HELP A S A P 20 POINTS
Select all the expressions that correctly calculate the perimeter of the shape.
40 + 20pi
80 + 20pi
120 + 20pi
300 + 100pi
10 + 10 + 10pi + 10+ 10 + 10pi
Answers
Answer:
40+20pi
10+10+10pi+10+10+10pi
Step-by-step explanation:
40+20pi
10+10+10pi+10+10+10pi
Related Questions
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 100 miles per hour. The westbound train
travels at 90 miles per hour. How long will it take for the two trains to be 304 miles apart? ( this is timed plz someone help)
Answers
Solving for the elapsed time
distance traveled = (speed of first train + speed of second train) * elapsed time
280 miles = (95 mph + 105 mph) * elapsed time
280 miles = 200 mph * elapsed time
elapsed time = 280 miles / 200 mph
elapsed time = 1.4 hours
elapsed time = 1 hour and 24 minutes
It will take 1 hour and 24 minutes for the two trains to be 280 miles apart.
Find the angle, in degrees between 0 and 360∘, which intersects the unit circle at the point (−1/2,3/√2).
Answers
Answer:
it approx 103.2 degree
Step-by-step explanation:
s=90+tan^-1(1÷3√2)
I add 90 base on the coordinate , taking the centre of the circle place at origin
WILL GIVE BRAINLST
HAVE A AMAZING DAy !!
Answers
Answer:
1. 4^2+3^2=5^2
16+9=25
[tex]\sqrt{25}[/tex]=5
2. a=17.5
3.c=25
Step-by-step explanation:
2. explanation
a^2+b^2=c^2
With this the equation we have to use is this-
c^2+b^2=a^2
So-
15^2+9^2=a^2
(15*15)+(9*9)=(a*a)
225+81=a^2
306=a^2
[tex]\sqrt{x}[/tex] means finding the number times itself equals 306
[tex]\sqrt{306}[/tex]=17.492≈17.5
a=17.5
3. explanation
7^2+24^2=c^2
49+576=c^2
625=c^2
[tex]\sqrt{625}[/tex]=25
c=25
According to survey data, the distribution of arm spans for males is approximately Normal with a mean of 71.4 inches and a standard deviation of 3.1 inches. a. What percentage of men have arm spans between 66 and 76 inches? b. A particular professional basketball player has an arm span of almost 89 inches. Find the z-score for this person's arm span. What percentage of males have an arm span at least as long as this person?
Answers
Answer:
a) 89.97% of men have arm spans between 66 and 76 inches.
b) The z-score for this person's arm span is 5.68. 0% of males have an arm span at least as long as this person
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Mean of 71.4 inches and a standard deviation of 3.1 inches.
This means that [tex]\mu = 71.4, \sigma = 3.1[/tex]
a. What percentage of men have arm spans between 66 and 76 inches?
The proportion is the pvalue of Z when X = 76 subtracted by the pvalue of Z when X = 66. The percentage is the proportion multiplied by 100.
X = 76
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{76 - 71.4}{3.1}[/tex]
[tex]Z = 1.48[/tex]
[tex]Z = 1.48[/tex] has a pvalue of 0.9306
X = 66
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{66 - 71.4}{3.1}[/tex]
[tex]Z = -1.74[/tex]
[tex]Z = -1.74[/tex] has a pvalue of 0.0409
0.9306 - 0.0409 = 0.8997
0.8997*100% = 89.97%
89.97% of men have arm spans between 66 and 76 inches.
b. A particular professional basketball player has an arm span of almost 89 inches. Find the z-score for this person's arm span. What percentage of males have an arm span at least as long as this person?
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{89 - 71.4}{3.1}[/tex]
[tex]Z = 5.68[/tex]
The z-score for this person's arm span is 5.68.
Z = 5.68 has a pvalue of 1
1 - 1 = 0
0% of males have an arm span at least as long as this person
The percentage of men who have arm spans between 66 and 76 inches is 89.97% and the percentage of males who have an arm span at least as long as this person is 0%.
