Mathematics High School

Which measurement is a good estimate for the area of a circle if the diameter is 18 feet?

A) 56.5 ft²

B) 113.0 ft²

C) 254.3 ft²

D) 1017.4 ft²

Answers

Answer 1

Answer:

If the diameter is 18 then the radius r=9 so the area is:

πr2=81π≅254.469

Step-by-step explanation:

Explanation:

The area of a circle is given by the formula πr2 where r is the radius.

Related Questions

A circle has a secant and a tangent that intersect outside of the circle. If the measure of ∠ is 29° and the measure of is 45°, then determine the measure of

Answers

Answer:

CD = 103°

Step-by-step explanation:

The secant- tangent angle BAD is half the difference of the intercepted arcs, that is

[tex]\frac{1}{2}[/tex] ( CD - BD ) = 29° ( multiply both sides by 2 )

CD - BD = 58°

CD - 45° = 58° ( add 45° to both sides )

CD = 103°

Out of 200 students, 10 had a cleft chin.
What percent of students had a cleft chin?

Answers

Answer:

chin

Step-by-step explanation:

stan kim namjoon for good grades and clear skin

Answer:

5 percent

Step-by-step explanation:

200 of 10 was 5 percent

Which of the following coordinates represent a point on the y-axis? Choose all that apply.
A. left-parenthesis 0 comma negative 4 right-parenthesis
B. left-parenthesis 1 comma 1 right-parenthesis
C. left-parenthesis negative 2 comma 0 right-parenthesis
D. left-parenthesis 0 comma 3 right-parenthesis

Answers

Answer:

the kahn anwser is c

Step-by-step explanation:

(45x + 5) ÷ 5 in standard form using distributive property (i dont want any links thanks)

Answers

Answer:

9x + 1

Step-by-step explanation:

45x + 5

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

     5

The answer is 9x+1.

Of the people at a movie theater, 30% are watching a romantic comedy. How many people are
at the movie theater if 78 people are watching a romantic comedy?
A. 194
B. 226
C. 260
D. 278
PLEASE IM IN A TEST

Answers

Answer: C

Explanation

Can someone help me with this question?

Answers

Answer:1/3

Step-by-step explanation:

gradient equals

[tex]\frac{Y2-Y1}{X2-X1}[/tex]

=[tex]\frac{5-3}{10-4}[/tex]

=[tex]\frac{2}{6}[/tex]

=[tex]\frac{1}{3}[/tex]

What is the following quotient?
5 sqrt 11 - sq rt 3

Answers

The given rational function is

We need to rationalize the denominator by multiplying both the numerator and the denominator by the conjugate of

which is

When we rationalize we obtain:

The denominator is now a difference of two squares:

We apply this property to get


This simplifies to

Or

1 Does the following graph represent a function? Explain why or why not! 6 5 4 3 1 1 X -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 LI ollab​

Answers

Answer:

NO

Step-by-step explanation:

so basically if you take all the ordered pairs

(-4,6) (-3,2) (-1,-2) (2,0) (2,3) (3,3) (4,-2) (5,1)

You'll see that there are two 2's or two of the same x values thus it makes a straight line if you wanted to do that but also no x value can have two y values

Hope this helps!

Please help me i need help ​

Answers

Answer:

sin is .6, Cos is .8 and tan is .75

Step-by-step explanation:

Ez

ill mark brainlist plss help

Answers

Answer:

multiply 0.15 times 26.40 which is $3.96 which is C $4 since they say ESTIMATE A 15% TIP

Step-by-step explanation:

Gasoline recently cost 82.5¢/ L. If Tonya’s car holds 58.5 L, how much should it cost to fill the tank?

Answers

Answer:

Gasoline per liter = 82.5¢

Tonya's car has a capacity of 58.5 L

Cost = 58.5 x 82.5

Cost = 4826. 25¢

Help me will mark branliest

Answers

Answer: One point.

Step-by-step explanation:

Hope this helps! Have a good day! :)

The difference of two numbers is 19. Their sum is 27. Find the numbers

Answers

Answer:

23 and 4

Step-by-step explanation:

x-y=19

x+y=27

x=19+y

(19+y)+y=27

19+2y=27

2y=8

y=4

x-4=19

x=23

23+4=27

23-4=19

what is y
27 y + 5 = -9

Answers

Answer:

y = [tex]\frac{-14}{27}[/tex]

Step-by-step explanation:

27y + 5 = -9 -> subtract -9 and 5

(-9) - 5 = -14

27y = -14 divide 27 and -14

(-14)/27

You are then left with

y = [tex]\frac{-14}{27}[/tex]

a²-2ab+b²÷ a²+b² by simplication​

Answers

Answer:

a²−2ab+b²/a²+b²

Step-by-step explanation:

A copy machine produces 66 pages of print in 66 seconds.

