A circle has a diameter of 30 inches. What is the area of the circle?
Answers
the radius is half the diameter so 30/2=15
pi is 3.14
so the area=3.14•(15^2)=706.5in^2
d Diameter
in
Unit Conversion:
d=30in
Using the formulas
A=πr2
d=2r
Solving forA
A=1
4πd2=1
4·π·302≈706.85835in²
Related Questions
Write the coordinates of the vertices after a rotation 180° counterclockwise around the origin.
Answers
Answer: swap u and v I don't think w will change
Step-by-step explanation:
-
A person takes part in a medical trial that tests the effect of a medicine on a disease. Half the people are given medicine and the other half are given a sugar pill, which has no effect on the disease. The medicine has a 60% chance of curing someone. But, people who do not get the medicine still have a 10% chance of getting well. There are 85 people in the trial and they all have the disease. Talwar takes part in the trial, but we do not know whether he got the medicine or the sugar pill. Draw a tree diagram of all the possible cases. What is the probability that Talwar gets cured?
Answers
Answer:
Talwar has 35% chance of getting cured
ILL GIVE BRAINLIEST.
It’s simple I’m just dumb! If you could help thank you! (If you could explain too that’d be nice, you don’t have to though)
Answers
Answer:
D
Step-by-step explanation:
There is only one variable in this situation which means you can rule out A and C, B is wrong because it said it wants Y, so D is your answer!
Answer:
The answer would be 'D': y=6.5x
Step-by-step explanation:
Since y would be the total amount, it'd be weird if it was x=6.5y since the part would be more than the total. Plus, for every roll, it sells for $6.50, and when it multiplies by x (the amount sold) you would get y (the total).
Questions Of The Day!
Answers
Answer:1. 16 1/2 2. 4/5 3. 1 2/3
Step-by-step explanation:
Brady drew a rectangle with an area of 35.52 square centimeters. Staci drew a rectangle with an area of 61.44 square centimeters. How many more square centimeters is Staci's rectangle than Brady's?
a. 25.08
b 25.92
c 26.08
d 26.82
Answers
Answer: \(61.44cm^{2} - 35.52cm^{2} = 25.92cm^{2}.\)
Step-by-step explanation:
Pleas help with step by step. Thank you
Answers
Answer:
ok
Step-by-step explanation:
Urgent!!!
Use the numbers and units from the list to find as many equivalent measurements as you can.
For example, you might write “30 minutes is 1/2 of an hour.” You can use the numbers and units more than once.
Numbers: 1, 12, 0.4, 60, 50, 1/2, 40, 0.01, 3 1/3, 30, 0.3, 24, 1/5, 6, 2
Answers
Answer: Hi
Step-by-step explanation: not sure
Which equation below can be used to find the number of hours, h, that D. J. will need to work in order for the money he saves from each option to be the same? 250+10h=16h250 plus 10 h is equal to 16 h 45(250+10h)=34(16h)4 fifths times open paren 250 plus 10 h close paren is equal to 3 fourths times 16 h 34(250+10h)=45(16h)3 fourths times open paren 250 plus 10 h close paren is equal to 4 fifths times 16 h 45(250+10h)≤34(16h)4 fifths times open paren 250 plus 10 h close paren is less than or equal to 3 fourths times 16 h
Answers
Answer:
either the last one or the second one
Step-by-step explanation:
hope this helped im not the best math person but i try :)
can someone help? please explain how to do it and get it right (i will give brainliest to best answer)
Answers
Explaination: 2006 divided by 80 (all the citizens added up) is 25.075. Multiply it by 38, it’s 952.85. Rounded up, its 953
Please I need help on this and its due tonight! :( I just need this!
Answers
Answer:
see below
Step-by-step explanation:
y-intercept: (0,1)
rate of change: 2/3
Y-intercept: I found this because the y-intercept is when x=0, and where the line crosses through the y-axis. So, we can see that the y-intercept is (0,1)
Rate of change: The rate of change is another word for slope, or rise/run, so we can see, from point (0,1), that the rise is 2 units up and 3 units to the right to another point where the line crosses a whole number point.
