The expected value of the spinner landing on pink will be 18.
What is the expected value?The anticipated value is an extension of the weighting factor in statistical inference. Informally, the anticipated value is the simple average of a significant number of outcomes of a randomly selected variable that was separately chosen.
The expected value is given below.
E(x) = np
Where n is the number of samples and p is the probability.
If Kelly spins the spinner 120 times. The table is given below.
Color Frequency
Pink 6
Purple 12
Yellow 9
Blue 13
Total 40
Then the probability of the pink color will be
p = 6 / 40
p = 0.15
Then the expected value of the spinner landing on pink will be
E(x) = 120 x 0.15
E(x) = 18
The expected value of the spinner landing on pink will be 18.
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PLEASE HELP ME FIND THE ANSWER!!!!
Answer:
Step-by-step explanation:
Remark
The position of these two angles is called vertically opposite. Every time two lines cross like this, you get vertically opposite angles. The point is that vertically opposite angles are equal.
x + 5= 46 Subtract 5 from both sides
x + 5-5 = 46-5
x = 41
\ 28,24,32,28,25,34\ What is the MAD for these numbers ?
Multiply 6/5 by the reciprocal of (-3/8)
Answer:
-48/15, simplified to -16/5
Step-by-step explanation:
The reciprocal of -3/8 is -8/3. So the equation will be 6/5 x -8/3. Multiply numerators then multiply denominators to get -48/15. This can simplify to -16/5 by dividing both by 3.
Answer:
Step-by-step explanation:
hello :
6/5 by the reciprocal of (-3/8) means : ( 6/5 )(-8/3) = - 48/15 = -16/5
The range of y = - 32x ^ 2 + 90x + 3
Enter a problem...
Algebra Examples
Popular Problems Algebra Find the Domain and Range y=3/2x^2+4x-9
y
=
3
2
x
2
+
4
x
−
9
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.
Interval Notation:
(
−
∞
,
∞
)
Set-Builder Notation:
{
x
|
x
∈
R
}
The range is the set of all valid
y
values. Use the graph to find the range.
Interval Notation:
[
−
35
3
,
∞
)
Set-Builder Notation:
{
y
∣
∣
∣
y
≥
−
35
3
}
Determine the domain and range.
Domain:
(
−
∞
,
∞
)
,
{
x
|
x
∈
R
}
Range:
[
−
35
3
,
∞
)
,
{
y
∣
∣
∣
y
≥
−
35
3
}
image of graph
Answer:
y ≤ 66.28 -> -∞
Step-by-step explanation:
y = a (x-h)² + k ... (h,k): vertex
y = - 32x² + 90x + 3
= -32 (x² - (90/32)x + (90/64)²) + (3 + (32)*(90/64)²)
= -32 (x² - 2*(90/64)x + (90/64)²) + (3+63.28) ... 90/64=1.41
= -32 (x - 1.41)² + 66.28
h = 1.41
k = 66.28 .... extremum of y value
y ≤ 66.28 (y is real number)
How many (and of what nature) roots does the function have?
Step-by-step explanation:
(x+1) (x+4)
x * x make x^2
1 & 4 when multiplied make 4 and when added make 5
Here are some pictures of my question helpp pleaseee
Answer:
3. B = Median
4. A =skewed right
Step-by-step explanation:
6. Write the equation that represents the points in
the table in vertex form.
The vertex of the function is (0, 2).
X |. Y
-2.| 6
-1 |. 3
0. | 2
1. | 3
2. | 6
Answer:
0. | 2
Step-by-step explanation:
I took (0.2) and made an equal sign and gave me 0. | 2
given that 4x^2-32x-20+k is a perfect square find k
Answer:
k = 20Step-by-step explanation:
Perfect square identity:
(a + b)² = a² + 2ab + b²Completing the square:
4x² - 32x - 20 + k = (2x)² - 2*2x*8 + 8² - 20 + k =(2x - 8)² - (20 - k)In order the given to be a perfect square, we need:
20 - k = 0k = 207th grade math help me pleaseeee
Answer:
Step-by-step explanation:
Each game costs 2 dollars, so that total spent on games will be 2 * x. We have to add the one time payment of $3, so this will be (2 * x) + 3. Finally, she spends a total of $17, so the final equation will be (2 * x) + 3 = 17.
Can someone please help me with math.
Answer:
Its C
Step-by-step explanation:
The area of trapezium shaped field is 480 square meter, the distance between two parallel sides is 15m and one of the parallel side is 20m. Find the other parallel side
Answer: 44 m
Step-by-step explanation:
Given
The area of the trapezium is [tex]A=480\ m^2[/tex]
Distance between parallel sides [tex]h=15\ m[/tex]
One of the parallel sides is [tex]20\ m[/tex]
Suppose the other parallel side is [tex]x[/tex]
The area of the trapezium is
[tex]A=\dfrac{1}{2}\times [\text{Sum of parallel sides}]\times h[/tex]
Put values
[tex]\Rightarrow 480=\dfrac{1}{2}\times [20+x]\times 15\\\\\Rightarrow 480\times 2=300+15x\\\Rightarrow 960-300=15x\\\Rightarrow x=44\ m[/tex]
Jose bought 750 bags of peanuts for $375.00. He intends to sell each bag for $0.15 more than he paid. How much should he charge for each bag?
$0.35
$0.50
$0.55
$0.65
pls help will givebrainly
Answer:
20 people
Step-by-step explanation:
yes
The table below displays the purchases that Graphic DesignWorks made from
a manufacturer this year for graphic T-shirts. If Graphic DesignWorks uses
LIFO, and it has 400 T-shirts left in its inventory, what is the value of its current
stock?