​ How many pages are produced per second?

Answers

Answer:

1

Step-by-step explanation:

66 pages in 66 seconds.  66/66 = 1

Answer:

1 page per second...

Step-by-step explanation:

did you really just ask us that question...?? if you print 66 oages in 66 seconds, one page is made per second.. you must be joking

Can someone plz helpp ?Ill give brainliest IF correct !

Answers

Answer:

-31 (I think )

Step-by-step explanation:

you place -6 wherever you see x into the equation so it should look like this f(-6)=6(-6)+5 which then should give you f(-6) = -36 +5 then again do the math and you should get f(-6)= -31

I hope im right :/

The answer is B, -31

4,-4 on the coordinate plane


would 4 go on the x-axis or y-axis bc im du mb :)

Answers

4 would go on the x axis because it always starts like this (x, y)

If there is one obtuse angle, how many angles are
acute?
a 2
b 3
C 1
d 6

Answers

Answer: a .2

Step-by-step explanation: A triangle is 180 degrees.  If one angle is obtuse, it is more than 90 degrees.  That leaves the two remaining angles having to add up to less than 90 degrees combined.  So both have to be acute.

Someone please help me with this ASAP I have only 4 minutes!

Answers

Answer:

A

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

yw

i think i know but i need help. just the equation will be fine

Answers

Answer:

[tex]3a\geq 300[/tex]

Step-by-step explanation:

HELPPPP!!!! ASAPPPP!!!

Which number could be used as a counterexample to show that the conjecture “All even numbers are divisible by 4” is false?
12
10
8
24

Answers

Answer:

10

Step-by-step explanation:

10/4 = 2.5(fraction)

12/4 = 3

8/4 = 2

24/4 = 6

The numbers 2, 6, 10, and so on are not divisible by the 4 but they are even numbers. Then the correct option is B.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

The statement is given below.

“All even numbers are divisible by 4”

The statement “All even numbers are divisible by 4” is false.

Because the numbers 2, 6, 10, and so on are not divisible by the 4 but they are even numbers.

Not all even numbers are divisible by 4, but some numbers are divisible by 4.

Then the correct option is B.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Use the Pythagorean Theorem to find the missing length and then round the result to the nearest tenth. a = 7, b = , c = 8

Answers

Substitute the values into the formula and simplify the expression. Hope this helps!

An online clothing store had 450,082 visitors in May, 450,566 visitors in June, and 405,987 visitors in July. What is the order of visitors for these months from greatest to least? Separate these with a semicolon

Answers

Answer:

450, 566 ; 450,082 ; 405,987

Step-by-step explanation:

Number of visitors in may = 450,082

Number of visitors in June = 450,566

Number of visitors in July = 405,987

Arranging the number of visitors from greatest to least(In descending order).

450,566 > 450,082 > 405,987

450, 566 ; 450,082 ; 405,987

Please please please help me I need a 80 to pass

Answers

Answer:

fb=7 units

Step-by-step explanation:

Answer:

If they’re both equal to each other in length and both pentagons, then I think the answer is 7 units.

At The Family Farm it costs $4 to enter the barn and an
additional $2 for each animal you want to feed. Which
expression represents the cost of feeding y animals?

Answers

Answer:

4 + 2y = x

________________________________

At last week's football game, 125 tickets were sold. This week 225 tickets were sold. What percent of the
number of tickets sold last week is the number of tickets sold this week?
%

Answers

You have to do 225 plus 125 divided by 2 times 100 and that is your percent

Answer:

The correct answer is 180%.

30 + a = 40, a = ?

(please answer)

Answers

Your answer is gunna be 10

Answer:

The answer is 10

Step-by-step explanation:

Move all terms not containing  a  to the right side of the equation.

~Hoped this helped~

~Brainiliest?~

(3x+1)(3x^2-6x-8) in standard form

Answers

Answer:

 

3s3x2+6x+4.3x2+6x+4

What is the measurement of arc BE?

Answers

The answer is 134 degrees
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