Answers
Answer:
(a) and (e)
Step-by-step explanation:
Given
[tex]d = 14cm[/tex]
Required
Select the true statements
First, is a statement about the area.
The area is calculated as:
[tex]Area= \pi*\frac{d^2}{4}[/tex]
So, we have:
[tex]Area= 3.14*\frac{14^2}{4}[/tex]
[tex]Area= 3.14*49[/tex]
(a) is true
Next, is a statement about the circumference.
This is calculated as:
[tex]C = \pi d[/tex]
So, we have:
[tex]C = 3.14 * 14[/tex]
(e) is true
Related Questions
45 people in a certain company can work together to finish a project in 15 days. For a project of the same workload, the
company decided to use 15 people. Assume all people have the same level of productivity.
In how many days can this project be completed?
SELECT ONLY ONE
5 days
10 days
22.5 days
45 days
Answers
Given:
45 people will accomplish the given task in 15 days.
To find:
Days taken by 15 people to complete the same task.
Solution:
Since, 45 people of a company can finish a work in 15 days
Therefore, 1 person can accomplish the task in days = [tex]15\times45[/tex]
= [tex]675[/tex] days
15 people will accomplish the same task in number of days = [tex]\frac{675}{15}[/tex]
= [tex]45[/tex]
Therefore, number of days taken by 15 people to accomplish the same task will be 45 days.
Learn more about the inverse relation,
https://brainly.com/question/9286901
arctan(tan(18pi /7))
Answers
Answer:
what is this ?!?!?!?!
Step-by-step explanation:
btw can u be more specific so i can properly help u
. Look at the figure. In degrees, what
is the angle measure of the shaded
part?
Answers
Answer:
80%
Step-by-step explanation:
Which of the data sets below has a mean of 32? Select all that apply.
A) 45, 21, 33, 29
B) 18, 54, 24
C) 14, 56, 34, 18, 23
D) 34, 35, 21, 29, 46
Answers
Answer:
B is the correct answer
Step-by-step explanation: When you add 18+54+24=96 divide 96 by 3 and its 32!
Plz help this is due today i would have done it myself but i totally forgot about these so PLZ HELP AND NO LINKS AND NO GROSS PICTURES OR I REPORT.
Answers
Answer:
Equal sides and Equal angles
Step-by-step explanation:
Evaluate the following problem: (7.2 × 105)(0.4 × 10−3)
Answers
Answer:
756
Step-by-step explanation:
Answer:
756
Step-by-step explanation:
(7.2×105)(0.4×10−3)
Multiply 7.2 and 105 to get 756.
756(0.4×10−3)
Multiply 0.4 and 10 to get 4.
756(4−3)
Subtract 3 from 4 to get 1.
756×1
Multiply 756 and 1 to get 756.
756
A survey report states that 70% of adult women visit their doctors for a physical examination at least once in two years. If 20 adult women are randomly selected, find the probability that: (a) Fewer than 14 of them have had a physical examination in the past two years. (b) At least 17 of them have had a physical exami- nation in the past two years
Answers
Answer:
a) 0.3921 = 39.21% probability that fewer than 14 of them have had a physical examination in the past two years.
b) 0.107 = 10.7% probability that at least 17 of them have had a physical examination in the past two years.
Step-by-step explanation:
For each women, there are only two possible outcomes. Either they visit their doctors for a physical examination at least once in two years, or they do not. The probability of a woman visiting their doctor at least once in this period is independent of any other women. This means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
70% of adult women visit their doctors for a physical examination at least once in two years.
This means that [tex]p = 0.7[/tex]
20 adult women
This means that [tex]n = 20[/tex]
(a) Fewer than 14 of them have had a physical examination in the past two years.