Hope this helps :)
Rate if change: 2/3
what is 7 is ... of 12 ?
Answers
Answer:
calculate the percentage of 7: divide 7 by 1% value (0.12), and you get 58.33% - it's your percentage grade.
Step-by-step explanation:
Someone help me with these immediately
Answers
Answer:
Step-by-step explanation:
1.48+103+c=180(sum of the interior angles of a triangle)
151+c=180
c=180-151
c=29 degree
2.angle D+angle E=90(in complementary angles sum of two agles is 90 degree)
52+angle E=90
angle E=90-52
angle E=38 degree
3.angle F+angle G
=145+35
=180 degree
yes they are supplementary angles because in supplementary angle sum of two angles is 180 degree)
4.a.radius=diameter/2
=16/2
=8 ft
b.circumference=πd
=3.14*16
=50.24 ft
c.area=πr^2
=3.14*(8)^2
=3.14*64
=200.96 ft^2
6.yes 3,4 and 5 forms a triangle because the sum of two first number is greater than third side.
Answer:
hope it helped :)
Step-by-step explanation:
1)
In ΔABC , sum of angles = 180°
∠A + ∠B + ∠C = 180
48 + 103 + ∠C = 180
∠C = 29°
2)
∠D and ∠E are complementary angles. That is sum of ∠D and ∠E = 90
∠D + ∠E = 90°
52 + ∠E = 90
∠E = 38°
3)
∠F + ∠G = 145 + 35 = 180°
Since sum of angles is 180° , they are supplementary angles.
4)
a) diameter , d = 16 ft => radius = 16/2 = 8ft
b) circumference, c =π d = 3.14 x 16 = 50.24ft
c) Area = π \(r^2\) = 3.14 x 8 x 8 = 200.96 square feet
5)
a) ∠M = 72°
b) \(\frac{15}{5} = \frac{8}{x}\)
\(x = \frac{8 \times 5}{15} = \frac{40}{15} = \frac{8}{3}\)
6)
For the given lengths to be a triangle. sum of squares of small sides must be equal to square of larger length. That is,
\(5^2 = 4^2 + 3^2\\25 = 16 + 9\\25 = 25\)
And it's true. So the lengths make a triangle.
I need an answer for this pls
Answers
Answer:
The GREATER the line the STEEPER the PROPORTIONALITY of X you know you have a constant proportionality when your graph begins at the ORIGIN we can write the equation as y = K x. We find the constant of proportionality by DIVIDING the CONSTANT coordinate by the Y coordinate from an ordered pair.
Step-by-step explanation:
I think I'm not sure you should probably get a second opinion to be sure.
Answer:
The GREATER the line the STEEPER the PROPORTIONALITY of X you know you have a constant proportionality when your graph begins at the ORIGIN we can write the equation as y = K x. We find the constant of proportionality by DIVIDING the CONSTANT coordinate by the Y coordinate from an ordered pair.
(wat she said :))
Clare went to a concession stand that sells pretzels for $3.25, drinks for $1.85, and bags of popcorn for $0.99 each. She bought at least one of each item and spent no more than $10.
Could Clare have purchased 2 pretzels, 2 drinks, and 2 bags of popcorn? Explain your reasoning.
Answers
$3.25+$1.85+$0.99= 6.09
$6.09- $10.00= $3.91
Answer: No Clare can't purchased 2 pretzels, 2 drinks, and 2 bags of popcorn
Step-by-step explanation:
Given:
Pretzel = 3.25
Drinks = 1.85
Popcorn = 0.99
No more than $10
To Find:
Could Clare have purchased 2 pretzels, 2 drinks, and 2 bags of popcorn?
Solution:
2 pretzels = 3.25x2
2 Drink = 1.85x2
2 Popcorn = 0.99x2
3.25x2 = 6.5
1.85x2= 3.7
0.99x2= 1.98
Then add all the answer up
6.5+3.7+1.98= 12.18
Therefore, Clare can't purchased 2 pretzels, 2 Drink, and 2 bags of popcorn.
