To gather data on a 1200-acre pine forest in Louisiana, the U.S. Forest Service laid a grid of 1410 equally spaced circular plots over a map of the forest. A ground survey visited a sample of 10% of the plots. 13 a. Explain how you would use a random number generator to choose an SRS of 141 plots. Your description should be clear enough for a classmate to carry out your plan. b. Use your method from part (a) to choose the first 3 plots.
Answers
To make a random selection using a random number generator, we could make use of a computer programming to execute the task by following the steps below ;
Total number of plots = 141010% of total = 0.1 × 1410 = 141 plotsA.) Using python 3 to generate a random sample of 141 plots :
import random
#import the random module
random_sample = random.sample(range(1410), 141)
#using the sample method, randomly select a sample of 141 plots from the total number of plots, 1410
print(random_sample)
#display the randiy selected plots which is 10% of the total
B.) Choosing the first three plots using the method described in (A)
first_3 = random_sample[:3]
#from the 141 random samples, use list slicing to select the first three plots from the sample
print('\n The first 3 plots are : ' , first_3)
#display the first three sample plots selected.
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Related Questions
HELP PLEASE!!!!!!!!!
Answers
9514 1404 393
Answer:
A) W'(-4, 2), ...
Step-by-step explanation:
Put the values of x and y in the translation relation to see what the translated point's coordinates are.
(x, y) ⇒ (x -7, y +4)
W(3, -2) ⇒ W'(3 -7, -2 +4) = W'(-4, 2) . . . . . . . . matches only choice A
Jaylo bought a television priced at $349. She received a 20% discount and paid a 7% sales tax. What is the total price of the television? A. $74.69 B. $298.74 C. $348.87 D. $448.12
Answers
Answer:
B
Step-by-step explanation:
349 ---100%
x ------ 20%
x= (349×20)÷100
x=69.8
349-69.8=279.2
279.2 ---100%
x-----7%
x=(279.2×7)÷100
x=19.54
Final result
279.2+19.54=298.74
And final result is B
The total price of the television is B. $297.74
Given that,
Jaylo bought a television priced at $349. She received a 20% discount and paid a 7% sales tax.Based on the above information, the calculation is as follows:
[tex]= (\$349 \times (1- 0.20) + \$349 \times (1- 0.20) \times 0.07)\\\\= \$279.20 + \$19.544[/tex]
= $297.74
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Write 19/25 in decimal form.
Answers
0.76 19 divided by 27= 0.76
*Will Give Brainliest Answer Please Help*
Find a quadratic equation that models the situation, and use it to solve the problem. Show your work..
Two square shaped swimming pools need to be constructed by the local civic body for athletes training. The difference between the perimeters of the two pools is 16 ft. If the sum of the areas of the two pools is 730ft^2 , find the side length of the smaller pool.
Answers
Answ
tep-by-step explanation:
Hansen thinks his pet goldfish, Finn, might be lonely. So, Hansen buys another goldfish to keep Finn company. He also buys a large 10-gallon tank so the two fish can swim together. If Finn currently lives in a 2-quart fish bowl, how many times bigger is his new tank than his old bowl?
Answers
Answer:
Well, 1 gallon is 4 quarts so if Finn lives in a ½ Gallon tank divide 10 by 0.5 and you get 20, so his new tank is 20 times bigger than his old bowl.
Step-by-step explanation:
Math rocks! Have fun!
Ben has 69 planks that are of standard size. He would need 5 such planks to make a bookshelf. Find the maximum number of bookshelves Ben can make.
Answers
Answer:
13
Step-by-step explanation:
69/5=13 remainder 4
u cant make a bookshelf with 4 planks
Answer:
13
Step-by-step explanation:
69 total planks divided by 5 for each bookshelf.
That would be 69÷5=13.8
Seeing as you can't make .8 of a shelf, those planks would just be extra.
x ft
x ft
Bedroom
5 ft
Closet
5 ft
6 ft
Bathroom
Answers
Answer:
bedroom is 12ft which is equal to 6ft on left of bathroom if we add 6 +6=12 because it is rectangle and bathroom is square and square have 4 equal sides so both sides are 12ft
is -4/5 or is-8/9 bigger
Answers
Answer:
-4/5 will be bigger.