Given :
According to survey data, the distribution of arm spans for males is approximately Normal with a mean of 71.4 inches and a standard deviation of 3.1 inches.
a) The formula of z-score is given below:
[tex]\rm Z = \dfrac{X-\mu}{\sigma}[/tex]
where [tex]\mu[/tex] is the mean and [tex]\sigma[/tex] is the standard deviation.
When X = 66 the formula of z-score becomes:
[tex]\rm Z = \dfrac{66-71.4}{3.1}[/tex]
Z = -1.74
The p-value regarding the (Z = -1.74) is 0.0409.
When X = 76 the formula of z-score becomes:
[tex]\rm Z = \dfrac{76-71.4}{3.1}[/tex]
Z = 1.48
The p-value regarding the (Z = 1.48) is 0.9306.
Now, the percentage of men who have arm spans between 66 and 76 inches is:
= (0.9306 - 0.0409) [tex]\times[/tex] 100 %
= 89.97%
b) Now, at X = 89 the formula of z-score becomes:
[tex]\rm Z = \dfrac{89-71.4}{3.1}[/tex]
Z = 5.68
The p-value regarding the (Z = 5.68) is 1.
So, the percentage of males who have an arm span at least as long as 89 inches is:
= (1 - 1) [tex]\times[/tex] 100 %
= 0%
For more information, refer to the link given below:
https://brainly.com/question/13299273
Look at the figure. If m∠J = 55, find m∠JKM.
55
90
35
70
Answers
35
Step-by-step explanation:
x+55 + 90=180
x= 180-145
x=35
ILL MARK BRAINLIEST!!! PLS HELP!!! A car purchased for $18,000 depreciates annually at a rate of 5%.
What will be the approximate value of the car in the 10th year?
Answers
Answer:
Step-by-step exlanation:
What you do is $18,000 x 5% which is 900 and then you do 900 x 10 = 9000!
A man runs around a square park and covers 1km in five rounds.
What is the area of the park?
Answers
Answer:
The area of the park is equal to 2,500 square meters.
Step-by-step explanation:
Given that a man runs around a square park and covers 1km in five rounds, the following calculation must be performed to determine the area of the park:
Assuming that the park was square in shape, to calculate its area its base must be multiplied by its height (which are equal).
Thus, if in 5 laps the man runs 1 km, for each lap he will run 200 meters (1000/5). Thus, dividing 200 by the 4 sides of the square, we get 50 meters (200/4). Therefore, since 50 x 50 is equal to 2,500, the area of the park is equal to 2,500 square meters.
What is the equation of the line that passes through the points (2,4) and (5, 13)?
Answers
Answer:
y = 3 x − 2
Step-by-step explanation:
I Use the slope formula and slope-intercept form y = m x + b to find the equation.
Hope this helps:)
What is the lateral surface area of the
figure below?
Answers
Finnafer loves bacon. When she cooks bacon, 60% of the slices are think. How many slices are there if 36 were thick? Which equation can be used to solve this problem?
Answers
Answer:
74
Step-by-step explanation:
Answer:
its 0.60(36)
Step-by-step explanation:
Enter an equation in slope-intercept form for the line that passes through (0, 0) and is parallel to the line described by y = − 3/4x + 5.
Answers
Answer:
Step-by-step explanation:
19. The National Health and Nutrition Survey reported that 39% of adults in the United States
have hypertension (high blood pressure). A sample of 24 adults is studied.
A. What is the probability that exactly 17 of them have hypertension? ____________
B. What is the probability that at least 10 of them have hypertension? ____________
C. What is the probability that at most 12 of them have hypertension? ____________
D. Would it be unusual if more than 8 had hypertension? Write your answer by using a
complete sentence or two
Answers
Answer:
A. P(x=17) = 0.00121
B. P(x=10) = 0.15768
C. P(x=12)=0.0888
D. No , x can take any value more than 8
complete sentence or two
Step-by-step explanation:
Here n= 24 ; p= 0.39 ; q = 1-0.39= 0.71
Applying binomial probability distribution
P(X=x) = nCx p^x q^n-x
Part A.
