Answer:
x= -3
Step-by-step explanation:
In a game, you have a 1/21 probability of winning $107 and a 20/21 probability of losing $5. What is your expected winning?
A) $0.33
B) $9.86
C) $5.10
D) -$4.76
Answer:
The correct option is A.
Step-by-step explanation:
The formula to compute the expected value is:
[tex]E(X)=\sum x\cdot P(X)[/tex]
The information provided can be summarized as follows:
X P (X)
Win $107 1/21
Lose -$5 20/21
Compute the value of expected winning as follows:
[tex]E(X)=\sum x\cdot P(X)[/tex]
[tex]=(107\times\frac{1}{21})+(-5\times\frac{20}{21})\\\\=\frac{107}{21}-\frac{100}{21}\\\\=\frac{107-100}{21}\\\\=0.33333333\\\\\approx \$0.33[/tex]
Thus, the value of expected winning is $0.33.
The correct option is A.
The dolphin dives 20 feet below the surface of the ocean. What is the dolphins elevation in feet?
Answer:
-20 Feet.
The dolphin went below its initial starting point, Zero
Stuck on this problem for awhile
Answer:B
Step-by-step explanation: 1/3*5=5/3*2/9=10/27
help meh plss :) i don't know the answer
Answer:
33 1/3
Step-by-step explanation:
Lin runs 5 laps around a track in 6 minutes.
How many minutes per lap is that?
How many laps per minute is that?
If Lin runs 21 laps at the same rate, how long does it take her?
Answer:
1.2 minutes is per lap
0.33 laps per minute
I can only do this much hope it helps.
7a/9bc divided by 21a/12b
Answer:
Step-by-step explanation:
I dont know if you meant to punch in a c into the equation but if you didnt mean to i have both answers
The one that contains a c in the fraction that you asked for!Evaluate each of the following values for the f(×)=[×]:
what percent is eqilivent to 3/10
I need help with whole thing teacher is putting pressure on me and I have a 10 in her class
Answer:
So... for problem 15. im gonna help you and maybe you'll understand how to do it:) So the X axis is the horizontal line and the Y axis is the vertical line.
So when it says X -4
Y 5
Then the point would be at -4 on the horizontal line and 5 positive points on the Y axis (vertical line)
Step-by-step explanation:
I really hope this helps you its hard to describe over type:(
Good luck:))
A 50 feet ladder is placed 35 feet away from a wall. The distance from the ground straight up to the top of the wall is 60 feet. Check whether the ladder reachesthe top of the wall.
Answer:
No
Step-by-step explanation:
The wall straight up is one of the legs of the triangle. That makes the hypotenuse the ladder which is 50 feet. The hypotenuse needs to be the longest side, but the height of the wall is the longest, so the ladder will not reach the top.
The figure shows a walkway around a swimming pool. The width of the walkway is 4 1/2 ft all the way around
What is the area of the walkway
A 605 ft2
B 1,251 ft2
C 2'682 ft2
B 3,675 ft2
LAST QUESTION OF THE DAY HELP ME OUT!!!
Answer:
B. 1,251 ft²
Step-by-step explanation:
The walkway can be divided into 4 rectangles as shown in the attachment below.
Calculate the area of the walkway part by part.
Part 1 and Part 2:
Length = 100 ft + 4½ ft + 4½ ft = 109 ft
Width = 4½ ft
Area of part 1 and 2 = 2(length * width)
= 2(109*4½) = 981 ft²
Part 3 and Part 4:
Length = 30 ft
Width = 4½ ft
Area of part 1 and 2 = 2(length * width)
= 2(30*4½) = 270 ft²
Area of the walkway = 981 + 270 = 1,251 ft²
evaluate 5 + (-11) - (-11)
Answer:5
Step-by-step explanation:
HELP ASAP!! 5x – 4y = 6 in slope intercept form GIVING BRAINLIEST
Answer:
y= 5/4x - 3/2
Hope this helps :)
Decrease 950 by 36%.
Answer:
342
Step-by-step explanation:
950×0.36=342.....
Answer:
608
Step-by-step explanation:
100-36 =64 which means you want the answer to be 64% of the original value.Find 10% of 950 = 95Mulitply by 6.4 because 10 times 6.4 = 6495 * 6.4 =6084 and 3/5 equals what percent
Answer:
460%
Step-by-step explanation:
Whoever answers gets brainlist!
Answer:
B
Step-by-step explanation:
answer is B
The points B, C D and Eall lie on the same line segment, in that order, such that the
ratio of BC:CD: DE is equal to 1:2:2. If BE = 15, find BD.
