Answer:
a. 9 b. 87 c.2 d. -9
Step-by-step explanation:
a bag contains only red , yellow brown and green marbles
the probabilities of selecting each colour are below
red - 5x
green - 2x
brown - 3x
yellow - 4x
find the probability of selecting a green marble
Answer:
1/7
Step-by-step explanation:
Probability is the likelihood or chance that an event will occur. this is expressed as;
Probability = Expected outcome/Total outcome
From the question, the total number of marbles is the total outcome
Total outcome = 5x + 2x + 3x + 4x
Total outcome = 14x
Since we are to find the probability of selecting a green marble, the expected outcome will be total number of green marbles which is 2x
Pr(selecting green marbles) = 2x/14x
Pr(selecting green marbles) = 1/7
Hence the probability of selecting a green marble is 1/7
3. El grupo de Mariana se organizó en seis equipos. Cada equi-
po cumplirá con tres comisiones al mismo tiempo (aseo, pun-
tualidad y orden) durante una semana. Los equipos irán par-
ticipando en orden numérico durante el primer cuatrimestre
del ciclo escolar; los turnos se iniciarán la segunda semana de
clases. Mariana es integrante del equipo 4; ¿en qué periodos
le tocará participar? ¿Todos los equipos participarán el mismo
número de veces? ¿Por qué?
Answer:
¿en qué periodos le tocará participar?
El equipo cuatro participa en el periodo 5 - 11 - 17
¿Todos los equipos participarán el mismo número de veces?
Todos los equipos los hacen 3 veces . menos 1 equipo que lo hace 2 veces
¿Por qué?
Cuatrimestre. = 120 dias
Numero de semanas = 120/ 7 17,1
17 semanas completas 3 dias
No se trabaja la primera semana. por lo que quedan 16 semana 3 dias.
Son 6 equipos para participar todos serian por lo menos 17 semanas 1 dia.
Step-by-step explanation:
Cuatrimestre. = 120 dias
Numero de semanas = 120/ 7 17,1
17 semanas completas 3 dias
No se trabaja la primera semana. por lo que quedan 16 semana 3 dias.
Son seis equipos. 17 ( 16,3) semanas / 6
Todos los equipos los hacen 3 veces . menos 1 equipo que lo hace 2 veces
Semana 1 2 3 4 5 6
Equipos
1
2 X
3 X
4 X
5 X
6 X
7 X
8 X
9 X
10 X
11 X
12 X
13 X
14 X
15 X
16 X
17 X
18 X
What is the difference between a fossil and an artifact?
Answer:
An artifact is an item made by a human being, while a fossil is a preserved remain of a pre-historic animal.
need the answer help
Answer:
Both expression equals 5 when substituting 2 for x, because the expressions are equivalent.
Step-by-step explanation:
Given the expressions:
(1/2)x + 4
x + 6 - (1/2)x - 2
Substituting 2 for x in the equation :
(1/2)x + 4
x = 5
(1/2)2 + 4
2/2 + 4
1 + 4
= 5
x + 6 - (1/2)x - 2
Substituting 2 for x
2 + 6 - (1/2)2 - 2
8 - 2/2 - 2
8 - 1 - 2
= 5
What is an equation of the line that passes through the points (-6, 3) and (-6, -3)?
9514 1404 393
Answer:
x = -6
Step-by-step explanation:
A plot of the points tells you one is above the other on the same vertical line. The equation for a vertical line is ...
x = constant
In order for the line to go through points that have x-coordinates of -6, the constant must be -6. The equation of the line is ...
x = -6
What is the simplified base for the function f(x) = 2(7272)?
Answer:
The simplified base is 9Step-by-step explanation:
The question is not quiet correctly displayed, it should be:
f(x) = 2[tex]\sqrt[3]{27^2^x}[/tex]Simplifying:
f(x) = 2[tex]\sqrt[3]{27^2^x}[/tex] = 2[tex]\sqrt[3]{3^3*^2^x}[/tex] = 2(3²ˣ) = 2(9ˣ)f(x) = 2(9ˣ)The simplified base is 9
Look at the system of equations graphed below.
What is the solution to the system?
A. X=4, y=-2
68
B. X=4, y=1
5
4
C.x=1, y=-2
3
D D. x=2, y=-1
2
.
2.
4 5 6
-6-5-4 -3 -2 -1 0 1
-1
-3
-4
-5
Answer: The correct answer to the equation is B.
Hope this helps :)
Not my handwriting sorry if it's sloppy.
How did conditions differ between plantations in North America and the Caribbean?
