Answers
Geometry
The formula for the area of a sector is
[tex]k = \frac{m}{360} \times a[/tex]
Input the things which you already know. (m)
[tex]k = \frac{45}{360} \times a[/tex]
a=πr^2
a=36π
Input this into the equation.
[tex]k = \frac{45}{360} \times 36 \times 3.14[/tex]
[tex]k = \frac{45}{360} \times 113.04[/tex]
[tex]k = 14.13[/tex]
Related Questions
Determine if the function f(x)=x+4 is increasing or decreasing on the interval of 2≤x≤5. Justify your answer.
Answers
Step-by-step explanation:
Given
The function is [tex]f(x)=x+4[/tex]
for [tex]x_2>x_1[/tex], we will check the values of [tex]f(x_1)[/tex] and [tex]f(x_2)[/tex]
Take 3 and 4
[tex]f(4)=4+4\\f(4)=8[/tex]
Similarly,
[tex]f(3)=3+4\\f(3)=7[/tex]
Thus, [tex]f(4)>f(3)[/tex]
Also, [tex]f'(x)[/tex] is 1 i.e. a constant value. So, the function is increasing linearly for the given interval.
I NEED HELP I ONLY HAVE 1 MORE HOUR TO FINISH THIS, Which expression(s) could you use to find out the total cost for the three students?
Answers
Answer:
Kadie is correct
Step-by-step explanation:
There are 3 people (including Kadie). Kadie said that you can write the expression by multiplying 3 by all of the admissions and fees for the three things they did at the dance. By doing this and adding up the result, you get the money that needs to be paid at the dance for all three of them.
Hope this helps!
11. Solve the system of equations.
y = 4x + 2
y-- 2x+2
А) , x= 0, y = 2 © x=2,y=0
( B) x=0, y=1 D x=1,x=0
Answers
Answer:
x = 0 y = 2
Step-by-step explanation:
4x + 2 = -2x + 2
6x + 2 = 2
6x = 0
x = 0
y = 4(0) + 2
y = 2
I NEED HELP BEFORE 3pm PLEASE HELP!!!
Answers
Answer:
yes it is.
Step-by-step explanation:
Which of the following values of r will result in a true statement when substituted into the given equation?
-r + 5(r + 2) = -10
A. r = -6
B. r = -5
C. r = 0
D. r = 1
Answers
Answer:
the right answer is -5 (B)
Step-by-step explanation:
-(-5) +5(-5+2)
5 + -15 = -10
Answer:
B. r = -5 is the answer.
The difference of the square of a number and 18 is equal to 3 times that number. Find the positive solution.
Answers
Answer:
18 = 3 x 6
Step-by-step explanation:
If you don't know the difference of the square of a number you can already see that it's telling 18 = 3 times that number so identify the missing number by multiplying 3 times a number.
18 = 3 x ?
18 = 3 x 6
18 = 18
:D
Answer:
6
Step-by-step explanation:
Let us start by writing an equation using the variable x.
The square of a number x minus 18 equals 3 times x:
[tex]x^{2} -18=3x[/tex]
Great! Now let us solve for x by moving the 3x term to the left side of the equation and obtain a quadratic equation:
[tex]x^{2} -3x-18=0[/tex]
We can use the quadratic formula [tex]\frac{-b±\sqrt{b^{2}-4ac } }{2a}[/tex] to solve for x. *Please ignore the A after b. I cannot remove it for some reason.*
From our equation, a represents the coefficient of the term with degree of 2. Therefore, our a variable is 1. b represents the coefficient of the term with degree 1. Out variable b is therefore -3. Lastly, c represents the term with degree 0. Our c variable is -18. Lets solve!
