Answer:
Question:
A bag with 2 blue (B), 4 red (R) and 5 green (G) marbles (total 11 marbles).
Two are drawn at random without replacement.
Find probability of getting two marbles of same colour.
Solution:
We can get either 2B, 2R or 2G as successful outcomes.
To get two blue marbles (2B),
probability of the first one being blue = P(B)=2/11
probability of the second blue marble = P(-B)=1/10 (one left out of 10 left)
Probability that both are blue (use multiplication rule)
P(2B)=(2/11)(1/10)=2/110
Similarly, for two red marbles
P(2R)=(4/11)(3/10)=12/110
and for two green marbles
P(2G)=(5/11)(4/10)=20/110
Since all three events 2B, 2R and 2G are mutually exclusive, the probability
that any one can happen is the sum of the individual probabilities, thus
probability of getting two marbles of the same colour (without replacement)
=P(2B)+P(2R)+P(2G)
=2/110 + 12/110 + 20/110
=34/110
= 17/55
Step-by-step explanation:
4/11
hope this helps
solve for b 1.34 =-1.6b+1.5
Answer:
b=75/97
Step-by-step explanation:
a line through (2, 15) and (6, 7)
Answer:
y = -2x + 19
Step-by-step explanation:
Let the equation of the line is y = mx + b
Here, m = slope of the line
b = y - intercept
slope of a line passing through (x₁, y₁) and (x₂, y₂) is given by
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
slope of line passing through (2, 15) and (6, 7) will be
[tex]m=\frac{15-7}{2-6}[/tex]
= (-2)
Equation of the line will be,
y = -2x + b
Since line passes through point (2, 15)
15 = -2 (2) + b
b = 15 + 4
b = 19
Therefore, equation will be,
y = -2x + 19
Is the graph a linear function, no name and function, or relation (non-functioning)?
Answer:
no name and function
Step-by-step explanation:
Expand and simplify the expressions using properties of operations. 8(3x - 7)
Answer:
8x10x
Step-by-step explanation:
Simply each expression completely and you can use the power to power rule to solve this
Answer:
c = 240
Step-by-step explanation:
Using the rule of exponents
[tex](a^m)^{n}[/tex] = [tex]a^{mn}[/tex]
Then
[tex](a^{40}) ^{6}[/tex]
= [tex]a^{40(6)}[/tex] = [tex]a^{240}[/tex]
what strategy can be used to transform a quadratic function in vertex form to standard form
Hello, I Am BrotherEye
Answer:
This Transparent inquisition can be solved Below
Use transformations to graph a quadratic function in vertex form. A quadratic function in standard form, f(x) = ax² + bx + c, can be changed into vertex form by completing the square. The vertex form of a quadratic function is f(x) = a(x – 5)2 + k, where the vertex of the function is (h, k).
Step-by-step explanation:
Vertex form to standard form converter
Write the parabola equation in the vertex form: y = a*(x-h)² + k ;
Expand the expression in the bracket: y = a*(x² - 2*h*x + h²) + k ;
Multiply the terms in the parenthesis by a : y = a*x² - 2*a*h*x + a*h² + k ;
Best Of Luck
~
BrotherEye
What is the classification for this polynomial? 6xyz + xy Click on the correct answer. monomial binomial trinomial
Answer:
Binomial
Step-by-step explanation:
the polynomial has two terms 6xyz and xy
I need the correct answer please to this pic
Will mark you brainliest for the correct answer
Need the answer asap!! Please!!!!!1
Answer:
False because both 2 and 8, and 3 and 5 are alternate interior angles
pj is placing cans on a shelf. she makes a pattern that repeats after 4 cans. if pj repeats the problem, what will the 21th can look like
Answer:
the 3rd in the cycle
Step-by-step explanation:
Answer:
It was wrong bro
Step-by-step explanation:
A pair of sneakers that normally cost $120 have their price reduced by 25%.
What is the sale price of the sneakers?
The sales price of the sneakers is $
Answer:
$90.00
Step-by-step explanation:
120.00 x 25% = 30.00
120.00 - 30.00 = $90.00
The two triangles are similar.
What is the value of x?
Enter your answer in the box.
x =
Answer:
x = 10Step-by-step explanation:
The ratio of corresponding sides of similar figures is same:
3x/20 = (4x + 2)/(20 + 8)3x/20 = (2x + 1) / 143x(14) = (2x + 1)(20)42x = 40x + 202x = 20x = 10Answer: x=10
Step-by-step explanation: correct test results
PLEASE HELP!!!fast!!!!!!
