Answer:
Thus, the ratio of the central angles is 4 : 9.
Step-by-step explanation:
Area, A = 12 π square units
radius, R = 6 units
radius, r = 4 units
Area of sector is given by
[tex]A=\frac{\theta }{360}\times \pi r^{2}[/tex]
For first sector
[tex]12\pi=\frac{\theta }{360}\times \pi \times 6^{2}\\\\\theta = 120^{o}[/tex]
For second sector
[tex]12\pi=\frac{\theta' }{360}\times \pi \times 4^{2}\\\\\theta' = 270^{o}[/tex]
So, the ratio is
[tex]\frac{\theta}{\theta'}=\frac{120}{270} =4 : 9[/tex]
Answer:
4 : 9
Step-by-step explanation:
Given:
Two sectors, each has an area of 12pi, but with radii r1=6 and r2=4 units.
Find ratio of central angles.
Solution:
Let A = central angle
Area of a sector = pi r^2 (A/360)
Since both sectors have the same area,
pi r1^2 (A1/360) = pi r2^2 (A2/360)
simplifying
A1 r1^2 = A2 r2^2
Therefore
A1 : A2 = r2^2 : r1^2 = 4^2 : 6^2 = 4 : 9
please help and no links either
Answer:
D
Step-by-step explanation:
It says less than do I think it should be d
Sorry if I am wrong
Jess surveys her class to find out how many hours of sleep her classmates get per night. She lists the number of hours for each student,
8, 11, 10, 9, 9, 10, 11, 8, 10, 9, 8, 9, 7, 9, 10, 9, 11
Which question can be answered with Jess's data?
A. Who gets the most hours of sleep per night?
8. Who gets 7 hours of sleep per night?
C. How many hours of sleep does Jess get per night?
D. How many students get 8 hours of sleep per night?
Answer:
D
Step-by-step explanation:
Just by looking at the data, you cannot answer A, B, or C because they are asking for who. There is no information on the data on WHO each piece of data is referring to. You can only answer D, which asks for HOW MANY. You can count how many 8s there are and answer the question.
please answer all even questions and if you get them right ill date you for 1 day girl or boy but please help
Answer:
#2 = 56.55 | #4= 25.13 |#6= 12.57 | #8= 56.55
Step-by-step explanation:
Find the total monthly pay if total sales for a month were $34,450, the commission rate is 4.5% and the weekly base salary $175
Answer:
196.9
Step-by-step explanation:
plz solve quickly PLZ
Answer:
1. 25% 2. 35% 3. 30%
Step-by-step explanation:
I got the answers from the Pie Chart that was included on the image!
Hope this helps <3
explain step by step please
Answer:
1)0.6x=54 2)90
Step-by-step explanation:
1) 60% is the same as 0.6 and finding 60% is the same as as doing 0.6 times whatever the number is and here we don't know the number so it would be x. so 0.6 times x or 0.6x=54. You could also just write 60% of x=54
2) You would have to do the opposite of finding 60%.
So you would do 54/6=9 and 9*10=90. this is because to find 60% you have to do divide by 10 and times by 6. So you do the opposite. you can check your answer by doing 60% of 90. So 90/10= 9 and 9*6=54. Therefore his fundraising goal is $90
PLS HELP ASAP DUE IN 40 MINUTES
The base of this pyramid is a rectangle. How many congruent faces does this pyramid have?
The pyramid has 4 congruent faces.
The pyramid has 5 congruent faces.
The pyramid has 1 pair of congruent faces.
The pyramid has 2 pairs of congruent faces.
Answer:
It is (A) 4 congruent faces
Step-by-step explanation:
Easy to see how its the Base sides
-Hope it helped
Write the equation of this line in slope-intercept form
Answer:henenenen
Step-by-step explanation:
Bnenekekejeje sry this wasn't helpful I need points for this app
Answer:
y=1/2x+2
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(3-(-2))/(2-(-8))
m=(3+2)/(2+8)
m=5/10
m=1/2
y-y1=m(x-x1)
y-(-2)=1/2(x-(-8))
y+2=1/2(x+8)
y=1/2x+8/2-2
y=1/2x+4-2
y=1/2x+2
Kelly collected $15, $15, $25, and $29 in the last 4 donations for the class fundraiser. The mean of the donations is _____?