This is:
[tex]P(X < 14) = 1 - P(X \geq 14)[/tex]
In which
[tex]P(X \geq 14) = P(X = 14) + P(X = 15) + P(X = 16) + P(X = 17) + P(X = 18) + P(X = 19) + P(X = 20)[/tex]
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 14) = C_{20,14}.(0.7)^{14}.(0.3)^{6} = 0.1916[/tex]
[tex]P(X = 15) = C_{20,15}.(0.7)^{15}.(0.3)^{5} = 0.1789[/tex]
[tex]P(X = 16) = C_{20,16}.(0.7)^{16}.(0.3)^{4} = 0.1304[/tex]
[tex]P(X = 17) = C_{20,14}.(0.7)^{17}.(0.3)^{3} = 0.0716[/tex]
[tex]P(X = 18) = C_{20,18}.(0.7)^{18}.(0.3)^{2} = 0.0278[/tex]
[tex]P(X = 19) = C_{20,19}.(0.7)^{19}.(0.3)^{1} = 0.0068[/tex]
[tex]P(X = 20) = C_{20,20}.(0.7)^{20}.(0.3)^{0} = 0.0008[/tex]
So
[tex]P(X \geq 14) = P(X = 14) + P(X = 15) + P(X = 16) + P(X = 17) + P(X = 18) + P(X = 19) + P(X = 20) = 0.1916 + 0.1789 + 0.1304 + 0.0716 + 0.0278 + 0.0068 + 0.0008 = 0.6079[/tex]
[tex]P(X < 14) = 1 - P(X \geq 14) = 1 - 0.6079 = 0.3921[/tex]
0.3921 = 39.21% probability that fewer than 14 of them have had a physical examination in the past two years.
(b) At least 17 of them have had a physical examination in the past two years
[tex]P(X \geq 17) = P(X = 17) + P(X = 18) + P(X = 19) + P(X = 20)[/tex]
From the values found in item (a).
[tex]P(X \geq 17) = P(X = 17) + P(X = 18) + P(X = 19) + P(X = 20) = 0.0716 + 0.0278 + 0.0068 + 0.0008 = 0.107[/tex]
0.107 = 10.7% probability that at least 17 of them have had a physical examination in the past two years.
simplify (a-4b)(a-2b)
Answers
Ans: 720cm
2
The ratio of the number of Malay students to the number of Indian students to the
number of Chinese students in a school is 5:4:8.
There are a total of 468 Indian and Chinese students.
What is the total number of students?
Ans:
Answers
Answer:
663
Step-by-step explanation:
the total number of students can be determined using this equation :
(total ratio of Chinese and Indian students / total ratio of students) x n = 468
total ratio of Chinese and Indian students = 4 + 8 = 12
total ratio of students 4 + 8 + 5 = 17
N = TOTAL NUMBER OF STUDENTS
12/17) x n = 468
multiply both sides of the equation by 17/12
n = 663
Find the total area of the two figure. Round to the nearest whole number. PLEASE HELP WILL MARK BRAINLIST! THANK YOU!
Answers
Answer:
b•h/2
12.8•9/2=57.6
area of the triangle is 57.6
12.8•18.5=236.8
area or rectangle is 236.8
the total area is 57.6+236.8=294.4
I hope this right
The algebraic expression for the sum of 5 and g?
Answers
Answer:
5 + g
Step-by-step explanation:
The sum of 5 and g,
5 + g
What is the greatest common factor of 6, 42, and 30?
Answers
Answer:
6
Step-by-step explanation:
I found that the greatest common factor for those numbers is 6
Find the length of TU as indicates in the picture, will name Brainliest.
Answers
Answer:
7
Step-by-step explanation:
2x-5 + 2x-7 = 12
this is because the length of the line is given to be 12
so the sum of the two equations should be 12
2x+2x -5-7 = 12
4x - 12 = 12
4x = 12+12
4x = 24
x = 6
there TU = 2x-5 =2(6) -5 =12-5=7
TU = 7
giving brainliest!! *easy*
Answers
Surface area is 1256.64
Find the value of x pls help with this
Answers
Referring to the figure, find the value of x
Answers
Answer:
x=23
Step-by-step explanation:
solved the variable
Answer:
x = 23
Step-by-step explanation:
All triangle angles add up to 180 so:
x + 3x + 3 + 85 = 180
4x + 88 = 180
4x = 180 - 88
4x = 92
x = 23
PLS HELP: DETERMINE WHETHER THE PAIR OF RATIOS FORMS A PROPORTION
Answers
Answer:
No
Step-by-step explanation:
To form a proporion, both would need to be a multiple of the same thing, whcih they aren't
what does 3 x 2/5 equal?
Answers
Answer:
you would get 1.2
Answer:
Step-by-step explanation:
exact form 6/5
decimal form 1.2
mixed number form 1 1/5
FAR is to DISTANCE as DEEP is to __?__.
Answers
Answer:
depth
Step-by-step explanation:
far is a describing distance
deep is describing depth
What is the range of the function graphed below?