P(x=17) = 24c17 p ^17 q^24-17
P(x=17) = 0.00121510493
Part B.
P(x=10) = 24c10 p ^10 q^24-10
P(x=10) = 0.1576877824
Part C.
P(x=12) = 24c12 p ^12 q^24-12
P(x=12)=0.08887201897
D. The random variable X can obviously take on anyone of the (n+1) integer value 0,1,23,-------,n in the binomial probability distribution
where
the trials are fixed
and the successes and failures are independent.
What round 3\7 to is closest
Answers
how DO I DELETE THIS ANSWER
The cost of DVDs will grow at a rate of $1.40 each year. In 2013, a new DVD cost $17.99. Let z be the number of years since 2013.
Which function models the price of a new DVD 2 years after 2013?
O f (I) = 17.99 + 1.0141
O f (x) - 17.99 +1.42
O f (2) - 17.99(1.4)
O f (2) -- 17.99(1.014)
Answers
Answer:
A, because A is the answer(I have my reasons) so A. Rate 5 stars
Which of the following correctly arranges the figures in a hierarchy based on their classification?
A.
polygon → isosceles → triangle → equilateral
B.
polygon → isosceles → equilateral → triangle
C.
polygon → triangle → isosceles → equilateral
D.
polygon → triangle → equilateral → isosceles
Answers
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
1) Para uma estratégia de marketing de conteúdo adequada, é necessário
que a empresa conheça seu público-alvo, pois a partir dele será capaz de
definir pontos-chave do conteúdo, como o tom do conteúdo, seu formato, os
valores centrais e de que formas esse conteúdo será distribuido. Uma das
ferramentas que auxiliam na compreensão do público-alvo é a criação de
personas.
Assinale a alternativa que explica corretamente o que são personas.
Alternativas:
a) Perfis detalhados de consumidores-alvo hipotéticos.
b) Representações ficticias dos clientes indesejados de um negócio.
Perfis gerais de pessoas reais, não necessariamente consumidores-alvo
hipotéticos.
d)
Perfis detalhados de pessoas reais, não necessariamente hipotéticos
consumidores-alvo.
e) Representações fictícias e desumanizadas de consumidores-alvo.
T
Answers
Answer:
hello gret person i dont know wat i amdoing i am b
Dara pinkston Recorded her house and expenses for a month of August mortgage payment was 347.90Insurance $17 Texas $84 electricity $64.40 phone service $33.50 fuel $98.25 water $17.44 in repairs $79.87 .Her monthly take-home pay is 2150 what’s her total money coast?
Answers
Answer:
the total monthly cost is $742.36
Step-by-step explanation:
The computation of the total monthly cost is shown below:
= Mortgage payment + insurance + taxes + electricity + phone service + fuel + water + repairs
= $347.90 + $17 + $84 + $64.40 + $33.50 + $98.25 + $17.44 + $79.87
= $742.36
Hence, the total monthly cost is $742.36
GUYS, I KNOW THIS IS A LOT BUT BECAUSE I HAD NO ELECTRICITY I WAS UNABLE TO DO IT AND NOW I'M BEHIND. PLS HELP! I'M RUNNING OUT OF POINTS!
Answers
Answer:
Hey! I'll only help with a few..
Step-by-step explanation:
2. 2c(7c+1)
3. The expression is not factorable with rational numbers.
4. 2x^3y^2(4-11 x^2y^4)
Hope this helps!
