Francisco is playing a game with 3 green, 2 yellow, 4 red, and 3 black marbles in a bag. He has calculated the probability of drawing a yellow marble, not replacing it, and then drawing a red marble. Explain the error in his solution.
(StartFraction 2 over 12 EndFraction) (StartFraction 4 over 12 EndFraction) = StartFraction 8 over 144 EndFraction
pls help!
Answer:
mag sagot ka module mo yan
Answer:
The probability is not 4/12 for the red marble, but 4/11
Step-by-step explanation:
Francisco calculated to probability of drawing a yellow marble correctly, but since he isn't replacing it, the amount of marbles in the bag is not 12, but 11. Since there are 4 red marbles, the probability is 4/11
can someone help mee. pleaseee
thank you <333
Answer:
2nd graph in yellow
Step-by-step explanation:
The system of equations needed to solve the given equations is . Thus, the correct graph is the top-right graph. Its plotted below.
How to find the system of equations needed to solve an equation?
An equation usually consists of equality of two mathematical expressions. Let it be
�
=
�
A=B . If we take them to be equal to third variable, then:
�
=
�
=
�
A=B=C type of equation is obtained.
We can then take it as system of two equations as:
�
=
�
�
=
�
A=C
B=C
Solution to this system will give us the solution to the considered equation
What is a solution to a system of equations?
For a solution to be solution to a system, it must satisfy all the equations of that system, and as all points satisfying an equation are in their graphs.
For the given case, we are given that:
2
�
−
1
=
�
+
2
2
x
−1=x+2
Taking these two mathematical expression equal to 'y', we get:
2
�
−
1
=
�
+
2
=
�
2
x
−1=x+2=y
or
�
=
2
�
−
1
�
�
�
�
=
�
+
2
y=2
x
−1
and
y=x+2
Plotting these two functions on the X-Y plane, the common point of these curves is the common value which can satisfy both the equations simultaneously, and thus, being the solution to the considered system of equations.
Thus, the solutions are those two points that are intersections of those two curves.
Skye made a deposit of $625 into an account that earns 4% simple interest for 6 years. How much did Skye earn in interest at the end of 6 years?
Answer:
She will earn 150$
Step-by-step explanation:
4% = 0.04
0.04 x $625 = 25
Now we divide 25 by the number of years, which is 6.
6 x 25 = 150$
Therefore, Skye earns 150$ from interest over the course of 6 years.
Helppppppppppppppppppp
Answer:
y- -4=-2(x- -1)
Step-by-step explanation:
im pretty sure
Could someone tell me if i got these right
Answer:
not completely
Step-by-step explanation:
the card "axis" needs to be moved to the first column, the card with the plain grid on it in the second column needs to be moved to the third column, and the card that says "(7,2)" needs to be moved to the second column
Help please show work too
Answer:
B
Step-by-step explanation:
I am not sure what your teacher wants but I guess you can say the following:
at n = 1, the cost is 4 dollars.
at n = 2, the cost is 8 dollars.
This trend is the same where the cost increases by 4 as n increases by 1. This means the C = 4n. We can check this by plugging values into the equation.
For the first row, C = 4, n = 1, and so the equation satisfies it. For the second row in the table, C = 8, n = 2, and so the equation works again. The other data points also agree using the equation.
true or false The absolute value of a number can be negative. answer and I give you 70 points
Answer:
true
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
-I-7I
Hence, -7
Hope it helps!
Solve – 7 = 12x – 16. Show your work.
Pls help i will give brainly
Answer:
0.75
Step-by-step explanation:
Add sixteen on both sides
9 = 12x
Divide by 12
x = .75
30 points !! Please help, If you wanna do the work then i'll give brainliest but you dont have to. DO NOT!! I REPEAT DO NOTT!! DO ANSWER THE QUESTION IF YOU DONT KNOW THE ANSWER. Thank you in advance :D <3.
