Answer:
15
Step-by-step explanation:
60/4 which is the chance it gets out of being drawn
Using the concept of probability, the reasonable prediction for the number of times a purple marble will be drawn is 12 times (option A).
What is a reasonable prediction for the number of times a purple marble will be drawn?To predict the number of times a purple marble will be drawn, we can use the concept of probability. The probability of drawing a purple marble in a single draw is the number of purple marbles (4) divided by the total number of marbles (5 + 6 + 3 + 2 + 4 = 20).
Probability of drawing a purple marble = 4 / 20 = 1/5
Since the student makes a total of 60 draws and each draw is independent (the marble is returned to the bag after each draw), we can use the concept of expected value to predict the number of times a purple marble will be drawn.
Expected value = Total number of draws × Probability of drawing a purple marble
Expected number of times a purple marble will be drawn = 60 × (1/5) = 12
Learn more on probability here;
https://brainly.com/question/25870256
#SPJ2
PLS HELP ME I AM GIVING 35 POINTS questions in the image pls help so the there are 3 questions pls help the answer to the first one is 156.25cm the second is 221.76cm the thrid one answer is 65.51cm I have provided the answers pls explain how the answers came and the formula to all three questions.
Answer:
a) 156.25 cm^2 b) 221.67 cm^2 c) 65.42 cm^2
Step-by-step explanation:
a)
We know that the formula for the area of a quadrilateral is Length x Height (A = LH).
Since the length and height of a square is the same, L = 12.5cm and H = 12.5cm.
So we incorporate our formula for the area of a square into this situation:
A = 12.5 x 12.5
A = 156.25 cm^2
b)
We know that the formula for the area of a circle is Pi x radius squared (A = πr^2).
Since we know that the diameter of the circle is 16.8cm, we will use this to find the radius.
Radius can be found by halving the diameter (r = d/2).
So we incorporate our formula for radius into this situation:
r = 16.8/2
r = 8.4cm
Now that we have our radius, we can find the area of our circle.
So we incorporate our formula for the area of a circle into this situation:
A = π(8.4)^2
A = 221.6707776 = 221.67 cm^2
c)
We can see from the diagram that the shaded portion come mainly from the circle. So to find the area of the shaded part, we can simply subtract the area of the square, from the area of the circle (A of circle - A of square = Area of shaded part).
So we incorporate our formula for the area of the shaded part into this situation:
A = 221.67 cm^2 - 156.25 cm^2
A = 65.42 cm^2
Identify a two-step inequality that can be represented by the graph.
Answer:
Equivalent expressions: negative numbers & distribution
Step-by-step explanation:
HELP ASAP FOR HOMEWORK
Answer:
Total cost of each class = 26s + a
Step-by-step explanation:
52/2 = 26
26*s + 1*a
PLS HELP MY TEACHER WANTS ME TO PASS THIS!
Answer:
$45
Step-by-step explanation:
Solution
First, let's translate the problem into an equation:
y = 5x + 45.The number 5 represents 5 dollars per hour (slope), and 45 represents the y-interceptThe y-intercept is sometimes known as the initial value or initial cost in a problem. Since our y-intercept is 45, the initial value is $45.
A pattern increases by 3. List three possible nth terms for such a pattern that each include a decimal constant. I will brainliest the best answer
Answer:
an=3n (A1=3)
an=3n+3 (a1=6)
an=3n-3 (a1=0)
PLEASE HELP I WILL GIVE BRAILYEST
Answer: A = 0.28
Step-by-step explanation:
Could someone help with a maths question? The attachment has the questions on it.
The days she has recorded: 11 + 10 + 7 + 6 + 3 + 2 = 39
The mode distance (most often): 5 km
Median distance: 6.64 km ~= 6.5 km ~= 7 km by rounding upwards, so 3rd
Cumulative frequency: 11; 21; 28; 34; 37; 39
The bases of a prism are right triangles with leg lengths of 7 inches and 5 inches. The prism height is 12 inches.
Answer:
D) 420 Cubic Inches
Step-by-step explanation:
7 x 5 x 12= 420
Step-by-step explanation:
i think it's d 420 cubic inches
What are the coordinates of point A? (8, –6) (–6, 8) (–5, 7) (7, –5) giving 100 point
Answer:(7,-5)
From a x axis point is 7
From a y axis point is -5
Thus coordinates are (7,-5) because in any point coordinates are always in the form (x,y).
