I need serious help with these 2 questions. I already used the first attempt and have 1 left so please help me
Answers
Answer:
c and full truat i nwver wrong
Answer:
1. 0.13
2.0.26
Step-by-step explanation:
1. In geometric probability, the probability of an event is based on a ratio of geometric measures such as length or area.
The area model is used here. The measures of various dimensions of the sample space and the included figures are given.
The sample space is the area of the large rectangle.
Find the area of the sample space.
Substitute the known values for the length, l=25
m, and width, w=17 m, into the formula for the area of a rectangle, A=lw
.
A=(25)(17)=425
m2
The probability that a randomly chosen point will lie either inside the trapezoid or inside the triangle is the sum of the individual probabilities.
The probability that a randomly chosen point will lie inside the trapezoid is equal to the ratio of the area of the trapezoid to the area of the large rectangle.
Find the area of the trapezoid.
Substitute the known values for the bases, b1=13
m and b2=8 m, and height, h=4 m, into the formula for the area of a trapezoid, A=12(b1+b2)h
.
A=12(13+8)(4)=42
m2
Find the probability that a point chosen randomly inside the rectangle is in the trapezoid.
P1=42425
The probability that a randomly chosen point will lie inside the triangle is equal to the ratio of the area of the triangle to the area of the large rectangle.
Find the area of the triangle.
Substitute the known values for the base, b=4
m, and height, h=7 m, into the formula for the area of a triangle, A=12bh
.
A=12(4)(7)=14
m2
Find the probability that a point chosen randomly inside the rectangle is in the triangle.
P2=14425
Sum the individual probabilities to find the probability that a point chosen randomly inside the rectangle is either in the trapezoid or in the triangle.
P=P1+P2
=42425+14425
=56425≈0.13
Therefore, the probability that a point chosen randomly inside the rectangle is either in the triangle or in the trapezoid is about 0.13
2.
In geometric probability, the probability of an event is based on a ratio of geometric measures such as length or area.
The area model is used here. The measures of various dimensions of the sample space and the included figures are given.
The sample space is the area of the large rectangle.
Find the area of the sample space.
Substitute the known values for the length, l=16
m, and width, w=11.8 m, into the formula for the area of a rectangle, A=lw
.
A=(16)(11.8)=188.8
m2
The probability that a randomly chosen point will lie either inside the triangle or inside the circle is the sum of the individual probabilities.
The probability that a randomly chosen point will lie inside the triangle is equal to the ratio of the area of the triangle to the area of the large rectangle.
Find the area of the triangle.
The height of the triangle equals 11.8−7.3=4.5
m
.
Substitute the known values for the base, b=8
m, and height, h=4.5 m, into the formula for the area of a triangle, A=12bh
.
A=12(8)(4.5)=18
m2
Find the probability that a point chosen randomly inside the rectangle is in the triangle.
P1=18188.8
The probability that a randomly chosen point will lie inside the circle is equal to the ratio of the area of the circle to the area of the large rectangle.
Find the area of the circle.
The radius is half of the diameter. So, r=6.22=3.1
m
.
Substitute the known value for the radius, r=3.1
m, into the formula for the area of a circle, A=πr2
.
A=π(3.12)=9.61π
m2
Find the probability that a point chosen randomly inside the rectangle is in the circle.
P2=9.61π188.8
Sum the individual probabilities to find the probability that a point chosen randomly inside the rectangle is either in the triangle or in the circle.
P=P1+P2
=18188.8+9.61π188.8
=18+9.61π188.8≈0.26
Therefore, the probability that a point chosen randomly inside the rectangle is either in the circle or in the triangle is about 0.26
.
Related Questions
the angle of a quadrilateral are in the ratio 1 : 2 :3 :4 if the sum of the angles of a quadrilateral is 360 degree find the measure of each angle
Answers
Answer:
Step-by-step explanation:
Let the angles of quadrilateral be
x, 2x, 3x , 4x
sum of all angles of quadrilateral = 360°
x + 2x + 3x + 4x = 360°
10x = 360°
x = 360/10 = 36°
Ans. the four angles are :-
x = 36°
2x = 2 × 36 = 72°
3x = 3 × 36 = 108°
4x = 4 × 36 = 144°
Answer:
Step-by-step explanation:
Let the angles of quadrilateral be
x, 2x, 3x , 4x
sum of all angles of quadrilateral = 360°
x + 2x + 3x + 4x = 360°
10x = 360°
x = 360/10 = 36°
Ans. the four angles are :-
x = 36°
2x = 2 × 36 = 72°
3x = 3 × 36 = 108°
4x = 4 × 36 = 144°
18,26,28,22,17,28,10,16,6
Find mean,median and mode
Answers
Answer:
Mean-19
Mode-28
Median-18
Step-by-step explanation:
A book sold 36,700 copies in its first month of release. Suppose this represents 7.1% of the number of copies sold to date. How many copies have been sold to date? Round your answer to the nearest whole number.