A. Work conditions were harsher in the Caribbean, and plantations were much larger than those in North America.
B. Harsher weather reduced the survival rates for enslaved people in North America.
C. Only women were allowed to work in the sugar plantations of the Caribbean
D. Work conditions were harsher in North America, and plantations were much larger than those in the Caribbean
Answer:
A) Work conditions were harsher in the Caribbean, and plantations were much larger than those in North America.
Step-by-step explanation:
the pf text book states: " Slaves in the Caribbean had the worst working conditions. They were required to work on sugar plantations from sunrise to sundown. The conditions were so severe that the average lifespan of a slave in the Caribbean was only 23 years old. Slaves in North America fared a bit better, though working conditions were still harsh."
Would anyone like to help me
Please give me the answer to this it's due at 8:00
Answer: 20
Step-by-step explanation:
Answer:
Each metal sheet costs 18 dolares per square foot
Step-by-step explanation:
7.6x−2.3x= $95.40
simplify
5.3x = $95.40
/5.3
x = 18
6.5 x 10^6 an ordinary number
Answer:
HAPPY NEW YEAR
A bag contains 4 g r e e n marbles, 8 b l a c k marbles, and 7 b l u e marbles. If a marble is drawn from the bag, replaced, and another marble is drawn, what is the probability of drawing first a g r e e n marble and then a b l u e marble
Answer:
[tex]P(Green\ and\ Blue) = 0.0776[/tex]
Step-by-step explanation:
Given
[tex]Green = 4[/tex]
[tex]Black = 8[/tex]
[tex]Blue=7[/tex]
Required
Determine the probability of selecting green then blue marble
This probability is represented as:
[tex]P(Green\ and\ Blue)[/tex]
And it is calculated using:
[tex]P(Green\ and\ Blue) = P(Green) * P(Blue)[/tex]
[tex]P(Green\ and\ Blue) = \frac{n(Green)}{Total} * \frac{n(Blue)}{Total}[/tex]
Total marble is:
[tex]Total = 4 + 8 + 7[/tex]
[tex]Total = 19[/tex]
So, we have:
[tex]P(Green\ and\ Blue) = \frac{4}{19} * \frac{7}{19}[/tex]
[tex]P(Green\ and\ Blue) = \frac{4*7}{19*19}[/tex]
[tex]P(Green\ and\ Blue) = \frac{28}{361}[/tex]
[tex]P(Green\ and\ Blue) = 0.0776[/tex] -- approximated
Hence, the required probability is approximately 0.0776
Which of the following is a vertical line?
1) y = 6
2) x = 6
3) y = 6x - 4
4) y = -x
Answer:
2) x = 6
Step-by-step explanation:
A vertical line is a line that goes up and down, where x goes not change
It is of the form x=
x =6 is a vertical line
Answer:
It is 2) x=6
Step-by-step explanation:
Since the x axis is the vertical side, it would be vertical. The line would also be vertical, the others are horizantal and are not vertical.
Which equation has infinitely many solutions?
A.
-5(x + 2) = -4x- 12 - X + 2
B.
3x- 4 + 2x = 5(x-4)
c. 5(x + 7) = -5(x-7)
D
6x+ 2 - X=-2x - 2 + 7x
Answer:
A. -5(x + 2) = -4x - 12 - x + 2
Step-by-step explanation:
The equation that has infinitely many solutions will be the same on both sides.
A is the correct answer.
Simplify the equation by distributing -5 and adding like terms:
-5(x + 2) = -4x - 12 - x + 2
-5x - 10 = -4x - 12 - x + 2
-5x - 10 = -5x - 10
So, this equation is the same on both sides and will have infinitely many solutions.
A is the correct answer.
Answer:
A has infinitely many solutions
Step-by-step explanation:
Once you distribute A you get
-5x-10= -4x-12-x+2
Once you simplfy all that you get
-5x-10= -5x-10
You can check this by putting in a random number and both sides will be equal.
Speacial Right Triangles
Answer:
special right triangles
Step-by-step explanation:
A special right triangle is a right triangle with some regular feature that makes calculations on the triangle easier, or for which simple formulas exist. For example, a right triangle may have angles that form simple relationships, such as 45°–45°–90°.
hope it helps!
