Answer: 7pi
Step-by-step explanation:
To find the circumference do radius (d/2)*2*pi
substitute 7*pi
7pi
seven people sit in a circle.How many ways can this be done if two people A and B sit together
Step-by-step explanation:
Suppose the persons are a, b, c, d, e, f and g.
Let us also assume that a and b always sit together.
Let us then put the remaining 5 persons in a circular arrangement. It can be done in (5–1)! = 4! = 24 ways. Now, the pair (a,b) can be placed between any two persons already placed in circular order. There are 5 such gaps. Finally the pair (a,b) can be placed in two ways viz. (a,b) and (b,a).
So, total number of ways a group of 7 persons can be seated around a circular table where 2 specified persons always sit together is 24 X 2 X 5 = 240
4/5 divided by 1/3 ??
Answer:
2.4
Step-by-step explanation:
Evaluate the expression, below, when a = 2 and b = 5.
(3 + a)² • (4 – b) + √36
Answer:
-19
Step-by-step explanation:
1) substitute a with 2 and b with 5
(3 + 2)^2 * (4-5) + √36
2) solve the brackets and the square root
(5^2) * (-1) + 6
3) solve the power
25 *(-1) + 6
4) solve the multiplication
-25 + 6
5) solve the sum
- 19
Answer:
-19
Step-by-step explanation:
i got the answer right
What is the area of a square, rectangle, or parallelogram?
Answer:
area of a square= length ²
area of a rectangle=length*breadth
area of parallelogram=base *height
What is the value of X?
Answer:
23
Step-by-step explanation:
83+3x+90+x+95= 360
4x= 360-83-90-95
4x= 92
x= 23
Which Equation best matches the graph shown below?
Answer:
.2(x+1)(x+5)
Step-by-step explanation:
Well first lets start with the x intercepts which are -1 and negative 5 so the equation must be either -0.2(x+1)(x+5) or .2(x+1)(x+5)
Notice how the graph is going upwards this means the number in front of the equation -.2 or .2 must be positive making .2(x+1)(x+5) this is because if .2 was negative the graph would be going downwards
After 2 hours, the air temperature had risen 7° f. How long will it take at this rate for the temperature to rise an additional 13°f?
Answer:
21 hours
Step-by-step explanation:
After 2 hours the temperature has risen to 7°f
The time taken to rise to an additional 13°f can be calculated as follows
1 hour takes 3.5°f
13°f = 3.5×6
= 21 hours
Hence it would take 21 hours
f(x) = x2. What is g(x)?
Answer:
Answer: g(x)=. Step-by-step explanation: We are given that: f(x)=x². We have to find g(x). Since, we are given that g(3)=1. Hence, we will ... · g of x would equal (1/3x)^2 because if x was 6 y, g(x), would be 4
Step-by-step explanation:
Hailey invested $2,000 in an account paying an interest rate of 2\tfrac{3}{8}2 8 3 % compounded continuously. Sophie invested $2,000 in an account paying an interest rate of 2\tfrac{7}{8}2 8 7 % compounded daily. To the nearest hundredth of a year, how much longer would it take for Hailey's money to double than for Sophie's money to double?
Answer:
5.08 years
Step-by-step explanation:
We are to solve for time using compound interest formulas
For Hailey
Principal = $200
Amount = Double of Principal = $4000
Rate = 2 3/8% = 2.375.
Time = ?
Hence,
First, convert R as a percent to r as a decimal
r = R/100
r = 2.375/100
r = 0.02375 per year,
Then, solve the equation for t
t = ln(A/P) / r
t = ln(4,000.00/2,000.00) / 0.02375
t = 29.185 years
≈ 29.19 years
For Sophie
Principal = $200
Amount = Double of Principal = $4000
Rate = 2 7/8% = 2.875
Time = ?
First, convert R as a percent to r as a decimal
r = R/100
r = 2.875/100
r = 0.02875 per year,
Then, solve the equation for t
t = ln(A/P) / n[ln(1 + r/n)]
t = ln(4,000.00/2,000.00) / ( 365 × [ln(1 + 0.02875/365)] )
t = ln(4,000.00/2,000.00) / ( 365 × [ln(1 + 7.8767E-5)] )
t = 24.11 years
How much longer would it take for Hailey's money to double than for Sophie's money to double?
For Hailey it takes 29.19 years
For Sophie it takes 24.11 years
We find the difference
= 29.19 - 24.11
= 5.08 years
Therefore, it would take 5.08 years for Hailey's money to double than Sophie
Answer:
5.07 a little late but oh well
Step-by-step explanation:
In rectangle ABCD the slope of AB is 1/2 what is the slope of CD
Answer:
there is no picture of what i need to solve
Step-by-step explanation:
Please help me quick
Answer:
c
Step-by-step explanation:
can i get brainlist because brainly deleted all my answers for no reason
There students Matthew,Thomson and Amos shared 15000 in the ratio 5:2:x respectively.If Matthew's share is 7500 calculate the value of x
Answer:
x= 3
Step-by-step explanation:
Given data
Ratio= 5:2:x
Combined ratio= 5+2+x
= 7+x
Total amount of money= $15000
Let us apply the part to all method
Hence for Matthew whose share = $7500
5/7+x= 7500/15000
Cross multiply we have
7500*(7+x)= 15000*5
52500+7500x= 75000
Collect like terms we have
7500x= 75000-52500
7500x=22500
x= 22500/7500
x=3
Hence the value of x= 3
Evaluate x^2, when x is 1/2
Answer:
1/4
Step-by-step explanation:
1/2*1/2
Chris has scored the following points in his last five basketball games: 13,10,14,9,6
How many points must he have score in the next game to average 14 points per game?