Answer:
BD = 9
Step-by-step explanation:
Since, the points B, C D and E all lie on the same line segment, in that order, such that the
ratio of BC:CD: DE is equal to 1:2:2. If BE = 15
Let BC = x, CD = 2x, DE = 2x
[tex] \because BC+CD+ DE= BE\\\\
\therefore x + 2x + 2x = 15..(\because BE =15)\\\\
\therefore 5x = 15\\\\
\therefore x = \frac{15}{5}\\\\
\therefore x = 3\\\\
\because BD = BC + CD\\\|
\therefore BD = x + 2x \\\\
\therefore BD = 3x\\\\
\therefore BD = 3\times 3\\\\
\huge \orange {\boxed {\therefore BD = 9}} [/tex]
Please help ASAP please thank you
Answer:
7
Step-by-step explanation:
Given: F3 = 5 k + 515 g F4 = 945k - 713 g ; find F20
9514 1404 393
Answer:
F20 = 15985k -20361g
Step-by-step explanation:
If we assume F3 and F4 are the third and fourth terms of an arithmetic sequence, the common difference is ...
d = F4 -F3 = (945k -713g) -(5k +515g)
d = 940k -1228g
Then the 20th term is ...
F20 = F3 +(20 -3)d = (5k +515g) +17(940k -1228g)
F20 = 15985k -20361g
Multiply the pairs of numbers and match them to their products.
Answer:
-1.2*-7=8.4 -2.5*-2=5 2.5*-2=-5 -1.2*7=-8.4
Step-by-step explanation:
3x * -2y= -100
Solve for y and x.
Answer:
x=50/3y
y=50/3x
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Are these rational or irrational? Please help ASAP!
Answer:
√25 is a rational number
√1 is rational number
√7 is irrational number
Step-by-step explanation:
first one is √25
=√25
=√5² ( 25 is the square of 5)
= 5
another one is √1
= √1
=√1² ( 1 is the square of itself)
= 1
last one is √7..... and it is irrational
Use the graph below for this question: What is the average rate of change from x = 0 to x = 2?
3
−1
2
−2
Answer:
the answer is C. 2
Step-by-step explanation:
Answer:
wajud ko kabalo ani byyy sorry
plz help me show your work
Answer:
Step-by-step explanation:
5p + 1/2 p + 2/3p - 2.75
10/6p - 2.75
Write the next three terms in each sequence. Make sure your
answers are separated by a comma and a space; like 1, 2, 3
25, 26, 27, 28, ...
Answer:
29,30,31
this is basically like counting just add 1
What was Madame de Soto’s motive for intervening?
Answer:
On May 21, 1541, the Spaniards saw for the first time the Mississippi River, the “Father of the Water” south of Memphis, Tennessee. They crossed the river and made their way through Arkansas and Louisiana. Then, early in 1542, de Soto turned back to the Mississippi River
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
What is the reasonable domain for v(x)
Answer:shii im doing the same test rn
Step-by-step explanation:
ctice
Select the correct answer.
The weight of a baby every month since birth is indicated by segments A, B, and C on the graph below.
Weight of Baby
25
20
С
Weight (pounds)
15
B
10
А
5
10
2 4 6 8
Age (months)
Select the segments in the correct order from the least to greatest rate of increase in the weight of the baby
B, C, A
A, B, C
C,
BA
С, А, В
Answer:
C,B,A
Step-by-step explanation:
The segments that would correctly show the sequence of the baby's increase in weight would be as follows:
C). C, B, A
What is a graph?A graph is characterized as a visual display of a particular set of data for a better understanding of the readers.
As per the given data, the baby's gain of weight would range in descending order i.e. C, B, A.
The weight changed or increased as the baby turned older from 2 to 4 to 6 to 8 months old.
Thus, option C is the correct answer.
Learn more about "Graph" here:
brainly.com/question/14375099
A store sells candy at $.50, $1, $1.50, $2, and $3 per kilogram.
You see that the unit price of candies and the amount of candies that $3 buy vary inversely. What is the constant of variation.
(-2, 1) and (2, -3)
Slope intercept form
Answer:
y=-1x-1
Step-by-step explanation:
m=y2-y1/x2-x1
(-3)-1=-4
2-(-2)=4
-4/4=(-1)
y=mx+b
-3=-1(2)+b
-1*2=-2
-2-(-2)=0
(-3)-(-2)=(-1)
b=-1
hope this helps :3
if it did pls mark brainliest