Answer:
Step-by-step explanation:
times .62
An urn contains b black balls and r red balls. One of the balls is drawn at random, but when it is put back in the urn c additional balls of the same color are put in with it. Now suppose that we draw another ball.
Required:
Show that the probability that the first ball drawn was black given that the second ball drawn was red is b/(b r c).
Answer:
Please see the explanation below for proof
Step-by-step explanation:
Probability of choosing black ball from the bag
[tex]\frac{b}{b+r}[/tex]
Probability of choosing red ball from the bag
[tex]\frac{r}{b+r}[/tex]
After the addition of c balls of correspondent color –
P (R2/B1) [tex]= \frac{r}{(r+b+c)}[/tex]
P (R2/B2) [tex]=\frac{r+c}{(r+b+c)}[/tex]
B1 and B2 are mutually exclusive event
P (B1/R2) = [tex]\frac{\frac{r}{(r+b+c)} *\frac{b}{b+r}}{\frac{r}{(r+b+c)}*\frac{b}{b+r} + \frac{r+c}{(r+b+c)}* \frac{b}{b+r}}[/tex]
P (B1/R2) [tex]=\frac{b}{(r+b+c)}[/tex]
Hence, Proved
Angle A and B are supplementary. If m∠A = 143°, find m∠B.
1.Write an equation in point slope form given a point (-5,2) and slope 3/5
Question 2
Write an equation in slope intercept form given a slope -5 and y intercept as (0,-4)
Answer:
1. y - 2 = (3/5) (x + 5)
2. y = -5x - 4
Step-by-step explanation:
Slope form - y1 - y = m (x1 - x)
Slope intercept - y = mx + b
álgebra II. Help please...
Answer:
See below
Step-by-step explanation:
The domain of [tex]f[/tex] is non-negative real numbers, and the domain of [tex]g[/tex] is real numbers.
[tex](f\circ g)(x) = 2\sqrt{2}|x|^5[/tex] (I skipped calculation details), so [tex](f\circ g)(9) = 2 \sqrt{2} \cdot 9^5[/tex].
HELP ASAP !! During one team's session, the ratio of the number of games the team won to the number of games the team played was 4 to 12. The team played 42 games. How many games did the team win? A) 17 Games. B) 11 Games. C) 10 Games or D) 14 games.
Answer:
In a certain sport, teams receive 3 points for each win, 1 point for each draw, and no points for losses. In a five-team tournament in this sport, in which each of teams G, H, J, K, and L played each other team exactly once, did team L finish the tournament with the highest point total?
Step-by-step explanation:
John owns a hot dog stand. His profit, in dollars, is given by the equation P(x) = -x + 10x + 34, where x is the number of hot dogs sold. What is the most he can earn?
O A. $39
OB. $59
O C. $99
O D. $25
The measure of an angle is 39.3°. What is the measure of its complementary angle
i’m not sure but i think it’s 51 degrees
The sum of two consecutive integers is at least 14.
What is the least possible pair of integers?
A. 6 and 7
B. 4 and 5
C. 8 and 9
D. 7 and 8
Answer:
its 7 and 8
Step-by-step explanation:
Tickets for Broadway show cost $50 for adults and $10 for children. The total receipts for 1510 tickets at one performance for $54,700 how many adults and how many children’s tickets were sold.
Answer:
a lot of kids and adults
Step-by-step explanation:
Which expresses a ratio in fraction form?
4:7
4 to 7
4/7
714
Answer:
I think it is 4/7 I might be wrong
Find the value of x.
(will give brainliest to correct answer)
30°
15x
A. 4
B. 2
C. 12
D. 10
Answer:
It might be D but im srry if wrong
Step-by-step explanation:
Which expression can be used to solve the problem below? What is 1/4 of the product of 12 and 3?
Answer:
12/4=3and3/4is 1/4 of the product of 12
and 3.
Find the average rate of speed, expressed in miles per hour (unit rate). A post office truck delivered mail on a 9-mile route in 2 hours.
please help ! D:
Answer:
4.5 miles per hour
Step-by-step explanation:
Find the x intercept and the y intercept of the line below.
Answer:
x=-2 y=4
the line hits both -2 on the x asis and 4 on the y
A $65 drone is on sale for $51.35. What is the percent of discount?
Answer:
20% off
Step-by-step explanation:
Answer:
21%
Step-by-step explanation:
To calculate the percentage discount between two prices, follow these steps:
Subtract the post-discount price from the pre-discount price.
Divide this new number by the pre-discount price.