PLEASE HELP! NO FILES THO! THEY DON'T WORK!
Answer:
he must score 32 points in the next game in order to average 14 points per game.
Step-by-step explanation:
14 x 6 = 84
84-(13+10+14+9+6)=32
checking:
32 + 13 + 10 + 14 + 9 + 6 = 84
84 divided by 6 = 14
Who is the volume of a sphere that has the radius of 3 inches
Answer:
113.1
Step-by-step explanation:
i just did the math
Answer:
113.1 is the answer
I just multiplied
Which four numbers will complete this addition puzzle?
Answer:
top 8, middle 7, 16, bottom 13
Help please
The lines on a coordinate plane are perpendicular.
Perpendicular lines form what type of angles?
Answer:
B. Right angles
Step-by-step explanation:
When perpendicular lines intersect, they create 90° angles (aka right angles)
The school cafeteria has 13 round tables and 20 rectangular tables. Each round table has 7 chairs, and each rectangular table has 8 chairs. How many chairs are there in all?
Answer:
160 for the rectangle table and 91 for the round table
Write an exponential function to model each situation. Then find the value of the function after the given amount of time. $35,000 invested at a rate of 6% compounded monthly; 10 years.
Answer:
this so hard
Step-by-step explanation:
5.
Graph the inequality.
Match the graph to the correct inequality below.
A. x < 2
B. x>=2
C. x > 2
D. x<=2
Answer:
A. x < 2
Step-by-step explanation:
Open and closed circles are used to mark the end points of intervals. If the circle is open, it means the end point is NOT included in the interval, but if the circle is closed, it means the end point is included. Consider the interval . In this interval, the low endpoint, the 3, is not included because you have a 'less than' sign.
If gas costs $3.15 per gallon, how many whole gallons of gas could you buy with $27.00?
(Make sure to answer with a whole number.) just explain it
Answer: 8 whole gallons.
Step-by-step explanation: If you have only $27.00 and you need to buy gas, but each gallon is $3.15, then you just need to divide your total amount ($27.00) by your cost per gallon ($3.15), and you will get about 8.6 gallons, however this question asks for how many WHOLE gallons you can get, so all you need to do is round down to fit your budget, leaving money for only 8 whole gallons.
WORK: ($27.00) / ($3.15) = 8.6 gallons
What is the greatest common factor of 6 and 8? *
Mark only one oval.
2
3
4
PLSSSSSS HELP ILL GIVEE BRAINLESST PLS
I NEED HELP AHHHHHHHHH> PLS NO LINKS CAUSE I HAVE A RESTRICTED COMPUTER!!!!
Answer:
18.6 cm²
Step-by-step explanation:
99/7 + 9/2
= 18.6 cm²
if (triangle) ABC= (triangle) DEC , what is the value of x ?
a- x=8
b- x=5
c- x=4
d- x=1
Answer:
x= 1
Step-by-step explanation:
sinceΔABC =ΔDEF
Therefore
4x-1 will be equal to x+2
then x = 1
Are these the right answers ? If not please correct me
Answer: 1 is consecutive interior, 2 is corresponding, 3 is alt interior, and 4 is alt exterior
Step-by-step explanation: above
what is the measurement of the missing angle
Answer:
65
Step-by-step explanation:
115-180=65 degrees
Answer:
68+47+x= 180
x=180-115
x=65
Need help ASAP!
NO LINKS!putos
By the way thanks
Answer:
14
Step-by-step explanation:
4 2/3
Multiply the 4 and 3 together to get 12
Then you add the 12 to the 2 to get 14
Therefore, it'll take 14 1/3 cups.
Herby is a corn farmer in lowa who likes to track the growth of his crops. At various times Herby will go
into the field and document the height of the corn (in cm) and how many weeks it has been since the corn
was planted. He plotted the points below.
He is looking for a function that models his data. Since the trend of the data is increasing and convex, he
found an increasing convex exponential model and an increasing convex quadratic model.
Which of the following functions fits the data better?
Choose 1 answer:
Function A: y = 7.2
B
Function B: y = 1202 – 12x + 18
Ilse the function that you chose to predict the height of the corn 6 weeks after it has been planted. Round
Answer: B
Step-by-step explanation:
suppose a city with population 100,000 has been growing a rate of 4% per year. if this rate continues find the population of this city in 10 years
Answer:
f(x) = a(1 + r)x f(x) = 100000(1+0.04)^10 = 148,024 I believe
Step-by-step explanation: