Evaluate πr² when r = 4.5. Use 3.14 for π.

1) 63.585
2) 199.6569
3) 14.13
4) 28.26

Answers

Answer 1

Answer:

A

Step-by-step explanation:


Related Questions

Find the exact value without a calculator. Tan 7pi/12=sin7pi/6/2 /cos7pi/6/2

Answers

Answer:

2+3

2+3

Step-by-step explanation:

Please helpppppp????

Answers

Answer:

hii

Step-by-step explanation:

which question do you want

HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ

Answers

Answer:

33

plsss mark brainliestt

Step-by-step explanation:

4(7)+23+2/8-3

28+25/5

28+5=33

Geometry PLEASE HELP

I’m right? Yes or no?

Answers

Answer:

B

Step-by-step explanation:

-2 + 12 = 10

Proportions-

Suppose you have a photograph that
has a height of 8 in and a width of 5
in. If you want to enlarge the
photograph so that it has a height of
32 in, how wide will it need to be?

Answers

Answer:

the width would be 20 inches

Step-by-step explanation:

32 = 8 × x

32 ÷ 8 = 4

so now multiply 5 by 4 which equals 20 inches

-3x + 6y = 18
-3x = 6y+14

a) What is the slope of the 1st equation?

b) What is the slope of the 2nd equation?

c) Are they parallel, perpendicular, or neither?

Answers

Step-by-step explanation:

-3x + 6y = 18

-3x = 6y+14

a) the slope of the 1st equation = -(-3)/6 = ½

b) the slope of the 1st equation = -3/6 = -½

c) they are niether parallel nor perpendicular

#1

-3x+6y=18-x+2y=62y=x+6y=x/2+3

slope=1/2

#2

-3x=6y+146y=-3x-14y=-1/2x-7/3

slope=-1/2

#3

Neither

f(x)=x2

g(x)=x−3

Find the composition of the two functions and show your process:

g(f(x))

Answers

Answer:

g(f(x)) = x² - 3

Step-by-step explanation:

g(f(x))=g(x²)

= x² - 3

Step-by-step explanation:

[tex]f(x) = {x}^{2} \\ g(x) = x - 3 \\ g(f(x)) = g( {x}^{2} ) = {x}^{2} - 3 \\ thank \: you[/tex]

find the constant term in the expansion of (x +1/x)'8​

Answers

[tex]\left( x+\frac{1}{x}\right)^{8} =\sum _{k=0}^{8}\binom{8}{k} \cdotp x^{8-k} \cdotp \left(\frac{1}{x}\right)^{k}\\\\\\ \begin{array}{l}\text{We\ wish\ to\ find\ } x^{0} :\\\\x^{8-k} \cdotp \left(\frac{1}{x}\right)^{k} =x^{0}\\\\\Longrightarrow x^{8-k} \cdotp x^{-k} =x^{0}\\\\\Longrightarrow \cancel{x}^{8-2k} =\cancel{x}^{0}\\\\\Longrightarrow 2k=8\\\\\Longrightarrow k=4\end{array}\\\\\therefore \binom{8}{4} \cdotp x^{4} \cdotp \left(\frac{1}{x}\right)^{4} =\frac{8!}{( 8-4) !\cdotp 4!}[/tex]

[tex]\binom{8}{4} \cdotp x^{4} \cdotp \left(\frac{1}{x}\right)^{4} =\frac{8\cdotp 7\cdotp 6\cdotp 5\cdotp \cancel{4!}}{\cancel{4!} \cdotp 4\cdotp 3\cdotp 2\cdotp 1}\\\\\binom{8}{4} \cdotp x^{4} \cdotp \left(\frac{1}{x}\right)^{4}=70\\\\\therefore \boxed{\boxed{\text{The\ constant\ term\ is\ } 70}}[/tex]

Out of all the trains currently at Middlebury Station, 5 are
headed east, 4 are headed west, and 9 are headed north.
What is the probability that a randomly selected train will be
heading north?

Answers

Answer:   1/2

Work Shown:

9 trains headed north

5+4+9 = 18 trains total

P(north) = (# of north)/(# total) = 9/18 = 1/2

Which rational number equalsIf (26)x = 1, what is the value of x? 0 point 1 with bar over 1?

Answers

Answer:

rational numbers equalslf 26×1=26the value of x =26ans

The sum of 7 times a number and 5 is the same as the difference of the number and 7. Find the number.