Hope this Helps! :)
Answer:
D. (7, -5)
Step-by-step explanation:
A coordinate is a point on a graph. A coordinate is written as (x, y), where x represents the x-value and y represents the y-value.The x-value represents the number of units left or right from the origin (0, 0), and it becomes negative as it moves left and positive as it moves right.The y-value represents the number of units up or down from the origin (0, 0), and it becomes negative as it goes down and positive as it goes up.For example, the coordinates (-4,8) indicate that the x-value moves four units to the left and the y-value moves eight units up.We are asked to find the coordinates of point A:
The x-value is positive 7, indicating that the point moved seven units to the right of the origin.The y-value is negative 5, indicating that the point dropped five units from the origin.Our coordinates would be: (7, -5)Learn more about graphing coordinates here:
brainly.com/question/118885
HELPPP!!!!! I AM GIVING BRAINLIST FOR CORRECT ANSWERS!!!!!!
A pyramid has a volume of 1,944 in.³ and a rectangular base with the dimensions 18 inches by 9 inches. What is the height of the pyramid?
A: 4 in.
B: 12 in.
C: 24 in.
D: 36 in.
Answer:
The answer is 36 in
Step-by-step explanation:
hope this helped! :D
(pls give brainlest)
Find the area of the parallelogram.
Can someone help me solve this and explain it to me so that I can get the hang of it? Thank you! (Extra Points)
Answer:
√4
Step-by-step explanation:
because 9x9=81
Hope this helps!!
uh i need help bc i cant get the question correct
Answer:
164
Step-by-step explanation:
Finding the Surface Area :
Area (2 triangles) + Base rectangle + Left rectangle + Right rectangle2 x 1/2 x 4 x 5 + 9 x 5 + 6 x 9 + 5 x 920 + 45 + 54 + 4565 + 99164 cm²Step-by-step explanation:
just take a deep breath, shake your limbs, and then focus on it again.
the surface consists of 5 areas :
front and back triangles (2)
left rectangle
right rectangle
floor rectangle
the area of a rectangle is simple :
length × width
the area of a triangle is
baseline × height / 2
each of the front and back triangles has an area of
5 × 4 / 2 = 5×2 = 10 cm²
both of them have then 10×2 = 20 cm²
the left rectangle is
9×6 = 54 cm²
the right rectangle is
9×5 = 45 cm²
the floor rectangle is also
9×5 = 45 cm²
so, the total surface area is
20 + 54 + 45 + 45 = 164 cm²
41. Identify the graph of the equation as a parabola (with vertical or horizontal axis), circle, ellipse, or hyperbola.
x^{2}+3 x=3 y-6
The picture shows a circular clock face.
The long hand of the clock is about 5 inches long. What is the approximate area of the clock face?
A. 5π
square inches
B.
10
π
square inches
C.
25
π
square inches
D.
100
π
square inches
Answer:
[C] 25π square inches
Step-by-step explanation:
Given that:
the long hand of the clock is about 5 inches long.
To Find:
What is the approximate area of the clock face?
Solve:
Formula - A =πr²
Note that;
π = 3.14 (about)
Radius - 5 inches
A =πr²
A = 3.14(5)²
A = 3.14(25)
A = 78.5
Now let see the answer choices:
A. 5π square inches ≈ 5(3.14) = 15.7
B. 10 π square inches ≈ 10(3.14) = 31.4
C. 25 π square inches ≈ 25(3.14) = 78.5
D. 100 π square inches ≈ 100(3.14) = 314
Hence, the answer is [C] 25 π square inches
Kavinsky~
Answer:
[C] 25π square inches
Step-by-step explanation:
25(3.14) = 78.5
PLS HELP MY TEACHER NEEDS ME TO PASS THIS!
Answer:
1st option
Step-by-step explanation:
The population of 150,000 decreases each year by 150
Since the population is decreasing it would be -150 iguana's
[tex]\frac{-150 iguanas }{1 year}[/tex]
Answer: A
Step-by-step explanation:
facts
there are 150,000 iguanas. each year, we lose 150.
The rate of change is a fixed amount of something increasing or decreasing in a certain amount of time. Since the population loses 150 iguanas each year, the rate of change, or unit rate, is -150 (if it decreases, its negative).
hope this helps :))
Find The Surface Area Of The Pyramid
Mathematics personal financial literacy
helppp please i really
Answer:
the and is 574
Step-by-step explanation:
in the function table it shows that that they r all multiples of 14
therefore 14×41 = 574
Answer:
574
Step-by-step explanation:
ill give brainly
Dylan's garden is 9 feet long.
