Answer:
3/5
=3*4/5*4
=12/20
I hope this will help.
Answer:12/20
Step-by-step explanation:
Sue has 20 biscuits in a tin there are : 12 plain 5 chocolate 3 currant sue takes out two biscuits out the tin what is the probability that the two biscuits are not the same
Answer:
P(2 different) ≈ 58.42%
Step-by-step explanation:
To find the probability that the 2 selected are different, we have to first find the probability that the 2 selected are the same.
probability that they are the same;
P(2 plain biscuits) = (12/20) × (11/19) = 132/380
P(2 chocolates) = (5/20) × (4/19) = 20/380
P(2 currant chocolates) = (3/20) × (2/19) = 6/380
Thus, generally;
P(2 same biscuits of either 3 types) = (132/380) + (20/380) + (6/380)
P(same) = 158/380
P(same) = 79/190
Thus, the probability that they are different will be;
P(2 different) = 1 - P(two same)
Thus;
P(2 different) = 1 − (79/190)
P(2 different) = 111/190
P(2 different) ≈ 58.42%
Answer:
0.5842
this is what I got and it was right
Grant is a member of a book club. He pays a $10 yearly membership fee and can purchase books through the club for $2.75 each. His total annual cost is a function of the number of books that he purchases in a year. Let b represent the number of books he purchases in a year. Which function, C(b), represents his yearly cost
1) solve the following system of Equations by graphing. Label the solution and all intercepts.
Please show me how u did it and graphed it ;-;
Answer:
Um. There is no equation?
Step-by-step explanation:
Which of the following expressions can be used to find x? Solve for x. Round to the nearest hundredth. A tan 28 = x32 ; x=17.01∘ B sin 28 = x32 ; x=15.02∘ C tan 28 = 32x ; x=60.18∘ D tan x= 2832; x=41.19∘
Answer:
B
Step-by-step explanation:
plzzz helppp will mark brainlest stpps plzz if possible
Answer:
c.
Step-by-step explanation:
Law of sines
[tex]\frac{Sin A}{a}[/tex] = [tex]\frac{Sin B}{b}[/tex]
A and B are angles.
a and b are sides opposite corresponding angles.
Johnny can build 3 1/2 lego planes in 60 minutes. How many can he build in 40 minutes? Simplify answer completely
Answer:
2 [tex]\frac{1}{3}[/tex] planes
Step-by-step explanation:
Set up a ratio.
planes over time.
Because the time is given in minutes. No conversion necessary.
[tex]\frac{planes}{time}[/tex] = [tex]\frac{3.5}{60}[/tex] = [tex]\frac{x}{40}[/tex]
Cross Multiply
60 (x) = 3.5 (40)
60x = 140 Divide by 60, both sides.
x = 2.333 repeating also know as 2 [tex]\frac{1}{3}[/tex].
Which system is equivalent to y=-2x^2 y=x-2
a) y=-2y^2 x=y-2
b) y=-2y^2+2 x=y+2
c) y=-2y^2-8y-8 x=y+2
d) y=-2y^2+8y-8 x=y-2
Answer:
answer C
Step-by-step explanation:
[tex]\left\{\begin{array}{ccc}y&=&-2x^2\\y&=&x-2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}x&=&y-2\\y&=&-2(y-2)^2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}x&=&y-2\\y&=&-2y^2-8y-8\\\end{array}\right.\\\\[/tex]
At a homecoming pep rally, one student will win free tickets to the homecoming dance. There are 2,400 students attending the pep rally. The student council wants to pull the winning student’s name from a container with the school’s mascot on it. Unfortunately, the container only holds 600 names.
Which method can the student council use to ensure each student has a fair chance of winning?
A.
Randomly assign the 2,400 students to four equal groups. Select a group at random and put all the names from that group in the container. Randomly select the winner from the container.
B.
Put the names of the first 600 students who arrive at the pep rally in the bag. Randomly select the winner from the container.
C.
Select a section of the bleachers and only put the names of students sitting in that section in the container. Randomly select the winner from the container.
D.
Select a grade and only put the names of students from that grade in the container. Randomly select the winner from the container.
Answer:
A
Step-by-step explanation:
Answer A. Logically speaking there is no fair chance unless they use all the names but we can rule out C by the higher chance of students crowding, B is less likely as selecting winners from students who arrive first would be nearly the same as who bought their tickets first. D, selecting a grade excludes (estimating) around 1500 students or more from being included. A is the only logical answer left and by dividing them randomly you give everyone a full chance.