Number of T-
shirts
Price per T-
shirt
Month of
purchase
June
July
August
September
200
300
400
300
$8
$10
$12
$13
A. $3600
B. $5200
C. $5100
D. $3200
Answer:
a.
Step-by-step explanation:
please make me a happy with brainleist answer
The value of its current stock is $3600 if the graphic design works use LIFO, and it has 400 T-shirts left in its inventory option (A) is correct.
What is LIFO?Last in, first-out (LIFO) is an inventory valuation approach based on the principle that the first asset sold is the most recent asset received.
We have data shown in the table:
Total number of T-shirts = 200+300+400+300 = 1200
As there are only 400 T-shirts left it means,
So (1200-400)800 T-shirts sold out according to LIFO last month T-shirt sold out.
200 T-shirts left in the June stock
Out of 300, there are 200 T-shirts left in the month of July.
Cost for 200 T-shirts = 200×8 = $1600
Cost for 200 T-shirts = 200×10 = $2000
Total cost = 1600+2000
= $3600
Thus, the value of its current stock is $3600 if the graphic design works use LIFO, and it has 400 T-shirts left in its inventory.
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look at pic I need help!!!! :(
Answer: x=12
Step-by-step explanation:
5x-15=2x+21(AIA)
3x-15=21
3x=36
x=12
Liliana's monthly budget is represented by the pie chart below. All amounts
are in dollars.
Answer:
B option 13%
Step-by-step explanation:
total monthly budget=429+924+198+ 858+363+528=3300
car expanse=429
Now divide
car expanse/total budget
429/3300=0.13
for %age multiply answer with 100
0.13*100=13%
The equation
^
Y=-0.37x^2+6.15x+52.3 approximates the average temperature in October in degrees Fahrenheit at an agricultural community x hours after 5 a.m.
What is the best estimate for the average temperature in October at 2 p.m.?
64 F
67 F
71 F
78 F
Answer:
best approximate is 78 F. to find x, count number of hours between 5 am and 2 pm (which is 9). Substitute 9 into the equation and solve. hope this helps!
Step-by-step explanation:
[tex]y = - 0.37 {x}^{2} + 6.15x + 52.3 \\ y = - 0.37 ({9}^{2} ) + 6.15(9) + 52.3 \\ y = - 0.37(81) + 6.15(9) + 52.3 \\ y = - 29.97 + 55.35 + 52.3 \\ y = 77.68[/tex]
What is the value of the expression below? ( 3 + 1 × 5 ) 2
Answer:
(3+ 5)2=8*2=16
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
(3+1*5)2
B- brackets
I- indices
D- division
M- multiplication
A- addition
S- subtraction
1*5=5
5+3=8
8*2=16
Express your answer in scientific notation.
4.9 X 10^5 – 5.8 X 10^4
WILL MARK BRAINLIST
Answer: =432000
Step-by-step explanation: Hope this help :D
1. Simplify.
a) 698 x 32
b) 984 : 24
Answer:a) 34916 b) 411
Step-by-step explanation:
find the measure of x
please no bots:(it’s easy
Answer:
60
Step-by-step explanation:
There are 6 equal angles that add up to 360 in that diagram. That means that if you divide 360 by 6, then you get 60.
Hope that this helps!
Edit: Thanks for the Brainliest!
How many solutions does the system of equations below have? y = −6x + 9 y = 98x − 3
Answer:
one solution
Step-by-step explanation:
by subsitution,elimination and comparison
WILL MARK BRAINLIEST IF CORRECT
please help <3
Answer: It should be A I did the math but sorry if its wrong.
Step-by-step explanation:
Answer:
A
Hope this helps
If a chicken has 4kg of corn, how many days will it last if it eats 1/8 of a kg of corn a day?
Answer:
32 days
Step-by-step explanation:
4 ÷ ⅛ =
4 × 8 = 32 days
Answer:
32 days
Step-by-step explanation:
4kg÷⅛ of a kg
=4/1× 8/1.......... that is the reciprocal of ⅛
=32 days
Using the frequency table below
Answer:
50%
Step-by-step explanation:
if you look below girls (in total) bought 100 pepsi colas and thats half of the total (200)
Marco weighs 80 pounds, his bones make up to about 1/5 of his body weight. how much do his bones weigh?
12 pounds
16 pounds
6 pounds
2 pounds
Answer:
16 pounds
Step-by-step explanation:
1/5 is just 20% percent as a fraction so just multiply 80 by 205 to get 16.
Find Y to the nearest degree
Answer:
The answer is D =35°
Tan inverse of 19/27
Yoko can type 36 words in 6 minutes what is her rate in the words per minute
Answer:
6 words per minute
Step-by-step explanation:
Divide 36 by 6 minutes to find how many words per minute
Answer:
6 words per minute
Step-by-step explanation:
36 words/ 6 minutes = 6 words per minute
. Select all of the situations below that model this fraction. *
A. 243 people were at the park. 20 people were playing volleyball. How many people were not playing volleyball?
B. Marcy's bookshelf had 20 shelves. She had 243 books. How many books would go on each shelf if she put the same number of books on each shelf?
C. Josh made $243 in 20 days. How much did he earn each day?
D. Sally and Len bicycled 243 miles in 20 days. How many miles did they bicycle each day?
NEED HELP IN TEST
Answer:
i think the answer is B, C and D
What is the value of the expression 6 +5. (8 + 2)²?
The value of the expression 6 +5. (8 + 2)² is 506 after solving with BODMAS rule.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
We have an epression:
= 6 +5. (8 + 2)²
We can solve the above expression by BODMAS:
= 6 + 5(10)²
= 6 + 5(100)
= 6 + 500
= 506
Thus, the value of the expression 6 +5. (8 + 2)² is 506 after solving with BODMAS rule.
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