Step-by-step explanation:
This is true as -4/5 is equal to -.8 compared to -.888888888.
two complementary angles are in a ration of 2 3 find the measure of each angle
Answers
A complementary angle is 90 degrees. The ratio is 2:3 so the equation would be:
2x+3x=90
5x=90
x=18
One of the angles would be 2(18) or 36 degrees and the other angle would be 3(18) or 54 degrees.
36+54 is equal to 90 degrees so it checks out.
16x2 – 8x = ?
Choose 1 answer:
8(2x - 1)
B
8x(2x – 1)
8x (2x2 – 2)
8(2x2 – 2)
Answers
Answer:
8(2x-1)
Step-by-step explanation:
At 1 p.m., there were 257 visitors in the museum.
Answers
Use function notation to represent this statement:
At 1 p.m., there were 257 visitors in the museum.
Answer: V(4)=257
Explanation: It says that the Museum opens at 9 so it would be 4 hours. And the 257 is the number of visitors at that time.
Easy? Please help me
Sarah earns $
8.50
8.50 per hour babysitting. She needs to make at least $
187
187 to buy a new bike.
Write an inequality to represent the number of hours Sarah needs to work to afford the bike.
187
h
≥
8.50
187h≥8.50
187
h
≤
8.50
187h≤8.50
8.50
h
≥
187
8.50h≥187
8.50
h
≤
187
8.50h≤187
Answers
Answer:
The answer is A
Step-by-step explanation:
Hope it helps!
Ski rental is $45 for 3 hours and $10 for each additional hour. You pay $75. How many additional hours did you pay
Answers
Answer:3
Step-by-step explanation:Its really easy?
Can you use the perpendicular bisector theorem to solve for RS?
a)yes
b)no
Answers
Reasoning:
• A bisector is a Geometric figure line or line segment that intersects a line or shape at the midpoint and divides it into 1/2 or a 1:1 ratio.
• Therefore, a perpendicular bisector is a bisector that intersects a Geometric figure at 90°.
• Because a bisector divides a figure into two equal parts, a perpendicular bisector splits a figure into two congruent parts with a 90° intersection.
• Therefore, with perpendicular bisector RT, segments UR and RS are congruent.
• So, segment UR = 17, which means that segment RS = 17 because the bisector splits it into two halves or congruent parts.
Find the value of x so that | || m. State the converse used
Answers
Dilations of a triangle are congruent to the original triangle. true or false
Answers
Answer true
Step-by-step explanation:
true
PLEASE ANSWER IN POINT SLOPE FORM
Answers
Answer:
y-4 =-5(x+1)
Step-by-step explanation:
Point slope form is
y-y1 = m(x-x1) where m is the slope and (x1,y1) is a point on the line
y-4 = -5(x- -1)
y-4 =-5(x+1)
Answer:
y-4 = -5 (x- (-1))
Step-by-step explanation:
blank 1 = -4
blank 2 = -5
blank 3 = -1
In ΔBCD, \text{m}\angle B = (5x+14)^{\circ}m∠B=(5x+14)
∘
, \text{m}\angle C = (x+19)^{\circ}m∠C=(x+19)
∘
, and \text{m}\angle D = (2x+19)^{\circ}m∠D=(2x+19)
∘
. What is the value of x?x?
Answers
Answer:
x = 16
Step-by-step explanation:
m<B+m<C+m<D = 180°
5x + 14 + x + 19 + 2x + 19 = 180
8x + 52 = 180
8x = 180 - 52
x = 128/8
x = 16
HELP HELP HELP HELP HELP HELP
long explanation long please
Answers
__________
[tex] \: [/tex]
[tex] \frac{x + 2}{x - 1} = ...[/tex]
[tex] \longmapsto \frac{ \cancel{x} + 2}{ \cancel{x} - 1} [/tex]
[tex] \longmapsto \frac{2}{ - 1} [/tex]
[tex] \longmapsto \boxed{ \bold{ \red{ - 2}}}[/tex]
can someone please help me i need help
Answers
Answer:
None
Step-by-step explanation:
It would be easier to ask your teacher instead of getting wrong answers from random people. Ever think of that :0
What is cos(45°)?
45°
1
Cos (459) = VI?
[]
COS
=
Hint: Remember to rationalize the denominator.