A cone has a volume of 150 cm cubed and a base with an area of 12 cm square. What is the height of the cone?
(I'm asking this again :') No one answered it.)
P.S Its 30 Points now
SO PLEASE HELPPP tyyyy :)
Answer:
37.5cm
Step-by-step explanation:
V=1/3Bh
150=1/3 12h
150=4h
37.5=h
Factor x4 – 81. Question 20 options: A) (x2 + 3)(x2 – 3) B) (x2 – 9)(x + 3)(x – 3) C) (x2 + 9)(x + 3)(x – 3) D) (x + 3)2(x – 3)2
Answer:
C is correct
Step-by-step explanation:
A square minus a square can always be factored into the square root of the 1st term plus and minus the square root of the 2nd term. So
x**4 - 81 = (x**2 + 9)(x**2 -9) = (x**2 + 9) (x + 3)(x - 3)
help help help it is simple one
Answer:
[tex] 3^{ -x+3}[/tex]
Step-by-step explanation:
We need to simplify out the given exponential expression . The given expression to us is ,
[tex]\rm\implies \dfrac{\dfrac{1}{3}}{3^{x-4}} [/tex]
We can use the Law of Exponents to simplify the given expression . Recall that ,
[tex]\rm\implies \red{\dfrac{a^m}{a^n}= a^{m-n}}[/tex]
Note that , we can write ,
[tex]\rm\implies \dfrac{1}{3}= 3^{-1}[/tex]
Therefore our expression becomes ,
[tex]\rm\implies \dfrac{ 3^{-1}}{3^{x-4}}[/tex]
Simpify using the Law of Exponents ,
[tex]\rm\implies 3^{ -1 - ( x - 4 )}[/tex]
Open the brackets in exponent ,
[tex]\rm\implies 3^{ -1 - x +4 }[/tex]
Simplify to get final expression ,
[tex]\rm\implies \boxed{\quad \blue{ 3^{-x+3} \quad}}[/tex]
HELP! (25 points) i think i might know the answer
Answer:
[tex]\sqrt{7}[/tex]
Step-by-step explanation:
Help me pls‼️‼️‼️❤️❤️
Answer:
= 50%
Step-by-step explanation:
There is one point, random number = 1
There are two circles, sample space = 2
[tex]{ \tt{probability = \frac{1}{2} }} \\ { \tt{percentage = \frac{1}{2} \times 100\% }} \\ = 50\%[/tex]
Answer:
25%
Step-by-step explanation:
1. Find the area of both Circles: [tex]A = \pi r^{2}[/tex] [tex]A = \pi 2^{2}[/tex] = [tex]4\pi[/tex] [tex]A = \pi 1^{2} = \pi[/tex]
2. [tex]\frac{\pi }{4\pi }[/tex] to find the percentage
3. 0.25 = 25%
Lusia tiene $500, decide gastar el 15% de esta cantidad en la compra de un postre para despues de la comida
¿ A cuánto asciende la cantidad en pesos que dispone lusia para comprar el postre
Answer:
Gasto en postre= $75
Step-by-step explanation:
Dada la siguiente información:
Lusia tiene $500, decide gastar el 15% de esta cantidad en la compra de un postre para despues de la comida.
Para calcular la cantidad a gastar en el postre, debemos usar la siguiente formula:
Gasto en postre= presupuesto total*porcentaje para postre
Gasto en postre= 500*0.15
Gasto en postre= $75
Write the y-intercept of the line
Answer: -2. Bc if you look on the graph of the y axis you'll see its located at -2.
Hope this helps :)
Step-by-step explanation:
20-(+20)-(-65)-(-12)
Answer:
77
Step-by-step explanation:
20-(+20)-(-65)-(-12)
-(-65)-(-12)
+65-(-12)
+65+12
77
Q) 20-(+20)-(-65)-(-12) = ?
→ 20-(+20)-(-65)-(-12)
→ 20 - 20 + 65 + 12
→ {20 - 20} + {65 + 12}
→ 0 + 77
→ 77 is required solution.