How long is the garden in inches?
(1 foot = 12 inches)
9 in.
21 in.
101 in.
108 in.
Answer108in
Step-by-step explanation:9x12=108
PLEASE HELP 3 QUESTION I'LL GIVE BRAINIEST
Answer:
corresponding angles= angle CAB and angle GEF
corresponding sides = side FE and AB
Step-by-step explanation:
please mark brainliest
Answer:
just so you can mark them brainlist :)
Step-by-step explanation:
A bat descends at a steady rate from 45.625 feet above the ground to a spot 36.5 above the ground in 3.75 seconds.
What is the bat’s change in elevation in feet per second? Round your answer to the nearest hundredth.
Enter the correct answer in the box.
Answer: 2.43
Step-by-step explanation:
69. If four coins are flipped, find the probability and the odds of obtaining one head and three tails.
Answer:
The probability is 4/16 = 1/4
Step-by-step explanation:
Will give brainly for correct answer!!!! 30pts
Answer:
We are given a perimeter and three different lengths and we need to determine the corresponding width and area.
The first length that is provided is 2 feet and to get a perimeter of 16 feet which we can then use the perimeter formula to get 2(2 + 6) which gives us a perimeter of 16 feet and a width of 6 feet. We can then get the area by multiplying the length by width which gives us 12 feet squared.
The second length that is given is 4 feet and to get a perimeter of 16 feet which we can then use the perimeter formula to get 2(4 + 4) which gives us a perimeter of 16 feet and a width of 4 feet. We can then get the area by multiplying the length by width which gives us 16 feet squared.
The final length that is given is 5 feet and to get a perimeter of 16 feet which we can then use the perimeter formula to get 2(5 + 3) which gives us a perimeter of 16 feet and a width of 3 feet. We can then get the area by multiplying the length by width which gives us 15 feet squared.
Therefore, the field that would require the most amount of paint (the largest area) is option B, region #2.
Hope this helps!
Louisa’s savings change by -$6 each time she goes bowling. In all, it changed by -$66 during the summer. How many times did she go bowling in the summer?**Just write the number
Answer: She went [tex]11[/tex] times during the summer.
Step-by-step explanation:
If Louisa's savings change by [tex]-6[/tex] each time she goes bowling and it went to [tex]-66[/tex], that means that Louisa went another [tex]11[/tex] times.
[tex]\frac{1}{11}[/tex]
So therefore your answer would be 11.
What is the volume of the figure below?
2 stacked rectangular pyramids. The pyramids have a base of 4 feet by 5 feet and a height of 4.5 feet.
30 feet cubed
60 feet cubed
90 feet cubed
120 feet cubed
After being exposed to an electromagnetic shrinking machine, Joe's height decreased by 120m over 4 seconds. His height decreased by the same amount each second.How much did Joe's height change each second?
-30m
20 m
-124 m
100 m
It is given that Joe was being exposed to an electromagnet shrinking machine. Because of this his height started decreasing .
Given,
The decrease was at a constant rate per second.
In 1.5sec, the height is decreased by 120cm.
So,
Variation per second =
Change in each second would be with negative sign indicate's decrease .
Hence, Answer is “-80” .
Hope it's helpful to you.
Please mark as Brainliest answer.
i need some help with this one
Answer:
G
Step-by-step explanation:
The decimal value (to the nearest hundredth) of √6 is : 2.49
Hence, the point which lies roughly in the middle of 2 and 3 is : G
Answer:
G
Step-by-step explanation:
to identify which number √6 is closest too, we should look at the perfect squares closest to 6
the two closest perfect squares would be 4 and 9
√4 = 2 and √9 = 3
6 is about in between 4 and 9
so we can expect √6 to be in between 2 and 3 more in the middle so G is the best answer
Marcus earns $25 each week for helping out yard work. Write an expression that could be used to find the amount he earns working any number of weeks, w. v.
Pls help me!
Answer: 25w
Step-by-step explanation:
You multiply the amount earned ($25) by the number of weeks,(which is unknown in this case and can be represented as w).
57. A rectangular room measures 12 1/2 feet by 15 1/3 feet. It is divided into three equal parts.
Calculate the area of one of those parts.