Answers

Answer:

pls mark me a brainliest

let x represent the number

7(x) + 5 = 7 - x

so we now group like terms

7x + x = 7 - 5

8x = 2

we now divide through by 8

[tex] \frac{8x}{8} = \frac{2}{8} [/tex]

[tex]x = \frac{1}{4} [/tex]

the final answer for the number is 1/4

Hope this will help

Have a good day

I need the answer to this plsss

Answers

Answer:

7 cm

Step-by-step explanation:

divide 56 by 8

area=length×width

width=area÷length

=56÷8=7 cm

PLEASE HELP meee!! ┗( T﹏T )┛ A point is plotted on the number line at 234 . A second point is plotted at −413 .


What is the length of a line segment joining these points?


Enter your answer as a simplified mixed number in the box.

Answers

Answer:

7 1/12

Step-by-step explanation:

i just know

Answer:

its -4 1/3

Step-by-step explanation:

The value of 2 · 5^2 is 100. True or False?
If n = 4, the value of the expression 28 - 12 + ÷ 2 is _____.
A) 15 B) 17 C) 17/2 D) 21

Please answer both!

Answers

1. False
2. There isn’t a variable, I cannot answer.

Given these angles: m∠1 = 53°, m∠2 = 27°.
These angles are
a. complementary
b. supplementary
c. neither complementary nor supplementary

Answers

Answer:

Complementary

Step-by-step explanation:

Because complementary angles sum up to ninety.

plz give me brainliest.

[tex]angle \: 53 + 27 = 90 \: degree[/tex]

These angles are
C- Neither complementary nor supplementary

Complementary angles = add up to 90 degrees
Supplementary angles add up to 180 degrees

However 53 + 27 = 80 degrees

Please Help! I will give you a lot of points if you do!

--This is Hindu-Arabic math so you have to use their number system

Answers

Answer:

47

Step-by-step explanation:

According to the number system 7 lines and 12 dots, a line is 5 and a dot is 1

you do 5*7+12 which is equal to 47

So the answer is 47,

Hope this helps!

First look at the chart and then convert each symbols to their respective numbers

[tex]\\ \tt\longmapsto 6+14+13+4+0+10[/tex]

Now add

[tex]\\ \tt\longmapsto 20+17+10[/tex]

[tex]\\ \tt\longmapsto 37+10[/tex]

[tex]\\ \tt\longmapsto 47[/tex]

PICTURE ABOVE ^^ PLEASE HELP

Answers

Answer: 4 /15

Step-by-step explanation:

[tex]0.2\overline{6}\\\\=0.2+\dfrac{1}{10} *\dfrac{6}{9} \\\\=\dfrac{1}{5} +\dfrac{1}{15} \\\\\\\boxed{0.2\overline{6}=\dfrac{4}{15} }\\[/tex]

The coach made the students run for 11 minutes 24 seconds and then walk for 5 minutes 48 seconds. What is the total time the students ran and walked?
The coach made the students run for 11 minutes 24 seconds and then walk for 5 minutes 48 seconds. What is the total time the students ran and walked?

Answers

Answer:

17minutes 10sec

Step-by-step explanation:

Total time running and walking

= time ran + time walked

= 11 minutes 24 sec + 5 minutes 48sec

= 16minutes 70sec

( now we know 60 sec = 1 min) so..

= 17minute 10sec

Miss Marple’sgrandfather passed away and she attended the reading of the will. The estate was valued at $8,424,000. It was decided that 23of the estate would be given to his children. Of the remainder, 15would be used to create a scholarship for mathematics majors at a local university and the rest would be divided evenly among his fourgrandchildren, of which Miss Marplewas one. a.How much money was used for the scholarship?[3 pts]b.What fractionof the estate did Miss Marpleend up inheriting?

Answers

The amount of money used for scholarship and the fraction of the estate gotten by Miss Maple are :

Scholarship amount = $561,600Fraction gotten by Miss Maple = 1/30

The entire fraction of the estate = 1/1

Fraction given to children = 2/3

Fraction left = Total - fraction given to children

Fraction left = 1/1 - 2/3 = 1/3

For scholarship :

1/5 of fraction left :

1/5 of 1/3 = 1/5 × 1/3 = 1 /15

Fraction Given to grand children :

1/5 - 1/15 = 2/15

Amount of money used for scholarship :

1/15 × 8424000 = $561,600

B.)

