Answer:
5% of 40 is 2, 50% of fourth is twenty and so on.
Step-by-step explanation:
To get my ander which ios two i multiplied 5% x 40, the answer is 2.
Two black chips and three red chips are put into a bag. Two points are awarded for each black chip drawn, and one point is lost for each red chip drawn. What is the expected value for each round if there are two draws per round and the chips are replaced after each draw? –0. 08 –0. 04 0. 2 0. 4.
The expected value for each round, if there are two draws per round and the chips, are replaced after each draw is 0.4.
Given to us
Number of black chips = 2
Number of red chips = 3
Points are given for a black chip = +2
Points are given for a red chip = -1
What are the probabilities of the different cases?We know that for each round there will be 2 draws, therefore, there will be four cases,
Case1:
Probability, when both the chips drawn are black,
[tex]\dfrac{2}{5} \times \dfrac{2}{5} = \dfrac{4}{25}[/tex]
Case2:
Probability, when the first chip is black and the next chip is red,
[tex]\dfrac{2}{5}\times \dfrac{3}{5}=\dfrac{6}{25}[/tex]
Case 3:
Probability, when the first chip is red and the next chip is black,
[tex]\dfrac{3}{5}\times \dfrac{2}{5}=\dfrac{6}{25}[/tex]
Case 4,
Probability, when both the chips drawn are red,
[tex]\dfrac{3}{5}\times \dfrac{3}{5}=\dfrac{9}{25}[/tex]
What is the expected value for each round?The expected value of each round can be found,
[tex]E(x) = (2+2)\dfrac{4}{25} + (2-1)\dfrac{6}{25} +(-1+2)\dfrac{6}{25} +(-1-1)\dfrac{9}{25}[/tex]
E(x) = 0.4
Hence, the expected value for each round, if there are two draws per round and the chips, are replaced after each draw is 0.4.
Learn more about Expected Value:
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[tex]6(x-1)-x=-21[/tex]
[tex]\tt Thanks! :)[/tex]
Step-by-step explanation:
Given that:
6(x - 1) - x = -21
Multiply the number outside of the brackets with numbers in the brackets on LHS.
⇛6x - 6 - x = -21
Shift constant from LHS to RHS, changing it's sign.
⇛6x - x = -21 + 6
Subtract the values on LHS and RHS.
⇛5x = -15
Shift the number 5 from LHS to RHS.
⇛x = -15/5
Therefore x = -3
Please let me know if you have any other questions.
13. Identify the terms, like terms, coefficients, and constants in the
expression. 2x + 3y + x + 7
Answer:
On the attachment.
Step-by-step explanation:
On the attached image.
Which of the following expressions are equivalent to -4+ (4+5)?
Choose 3 answers:
A (-4+4) +5
B (-4 – 4) +5
C - (4 — 4) + 5
D - (4) + (-4) + 5
E - 4+4+5
Un repartidor de comida va a entregar dos pizzas en el mismo viaje. La primera pizza se encuentra a 40 km al norte de la tienda, mientras que la segunda se localiza a 100 km al sur de la tienda. El repartidor bate su récord personal al llegar de la primera a la segunda casa en 10 s. ¿Qué velocidad lleva el repartidor?
Veremos que que la velocidad es de 14 km/s hacia el sur.
¿Como calcular la velocidad?
La velocidad se calcula como el cociente entre la distancia recorrida y el tiempo que se tarda en recorrer dicha distancia.
En este caso, la distancia de las casas es de 140km (pues una casa esta 40km al norte y la otra 100km al sur de la tienda).
Y el tiempo en el que el repartidor recorre esta distancia es 10 s.
Así la velocidad será:
V = 140km/10s = 14km/s
Lo que es muy rapido.
Tambien cuando hablamos de velocidad hay que aclarar la dirección, la cual es sur en este caso.
Concluimos que la velocidad es de 14 km/s hacia el sur.
Sí quieres aprender más sobre velocidad, puedes leer:
https://brainly.com/question/22965204
20=v+9-16
20=v+9+ ( )
20=v-
=v
Answer:
v = 27
Step-by-step explanation:
20 = v + 9 - 16
20 = v + (9 - 16)
20 = v - 7
v = 27
An amount of $48,000 is borrowed for 15 years at 7.75% interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back? Use the calculator provided and round your answer to the nearest dollar.
[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$48000\\ r=rate\to 7.75\%\to \frac{7.75}{100}\dotfill &0.0775\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &15 \end{cases} \\\\\\ A=48000\left(1+\frac{0.0775}{1}\right)^{1\cdot 15}\implies A\approx 147062[/tex]
What is the classification for this angle?
acute
obtuse
right
I don't know.
Answer:
The angle being shown is an acute angle
Step-by-step explanation:
Answer
obtuse
Step-by-step explanation:
i did the test.