Answer:
1. 21.08 - (-45) = 66.08
2. 63.7 + (-26) = 37.7
3. 248.7 + (-34.2) =214.5
4. 39.21 - 42.71 = - 3.5
Answer:
Step-by-step explanation:
Equation is below
1 .21.08-(-45)
21.08+45
66.08
2. (-79)+(-35)
-79-35
-114
3. 63.7+(-26)
37.7
4. 764.59+52.41
817
5. 248.7+(-34.2)
248.7−34.2
214.5
7. 39.21-42.71
39.21+-42.71
-3.5
8. (-263)-178
-263+-178
-441
Hope this helped
Plz help ASAP I’ll give brainliest I’ll be so grateful but don’t copy off website:)
Answer:
You can find X in an equation by doing the opposite operation from both sides. For example, let"s do 5x=25. Since there is multiplication, we can use division to isolate the variable. You would divide both sides by the coifeiccent to get x=5.
Step-by-step explanation:
You spin the spinner, flip a coin, then spin the spinner again. Find the probability of the compound event. Write your answer as a fraction or percent rounded to the nearest tenth.
The probability of spinning an odd number, not flipping heads, then not spinning a 6 is
__
Using it's concept, it is found that the probability of spinning an odd number, not flipping heads, then not spinning a 6 is:
[tex]p = \frac{20}{81} = 24.69\%[/tex]
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
In this problem:
There are 5 odd numbers in the spinner, out of 9, hence the probability of spinner an odd number is 5/9.The coin is fair, hence the probability of flipping tails = not heads is of 1/2.Out of the 9 numbers in the spinner, only one is six, hence the probability of not spinning a 6 is of 8/9.Then, the probability of the compound event is:
[tex]p = \frac{5}{9} \times \frac{1}{2} \times \frac{8}{9} = \frac{20}{81} = 24.69\%[/tex]
More can be learned about probabilities at https://brainly.com/question/14398287
#SPJ1
Help Please!! NO LINKS AND NEED EXPLANATION!
Answer:
Function 1: None of the Above
Function 2: Quadratic
Function 3: Linear
Step-by-step explanation:
Function 1: It isn't linear because the y-axis doesn't go up or down at a constant rate, it isn't quadratic because it doesn't have a vertex, and it isn't exponential because it doesn't continue going up.
Function 2: It has a vertex-(6,32)
Function 3: The y-axis goes up at a constant rate of 6.
(Oya-hopes this helps.....)
Complete the statements to find the measurements of ∠a and ∠b .
Find the measurement of ∠a.
m∠a +
°=180°
m∠a =
°
Find the measurement of ∠b.
m∠b +
° +
° =180°
m∠b =
°
Answer:
Step-by-step explanation:
We know that a straight angle is equal to 180°. Therefore, 120°+(a)=180°
We can solve for (a) by subtracting 120 from 180, which is 60.
180-120=60
m∠a+120°=180°
m∠a=60°
We know that the sum of all angles in a triangle is 180°.
Therefore, (a)+60°+(b)=180°
We know that (a) is equal to 60°, so our new equation is:
60°+60°+b=180°
60+60=120
180-120=60
m∠b+60°+60°=180°
m∠b=60°
No link just right answer
Answer:
1/8 in^3 (cubed)
Step-by-step explanation:
multiply each side(it's a bit easier when you make it a decimal first then switch it back to fraction form) and cube the answer.
Hope this helps
The coordinates of the following points represent the vertices of a
rectangle. W: (3,3) X: (8,3) Y: (8,7) Z: (3,7) What is the perimeter, in units, of
rectangle WXYZ? *
3
9
18
20
36
To the nearest hundredth, what is the surface area that will be painted?
Answer:
6.5in
Step-by-step explanation:
find the area of the shaded regions
fine the surface area of the square
A = 2×2
A = 4
find the area of the triangle
A = 1/2bh
A = 1/2×2×2.5
A = 2.5
add the areas
2.5+4 = 6.5
plz help me with these 2 problems
1. Mrs. Wing will tape up posters made by her students on the wall. She cuts tape into ¼ foot pieces. How many ¼ foot pieces can she cut from 5 feet of tape? Show your work.
2. Taylor is helping decorate tables with flowers for a graduation celebration. She has 7 bunches of tulips. She will put ½ of each bunch in a vase. How many vases does she need? Write a division equation to represent and solve the problem. You may want to draw a model in your math book on page 486 to help you find your answer.
ill mark brainliest is u help
Elliot put 7 cups of tea into the pitcher shown. How many more cups of tea does he need to fill the pitcher?