She can buy 2 pretzels, 1 Drink, and 1 bag of popcorn and Cost 9.34 and still have 0.66
The speed limit is 50 miles per hour. Kyle is driving to a baseball game that starts in 2 hours. Kyle is 130 miles away from the baseball field.
If Kyle drives at the speed limit, will he arrive in time?
*Use words and numbers to explain your answer.*
Answers
Answer:
in 2 hours he would of went 100 miles with a 50 miles an hour speed limit and if he was 130 miles away he would have 30 miles remaining, meaning he would not of made it in time.
Step-by-step explanation:
Answer:
no we will not make it in time
Step-by-step explanation:
he's 130 miles away, going 50 mph. he would have to go a minimum of 65 mph to make it in time. Going 50 mph, he's only going to drive 100 miles.
GIVING OUT BRAINLIEST / 70 POINTS TO ANSWER
Answers
Answer:
7a+b-9c+17d
Step-by-step explanation:
-5 ( a-2b+3c -4d) - (-3) (4a -3b+2c-d)
Distribute
-5a+10b-15c+20d+12a-9b+6c-3d
Combine like terms
7a+b-9c+17d
7a + b - 9c + 17d
step-by-step explanation
(- 5)( a - 2b +3c - 4d ) - (-3)( 4a - 3b+2c - d )
- 5( a - 2b + 3c - 4d ) - (-3)( 4a - 3b + 2c - d)
Using Distributive property
- 5a + 10b - 15c + 20d + 12 a - 9b + 6c - 3d
Arranging like terms together
- 5a + 12a + 10b - 9b -15c + 6c + 20d -3d
7a + b - 9c + 17d
HELP FIRST GET BRAINLLEST Measure the difference between the lower quartile of Data Set A and the lower quartile of Data Set B. Round to the nearest tenth when performing all operations.
Answers
Answer:
29
Step-by-step explanation:
To find the lower quartile you need to split it into 2 by finding the median
Set A: 73, 75, 79, 81, 84, 85
Set B: 47, 49, 51, 51, 55, 56
Now you have to find the median of each
A: 80
B: 51
Lastly, you subtract and get 29
Which equation, when solved, results in a different value of x than the other three?
7 3
3-4
= 20
37
4+x= -20
-
001
x-
3
= 20
نا انا
(9) -8 -201-4)
Answers
Complete the point-slope equation of the line through (1,0) and (6,3). Use exact numbers. y-(-3)=
Answers
Answer:
point-slope equation of the line through (1,0) and (6,-3). Use Exact Numbers
Step-by-step explanation:
Answer:
Step-by-step explanation:
\((1,0) =(x_1,y_1),\\ (6,3)=(x_2,y_2))\\\\\frac{y-y_1}{x-x_1}= \frac{x_2-x_1}{y_2-y_1} \\ \\\\\frac{y-0}{x-1} = \frac{6-1}{3-0} \\\\\frac{y-0}{x-1} = \frac{5}{3}\\\\3(y-0)=5(x-1)\\\\3y -0 =5x-5\\\\3y = 5x-5+0\\\\3y = 5x-5\\\\\frac{3y}{3} = \frac{5}{3} x= \frac{5}{3} \\\\y = \frac{5}{3} x= \frac{5}{3}\\\)
Find the LCM of 6 and 15.
Answers
Answer:
LCM of 6 and 15 = 30
Step-by-step explanation:
LCM = 3 × 2 × 5 = 30
In case you were wondering, the GCD is 3.
Hope this helps!
Terrance has $100 that he can invest in a savings account. His bank is willing to pay interest to his account at a rate of 0.04. How long will Terrance need to leave the money in the account if he wants to earn $100 in interest, doubling his money? Use the formula .
Answers
Answer: 25 years
Step-by-step explanation:
4 percent of 100 is 25. Meaning 25 years
Viet, quinn, and lucy are going to play bingo B 1-15, I-16-30, N-31-45, G-46-60, O-61-75.