HELP
subtract -4/5 - 2/3
A -22/15
B -3/4
C -2/5
D 8/15
Answer:
A
Step-by-step explanation:
-4/5×3/3=-12/15
2/3×5/5=10/15
-12/15-10/15= -22/15
Please help me with this equation... can you also please show your work? thank you.
Answer:
41
Step-by-step explanation:
7 × 9 - 34 + 24 ÷ 2
63 - 34 + 12
41
Ye Li drew a quadrilateral that is both a rectangle and a rhombus. Name the quadrilateral and describe it using the properties of sides and angles.
A rhombus is both a rectangle and a rhombus. All the sides are equal and each angle measure 90 degrees.
QuadrilateralA quadrilateral is a polygon with four sides and and four angles. A rectangle has opposite sides parallel and equal. The angles of a rectangle all measure 90 degrees.
A rhombus has opposite sides parallel and equal. All sides of a rhombus are equal and opposite angles are equal.
A rhombus is both a rectangle and a rhombus. All the sides are equal and each angle measure 90 degrees.
Find out more on Quadrilateral at: https://brainly.com/question/23935806
base of triangle is 8cm and height is 6cm . it's area is what
Answer:
48cm^2
Step-by-step explanation:
base × height=8cm×6cm=48cm^2
Answer:
Area=24cm²
Step-by-step explanation:
[tex]Solution,\\\\Base(b)=8cm\\\\Height(h)=6cm\\\\Area=\frac{1}{2}* b*h\\\\Area=\frac{1}{2} *8cm*6cm=24cm^{2} .[/tex]
3x - 3 = 15
Find The Value Of x ~
[tex] \: \: \: [/tex]
Answer:
x = 6
Explanation:
3x - 3 = 15
3x = 15 + 3
3x = 18
x = 18 ÷ 3
x = 6
The value of x from the expression is 6
Expression and equationGiven the equation
3x - 3 = 15
Add 3 to both sides
3x - 3 + 3 = 15 + 3
3x = 18
Simplify the result
3x = 18
Divide both sides by 3
3x/3 = 18/3
x = 6
Hence the value of x from the expression is 6
Learn more on equation here: brainly.com/question/2972832
Pls help me with this!!!
Step-by-step explanation:
I'm not sure what you need help with, since what you have written down is correct. However, if you are looking for an explanation, here it is:
x + 5 < -2
To solve for x, we have to get x on one side by itself. Whatever you do to one side, you have to do to the other. Let's get rid of 5 to get x by itself.
x + 5 < -2 (Subtract 5 from both sides)
x < -7
Perfect! Basically what this is saying, is that all the values x can equal have to be less than -7. The sign < means less than.
For the signs < (less than) and > (greater than), we use an open circle.
For the signs ≤ (less than or equal to) and ≥ (greater than or equal to), we use a closed circle.
This is why we use an open circle for this example since x is LESS THAN -7.
The arrow is pointing to the left because these numbers are less than -7.
A changed
8. Mary is making 5 necklaces for her friends, and she needs of a foot of string for each necklace. How many feet of string does she need?
Answer: 5
11/12 jk we can't times it :]
Step by Step explanation: First I'm not giving the answer we are doing step by step i am in the same grade. First so 5 x 11 what is it?.........very good its 55 next we are going to the. Next number 5 x 12 what is it?.......YES it is 60 very good ok moving on now how much times does 55 go into 60?.....yes 1 time how much do we have left?........Yes 5 so what is the answer?
can you please help me
Answer:
AC = 24
Step-by-step explanation:
In a rectangle, the diagonals are the same so AC = BB
3x - 9 = x + 13
3x - x = 13 + 9
2x = 22
x = 11
AC = 3x - 9 = 3(11) - 9 = 33 - 9 = 24
How far will Tyrique’s robot travel after the wheels have made one full revolution?
Answer:
Distance traveled is equal to the length of wheel circumference as it “unrolls” along the ground as the wheel turns. One full turn of the wheel will move the robot one circumference's distance. Therefore, students will find the distance traveled by multiplying circumference by the number of rotations.
What is 70% of 8?
If anyone can help, THANK YOU SOO MUCH
Answer:
5.6
Step-by-step explanation:
is/of = percent/100
'what is' means to assign a variable for 'is'
of = 8
70% = 70/100
n/8 = 70/100
cross-multiply to get:
100n = 560
n = 5.6
complete the pattern 1,4,16,64
Answer:
Multiplying by 4 each time. 64 x 4 = 256
Step-by-step explanation:
Hope this helps. :D
pattern is times 4
256, 1024, 4096
Which expression can be used to convert 100 USD to Japanese yen?
Two competing gyms each offer childcare while parents work out. Gym A charges $9.00 per hour of childcare. Gym B charges $0.75 per 5 minutes of childcare. Which comparison of the childcare costs is accurate?
Gym B charges $1.05 less per hour than Gym A.
Gym B charges $1.50 less per hour than Gym A.