Have a nice day!♥
i need to write these in slope intercept form please help anyone ill give brainliest and i have an f please
Answers
Answer:
1. y= -1x+3
2. y= -7/3x+4
3. y= 7/3x+5
4. y= -3x+1
5. y= -6/5x+2
6. y= 4x-4
I hope this helped and make sure to give brainliest! :)
At the start of the day, Celia has a checking account balance of $423.75. She used her debit card to make a purchase of $42.30 for groceries and
$15.00 for gas. She also withdrew money from an ATM for $40.00. How much money is now in Grace's checking account?
WRITE WITH A S, COMMA AND CENTS EXAMPLE 3456.456 IS $3,456.46 AND 45 IS $45.00
Answers
Please answer will give branliest
Answers
Answer:
Its d because 36/12=3
Step-by-step explanation:
The answer is D. m = 36
Ivan was watching TV and saw an ad for the Magic Pad. He ordered one for $19.99 but they also charge a shipping and handling fee of 22%. What is the total amount of Ivan’s order? Which equation will solve the problem?
Answers
Answer:
ur mom
Step-by-step explanation:
Salima wants to attach a border round a tablecloth measuring 1,75 m by 1,25 m the material cost Rs 4,50 per metre find the total cost of the material
Answers
Answer: 28.26
Step-by-step explanation:
HELP!
Tell wether the angles are adjacent, vertical, or neither.
Answers
Answer:
Hello, i cant see the link, try reposting
Step-by-step explanation:
Are you really in college?
Because I learned that in 7th grade.
(just wondering)
Answer:
Sa ml may matutunan ka
Please need help with this one
Answers
x1 and y1 are coordinates of first point
x and y are coordinates of second point
(7,7) x1=7, y1=7
(-9,-1) x= -9, y= -1
-1-7=m(-9-7)
-8=m(-16)
-8= -16m multiply by -1
8=16m
m=8/16
m=1/2
Answer:
y - 7 = 1/2(x - 7)
Step-by-step explanation:
Point slope form is y - y1 = m (x - x1)
So find m = y2 - y1/ x2 - x1, so m = -1 - 7 / -9 - 7, m = -8 / -16 so m = 1/2
Then sub your (7,7) so y - 7 = 1/2(x - 7)
Write seven and three fifths as an improper fraction
Answers
Answer:
7.6
Step-by-step explanation:
I used a calculator
Answer:
38/5
Step-by-step explanation:
Convert the mixed number 7 3/5 Into an improper fraction first by multiplying the denominator (5) by the whole number part (7) and add the numerator (3) to get the new numerator. Place the new numerator (38) over the old denominator (5) .
Calculator
D
A window in the shape of a parallelogram has the dimensions
given
4 ft
What is the area of this window?
A 2 ft E
O 20 ft
0 24 ft2
0 28 ft?
O 40 ft
Answers
Photography World has a portrait special. A three-pose portrait package has a sitting fee of $35, and a six-pose package has a sitting fee of $60. On a Saturday, $690 was collected in sitting fees. Which equation can be used to represent x, the number of three-pose portrait packages and y, the number of six-pose portrait packages?
360x + 105y = 690
35x + 60y = 690
105x + 360y = 690
60x + 35y = 690
Answers
Answer:
hope it is right the answer is b
Step-by-step explanation:
i am taking the test
What is the area of the segment?
Answers
Answer:
28.54 ft²
Step-by-step explanation:
Area of segment = [tex] (\frac{\theta * \pi}{360} - \frac{sin(\theta)}{2}) * r^2 [/tex]
Where,
[tex] \theta = 90 [/tex]
r = 10 ft
Plug in the values
[tex] (\frac{90 * \pi}{360} - \frac{sin(90)}{2}) * 10^2 [/tex]
[tex] (0.7854 - 0.5) * 100 [/tex]
[tex] (0.2854) * 100 [/tex]
= 28.54 ft²
Quadrilateral RUST has a vertex at R(2,3). What are the coordinates of R' after dilation by a scale factor of 3, centered at the origin, followed by the translation (x,y)->(x,y - 1)?
Answers
Answer: it’s (6,8)
Step-by-step explanation: I took the test