Lucy makes a probability model to determine whether the first number drawn will be even or odd. Compare the different probabilities.
Answers
15/1
15
Answer:odd. I don't know if I'm right though.
Step-by-step explanation:
I think it's odd as it be -15 which is odd.
I really hope this helps.
For each ride, a taxi service charges an initial fee plus an additional fee based on the number of kilometers of the trip. The graph shows the cost for taxi rides. Select a true statement. The rise is 4 while the run is 2. The selection of answers are:
A: The slope is 2.1. This means that each kilometer costs $2.10.
B: The slope is 5. This means that each kilometer costs $5.
C: The y-intercept is 2.1. This means that the initial fee is $2.10.
D: The y-intercept is 5. This means that the ride lasts 5. kilometers.
Which one is right and why?
Answers
THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!
The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.
The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.
2.8t + 5.3t simplified ?
Answers
Answer:
Well since they both have the same variable you can just add 2.8 and 5.3.
2.8 + 5.3 = 8.1
And since their are 2 variables left that are both t, you can just add them bothe to the answer as 8.1t squared!
8.1t squared
Step-by-step explanation:
Hope it helps! =D
Answer:
2 . 8t
+5 . 3t
_______
8 . 1t
NEED ANSWER (CORRECT ANSWER)
Answers
Answer:
44
Step-by-step explanation:
range=max value-min value
140-96=44
Allison had 18 postage stamps she gave 2/9 of the stamps to her mother and used 1/2 of the remaining stamps to send letters to her friends in Canada how many stamps are left
Answers
ANSWER: She will have 2 stamps left.
please answer my question correctly not for points because i will be deleting wrong answers. im not saying this to be rude.
Answers
so i need to drag the tiles and get the answer :)
Answers
Answer:
\( - 2 \frac{3}{5} \div \frac{3}{5} = - \frac{13}{5} \times \frac{5}{3} = - \frac{13}{3} = - 4 \frac{1}{3} \)
\(2 \frac{1}{4} \div \frac{3}{4} = \frac{9}{4} \times \frac{4}{3} = 3\)
\( - \frac{10}{17} \div ( - \frac{15}{17} ) =\)
\( - \frac{10}{17} \times ( - \frac{17}{15} ) = \frac{2}{3} \)
\( 2.75 \div ( - 2.2) = \)
\( 2 \frac{3}{4} \div ( - 2 \frac{1}{5} ) = \)
\( \frac{11}{4} \div ( - \frac{11}{5} ) = \frac{11}{4} \times ( - \frac{5}{11} ) = - \frac{5}{4} = - 1.25\)
3 ⇒ 2 (1/4) / (3/4)
-1.25 ⇒ 2.75 / (-2.2)
2/3 ⇒ (-10/17) / (-15/17)
-4 1/3 ⇒ -2 (3/5) / (3/5)
Hope my answer helps you✌️
Mark BRAINLIEST
Which set of values are in the solution set of 3x + 2 > 8?
A. 0, 1, 2, 3
B. 1, 2, 3, 4
C. 2, 3, 4, 5
D. 3, 4, 5, 6
Answers
9514 1404 393
Answer:
D. 3, 4, 5, 6
Step-by-step explanation:
3x + 2 > 8 . . . . . . given
3x > 6 . . . . . . . . . subtract 2 from both sides
x > 2 . . . . . . . . . . divide both sides by 2
Any set of values that includes 2 or any smaller numbers is NOT a solution set. The only set with numbers greater than 2 is ...
D. 3, 4, 5, 6
You substitute the vale’s in X then multiply.
justin was deciding between jujubes and some sour chews. if the jujubes are 3$ for 12 ounces and sour chews were 3.50$ for 14 ounces what would be the better buy?.
Answers
Answer:
14 onces
Step-by-step explanation:
beacuse its just 50 cents extra so might aswell
Answer:
jujubes
Step-by-step explanation:
im not so sure if im wright but
3x12 = 36
3.50x14 = 49
3 ÷ 12 = 0.25
3.50 ÷ 14 = 0.25