Gym B charges $5.25 less per hour than Gym A.
Gym B and Gym A charge the same hourly rate for childcare.
Answer: B
Step-by-step explanation:
What is the value of f?
Answer: f=78
Step-by-step explanation:
En un cuadrilatero la suma de los angulos internos es 180°
Ademas los angulos alternos internos so iguales.
Por lo tanto el angulo frente a 72° en diagonal tambien es 72°
Si sumamos esos dos angulos obrenemos 144°Si restamos este resultado de 360° obtenemos 360°-144=216 °
Finalmente debemos dividir entre dos los 216°
216/2 = 78°
How can 10% of 82 be used to determine 60% of 82?
Enter your answers in the boxes to correctly complete the statement.
10% of 82 is
, so 60% of 82 is
Answer:10% of 82 is 820so 60% of 82 is 4800
Step-by-step explanation:
i hope im right
Draw the image of the following triangle after a dilation centered at the origin with a scale factor of 2.
1
1
Х
5
V
Check
Sandra is making a large delivery in an apartment building. The maximum weight that the building's elevator can support is 3,200 lbs. If Sandra weighs 145 lb and each box that she is delivering weighs 51 lb, then what is the maximum number of boxes can she ride up with in the elevator?
Answer:
the maximum number of boxes she can bring at one time is 59 boxes
Step-by-step explanation:
59 x 51 = 3009 + 145 = 3154
equation = x = 145 + (51 x 59)
x = the weight of the boxes and Sandra
I WILL GIVE BRIANLIEST FOR BEST ANSWER!!!
Which polygon appears to be regular?
Figure A
Figure B
Figure C
Figure D
Answer:
Figure A
Step-by-step explanation:
A regular polygon is a polygon that has equal sides and angles.
By looking at the choices you can see the Rhombus or square has all equal sides and all angles are the same.
Hope this helps!
Make sure to put this in notes for later <3
Xx
Find the value of x. PLS HELP ASAP
Answer:
3
Step-by-step explanation:
Hope this helps
Pls mark brainliest
Explain how to determine if the two expressions are equivalent using x = 6 and x = 2. 2x 4 – 1 3 x x.
The two expressions are equivalent.
Linear systemIt is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.
Given
2x + 4 - 1 can be represented as 2x + 3
3 + x + x can be represented as 3 + 2x
To findThe two expressions are equivalent.
How do find the two expressions are equivalent?At x = 6
2x + 3 and 3 + 2x
2(6) + 3 and 3 + 2(6)
12 + 3 and 3 + 12
15 and 15
Both are equal.
At x = 2
2x + 3 and 3 + 2x
2(2) + 3 and 3 + 2(2)
4 + 3 and 3 + 4
7 and 7
Both are equal.
Thus the two expressions are equivalent.
More about the linear equation link is given below.
https://brainly.com/question/20379472
Answer:
if both expressions have the same value after submitting and simplifying for x = 6 and x = 2, then they are equivalent. Substitute 6 for each variable, 6 for each variable, x, in both expressions. The value on both expressions is 15. Now, substitute 2 for each variable, x, in both expressions. The value of both expressions is 7. Therefore, the expressions are equivalent.
Step-by-step explanation:
Sample response. Wait, have you smiled today? its very important:)
50 points hellpppppppppppppppppppppppp
Answer:
Pattern : 4 is added every time in this table of values.
Step-by-step explanation:
a)
According to the values of the first three terms in the table we can state that:
This is an arithmetic sequence with the first term of 3 and the common difference of 4.We can show this as recursive formula:
a₁ = 3, aₙ = aₙ₋₁ + 4b)
The next terms are:
a₄ = 11 + 4 = 15a₅ = 15 + 4 = 19a₆ = 19 + 4 = 23If answered and explained properly, BRAINLIEST will be given.
so initially the paper is in full piece.
it is cut into half, which makes into 2. this is pattern 1.
then the halves is further divided in to 2.
then the total becomes 4. then the four pieces are cut into halves, which makes the total of 8 pieces, that is pattern 3..
is if we see the pattern it is a geometric progression.
Tn=ar²-¹ where the r is common ratio
and a is the first term. the question mentioned repeat 15 times.
1. 2
2. 4
3. 8
4. 16
4÷2=2 the common ratio.
So T(15)= 2×2¹⁵-¹
2×2¹⁴
2¹⁵
32768 pieces
please mark brainliest.
I WILL GIVE BRAINLY
Solve 3x+11x=84
X=___
3x + 11x = 84
add 3x and 11 x
14x = 84
Take 14 to other side and divide it
[tex]x \: \: = \frac{84}{14} [/tex]
x = 6 answer
Answer:
[tex] \sf3x + 11x = 84[/tex]
[tex] \sf14x = 84[/tex]
[tex] \sf \: x = \frac{84}{14} [/tex]
[tex] \sf \: x =6 [/tex]