PLEASE HELP!
Answers
Answer
516,901
Step-by-step explanation:
36,700/7.1%
you have to change the 7.1% to a decimal so its now
36,700/0.071= 516,901.4084507
round it to the nearest whole number is 516,901
which expressions are equal to 50Σn(n+6)?
Answers
Answer:
S(n)=(25/3)n(n+1)(2n+19)
Step-by-step explanation:
sum_(n=1)^k n (6 + n) = 1/6 k (k + 1) (2 k + 19)
[tex]sum_(n=1)^k n (6 + n) = (1/6) k (k + 1) (2 k + 19)\\50(1/6) k (k + 1) (2 k + 19)\\=(25/3)k (k + 1) (2 k + 19)[/tex]
This is the equation in general:
substitute n for sum from 1 to n
For sum from k to n, substitute:
S(n)-S(k-1)
Answer:
Part 1: B and D
Part 2: C
Part 3: 50575
Step-by-step explanation:
what is x and y. help plz!!!!!!!
Answers
Answer:
x = 11
y = 1
Step-by-step explanation:
N : M
8 : 1
8 N = 1 M
since there is 1 M per every 8 N, y would be 1
to find x, just take 88 and divide it by 8 to get 11
Item 9 Write an equation that you can use to find the value of x. Perimeter of triangle: 16 in.
Answers
Answer:
16 = 3x
Step-by-step explanation
Find the diagram attached.
Perimeter = sum of all its sides
Sum of all its sides= x+x+x
Sum of all its sides = 3x
Given perimeter = 16in
Equating both;
3x = 16
x = 16/3
x = 5.33in
Hence the value of x is 5.33 and the required equation is 16 =3x
Help me pls djejefjcskaeddn
Answers
Answer:
Step-by-step explanation:
1 Yes they are right angles, it is a right angle because you solve it with a Sine equation
2 the hypotenuse is the longest side
3. If the squares of the two shorter sides add up to the square of the hypotenuse, the triangle contains a right angle.
Factor this expression completely. 17x − 51y − 17 A) −17(x − 3y − 1) B) 17(x − 3y + 1) C) 17(x − 3y − 1) D) 17(x − 3y − 2)
Answers
If a number is added to a set that is far away from the mean, how does this affect standard deviation?
Answers
Adding a number to the set such that the number is further away from the mean, will increase the SD. This is because the average distance of the numbers from the mean increases.
The Standard Deviation will increase if a new number is added to the collection that deviates more from the mean. This is due to an increase in the standard deviation of the numbers.
How the standard deviation is affected if a number is added to a set that is far away from the mean?The standard deviation demonstrates how widely things vary or diverge from the mean (mean, or expected value).
The Standard Deviation will vary if all terms in the set are multiplied or divided by the same number. The Standard Deviation will vary by the same amount.
The same number will likewise be changed for the mean. Imagine an animated, proportionate size growth for the spatter. There will be a change in the "measure of spread". The distance between each term and the mean doubles if every term is doubled, but the distance between each term also doubles, increasing the standard deviation. The Standard Deviation gets smaller if each word is divided by two.
In general, the Standard Deviation is decreased when a new number is added to the set that is extremely close to the mean. Visualize the paint spatter on the wall. Would the dispersion be more or smaller if we paint a droplet extremely near the center? – decrease because there are now relative to before more droplets at the center.
To find about the similar questions on 'standard deviation', click here:
https://brainly.com/question/18187996
#SPJ2
Lani has 84 Lego blocks and 25% of them are red. How many red Legos does Lani have? Show/Explain your work
Answers
Answer:
21 red
Step-by-step explanation:
84 x 0.25 = 21
Answer:
21
Step-by-step explanation:
25% is basically 1/4.
Divide 84 by 4.
Are you sure you're old enough to be on brainly?
Stephen's lunch bill is currently at $8.33. Stephen orders a fruit salad for take-out, and wants to leave $2.25 as a tip for his server. He has $10 and a $5 bill. How much change after paying for his lunch, the fruit salad, and the tip?
Answers
Answer:
$1.53
Step-by-step explanation:
The computation of the change in the bill is shown below:
Total money he has to pay is
= $8.33 + $2.25
= $13.47
And, he have
= $10 + $5
= $15
So, the change would be
= $15 - $13.47
= $1.53
the perimeter of a rectangular sticker is 40 cm. the sticker is 13 cm tall. how wide is it?
Answers
Answer:
7
Step-by-step explanation:
40-26=14
14/2=7
If a building project takes 12 men to be completed in 54 days how many days will 9 men take to make it.
Answers
Answer:
y=72
Step-by-step explanation:
k= xy [ inverse variation]
k= 12 x 54
= 648
k= xy
648=9y
y = 648/ 9 = 72
I hope im right!!
an article is marked 60% above c.p and sold at 20% discount.Find the profit percent made.