What is the initial value of the equation shown?
y = −7x − 6
Answer:
[tex]y = -6[/tex]
Step-by-step explanation:
Given
[tex]y = -7x-6[/tex]
Required
Determine the initial value
The initial value of any equation is the point where
[tex]x = 0[/tex]
Substitute 0 for x in [tex]y = -7x-6[/tex]
[tex]y = -7 * 0 - 6[/tex]
[tex]y=0-6[/tex]
[tex]y = -6[/tex]
Hence, the initia; value is -6
Answer:
the answer is -6 ( and or c )
Step-by-step explanation:
Find the missing y-coordinate that makes the two triangles congruent. Triangle ABC: A(8,4), B(2,6), C(5, 0) Triangle MNO: M(7,4), N(1,2), O(4, y)
Answer:
negative 2
Step-by-step explanation:
Which bag if candy is the better buy and why? (Trents mom shopping)
Answer:
almond joy
Step-by-step explanation:
its good in my opinion
can u pls help me with this question
Answer:
I cannot see the whole thing
Answer:
Its easy. What grade are you in?
Step-by-step explanation:
What is the equation of the line that passes through the point (4,7) and has a slope of -1/4
Answer:
Step-by-step explanation:
since you are given the slope and a point....
use point slope formula y-y1 = m(x-x1)
y - 7 = -1/4 (x - 4)
then get that into the slope intercept form , use the formula y = mx + b as your target
y -7 = -1/4x +1
y = -1/4x +1 +7
y = -1/4x + 8 that's your answer
2. Rachel makes cranberry almond cookies. The number of cups of cranberries and the number of cups of almonds are shown in the table below. What is the ratio of cups of cranberries to cups of almonds?
Answer:
Step-by-step explanation:
By 2 for the first one. And for 2 they skip counting by 6
PLEASE ANSWER THIS QUESTION RIGHT AND THE ANSWER CHOICES ARE IN THE TOP Elize is scuba diving in plans to leisurely Ascend to the surface. Her depth in feet D(t) and her time in minutes T to reach the surface are Represented by the table below. What is an appropriate domain for the situation?
Using it's concept, it is found that an appropriate domain for this situation is:
[tex]0 \leq t \leq 10[/tex], where t represents the set of rational numbers.The domain of a function is the set that contains all possible input values.In this problem:
The input is the time in seconds, and the output is her depth, in feet.The time assumes rational values between 0 and 10, hence, the domain is [tex]0 \leq t \leq 10[/tex], and the correct option is:[tex]0 \leq t \leq 10[/tex], where t represents the set of rational numbers.
You can learn more about domain at https://brainly.com/question/24374080
51) Write the equation of the line passing through (-2, 5) and perpendicular x + 3y = 15.
Answer: plz mark me brainliest
Step-by-step explanation:
I need points to ask a question
A pyramid has cross-sectional shapes taken parallel to its base that are___ to one another
Answer:
The fill in the blank is the word similar.
Step-by-step explanation:
A pyramid has a cross-sectional shapes, taken parallel to its base, that are similar to one another.
When we do the cross-section of a pyramid parallel to its base, the cross-section formed will be in the same shape like the base.
Whenever a cross section is done parallel to the base of any pyramid, the resulting shape will be same like the base. As we move up in the pyramid and cross section it, the shape formed will be like the base but with smaller dimensions. But the shape will be the same as the base.
Answer: Similar
Step-by-step explanation:
Mr. Floyd, the school librarian, is ordering new keyboards and mice for all of the school's computer labs. Each keyboard costs $13.50, and each mouse costs $6.50. There are 3 computer labs in the school, and each computer lab has s computer stations.
Pick all the expressions that represent how much Mr. Floyd will spend on new keyboards and mice.
Answer:
13.50 + 6.50 x ( 3 x s) =
Step-by-step explanation:
I don't know what the options are, however that is how I would write it.
Write in simplest form. 2^9÷2^3 PLEASE HELP
Answer:
27
Step-by-step explanation:
2x9/2x3=27
What is 17/10 as a percent
Answer:
.017 is your answer!
17/10 as a decimal is 1.7 and that as a percentage is .017
Step-by-step explanation:
hope this helps!
Answer:
170%
Step-by-step explanation:
The answer is 170% because 17/10 is the same thing as 1.7 and 1.7 as a percent is 170%
P.S Can I have brainliest?
Find x - y subtracted from 0.
a. -x+y
b. -y-x
c. x-y
15 points! Will give BRAINLIEST! Please help!
Answer:
a. 1.2
Step-by-step explanation:
b. 0.4
HELP ME PLZ
The lunch special at Rita's Restaurant is a sandwich, a drink and a dessert. There are 2 sandwiches, 2 drinks, and 3 desserts to choose from. How many lunch
specials are possible?