Multiply the resultant number by 100.
$51.35-65=13.65
13.65/65= -0.21
-0.21*100=-21
Of the 950 students enrolled in a soccer league, 42% are in middle school. How many students in the soccer league are in middle school?
68
399
509
908
A store sells graph paper in packages of 100 sheets. During a sale, they offer a package that has 25% more sheets for no additional cost. How many sheets are in the sale package?
Answer: 125
Step-by-step explanation:
25% of 100 = 25
25 + 100
125
what is the solution to the equation x - 3.9 = 12.4
Answer:
16.8
Step-by-step explanation:
equation: x - 3.9 = 12.9
add 3.9 to 12.9
answer is 16.8
Guys can u help me please
Answer:
the first one is 5 times 5 times 5
the second is 7 times 7
the third is 2 times 2 times 2
Step-by-step explanation:
5x5x57x72x2x2which one is a Metaphor
1. A phrase where the words have no connection to their meaning. carries no meaning outside of context or prior experience with the phrase and cannot be translated.
2. Extreme exaggeration
3. words that have the same beginning sound together
4. A reference or mention of a person, event, statement, piece of art, history, myths, religion, or popular culture
5. A direct comparison that does not use like or as. Instead, it says something IS something else.
6. Giving human characteristics to non-human things.
Answer:
5. A metaphor is a direct comparison that does NOT use the words like or as. It says that something is something else.
For example:
Her eyes are the ocean and you can get lost in their waves.
His speed is that of a cheetah.
She is the calm wind on a late Sunday evening.
He is the brain of a computer while he designs the new car.
WILL MARK BRAINLYIST
Answer:
a= 158
b=22
Step-by-step explanation:
First we have to find b in order to find a.
To find b we need to add up the two angles we know the value of and subtract it from 180.
90+68= 158
180-158=22
We know b is 22 because the sum of all angles in a triangle is always 180.
Now that we have b we can find a.
we know that a+b=180 so all we have to do is subtract 22 from 180 to get 158.
Answer:
b is 22° and a is 158°
Step-by-step explanation:
b can be calculated by angle sum property and a can be calculated using exterior angle sun property
sin( x+ π/4) + sin( x− π/4 ) = 1
Expand using the Sum Difference formula
Choose the correct set of possible solutions for X in the interval [0, 2\pi ]
https://socratic.org/questions/how-do-you-solve-sin-x-pi-4-sin-x-pi-4-1-over-the-interval-0-2pi
Evaluate the expression 2y + 3.5. Evaluate the expression for y=1.8, y=4, y=6.9. (there should be three answers)
Answer:
1. 7.1
2. 11.5
3. 24.2
Step-by-step explanation:
you use P.E.M.D.A.S. for all the equations.
so you do thr multiplication and then the addition
1. 2(1.8)+3.5= 3.6+3.5= 7.1
2. 2(4)+3.5= 8+3.5=11.5
3.2(6.9)+3.5= 13.8+3.5= 24.2
hope this helps
Please help me with this 30 points
Answer:
D
Step-by-step explanation:
For every 1 unit, it goes vertically 1/2
Classify the angle.
What type is it.
(2x −6) +4 (x −3)
find the sum
Answer:
6 x (x - 3)
Step-by-step explanation:
Answer:
6x - 18
Step-by-step explanation:
Distribute the 4
2x - 6 + 4x -12
Combine like terms
2x + 4x = 6x
-6 - 12 = -18
solve the equation
-2x +8 = -10
x/-5 + -15 = -22
Pls answer allllll! I really need it
Answer:
7) I believe it is "The sum of the large rectangle is equal to the sum of the two smaller rectangles. 3 (x + 4)" But I am not sure.
8) Make it shorter and simpler by combining like terms
9) 5x , 2a + 3 + a + 4 , 6 + 2x + x2 + 1 + x
10) ac + bc = (a + b) c
Step-by-step explanation:
PLEASE HELP!!
What is the volume?
8 t
7 ft
21
cubic feet
Answer:
The answer is 8ft
Step-by-step explanation:
hope that helps :)))
Answer:
112ft²
Step-by-step explanation:
volume= length×breadth×height
[tex]v = 8 \times 2 \times 7 = 112f {t}^{2} [/tex]
Angle 1 is 135
Angle 2 is ?
Angle 3 is 135
Angle 3 is an exterior angle. What is the missing angle
A. 45
B. 80
C. 90
D. 180
Answer:
80
Step-by-step explanation:
di ko po alam kung tama ba
(sana po makatulong po)