Find the area and the circumference of a circle with diameter 4ft
Please help
Answers
Answer:
I will give you the formula, you can do the calculations and I will confirm in a comment
Step-by-step explanation:
[tex]area = \pi {r}^{2} [/tex]
[tex]r = \frac{diamter}{2}[/tex]
[tex]area = \pi { \frac{d}{4} }^{2} [/tex]
[tex]circumstance = \pi d[/tex]
Related Questions
What addition statement does this show?
A. -3.4 + 5.7 = -9.1
B. -3.4 + (-5.7) = -9.1
C. 3.4 + (-5.7) = -9.1
D. 3.4 + 5.7 = -9.1
Answers
Answer:
B
Step-by-step explanation:
A circle has a diameter of 18. The sector has a central angle of 30 degrees. What is the area of the sector?
Answers
Answer:
21.21
Step-by-step explanation:
Area of a circle is A = π r^2
Variables:
r = 18/2 = 9
θ = 30 deg
Find the area:
A = π r^2
A = π 9^2
A = 254.47
Find the area of the sector:
θ/360 * A
= 30/360 * 254.47
= 21.21
156.43 - 42.1
EXPLAIN HOW YOU GOT IT AND ILL MARK BRAINLIEST!
Answers
Answer:
Your answer is 114.33
Step-by-step explanation:
How I got the answer was
156.43
- 42.1
————-
114.33
It is easy subtraction don’t let decimals fool you!
For a easier way take out the dot in the decimal and put it in after when you got the answer!
Have a nice day! And thank you for this question! :)
Brainlest is always appreciated! :)
Can anyone help me I’ll mark ya Brainly
Answers
Answer:
1/6
Step-by-step explanation:
The number of school buses needed to transport students on a field trip is given by the function
f(x) = where x represents the number of students going on the trip. What is the domain of this
40
function?
A. 'x is the set of all real numbers.
B. x is the set of all integers.
c. x is the set of all nonnegative integers.
D. x is the set of all nonnegative real numbers.
Answers
Answer:
Answer is C
I don't know properly
I hope you like it
Answer:
A
Step-by-step explanation:
1. You have the following function that is shown in the problem above:
f(x)=(x+3)/30
2. Then, the domain of the function f(x)=(x+3)/30 is:
All the real numbers (R)
3. Therefore, the correct answer for the exercise is the first option (Option A), which is:
A. x is the set of all real numbers.
HELP I WILL CHOOSE BRAINLIST
Answers
Answer:
I feel like its C or B
Step-by-step explanation:
промінь ділить розгорнутий кут на два кути. знайди ці кути, якщо один з них на 20градусів більший за другий
Answers
Answer:
write it in English so I can understand
Write the standard equation of the circle if the center is (-1,2), and a point on the circle is (2,6).
Plzzzzz helpppp me
Answers
Answer:
(x + 1)² + (y - 2)² = 25Step-by-step explanation:
The center is given:
(-1, 2)Find the radius, the distance from the center to a point (2, 6)
r² = (2 - (-1))² + (6 - 2)² = 3² + 4² = 25r = √25 = 5Use circle formula:
(x - h)² + (y - k)² = r²(x - (-1))² + (y - 2)² = 5²(x + 1)² + (y - 2)² = 25A rectangle has an area of 235.2m squared. One of the sides is 2.8m in length. work out the perimeter of the rectangle, please?
Answers
Answer:
P = 173.6 mSteps:
given:
A = 235.2 m²
S1 = 2.8 m
S2 = A/S1
S2 = 235.2/2.8
S2 = 84 m
P = 2(S1+S2)
P = 2(2.8+84)
P = 2 × 86.8
P = 173.6 m
Determine the magnitude for the vector v that has the initial point (3, -8) and terminal point (-5, 4). Round to the nearest hundredth.
A. 3.46
B. 4. 47
C. 8.94
D. 14.42
Answers
The average human reaction time from eye to finger is 0.16 second. How is this expressed as a fraction?