[tex]\frac{3 ±\sqrt{(-3)^{2}-4*1*(-18) } }{2*1} =\\\frac{3 ±\sqrt{9+72} }{2} =\\\frac{3 ±\sqrt{81} }{2} =\\\frac{3 ±9}{2} \\\\[/tex]
Now we have two possible solutions. Let us start with the addition version:
[tex]\frac{3+9}{2} =\\\frac{12}{2} =\\6[/tex]
Alternatively you could try the subtraction version:
[tex]\frac{3-9}{2} =\\\frac{-6}{2} =\\-12[/tex]
However, the question asks to find the positive solution. Therefore, out answer is 6.
I hope this helps! Please let me know if you have any questions :)
In order, you roll a die, toss a coin, and then roll a second die. How many
unique results could you get from completing this task?
Answers
Answer:
If I'm not mistaken the answer is 44
PLZ HELP WITH MATH THIS IS MY LAST DAY AND I NEED TO FINISH IT!!
The tables show the proportional relationship between two quantities. Write the constant of proportionality for each table.
(A) The constant of proportionality is _________.
(B) The constant of proportionality is _________.
(C) The constant of proportionality is _________.
Answers
Answer:
I'm really sorry but show the table
Can I ask scan a picture out of my camera roll?
Answers
A $12 beach towel is discounted 40%. Find the sales price.
Answers
Answer:
$7.20
Step-by-step explanation:
Answer:
7.20
Step-by-step explanation:
This is because
[tex]40\% \: of \: 12 \: = 4.8[/tex]
[tex]12 - 4.8 = 7.2[/tex]
a. What is the perimeter of a square with side length: 3 cm? 7 cm? s cm?
Answers
7cm p equals = 28
3 cm p=12
7 cm p=28
A restaurant distributed 7,000 coupons. Over the next month, 3,290 of the coupons were redeemed. How many coupons were not used?
Answers
Answer:
3,710 coupons
Step-by-step explanation:
You have to do 7,000-3,290 to get the answer, as 7,000 is the total number of coupons given, and 3,290 is the amount of coupons that was used.
7,000-3,290=3,710
Which of the following has a geometric sequence
Answers
Answer:
5, -25, 125, -625
Step-by-step explanation:
A geometric sequence is where a number is divided or multiplied by same number continuously
in the third option the number are multiplied by (-5) continuously
someone please do a step by step for this linear equation
Answers
26+10=36
36=9k
36/9
K=4
Which of the following is the explicit rule for a geometric sequence defined by
a recursive formula of…
A. an = 13.7041
OB. a, = 13.70-1
O C. a, = 7.13+1
O D. an = 7.130-1
Answers
Answer:
D
Step-by-step explanation:
Always apply the formula a_n=ar^(n-1) in this type of questions, since you know that the first term, a is 7 and the common ratio, r is 13. Therefore you can substitute a = 7 and r = 13 into the equation which equals to a_n=7×13^(n-1)
The explicit rule for a geometric sequence defined by,
a(n) = 7 × 13ⁿ⁻¹
We have to given that,
a (n) = 13 a (n - 1)
Now, We can simplify as,
a (n) / a (n - 1) = 13
a (n) = 13 a (n - 1)
Since, We know that,
a(n) = a × rⁿ⁻¹
Here, a = 7
a(n) = 7 × 13ⁿ⁻¹
Hence, Option c is true.
Learn more about the geometric sequence visit:
https://brainly.com/question/25461416
#SPJ7
Please guys say me the answer fast By full step by step process those who give me correct answer i will make him brainalist ☺️
Answers
Answer:
1. 345,600 seconds
2. 432,000 seconds
3. 1 day
4. 7500 meters
Hope that this helps!
Answer:
4 days=345600sec
5 days=432000
86400=24 hours
7.5km = 4.6miles
Step-by-step explanation:
60sec * 60= 1hour * 24 * 4=4 days if one day = 86400 sec than 4 days is 345600 and we know one day is 86400 seconds so just add that for one day
to convers km to mils you multiply the km value by .6214
Find the perimeter of a field with the following dimensions: Length: x² + 3x - 1 Width: 2x + 3
Answers
Answer:
B. 2x²+10x+4
Step-by-step explanation:
the perimeter =
2×(x²+3x-1+2x+3)
= 2×(x²+5x+2)
= 2x²+10x+4
7 x 5e = 105
plz help
Answers
e=3.