Answer:
21
Step-by-step explanation:
To find the mean, add up all the numbers
15+15+25+29 =84
Divide by the number of numbers
84/4 = 21
I need help ASAP please
Answer: THe top right one is the answer
John bought groceries for $105.30 and paper products for $35.50. The total bill including tax was $142.93. There was no tax charged on the groceries. What was the tax rate on the paper products?
Sara’s weekly paycheck $8,750 including base salary $1,500. Sales for the week totaled $75,000. What is the rate of commission to the nearest whole number?
The side lengths of a right triangle are 10, 26, and 24. Which is the hypotenuse?
A. 10
B. 24
C. 26
D. not enough information is given
Answer:
26
Step-by-step explanation:
use pathagorean theorem
a^2 + b^2 = c^2 where a and b are legs and c is the hypotenuse
10^2 + 24^2 = 676
then take the square root of 676
[tex]\sqrt{676}[/tex] = 26
Answer:
its 26
Step-by-step explanation:
srry i cant upload pics but i did the work
Can someone please do these two!! I would really appreciate it!
Step-by-step explanation:
a) d = 60 mi
t = 45 min = 0.75 hr
v = d/t
= (60 mi)/(0.75 hr)
= 80 mi/hr
b) t = d/v
= (75 mi)/(50 mi/hr)
= 1.5 hrs
Two lines meet at a point that is also a vertex of an angle; the measurement of ∠AOF is 134°.
Set up and solve an equation to find the values of x and y
Answer:
x and y are the same. they are both 99
Step-by-step explanation:
What is the area of the shaded region?
Answer:
if pi is 3.14: 163.52 [tex]m^2[/tex]
if pi is just π: 264 - 32π [tex]m^2[/tex]
Step-by-step explanation:
22 x 12 = 264
4 x 4 = 16
16 x 2 = 32
16 x 3.14 = 50.24
264 - 50.24 x 2 = 163.52
Answer:
163.47
Step-by-step explanation:
We know the area of the whole rectangle by multiplying 12 by 22 to get 264. Now we just have to find the area of the circles and subtract it from the rectangle.
The area of a circle is πr^2. These circles' radii is 4, so 4^2π = 16π
Since there are 2 circles, double 16π to get 32π, 32π is equal to 100.53096491, rounded to 100.531. 264 - 100.531 = 163.469, rounded to 163.47
5. Point H is located at (-7, 5). Where is H' after a 270° clockwise rotation?
I hope this helps you sorry to get it wrong
Answer:
H after a 270 degrees clockwise rotation is at (-5,-7)
HELP PLZ! ID.K HOW TO DO THIS! :) (RIGHT ANSWER WILL GET BRANLIEST)
Answer:
first one it is about 10
Secound one is 4 ÷ (1)=4
the third is x<4
the fourth is 16 ÷(-4)=4
Step-by-step explanation:
1. 34/3.5=9.714.... so if rounded its about 10
2. its not going to be negitive so that why its that
3.because its after(it shows in the diagram.)
4. i'm not sure how to explain this one i'm sorry
Point D was reflected over the y-axis to make Point D'.
Where was point D before the reflection?
A (3,-2)
B (3, 2)
C (-3, -2)
D (-3, 2)
A closet containing 120 pieces of clothing is made of sweaters, jeans, and skirts. The ratio of sweaters to jeans is 8:3, and the ratio of jeans to skirts is 3:4. If 4 of the pairs of jeans were taken out of the closet and were replaced by 4 skirts, what will be the new ratio of jeans to skirts?
A. 3:4
B. 4:5
C. 5:9
D. 1:11
Answer:
C, 5:9
Step-by-step explanation:
Answer:
5/9
Step-by-step explanation:
Context for variables
sw: number of sweaters
j: number of jeans
sk: number of skirts
The following three equations are established from the question:
sw + j + sk = 120
sw/j = 8/3
j/sk = 3/4 or sk/j = 4/3
Dividing the first equation by j, we get:
sw/j + j/j + sk/j = 120/j
8/3 + 1 + 4/3 = 120/j
5 = 120/j
j = 120/5 = 24
sw = 24*8/3 = 64
sk = 24*4/3 = 32
After the replacement the new number of jeans and skirts are:
j' = 24 - 4 = 20
sk' = 32 + 4 = 36
the new ratio of jeans to skirts is:
j'/sk' = 20/36 = 5/9
What is the area of the shaded region ?