Answers
Answer:
[tex]\rm \dfrac{\sqrt2}{2}[/tex]
Step-by-step explanation:
A right angled ∆ is given to us and we need to find out the value of cos 45° ( with rationalized denominator ) . As we know that in a right angle ∆ , the value of cosine is ,
[tex]\rm\implies cos\theta =\dfrac{base}{hypotenuse} [/tex]
In the given triangle ,
Value of base = 1 Value of hypotenuse = √2On substituting the respective values ,
[tex]\rm\implies cos45^\circ =\dfrac{1}{\sqrt2} [/tex]
For rationalizing the denominator , multiply numerator and denominator by √2 , we have,
[tex]\rm\implies cos45^\circ=\dfrac{1(\sqrt2)}{(\sqrt2)(\sqrt2)} [/tex]
Simplify ,
[tex]\rm\implies \boxed{\pink{\frak{ cos45^\circ=\dfrac{\sqrt2}{2} }}}[/tex]
¿Cuál es el perímetro de un rectángulo, si su diagonal mide 37 m y el ancho mide 12 m ?
Answers
Answer:
94 m
Step-by-step explanation:
Sea L definido como
L = la longitud del rectángulo, en unidades de metros.
Así, según el Teorema de Pitágoras, tenemos que
12 ^ 2 + L ^ 2 = 37 ^ 2
L ^ 2 = 37 ^ 2-12 ^ 2
L ^ 2 = (37 - 12) (37 + 12)
L ^ 2 = 25 * 49, de modo que
L = 5 * 7 = 35.
Por lo tanto, el perímetro = 2L + 2W = 2 (L + W) = 2 (35 + 12) = 2 (47) = 94 m
HELLOPPPPPPPPPPP PLEASEEE GEOMETRY
Answers
Answer:
the answer is low of contrapositive
I went to the movies and bought 4 tickets. It cost me 23 dollars for the tickets after I applied my 5 dollar Tuesday discount. Create an equation for this situation where x is cost of each ticket. How much did each ticket cost? (answer asap pls)
Answers
Answer:
x= 5.75$
Step-by-step explanation:
23 divided by 4 = 5.75$ (without the discount it is 10.75$)
Answer:
each ticket=$7.
x=7
Step-by-step explanation:
The total price of your tickets AFTER applying your $5 discount was 23.
Therefore, the price of 4 tickets would be 23+5, aka 28.
We can first begin with,
4x-5=23
4x=23+5
4x=28
x=7.
Help please ill mark brainliest!
Answers
The polygon is 5 units in length and not 4
so using the given formula P = 2l + 2w
(2 x 5) + (2 x 3)
10 + 6
= 16 units
Mary got a rectangular box. If the perimeter is 82cm and the length is 23cm, what is the
width of the box?
Answers
Answer:
w = 18cm
Step-by-step explanation:
Using the formula
P = 2 (l + w)
Solving for w
w = P
2﹣l = 82
2﹣23 = 18cm
Complete the square:
x2 - 6x + 9=-13+ blank
Answers
Answer:
to complete the square, you add (b/2)^2 on both side. in this case, b is -6, half of -6 is -3, -3 squared is 9, so:
x^2-6x+9=-13+9
(x-3)^2=-4
This quadratic equation have unreal solutions
Step-by-step explanation:
Answer:
Step-by-step explanation:
To complete the square, divide the coefficient of x by 2.
6 /2 = 3
Take square of 3 and add to both sides
3*3 = 9
x² - 6x + 9 = -13 + 9
x² - 6x + 9 = -4
(x - 3)² = -4
Which number line represents the solution set for the given inequality?
x + 1 ≤ -3 or -4x < -8
Answers
The solution to the system of equations is x≤ -4 and x > 2. Find the number line attached below:
Given the set of inequalities expressed as;
x + 1 ≤ -3 or -4x < -8
For the inequality expression x + 1 ≤ -3
x ≤ -3 - 1
x ≤ -4
For the inequality expression:
-4x < -8
Divide both sides by -4
-4x/-4 > -8/-4
x > 2
Hence the solution to the system of equations is x≤ -4 and x > 2. Find the number line attached below:
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Answer choice B is incorrect
Answers
Answer:
i'd say C, reason being is because the origin is not directly on the point, so the dilation moves up 1.5
Step-by-step explanation:
I need help on this question please help
Answers
Answer:
on day 6
Step-by-step explanation:
you would multiply