Answers
Answer:
40%
Step-by-step explanation:
A microwave costs $60 it is on sale for 20% off what is the final price of the microwave
Answers
Answer:
48 dollars
Step-by-step explanation:
what does anyone know what perimeter is and area to help for me friends
Answers
What is the volume of the figure shown below?
12 in.
8 in.
3 in.
5 in.
3 in.
5 in.
A
36 in 3
B
75 in 3
с
288 in
D
363 in 3
PLSSS HELP
Answers
We have minor object and major object
Volume of object 1 = LWH
= 5 x 5 x 3
= 75 in ^3
Volume of object 2 = LWH
= 12 x 8 x 3
= 288 in^3
Add the volumes of both object
288 + 75 = 363 in^3
Therefore the answer is option D
Help!
What is the missing term? What is the rule? 7 1/5 , 5 13/15 , _______, 3 1/5, 1 13/15
Answers
Answer:
4 8/15
Step-by-step explanation:
The rule is subtract 1 2/6 from the number (n):
(in equation) x = n - 1 2/6
2p+3(p-I) for p=2 please tell me the answer urgent
Answers
Answer: I dont know if that is an "I" or a "1" but if it is an "I" the answer is "16-3i" but if is a "1" its 7
Step-by-step explanation:
The train takes 1 1/2 hours to get from Arno to Bentley. The train takes 5 times as long as that to get from Arno to Valdez how long is the train ride from Arno to Valdez?
Answers
Which equation shows the relationship between the number of laptops remaining, y,
and the day of the sale, x?
A. y=-3x + 18
B.y=3x + 18
C. y=-6x + 18
D. y=x+ 18
Answers
Answer:
pretty sure your answer is C.y=-6x+18
Step-by-step explanation:
Explain the difference in meaning between 8^2 +2^2 and (8 + 2)^2?
Answers
8^2 +2^2 is 68 because you only square the integer. In (8 + 2)^2, you square the product of the equation.
Answer:8^2+2^2=68 and (8 + 2)^2=100
Step-by-step explanation:
8^2+2^2
=64+2^2
=64+4
=68
(8+2)^2
=10^2
=100
Show work please and correct
Answers
Answer:
[tex] - \frac{1}{2} [/tex]
its down 1 over 2 each time
can someone help, please?
Answers
Answer:
No
Step-by-step explanation:
(4, 10)
y ≤ 2x + 1
To determine if (4, 10) is a solution to the inequality, we want to plug in the given values.
10 ≤ 2(4) + 1
[multiply] 10 ≤ 8 + 1
[add] 10 ≤ 9
Determine if this statement is true.
10 is greater than 9; therefore (4, 10) is not a solution to this inequality.
Hope this helps!
Answer:
No
Step-by-step explanation:
If you plug in 10 for y and 4 for x, you will get 10 ≤ 9 which is false.
need help, tyyyyyyyy
Answers
Answer:
$30
Step-by-step explanation:
s = shorts
t = tshirts
s + 2t = 60
s + 3t = 75
s + 2t = 60
rewrite
-2t -2t
s = 60 - 2t
s + 3t = 75
plug in
(60 - 2t) + 3t = 75
solve
60 - 2t + 3t = 75
60 + t = 75
-60 -60
t = 15
s + 2t = 60
plug in
s + 2(15) = 60
s + 30 = 60
-30 -30
s = 30
Quotient of a number and 3 increased by -7 Equals negative 144
Answers
Answer:
x = -411
Step-by-step explanation:
Number = x
Quotient of a number and 3 : [tex]\frac{x}{3}[/tex]
(x/3) increased by (-7) : [tex]\frac{x}{3}+ (-7)[/tex]
[tex]\frac{x}{3} -7 = - 144\\\\\frac{x}{3}= -144 + 7\\\\\frac{x}{3}= -137\\\\x = -137*3[/tex]
x = - 411
Answer:
-411
Step-by-step explanation:
x / 3 + -7 = -144
x / 3 = -144 + 7
x = -137 x 3
x = -411
Hope that helps!
After substituting, what is the first operation performed when evaluating 5 + (9 x minus 3) divide 2 for x = 5?
addition
multiplication
subtraction
division
Answers
Answer: multiply
Step-by-step explanation:
Explanation-
PDAS
If the price of gas increases from $1.01 per gallon to $1.21 per gallon, what is the percent of increase
Answers
What is the angle measure of each angle (2x) degrees and x degrees
Answers
Answer:
x = 30
2x = 60
Step-by-step explanation:
2x + x = 90
3x = 90
x = 30
2(30) = 60
jennifer is a wedding planner. She set up five chairs at each table for the reception. If( t )represents the number of tables, which of the following expressions represents the total number of chairs that she set up?
A. 5 + t
B. t + 5
C. 5t
D. t - 5
Answers
Answer:
C. : 5t
--
Once we find out the number of tables at the reception, we can then multiply the number of tables to 5t.