A. Y>-1
B X< -1
C X>-1
D Y< -1
LOOK AT THE GRAPH.
Answers
Answer:
Option A
Step-by-step explanation:
Range of a function is defined by the set of y-values (output values).
From the given graph,
Y-values of the exponential function given in the graph vary from y = -1 to y = ∞ (excluding both the points)
Therefore, Range of the given exponential function will be y > -1
Option A will be the correct option.
find two numbers that multiply to be 12 and add to be -13
Answers
Answer:
-12 and -1
Step-by-step explanation:
(-12)+ (-1)= -13
and -12x-1=12. as - x -=+ (minus x minus=plus)
Answer:-1 and -12
Step-by-step explanation:
-12*-1= 12
-12+(-1)=-13
Hurry ASAP) Graph the system of equations. f ( x) = x^2 - 5x + 7 and g(x)=2x + 1. Which statements are true about the solutions to the system of equations? Select each correct answer. ( I accidentally clicked on option A but I don't know the answer at all). Will Mark Brainliest.
Answers
Answer:
N/A
Step-by-step explanation:
Get the Desmos graphing calculator app. it is very helpful when graphing and needing to be able to compare functions
WILL GIVE BRAINLYIST
69X420
Answers
Answer:
28,980
Step-by-step explanation:
Easy claps my boiiiiiiiii
Hail Hydra
I need help with this
Answers
Answer:
sience -2 is to the left of 2
_
. 3
A circular table cloth has a radius of 24 inches. Mrs. Lopez is planning to sew a
piece of trim around the edge of the table cloth. To the nearest inch, how much
trim will she need?
Answers
Answer:
150 inches
Step-by-step explanation:
C=2πr
2·π·24 ≈ 150.79645
Mrs. Lopez need to sew a piece of cloth whose length be 150.72 inches.
What is circumference?A circumference gives the length around a circular object, it is the perimeter used for the circular objects.
Given that a circular tablecloth has a radius of 24 inches, we need to find the length around it,
So, the length around a circular object is its circumference,
We know that circumference of the circular object = π × diameter,
Diameter = 2 × radius = 48 inches.
So, the length around the circular cloth = π × 48
= 3.14 × 48
= 150.72
Hence Mrs. Lopez need to sew a piece of cloth whose length be 150.72 inches.
Learn more about circumference, click;
https://brainly.com/question/28757341
#SPJ2
Enter the data to create a histogram. Then select the correct answer. hours 3 4 4 2 5 416 6 5 Faizah keeps track of the hours she practices. O The histogram is not symmetrical O The histogram is symmetrical. O The data are not evenly distributed O The left side of the graph is not the mirror image of the right side of the graph.
Answers
Through the use of the data given, the histogram can be classified as the histogram is not symmetrical.
When is histogram not symmetrical?The histogram is not symmetrical if it is or has skewed distribution.
This is said to be when a distribution is said to not have any mirror-imaging. and as such, through the use of the data given, the histogram can be classified as the histogram is not symmetrical.
Learn more about histogram from
https://brainly.com/question/16417064
#SPJ1
Find the surface area of the prism. 5cm 7cm 4cm
Answers
so 7 x 5 x 4 = 140cm
140 cm is the answer
Hoped this helped =)
Betsy's high school is putting on a production of a play as a fundraiser for the school's music programs. A local bank has agreed to
allow the school to use a line of credit from which they can withdraw money to pay for the play. Then, any deposits they make at the
bank will be applied to the negative balance of the credit account.
The play cost $2,500.00 to produce, and they intend to sell tickets for $7 each. After the play, Betsy will take the ticket proceeds and
deposit them with the bank. If 559 people attend the play's opening night, what will the balance of the bank account be?
Answers
A rectangle has a width of 20 m and an area of 60 m.
What is the length of the rectangle?
Answers
Answer:
the answer is 3.
Step-by-step explanation:
A = L* W
when you are given the area and the width you need to divide the area by the width to find the length.
So 60/20=3
Help anyone? Math is not my strong suit
Answers
Answer:
the 3rd one
Step-by-step explanation:
Answer:
it's the 7 one
Step-by-step explanation:
math has patterns if you follow the patterns you can see the symbol and the 7 look alike. stuff like this works for me a lot but I don't know f it'll work this time. If it doesn't I'm sorry I tried.