(1 quart = 4 cups)
I learned how to find the area of a triangle with 2 numbers (0.5*b*h), but how do you find the area with 4 numbers?
Answer:
area =12
Step-by-step explanation: you don't need to use all 4 numbers just used the base which is 8 then times it with 3 which gives you 24 then divided it by 2 which gives you 12.
Answer:
Area=12
Step-by-step explanation:
You take the height which is 3 and multiply it by the base which is 8. Then you get 24 and divide it by 2 which gives you 12.
*The 5s don't matter*
a skydiver jumps out from the plane at 10,000 feet above the ground. the skydiver decends at a rate of 175 feet per seconds. how high in the air is the skydiver when he opens his parachute after 25 seconds?
Answer:
5625 feet
I hope it's helps you
Answer:
5625 feets
Step-by-step explanation:
Rate(feet/seconds) = height(feets)/time(seconds)
175 = x/25
x = 4375
After the skydiver opens his parachute the height reduces
Initial height – reduced height
10000 – 4375
= 5625 feets
How is an article using the hourglass technique organized? A. Lead, turn, narrative B. Lead, narrative, conclusion C. Headline, turn, conclusion D. Headline, turn, narrative journalism
Answer:
D
Step-by-step explanation:
on edge 2021
The diagram shows three squares that are joined at the vertices to form a right triangle.
Which of the following statement(s) are true?
I. The sum of the areas of square N and Square L is equal to the area of Square K.
II. The sum of the areas of Square N and Square L is greater than the area of Square K.
III. The sum of the areas of Square N and Square K is greater than the area of Square L.
IV. The sum of the areas of Square N and Square K is less than the area of Square L.
Answer:
the first statement ( I )
Step-by-step explanation:
pleas help i dont understand
Answer:
C. (the yellow one) and A. (the dark blue one)
Step-by-step explanation:
Half of 14 is 7. Half of 100 is 50. They are both equivalent because they are both 1 half.
Determine whether a linear, quadratic, or exponential function is the best model for the data in the table.
Answer:
exponential function and common ratios
Step-by-step explanation:
Describe the data in the table
Answer:
the higher the magnitude, the the lower the frequency.
HELP PLEASEEEEE( NO LINKS ) please don´t give me a incorrect or absurd answer ive asked many times i just want help, if your not willing to help.. leaveeee!
Answer: A is yes. B is no, C is yes
Step-by-step explanation: The reason A is yes, is because the terms are 27b, 12b and 4 because they are separated. The reason B is no, is because the like terms are 27b and 12b because their variables are alike. The reason C is yes, is because 27b+12b=39b+4 is an équation simplified.
solve 2x+x-3 will mark brainliest
Answer:
3x−3
Step-by-step explanation:
2x+x−3
=2x+x+−3
Combine Like Terms:
=2x+x+−3
=(2x+x)+(−3)
=3x+−3
Plsss help me with this if you know how to solve this plsss help me with it thank you also remember NO LINKS AND NO DOING IT JUST FOR POINTS OR YOUR ANSWER WILL BE REPORTED i figured out angle 8 since its in the second question so all i need is the rest of them so plss help me
which of the following values satisfy the inequality shown? you must select all that apply -4≤20
A. 1
B. -1
C.-3
D.-5
E.-7
F. -9
I'm stumped. Honestly. Please help
Answer:
1: Tip, $2.23
2: Tax, $0.74
3: Total, $17.87
4: Split, $5.95
Step-by-step explanation:
To find the tip, you must multiply the tip percentage by the bill, (which has not been taxed yet). The tip is 15%, which is equivalent to 0.15. The tip multiplied by the bill (0.15×14.90) equals $2.23.
To find the tax, you do the same as you did with the tip. The tax is 5%, which equals 0.05. The tax multiplied by the bill, (0.05×14.90) equals $0.74. The total cost is the bill, tip, and tax added together, (14.90+2.23+0.74) equals $17.87. To find out how much each person will pay equally, you must divide the total bill by the amount of people, (17.87÷3) which equals $5.95.