Answers
Answer:
4/25 seconds
Step-by-step explanation:
the second (0.16) is in two decimal places, so divide 16 by 100
[tex]\frac{16}{100}[/tex]
to express in the simplest form, divide the numerator and the denominator by 4
= [tex]\frac{4}{25}[/tex]
First to answer correctly gets brainlest no files or your answer is reported
Answers
21 degree angle?
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
my life is hellpless.... could you please help? i cant even understand this I'm only 11.
Answers
Answer:
y-intercept: -4
slope: 2
equation: y = -4x + 2
Answer:
Y-intercept: -4
Slope: 2
Equation: y = 2x - 4
Which of the following points best represent ...
Answers
(NO FILES) In a sequence of numbers, a3=7, a4=10, a5=13, a6=16, and a7=19. Which equation can be used to find the nth term of the sequence, an?
an=7n+3
an=3n+7
an=2n−3
an=3n−2
Answers
Answer:
Step-by-step explanation:
Find the area of the polygon with vertices
A(-6,-2), B(-6,5), C(2,5), and D(2,-2).
Answers
Answer:
its b or c
i hope this helps! if not im sorry.
Cory owes $1,000 to his bank. During the time of his loan, he is charged a rate of 12% simple annual interest. If he does not make any payments on his loan, which table shows the relationship between the amount he owes and the number of months?
A.
Balance Due Number of Months
$1,036 3
$1,084 7
$1,120 10
B.
Balance Due Number of Months
$1,020 2
$1,050 5
$1,090 9
C.
Balance Due Number of Months
$1,004.80 4
$1,009.60 8
$1,013.20 11
D.
Balance Due Number of Months
$1,005 5
$1,007 7
$1,012 12
Answers
Answer:
The answer is B
Step-by-step explanation:
Given: Cory owes $1,000 to his bank. During the time of his loan, he is charged a real of 12% simple annual interest
To find: If he does not make any payments on his loan, draw table showing the relationship between the amount he owes and the number of months
Solution:
Loan amount P = $ 1000
Rate of interest R = 12 % per annum
SI = P * R * T /100
one month T = (1/12) Years
Interest per month = 1000 * 12 * (1/12) /100 = $ 10
Hence interest chaarges $ 10 per month
Cory owes to bank the loan amount and interest
Cory owes = 1000 + 10 n
where n is the number of months
Month Amount
0 1000
1 1010
2 1020
3 1030
4 1040
5 1050
6 1060
7 1070
8 1080
9 1090
and so on
HELP ME AND SHOW WORK PLEASE
Answers
Answer:
B) 1693.3
Step-by-step explanation:
Volume of a cylinder:
V = πr²h
V = π7²(11)
V = 49(11)π
V = 539π
V = 1693.3
Find the area of a regular hexagon with an apothem length of 12.1 and a side length of 14
Answers
Answer:
area = 520 units²
Step-by-step explanation:
divide the hexagon into 6 equal triangles.
each triangle has a base of 14 and a height of 12.1 so:
the area of one triangles = 1/2BH = 1/2(14)(12.1) = 86.8 units ²
86.8 x 6 triangles = 520.8 units²
Evaluate the expressions for when x=-1, y=3, z=-2
z²+x²-y and x²y²z²
Answers
Step-by-step explanation:
z² +x² - y= -2²+ -1² - 3
4+ 1 - 3= 2
x²y²z²= -1²× 3²× -2²
1× 9× 4= 36
Jesse collects data on his math scores on the last 12 tests and the number of hours he spent completing his math homework assignments and studying in the week before every test. He creates a scatter plot to show the data. The regression line shown on the graph best models the data on the scatter plot.
Based on the given model, how many hours in the week before the test does Jesse need to study to get a score of 90 on the test? Round your answer to the nearest hour.
Answers
Answer:
24 hoursStep-by-step explanation:
Using the two points on the regression line, let's find its equation.
