer:

[tex]x=\frac{5d+6ba}{6b+7g}[/tex]

Step-by-step explanation:

Answer:

x = (3a²b + 5d) / (6b + 7g)

Step-by-step explanation:

Given:

3b( 2x − a² ) = 5d − 7gx

Solving for x:

6bx - 3a²b = 5d - 7gx6bx + 7gx = 3a²b + 5d(6b + 7g)x = 3a²b + 5dx = (3a²b + 5d) / (6b + 7g)

What is the simplified expression in the box by combing like terms and removing zero pairs?

-4 ( 2x+ 4) + 5

Answers

9514 1404 393

Answer:

  -8x -11

Step-by-step explanation:

Use the distributive property to eliminate parentheses. Then combine the constant terms.

  -4(2x +4) +5

  = -8x -16 +5

  = -8x -11

[tex]\sf \longmapsto-4 ( 2x+ 4) + 5[/tex]

[tex]\sf \longmapsto(−4)(2x)+(−4)(4)+5[/tex]

[tex]\sf \longmapsto−8x+−16+5[/tex]

[tex]\sf \longmapsto(−8x)+(−16+5)[/tex]

[tex]\sf \longmapsto−8x+−11[/tex]

[tex]\sf \longmapsto - 8x - 11[/tex]

I have 2 dice. If I roll both dice, what is the probability of rolling a 5 and then an even number

Answers

Answer:

1/6 and 1/2 or 3/6

Step-by-step explanation:

there's a 1 in 6 chance that u would roll a 5 but there's a higher chance of getting an even number as 3 out of 5 of those numbers are even so that would be 3/6 or simplify to 1/2

12-(x-3)=8
what is the value of x

Answers

Answer: 7

Step-by-step explanation: First distribute the subtraction sign (negative one) to x and -3. Now we have 12 -1x + 3 = 8. Now combine 12 and 3 then subtract 15 from both sides to get -1x = -7. Now divide both sides by -1 to get x = 7.

Hope this helps!

Answer:

Step-by-step explanation:

12-(x-3) =8

12 -x +3 = 8

15 - x = 8

- 15.    -15

-x = -7

x = 7  

Identify the slope and y-intercept. If the equation is in standard form, you may need to switch it to slope-intercept form. Sketch the graph of each line.
4x + 3y = -9

Answers

vertical intercept: (0, -3)

Im StUcK HeLp Me
-1 (4x + 2y)

Answers

Answer:

-4x - 2y

Step-by-step explanation:

Hope it works

Answer:

Step-by-step explanation:

−1(4x+2y)

=(−1)(4x+2y)

=(−1)(4x)+(−1)(2y)

=−4x−2y            

Hope this helps u out

True or False, The value pi/12 is a solution for the equation 4 cos^2(4x)-3=0

Please explain

Answers

Answer:

Yes, π/12 is a solution.

Step-by-step explanation:

Calculator --> sin(π12)=sin15∘=0.26 . √2−√32=√0.272=0.522=0.26 .  Uhmm... i dont rlly know how to explain it.. its complicated for me to word it without making it non confusing.

The statement 'The value [tex]\frac{\pi}{12}[/tex]  is a solution for the equation [tex]4~cos^2(4x)-3=0[/tex] ' is True.

What is an equation?

"It is a mathematical statement which consists of equal symbol between two algebraic expressions."

For given question,

We have been given an equation [tex]4~cos^2(4x)-3=0[/tex]

We need to check whether [tex]\frac{\pi}{12}[/tex]  is a solution for the equation.

Substitute [tex]x=\frac{\pi}{12}[/tex] in equation [tex]4~cos^2(4x)-3=0[/tex]

[tex]\Rightarrow 4~cos^2(4\frac{\pi}{12} )-3=0\\\\\Rightarrow 4~cos^2(\frac{\pi}{3} )-3=0\\\\\Rightarrow 4~cos^2(\frac{\sqrt{3} }{4} )-3=0\\\\\Rightarrow 4~\frac{3}{4}-3=0\\\\ \Rightarrow 3-3=0\\\\\Rightarrow 0=0[/tex]

This means,  [tex]\frac{\pi}{12}[/tex]  is a solution of the equation [tex]4~cos^2(4x)-3=0[/tex]

Therefore, the statement 'The value [tex]\frac{\pi}{12}[/tex]  is a solution for the equation [tex]4~cos^2(4x)-3=0[/tex] ' is True.

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Given a triangle ABC has angles of A = 30 and B = 70, what is the smallest side?

Answers

Answer:

A=30 is the smallest side

Step-by-step explanation:

A+B+C= 180

30+70+C=180

100+C=180

C=180-100

C=80

Therefore, A=30 is the smallest side of the triangle...

will got 17 out of 25 questions correct on his driving test what percent correct did he get on the test?

Answers

Answer:

68%

Step-by-step explanation:

[tex]\frac{17}{25} = \frac{68}{100}[/tex]  [tex]\frac{68}{100}[/tex] = 68%

I hope this helps!

Answer: 68%

Explanation: divide 17/25 and get 0.68 which would be 68% have a nice day (:
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