Answer:
254.34 m
Step-by-step explanation:
since the formula is A= (pi)r^2
divide 18 by 2 to get the radius = 9
square the radius and get 81
then finaly just multiply 81 by 3.14 = 254.34
Which statement correctly represents that an elevation of -9 feet is higher than an elevation of -13.75 feet?
-9 feet < -13.75 feet
-9 feet > -13.75 feet
-9 feet = -13.75 feet
Answer:
-9 feet > -13.75 feet
Step-by-step explanation:
-9 feet is bigger than ( > ) -13.75 feet
Answer:
-9 > -13.75
Step-by-step explanation:
think as the > if it's a crocodile, it's going to eat the biggest amount. lol
pls help me with this math problem
Answer:
You can use this formula
A = 2 (wl + lh + hw)
to soslve that
Step-by-step explanation:
Evaluate the expression for the given value of the variable.
Answer:
17
Step-by-step explanation:
24/t + t^2
Let t=3
24/3 + 3^2
8 + 9
17
Answer:
The correct answer is 17
Please answer this ASAP
Answer:
1. 22
2. 16
3. -43
4. -8
D
This is not all the answers
kaya does homework for 2 2/3 hours. she spends 1/4 of this time doing science homework. how much times does she spend doing her science homework?
Marcus is rolling a number cube with sides labeled 1 to 6 A: The probability that the number cube will show 10 is______ B:It is ___ that the number cube will show 10.
Answer:
7%
Step-by-step explanation:
Answer:
A. 0% B. Impossible
Step-by-step explanation:
The cube is only 1 through 6 6 is least than 10
Which statement from "President Obama's Third Annual Back to School Speech" best represents a claim in his speech?
A. "Each of these questions led to new questions."
B. "And now he’s helping other young people be able to afford the schooling that they need."
D. "The point is you don’t have to wait to make a difference."
E. "She hadn’t taken chemistry yet, so she taught herself chemistry during the summer.
please help this is K12
Answer:
b is the only one that makes sense
"The point is you don’t have to wait to make a difference." The correct option is D.
What is speech?Speech can have multiple meanings depending on the context or situation. The act of speaking and communicating verbally with others is referred to as speech.
Overall, the act of communicating through language, whether through spoken words or other forms of verbal communication, is referred to as speech.
"The point is you don't have to wait to make a difference," says President Barack Obama in "President Obama's Third Annual Back to School Speech."
A claim is an assertion that something is true, and this assertion encourages students to take action and make a difference in their communities.
Thus, the correct option is D.
For more details regarding speech, visit:
https://brainly.com/question/29769492
#SPJ3
HI HELP PLEASE I GIBE BRAINLISY
Step-by-step explanation:
Hope it helped!
Trying again:
1/3 of 80= 26.7(1dp)
1/4 of 80= 20
26.7+20= 46.7(1dp)
80-46.7= 33.3(1dp)
Either 33 or 34 people
Answer:
30
Step-by-step explanation:
We can estimate that 1/4 people had cereal and after that, half chose eggs/ meat over toast/roll.
1/4 * 80 is 20 So we are left with 60.
60/2 is 30.
So I would estimate 30 people chose eggs and meat.
A tree in John's backyard has been growing for 4 1/2 years. The tree is 4/5 meters tall. What is the unit rate in meters per year? No links or I will report. Answer in a fraction or mixed number in simplest form or whole number. Answer fast please.
Answer:
5 127/200 meters
Step-by-step explanation:
4 1/2 = 4 5/10 | 4/5 = 8/10
--------------------------------------
4 5/10 = 4.5 | 8/10 = 0.8
--------------------------------------
4.8 divided by 0.8 = 5.625
--------------------------------------
5.635 = 5 635/1000
635/1000 divided by 5 = 127/200
--------------------------------------
5 + 127/200 = 5 127/200
The unit rate in meters per year is 8/45 meter/year.
Given that, a tree in John's backyard has been growing for [tex]4\frac{1}{2} = \frac{9}{2}[/tex] years. The tree is 4/5 meters tall.
What is the unit rate?Unit rate can be defined as the ratio between two measurements with the second term as 1. It is considered to be different from a rate, in which a certain number of units of the first quantity is compared to one unit of the second quantity.
Now, unit rate = 4/5 ÷ 9/2
= 4/5 × 2/9
= 8/45 meter per year
Therefore, the unit rate in meters per year is 8/45 meter/year.
To learn more about the unit rate visit:
https://brainly.com/question/11258929.
#SPJ2