The radius of circle A is r cm. The radius of circle B is twice the radius of circle A. What difference between the circumference of circle B and circle A (in cm)?
9514 1404 393
Answer:
2πr cm
Step-by-step explanation:
The circumference of a circle of radius r is ...
C = 2πr
For a radius of (r cm), the circumference is ...
A = 2π(r cm) = 2πr cm
For a radius of (2r cm), the circumference is ...
B = 2π(2r cm) = 4πr cm
Then the difference between the circumferences is ...
B -A = (4πr cm) -(2πr cm) = 2πr cm . . . . difference in circumference
1. In each table, determine if y is proportional to x. Explain why or why not.
1.
x
y
2.
х
y
3.
х
y
3
12
3
15
6
4
5
20
4
17
9
6
2
8
LO
19
12
8
8
32
6
21
3
2
1.
2.
3.
everyone was a little confused sooo this is better!!
Answer:
3 is the answer
Step-by-step explanation:
ooooooooooooooooooooo
mowed 3 yards for $35.00
Answer:
AYO HE LOOKIN SPIFFY
Step-by-step explanation:
angela neli are going to the movies
Answer:
thats good what are you waatching?
Step-by-step explanation:
Hope that helps
The elevator is a business center has a weight limit of 1800 pounds assume the average person weighs 160 pounds and has 3 pounds of items with them what is the greatest number of people that can ride the elevator at one time
Write the expression using exponents. g⋅g⋅g⋅g⋅g
A used-droid dealership buys a droid for $2700 and then sells it for $4000. What is the percent increase?
Answer:1300
Step-by-step explanation:
please help me plsssssss! asappp. I'll mark brainlest and give points
Answer:
Step-by-step explanation:
1)a) Abscissa of O 0
Abscissa of A 4
Abscissa of B -3 {opposite of 3}
Abscissa of C 3 {3 is the only positive integer like A}
Abscissa of D -4.5
Abscissa of E -6
Abscissa of F -1 {Midpoint of AE = (6+4)/2 = 10/2 = 5th number from -6 or 4}
b) OB = 3 units
DA = 8.5 {4.5 +4 = 8.5}
Y=arccos(1/x)
Please help me do them all! I don’t know derivatives :(
Answer:
sorry bro I even don't know coz I am class 7
Mr. Thompson asked 50 students were about their
favorite ice cream.
1/5 of the students chose Vanilla
1/2 of the students chose Chocolate The remaining chose Strawberry
How many students chose Strawberry as their favorite flavor?
What decimal represents the students who
prefer cookie dough?
Answer:
0.12 chose strawberry as their favorite
If x is semi-prime, how many prime factors does it have?
please, 20 points for this!!
Answer:
2 prime factors
Answer: 2 prime factors
Step-by-step explanation: A semiprime is a number n that has just 2 prime factors p and q so n = p × q. It is therefore "almost" a prime (which has only one prime factor, itself!) or a semiprime.
Which expression is equivalent to √10/4√8?
Answer:
A
Step-by-step explanation:
A
The height of a model rocket, H(t), is a function of the time since it was
launched, t.
Time (seconds)
What is the domain of H(t)?
A. t <100
B. T>0
C. 0
D. 0
The domain of function H(t) is 0 ≤ t ≤ 20.
What is a function?A function has an input and an output.
A function can be one-to-one or onto one.
It simply indicated the relationships between the input and the output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
From the graph,
We see that the value of t is from 0 to 20 seconds.
Now,
The value of t can be written as an inequality:
0 ≤ t ≤ 20
Thus,
The domain of function H(t) is 0 ≤ t ≤ 20.
Learn more about functions here:
https://brainly.com/question/28533782
#SPJ7
To Baker’s plus their contents have a mass of 180.4 g the total mass of the contents is 56.8 g each Baker has the same mess right and solve an equation to find the mass of one bigger
PLEASE HELP ITS MATH THANK YOUUUU
Answer:
sorry i don't know
Step-by-step explanation:
sorry
Please help
Solve for w
help help help help thankyou
Answer:
3.4×10⁴
Step-by-step explanation:
1.6×10⁴=1.6×10000=16000
5×10⁴=5×10000=50000
5000-16000=34000
=3.4×10⁴
The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 3 to 4. If there were 2874 yes votes, what was the total number of votes?
Answer:
6702
Step-by-step explanation:
2874/3*(3+4)=6702
HELP PLEASEEE I WILL GIVE BRAINLIEST
Answer:
140 degrees.
Step-by-step explanation:
180-110 is 70. Bottom triangle is isosceles, meaning that the bottom left corner is also 70 degrees. The top angle in the bottom triangle is 180-70-70, 40. Flip it to the other side and the bottom angle of the top triangle is 40. Again, an isosceles triangle, so that the top left angle of the top triangle is also 40. 180-40 is 140.