Answer:
The shoes now cost $5.60
Answer:
1.40
Step-by-step explanation:
100% = 3.50
To get to 60%, divide 100 by 1.6, so this is the scale factor.
3.50/1.6=2.1 (this we need to take away from og amount)
3.50-2.10= 1.40
What would y be for month 1, x
Answer:
Um, maybe 21.5?
Step-by-step explanation:
43/2 = 21.5, so maybe
1 = 21.5
What’s the measure of E
Answer: 30 degrees
Step-by-step explanation:
Answer:
the answer is A.30 dgree
In Cyprus City there are 12,000 adults. 7,500 of the adults in the town are registered voters. In a poll to predict who will be the next mayor, a statistician asks 500 registered voters who they plan on voting for mayor. How many people are in the population of registered voters? And how many people are in the sample taken by that statistician?
Answer:
Step-by-step explanation:
12
2) A circle has an area of 12ñ cm^2. Find its circumference. (Round your answer to the
nearest tenth.
Answer:
75.4
Step-by-step explanation:
Our area is divide the area by pi meaning 12 is our radius
to solve for circumference
we use
[tex]2[/tex]×[tex]\pi[/tex]×[tex]radius[/tex]
(2×3.14)×12=
6.28×12=
7.36
someone help!!!
-16x³y+2x³y-x³y
Answer:
- 15x^{3} y
Step-by-step explanation:
[tex] - 15x ^{3} y[/tex]
[tex] - 16x^{3} y \: + 2x ^{3} y \: - x ^{3} y \\ \\ - 16x ^{3} y + x^{3} y \: = \: - 15x^{3} y[/tex]
math, two questions I need help . look at the pic
Answeer
scan it with photo math it works
Step-by-step explanation:
HELP FASTTT WILL MARK BRAINLIST⚠️⚠️
Which mapping diagram represents a function from xy?
Answer:
A
Step-by-step explanation:
For every input there can only be ONE output
What is the value of x below? *
A diagram with line m parallel to line n is shown.
Answer:
Step-by-step explanation:
The sum of those two angles must be 180 degrees.
3x+10+80=180
3x+90=180
3x=90
x=30
(5 + 42) ÷ 3 ● 6
I need the answer and Steps Plz
HELP ME ASAP 100 POINTS If the right triangular prism shown has a volume of 36 cubic centimetres, what is the height of the triangular base of the prism, H? A. 12 cm B. 2 cm C. 6 cm D. 4 cm
Answer:
substitute all given values in this formula v=base ×height
then height= base /volume
Step-by-step explanation:
Find the value of x. x =36 x =6 x = 97−−√ x = 97
Answer: 21
Step-by-step explanation:
Answer:
√97
Step-by-step explanation:
Can someone help (Its a photo) ill give brain list
Answer:
this is the order
-14/5, -11/5, -3/2, -2/3, 6/5, 4/2, 11/5, 16/5
(-7) - 12=
HELP ME PLEASEE
Answer:
-19
Step-by-step explanation:
Step-by-step explanation:
this is the solution
I hope it helps
In a football drill, Ron is standing 30 yards directly east of John, and Bill is standing 40 yards directly north of John. If the football is thrown from Ron to Bill then Bill to John, how many yards did the football travel?
Answer:
70 Yards.
Step-by-step explanation:
From Ron to Bill is 30 and from there to John adds 40 which equals 70
I might have done the math wrong, or got the whole thing wrong. Sorry if so.
Write a linear equation in slope-intercept form with a slope of -5 and passes through the point (-1, -8).
ASAP PLEASE HELP
LOOK AT THE PICTURE
Answer:
Step-by-step explanation:
Sin(x) = opposite / hypotenuse.
opposite = 28 The opposite is not connected to the angle.
hypotenuse= 35
Sin(x) = 28/35 = 4/5
Cos(x) = adjacent / hypotenuse.
The adjacent side is part of the angle
adjacent = 21
hypotenuse = 35
Cos(x) = 21 / 35 = 3/5
Tan(x) = opposite / adjacent
opposite = 28
adjacent = 21
Tan(x) = 28/21
Tan(x) = 4/3
According to the weather channel, the chance of rain on Tuesday, February 23rd is 6%. It's complement is %.
Answer:
It's complement is 94%.
Step-by-step explanation:
Complement of a percentage:
The complement of a percentage is 100% subtracted by this percentage.
In this question:
Percentage of 6% for probability of rain.
So the complement, that is, the probability of not raining, is:
100 - 6 = 94%.
Quick please
-4 + x = 3