Since There are four grand children and it was equally shared among them:

Miss Maple is one of the grand children:

Fraction each grandchild gets is :

2/15 ÷ 4

2/15 ÷ 4/1

2/15 × 1/4 = 2/60 = 1/30

Hence, miss Maple will get 1/30

Learn more : https://brainly.com/question/18109354

Need Help!!!!!!!!!!!!!! Find the perimeter of the shaded figure.

Answers

[tex]\text{Perimeter}=2\cdot2 \ \text{units}+2\cdot7 \ \text{units}+10 \ \text{units}+6 \ \text{units}=\\\\=4 \ \text{units}+14 \ \text{units}+16 \ \text{units}=\boxed{34 \ \text{units}}[/tex]


Given g(x) = 4x-12
What is the value of x if g(x)= -24

Answers

Answer:

-3

Step-by-step explanation:

As I write this Reiner is standing at my side. He knows this is a love letter but he’s still sneaking glances. Honestly it’s no wonder the creep is still single.

That said, he did give me his word that he’d deliver this letter to you. He says he owes me for the time I doubled back to save him.

I’m sorry about that. I never would have imagined myself choosing those two over you.

I’m gonna die soon,

but I’ll die without regrets.

Or that’s what I’d like to say.

Truth is, I do have one.

It's that I never got to marry you...

With love, Ymir.

Write a compound inequality for the graph shown below.
Use x for your variable.

Answers

Step-by-step explanation:

what i understand is x is a axis

A forest contains 20 elks, of which 5 are captured, tagged, and then released. A certain time later 4 of the 20 elks are captured. What is the probability that 2 of these 4 have been tagged?

Answers

Answer:

Step-by-step explanation:

P{2 of 4 tagged}=(52)(152)(204)  

=0.2167

jennifer works at whataburger and earned 168.75 last week. If she worked 22.5 hours, how much does she earn per hour?

Answers

Answer:

7.5

Step-by-step explanation:

168.75 divided by 22.5 = 7.5

$7.50 dollars an hour.

7.50 x 22.5 = 168.75

7.5 168.75/22.5 =7.5 an hour

Determine the slope intercept form of the linear equation x/2-y+6=0

Answers

Answer:

General equation of a line:

[tex]y = mx + b[/tex]

then express in that form:

[tex] \frac{x}{2} - y + 6 = 0 \\ \\ - y = - \frac{x}{2} - 6 \\ \\ { \boxed{ \boxed{y = \frac{1}{2} x + 6}}}[/tex]

Help please help help please please please

Answers

Answer:

C. [tex] \frac{5}{4} [/tex]

D. [tex] \frac{6}{7} [/tex]

Step-by-step explanation:

C. [tex]2 - \frac{12}{16} [/tex]

[tex] = 2 - \frac{3}{4} [/tex]

[tex] = \frac{8 - 3}{4} [/tex]

[tex] = \frac{5}{4} [/tex]

D. [tex] \frac{20}{22} \times \frac{33}{35} [/tex]

[tex] = \frac{10}{11} \times \frac{33}{35} [/tex]

[tex] = 10 \times \frac{3}{35} [/tex]

[tex] = 2 \times \frac{3}{7} [/tex]

[tex] = \frac{6}{7} [/tex]

Whitewater Rentals has 39 canoes and 25 solo kayaks. The canoes rent for $45 for a six-hour trip. The solo kayaks rent for $49 for the same trip. One day 8 canoes and 4 kayaks were not rented. How much money was collected for rent-als that day?

Answers

$2,424 was collected for the day
31(45)=1395
21(49)=1029
$2,424

A recipe for pancakes calls for 2 eggs, 1 cup of flour, and 1/2 cup of milk.
a) How much flour do you need if you use 5 eggs?
b) How much milk do you need if you use 5 eggs?

Answers

Answer:

a: 2 1/2 cups of flour

b: 1 1/2 cups of milk

Answer:

I think 10 cup flour beacuse 1 cup flour is double than that of egg

A flower bed has the shape of a rectangle 15 feet long and 12 feet wide. What is its area in square yards? Be sure to include the correct unit in your answer.​

Answers

Answer:

[tex]180 ft.^2[/tex]

Step-by-step explanation:

[tex]15 ft.[/tex] × [tex]12 ft.= 180 ft.^2[/tex]

PLEASE HELP it’s been an hour and I can’t figure this out it’s about rate of change algebra 2 I can give brainlist

Answers

Answer:

part b is B

Step-by-step explanation:

not sure about the first part i dont want you to get it wrong i kind of forgot about it

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