Please help out will give brainliest to the first person
Answer:
b = 74
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angles in a triangle
b-44 + b+18 = b+48
2b-26 = b+48
Subtract b from each side
2b-b-26 =b+48-b
b-26 = 48
Add 26 to each side
b-26+26 = 48+26
b =74
Kristen and Stephen share some money on the ratio 3:2 Kristen receives $72. How much will Stephen receive
Answer:
$48
Step-by-step explanation:
A ratio of 3:2 could be $3 and $2, or any multiple of 3 and 2 such as $6 and $4. Kristen corresponds to $3 and receives $72.
$72/$3 = x/$2
3x = 2 * $72
3x = $144
x = $48
Answer: $48
Answer:
$48
Step-by-step explanation:
Since we are given the ratio 3:2 we can use that with the given number to find our missing amount
first, we divide 72 by 3 to find what 1/3 will be 72/3 = 24
Then, we multiply by 2 to find our missing amount 24 * 2 = 48
The melting point of mercury is about 1/4 of the melting point of krypton. The melting point of mercury is -39c. Write and solve an equation to find the melting point of krypton.
Answer:
-156c
Step-by-step explanation:
[tex]\frac{1}{4}[/tex] of krypton melting point is mercury melting point
[tex]\frac{1}{4}[/tex](k) = -39
k = -39(4)
k = -156c
The graph of a logarithmic function IS shown below.
What is the domain of the function?
A.x<0
B.x>0
C.x<1
D. All real numbers
Answer:
Step-by-step explanation:
The domain includes all the "allowed" x values. Looking at the graph, it appears to start a tiny tiny bit to the right of 0, so it doesn't include 0. It also does not go to the left of 0. Therefore, the domain of the graph is x > 0
If A= { 2, 4, 6, 8, 12 } and B={ 2, 4, 8 }, then find the set notation to represent { 6, 12 }.
Answer:
A{6,12}
Step-by-step explanation:
Maybe I'm not sure about that.
Someone plz help me and show the work 10 points!
Answer:
78°
Step-by-step explanation:
you have to add it up and then divide after multiply
Add. State the sum in simplest form.
6/5x + 7/3y
Answer:
6x/5 + 7y/3
Step-by-step explanation:
Answer:
3.53xy
Step-by-step explanation:
I’m probably wrong but give it a try I think
2) How much tax should be paid by a person having annual income RS 240.000?
Answer:
What is the Existing / Old tax regime?
Income Range Tax rate Tax to be paid
Up to Rs.2,50,000 0 No tax
Between Rs 2.5 lakhs and Rs 5 lakhs 5% 5% of your taxable income
Between Rs 5 lakhs and Rs 10 lakhs 20% Rs 12,500+ 20% of income above Rs 5 lakhs
Above 10 lakhs 30% Rs 1,12,500+ 30% of income above Rs 10 lakhs
Which graphs show functions with direct variation? select three options.
Answer:
the daily graphs
Step-by-step explanation:
the news paper
Answer:
B C E
Step-by-step explanation:
Does the function ƒ(x) = 5e0.25x represent exponential growth, decay, or neither?
Step-by-step explanation:
it is exponential growth because the coefficient of x is not negative
the evidence is in the image above
the gradient increases
Given JIH~ LMN. what is the value of LN?
Answer:
7 units
Step-by-step explanation:
In similar triangles, corresponding sides are same ratio.
[tex]\frac{LN}{JH}=\frac{LM}{JI}\\\\\frac{LN}{14}=\frac{5}{10}\\\\LN=\frac{5}{10}*14\\\\LN=7[/tex]
9 Alicia has a bag that contains 12 apples.
Estimate the mass of the bag of apples.
Give your answer in kilograms.
Answer:
The key here is estimate, you don't need exact values or more information for this problem. First estimate the mass of an average apple. A quick online search reveals that the mass of an average apple is approximately 100 grams. Multiply by 12 for the bag and convert to whatever units you're asked to express your answer in.
Step-by-step explanation:
DIVISON METHOD OF 527,646,1105
Answer:
17 is the answer
Step-by-step explanation:
Y= 3x+6; (4,7) in slop intercept form
What we are given:
*equation
* intercepts (4,7)
All we have to do is plug in what we know:
Y= 3x + 6
x=4 and y= 7
NEW EQUATION:
7= 3(4) + 6
7= 12+6
7= 18
then divide 18 by 7
18/7= 2.5