Points:
(0, 30) and (8, 50)The slope:
(50 - 30)/8 = 2.5The y-intercept is
30The equation:
y = 2.5x + 30Solve for x if y = 90
90 = 2.5x + 302.5x = 60x = 60/2.5x = 24The answer is 24 hours
4 + 6^2 + 9x3-10
Help plz
Answers
Answer:
57
Step-by-step explanation:
Answer:
9x^3+30
Step-by-step explanation:
Im not sure if you wanted to simplify because you werent specific but I simplified
Parallelogram PQRS has diagonals that are perpendicular. Based on that, which statement is most correct?
A- Parallelogram PQRS is also a rectangle
B- Parallelogram PQRS is also a rhombus.
C- Parallelogram PQRS is neither a rectangle nor a rhombus.
D- Parallelogram PQRS is both a rectangle and a rhombus, so it is a square.
Answers
Answer:
B- Parallelogram PQRS is also a rhombus.
Step-by-step explanation:
Given
Parallelogram PQRS with perpendicular diagonals
Required
Which of the option is true
(a) PQRS can be a rectangle
A rectangle do not have perpendicular diagonals.
Hence, (a) is false
If (a) is false, then (d) is also false
(b) PQRS can a rhombus
The diagonals of a rhombus are not perpendicular.
So (b) is true
No need to check for (c), since only option is true
Answer:
B- Parallelogram PQRS is also a rhombus.
Step-by-step explanation:
Hope this helps
Rachel used 2.8 cups of sugar to make 2 cherry pies. How much sugar, on average, did she put in each pie?
Answers
Answer:
1.2 cups
Step-by-step explanation:
Divide the total cups (2.4) by the amount of pies (2)
2.4/2 = 1.2 cups of sugar per pie
Hopefully this helps - let me know if you have any questions!
Find the intercept and slope in the graph, and find the aquation for the function.
Answers
Answer:
Slope = 3
y intercept = -8
y = 3x - 8
Step-by-step explanation:
From the table shown, we can make use of the coordinate points
(0, -8) and (1, -5)
Slope m = y2-y1/x2-x1
m = -5-(-8)/1-0
m = -5+8/1-0
m = 3/1
m = 3
Slope = 3
The standard form of an equation is y = mx+b
b is the y intercept
Substitute m = 3 and (0, -8) into y = mx+b
-8 = 3(0) + b
-8 = b
b = -8
Hence y intercept is -8
Get the required equation
Recall that y = mx+b
y = 3x + (-8)
y = 3x - 8
This gives the required equation
Sophie drew an angle that turns through 90/360 of a circle. Which describes the measure of Sophie’s angle?
14 degree
90/360 degree
90 degrees
360 degrees
Answers
Answer:
90/360 describes the Sophie angle its all ready said in question as you read
Kind request :- If you are helped with my answer pls tag me brianliest I really want it
THANK YOU..... Plzz see to my request
A washer and a dryer cost $726 combined. The washer costs $76 more than the dryer. What is the cost of the dryer?
Answers
Answer:Cost of dryer=$325
Step-by-step explanation:
Let the dryer be represented as x
and the washer be x+76
such that the price of both can be written as
dryer + washer=$726
x + x+76=726
2x+76=726
2x=726-76
2x=650
x=650/2=325
Cost of dryer =x=$325
The price of a ring was decreased by 25% to £390.
What was the price before the decrease
Answers
Could someone help me find an equation ❤️
Answers
Answer:
-(2/3)x+4
Step-by-step explanation:
For the slope you do rise over run, since the graph intercepts the y-axis at 4 and goes down to 0 the rise is -4 and from the same point the graph "runs" 6 the rise/run is -4/6 which can be simplified to -2/3. For the y-intercept you simply find where the graph touches the y-intercept and add (or subtract if the number is negative) that to the end of the equation.
Please help with test offering big points pt 3
Answers
Answer:
25
Step-by-step explanation:
because if you do 1000 divided buy 25 its 69420 so if you do 69420 divided by 69420 its 1 and 1x1000 its 1000 divided by 54 its 25 so its 25