7 divided by $15.02. ROUND TO THE NEAREST CENT!! QUICKLY
Answer:
0.5
Step-by-step explanation:
7 / 15.02 US dollars = 0.466045273
Round to the nearest tenth: 0.5
somone plz help me will make brainlest if is right
9514 1404 393
Answer:
y = 1/5
Step-by-step explanation:
Divide both sides of the equation by the coefficient of the variable.
7 = 35y
7/35 = (35y/35)
1/5 = 1y
y = 1/5
_____
A number divided by itself is 1. A number multiplied by 1 is unchanged.
To get from 35y to 1y, or y, divide by 35. That gives you (35/35)y = 1y = y.
Whatever you do to one side of the equation must also be done to the other side. Dividing 7 by 35 gives 7/35 = (7/7)×(1/5) = 1/5.
I bought 3,000,000 shares at .000007. what would my gain be if it reached .01 .
If 1 share had an initial cost of $0.000007, then 3,000,000 shares would be worth
(3,000,000 shares) × ($0.000007/share) = $21
If the price increases to $0.01 per share, then the same number of shares would have a value of
(3,000,000 shares) × ($0.01/share) = $30,000
So you've gained a net profit of $30,000 - $21 = $29,979, which corresponds to a
$29,979 / $21 = 1,427.57 = 142,757%
increase in value.
Two cyclists start at the same point and travel in opposite directions. One cyclist travels 4 km/h slower than the other. If the two cyclists are 120 kilometers apart after 2 hours, what is the rate of each cyclist?
What is the answer to this question number 2
Answer:
B
Step-by-step explanation:
number of adults=a
number of children=1
cost of adult tickets=$9 per adult
cost of children's tickets=$6 per child
Total cost=$78
9(a)+6(1)=78
9a+6=78 B
do have a great day ahead...
Can anyone help me on this question? Thank you so much! ( ¿Alguien puede ayudarme con esta pregunta? ¡muchas gracias! )
Answer:
3 cups of milk are required for each cup of flour.
Answer:
3 cups of milk
Step-by-step explanation:
1 cup divided by a 1/2 cup is 2.
1 1/2 cups multiplied by 2 is 3 cups.
Which is the best description of the data in the
histogram?
O Students mostly studied about 6 hours.
O Students who studied longer did better on the test.
O Students' study times did not vary by much.
O The majority of students studied between 4 and 8
hours.
Which is the best description of the data in the
histogram?
O Students mostly studied about 6 hours.
O Students who studied longer did better on the test.
O Students' study times did not vary by much.
O The majority of students studied between 4 and 8
hours.
Answer: D
Step-by-step explanation:
EDGE22
Solve the inequality
X/3+9> 14
[tex]\\ \sf\longmapsto \dfrac{x}{3}+9>14[/tex]
[tex]\\ \sf\longmapsto \dfrac{x}{3}>5[/tex]
[tex]\\ \sf\longmapsto x>3(5)[/tex]
[tex]\\ \sf\longmapsto x>15[/tex]
Answer:
the answer is x>15
Step-by-step explanation:
As part of an environmental impact study, a power company wants to estimate the difference in mean water temperature between the discharge of its plant and the offshore waters. How many sample measurements must be taken at each site to estimate the true difference between means to within .2°C with 95% confidence? Assume that the standard deviation in readings is about 1.5°C at each site and the same number of readings will be taken at each site.
Using the z-distribution, it is found that 217 sample measurements should be taken at each site.
The margin of error of a z-confidence interval is given by:
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which:
z is the critical value. [tex]\sigma[/tex] is the population standard deviation. n is the sample size.The first step is finding the critical value, which is z with a p-value of [tex]\frac{1 + \alpha}{2}[/tex], in which [tex]\alpha[/tex] is the confidence level.
In this problem, [tex]\alpha = 0.95[/tex], thus, z with a p-value of [tex]\frac{1 + 0.95}{2} = 0.975[/tex], which means that it is z = 1.96.
Estimate of the standard deviation of 1.5, thus, [tex]\sigma = 1.5[/tex].
We want the sample for a margin of error of 0.2ºC, thus, we have to solve for n when [tex]M = 0.2[/tex].
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]0.2 = 1.96\frac{1.5}{\sqrt{n}}[/tex]
[tex]0.2\sqrt{n} = 1.96(1.5)[/tex]
[tex]\sqrt{n} = \frac{1.96(1.5)}{0.2}[/tex]
[tex](\sqrt{n})^2 = (\frac{1.96(1.5)}{0.2})^2[/tex]
[tex]n = 216.1[/tex]
Rounding up:
217 sample measurements should be taken at each site.
A similar problem is given at https://brainly.com/question/17039768
susan and teo play soccer susans team plays every five days and teos team plays every six days when will they play on the same day
Answer: On day 30
Step-by-step explanation:
1. skip count by both 5 and 6 and look for the first number they have in
common 5, 10, 15, 20, 25, 30, 35, 40, 45, 50
6, 12,18, 24, 30, 36, 42, 48, 54, 60
30 is the first number in common
Evaluate.
0.2^3÷0.4⋅60+3.6÷1.2
Enter your answer as a decimal
Answer:
what that's grade? ha
that's first year college