So this is how I approached this. Since 7 is being multiplied, I divided both sides by 7 so 105/7 = 15. Then it becomes simple as 5e=15. We divide both sides by 5 and get e=3. Tip: just try isolating the variable and then life is much easier.
Answer:
e = 3
Step-by-step explanation:
7 × 5e = 105
35e = 105
35e ÷ 35 = 105 ÷ 35
e = 3
Find the volume of the hemisphere below leave your answers in terms of pi
Answers
Answer:
volume of the hemisphere
[tex] \frac{2}{3} \times \pi \times {r}^{3} \\ \frac{2}{3} \times \pi \times 1331 \\ = 887.3333333333\pi[/tex]
A knitted pot holder is shaped like a circle. Its radius is 3.5 inches. What is its area?
Answers
Answer:
The area would be 38.48 square inches.
Step-by-step explanation:
With the radius being 3.5 once you solve it, the area comes out being 38.48 square inches. Hope this helps :D (also can you mark me brainliest)
f(x) = x2. What is g(x)?
g(x)
(1,9)
f(x)
Answers
Answer:
it D just took the test
Step-by-step explanation:
djszjxenwnzkge
Joe works mowing lawns and babysitting. He earns $9.10 an hour for mowing and $7.90 an hour for babysitting. How much will he earn for 1 hour of mowing and 5 hours of babysitting?
Answers
Answer:
Joe would receive $9.10 for One hour of mowing the lawn and $39.50 for Five hours of babysitting, which (if needed) adds up to $48.60
Step-by-step explanation:
It's as simple as multiplication. Since he only mowed the lawn for one hour, it would only be $9.10. Since he babysat for 5 hours, you'd simply multiply $7.90 by five, giving you the answer $39.50
1. Pick two animals to be in a race and answer the following questions.
a. Suppose two animals are in a race. Choose two animals from Table 1 and calculate the speed of each animal in yards per second. (6 points)
Example: Kangaroo – 30 miles/hour multiply by 1760 (conversion to yards) divided by 3600 (conversion to seconds). So the speed of a Kangaroo is 14.67 yd/sec.
b. You decide how much of a head start (in yards) the faster animal will offer the slower animal. For each animal, write an equation relating speed (v), distance from the starting line (d), and time (t). (6 points)
Formula:
c. Graph the two equations on the same coordinate plane. (4 points)
d. How long will it take the faster animal to overtake the slower animal? How many yards from the starting line are the animals when the faster animal overtakes the slower animal? (3 points)
e. Reduce the head start by half and repeat parts (c) and (d) from above. (9 points)
(c)
(d) How long will it take the faster animal to overtake the slower animal? How many yards from the starting line are the animals when the faster animal overtakes the slower animal?
2. Pick a third animal and answer the following questions.
a. Choose a third animal. Calculate its speed in yards per second. Compare its speed with the speed of the two animals you chose in Activity 1. (6 points)
b. Decide which two animals should get head starts and how much of a head start each should get. Write three equations relating distance from the starting line to time. (10 points)
c. Graph all three equations on the same coordinate plane. (6 points)
Part B: Which Community Garden Plan? (50 possible points)
The Community Garden Club would like to plant a garden on a small lot in a local neighborhood. One community member, Nancy, suggests a square garden while another member, Juan, suggests a rectangular garden. You will be in charge of determining which of the two gardens would cover the most area while using the least amount of fencing to surround it. You should show all calculations, and give complete explanations.
1. Nancy’s plans for a square garden include an area of (x2 + 12x + 36) m2. Write expressions for the length and width of this square garden. (8 points)
2. The plans for the square garden shows a length of 12 m. What is the width of the square garden? Using the area from problem 1, what is the value of x? What is the total area of this square garden? (9 points)
3. Juan’s plans include a rectangular garden with an area of (x2 + 14x + 24) m2. Write expressions for the length and width of the rectangular garden. (8 points)
4. The plans for the rectangular garden shows a length that is 6 m. longer than the length of the square garden. What is the width of the rectangular garden? How much shorter is the width of the rectangular garden than the square garden? (9 points)
5. Write expressions for the perimeter of each garden in terms of x. Then find each perimeter for the x-values calculated in the previous questions. (8 points)
6. The Community Garden Club would like the garden that covers the most area possible while requiring the least amount of fencing needed to completely surround it. Which garden plan should they choose? Explain your reasoning using the information you calculated for each garden plan. (8 points)
This project can be submitted electronically. Check the Project page in the online course for more detailed instructions.
Answers
Answer:
You can pick a Hare and a Tortoise LOL
Step-by-step explanation:
If ABCD is dilated by a factor of 1/2, the coordinate of A' would be: A=(?),( )
Answers
9514 1404 393
Answer:
(-2, -1)
Step-by-step explanation:
Dilation multiplies each of the coordinates by the dilation factor.
A' = 1/2A
A' = 1/2(-4, -2)
A' = (-2, -1)
Answer:
A'= {-2, -1}Step-by-step explanation:
correct me if I am wrong
Find the sum of the infinite geometric series: 1023 (0.25)-1 n=1 1,024 1 364 0 -1364 -1024
Answers
Answer:1,364
Step-by-step explanation: I did the assignment
PLEASE HELP!!! will mark brainliest
Answers
Which number can each term of the equation be multiplied by to eliminate the fractions before solving?
-3/4m-1/2=2+1/4m
2
3
4
5
Answers
9514 1404 393
Answer:
4
Step-by-step explanation:
The fractions involved are 3/4, 1/2, 1/4. These have a least common denominator of 4. All of the fractions can be eliminated by multiplying the equation by 4.
-3/4m -1/2 = 2 +1/4m . . . . . . given
-3m -2 = 8 + m . . . . . . . . . . . multiply by 4 (eliminates fractions)
-10 = 4m . . . . . . . . . . . . . . . . add 3m-8
-5/2 = m . . . . . . . . . . . . . . . . divide by 4
__
Check
-3/4(-5/2) -1/2 = 2 + 1/4(-5/2)
15/8 -4/8 = 16/8 -5/8
11/8 = 11/8 . . . . . answer checks OK
HELP PLEASE!
11 POINTS!
Answers
Answer:
yellow= 66ft^3
blue=312 ft^3
Step-by-step explanation:
small box volume + large box volume
small box:
1*1*2=2ft^3
large box:
8*2*4=64ft^3
total = 2+64=66ft^3
blue
small block= 4*6*2=48
large block=12*2*12=264
total= 48+264=312
Blue = 312ft^3
What fraction is at point A on the number line below? А ++ 0 + 1 Use the number pad to enter your answers in the boxes.
Answers
Answer:
1/2 .Step-by-step explanation: on the number line, draw the number line and mark a point A to represent 1. Now, divide the gap between O and A into two equal parts
Explanation:
I need points
Which of these describe a scenario in which the given quantity changes at a constant rate with respect to time? Select
all that apply.
A. A town's population increases by 218 people every 2 years.
B. There are 1,240 people exiting a football stadium every 10 minutes.
C. A country's population increases by 1.65% each month.
D. The number of registered voters in a county decreases by 0.25% each year.
Answers
Answer: A,B
Step-by-step explanation: the numbers constantly add up only by 218 or 1240 , C and D would not be correct because the rate of change increases as will with the total sum after each period of time
also tiny hint, if you were to draw an X,Y axis graph, A and B would be a straight line while C and D are curved up-wards