Answer:
stight line
Step-by-step explanation:
A bag contains 10 colored marbles - 4 red, 4 blue and 2 green.
Calculate the probability of removing 4 marbles without
replacing and getting exactly 3 blue.
Answer: 1/35
Step-by-step explanation:
I just did the assignment on ck-12 and got it right.
The probability of removing 4 marbles without replacing and getting exactly 3 blue is 1/35.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.
The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.
A bag contains 10 colored marbles - 4 red, 4 blue, and 2 green.
The probability of removing 4 marbles without replacing and getting exactly 3 blue.
= 1/35
Learn more about probability here;
https://brainly.com/question/11234923
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A consumer affairs investigator records the repair cost for 4 randomly selected washers. A sample mean of $52.63 and standard deviation of $22.01 are subsequently computed. Determine the 80% confidence interval for the mean repair cost for the washers. Assume the population is approximately normal. Step 2 of 2 : Construct the 80% confidence interval. Round your answer to two decimal places.
Answer:
The 80% confidence interval for the mean repair cost for the washers is between $34.60 and $70.66.
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 4 - 1 = 3
80% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 3 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.8}{2} = 0.9[/tex]. So we have T = 1.638
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 1.638\frac{22.01}{\sqrt{4}} = 18.03[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 52.63 - 18.03 = $34.60
The upper end of the interval is the sample mean added to M. So it is 52.63 + 18.03 = $70.66.
The 80% confidence interval for the mean repair cost for the washers is between $34.60 and $70.66.
HELP PLS Find the measure of the angle indicated.
Answer:
I think that that angle would also be 102 degrees.
in a population of grasshoppers, the ratio of grasshoppers with a white marking to those without a white marking is 2:3. An entomologist captures and photographs 290 grasshoppers. How many photographs are likely to show grasshoppers with a white marking?
A. 193
B. 58
C. 112
D. 116
Answer:
D. 116
Step-by-step explanation:
Let the grasshoppers with a white marking be 2x.
Let the grasshoppers without a white marking be 3x.
2x + 3x = 290
5x = 290
x = 290 / 5
x = 58
The grasshoppers with a white marking
= 2x
= 2 ( 58 )
= 116
Question in the attachments
here's the question
Answer:
it is 2
Step-by-step explanation:
pls make me blanliest
please help this is overdue
Plz help me..........
Answer: 7 cubic meters
Step-by-step explanation:
you add
Maria wants to spend less than $110. She wants to buy some shirts, s.
that are priced at $9 each. She also decided to buy a pair of high heels for
$60. WRITE THE INEQUALITY that represents the word problem to
determine the number of shirts she can buy.
she can buy 5 shirts
Laura retired from her job recently, and she has saved about $427,595.00 over the course of her career. She plans to withdraw
$1,490.00 each month to pay for living expenses. After a certain amount of time, the balance in Laura's account is $391,835.00.
How many months have passed since Laura retired?
Answer:
24 mouths have passed
Step-by-step explanation:
A square pyramid has a height of 6 meters the perimeter of the base is 40 meters what is the volume?
Answer: 1/3.(√3/4)×40×40 ×5√(5
Step-by-step explanation:
Answer:
200 m^3
Step-by-step explanation:
1) find the side of the base
side = 40 : 4 = 10 m
2) find the base area
base area = side^2 = 10^2 = 100 m^2
3) find the Volume
V = (base area x height)/3 = (100 x 6)/3 = 200m^3
Given the function rule f(x) = x^2 - 5x + 1, what is the output of f(-3)?
a. 7
b. -5
c. 25
d. 5
Answer:
C
Step-by-step explanation:
To evaluate f(- 3) substitute x = - 3 into f(x) , that is
f(- 3) = (- 3)² - 5(- 3) + 1 = 9 + 15 + 1 = 25
De acuerdo con el ciclo práctico o ciclo real de funcionamiento de un motor, las válvulas de admisión y escape no se abren y cierran exactamente en los puntos muertos superior e inferior. Debido a esto se genera un instante donde están abiertas las válvula de admisión y de escape al mismo tiempo, a lo que se le conoce como traslape o cruce valvular - ¿Cómo se determina el traslape?
Answer:
no one here speaks spanish-
Step-by-step explanation:
What is the percentage?
Divide. Write your answer as a proper fraction, a whole number, or a mixed number 5÷7=
Answer:
5/7
Step-by-step explanation:
Reason why is because when you're dividing, the second number gets flipped around. For example, the 7 becomes 1/7 and instead of dividing, it becomes 5x1/7, which equals 5/7! Hope this helps
is 2.65 = 53/20 true or false and show work
Answer:true
Step-by-step explanation:
QUESTION BELOW PLEASE HELP
Answer:
61°
Step-by-step explanation:
180° - 119° = 61°
Please awnser math ###
Answer:
1. 42
2. 46
3. 0
Step-by-step explanation:
math
Answer:
1. x = 42
2. y = 46
3. z = 0
Step-by-step explanation:
1. 45 + x = 87
subtract 45 from both sides
x = 42
2. y - 31 = 15
add 31 to both sides
y = 46
3. 5z = 0
divide 5 from both sides
z = 0/5
since any fraction with a numerator of 0 is equal to 0, we get
z = 0
Which of the following is a factor of the polynomial 2x^2 -
3x - 5?
Answer:
I love algebra anyways
the ans is in the picture with the steps
(hope it helps can i plz have brainlist :D hehe)
Step-by-step explanation:
What is 1 third more than 0?
6q + 8 = -9 - 76
a. 12
b. -12
c. 84
d. -84
Answer: the answer will be -15.5, but this number is not in the choices given, so I guess you made a mistake while writing the equation
Step-by-step explanation:
6q+8=-9-76
6q+8=-85 Subtract 8 from both sides
6q=-93 Divide both sides by 6
q=-15.5
What is the equation needed to solve for X?
Answer:
[tex]x - 8 + 4x - 7 = 180 \\ \\ 5x - 15 = 180 \\ \\ 5x = 180 + 15 \\ \\ 5x = 195 \\ \\ x = 195 \div 5 \\ \\ x = 39 \\ [/tex]
What could be added to each expression to make it a perfect square? Then
write the perfect square factor.
Expression 1*
2 poi
x2 + 12x
Answer:
x²
Step-by-step explanation:
just check this 2x²+3x-5=0
Abigail is using her mother's pancake recipe, but she wants to make 60% more pancakes than the recipe usually prepares. If her mother's recipe calls for 1/2 cup of flour, how much flour will Abigail need to use?
Which 1 is it ?
1 1/10 cups
1 3/5 cups
4/5 cup
3 1/0 cup
Answer:
C- 4/5 cups
Step-by-step explanation:
the product of 23
and 20
the number of televisions owned by Matt's classmates is 1, 4, 3, 3, 2, 1, and 7. what is the mean absolute deviation for the number of televisions owned by Matts classmates answer
Please Help!!!!!!!!!!
Answer: Yes, because there are at least two claims
Step-by-step explanation:
Ur welcome 3>
A window washer earns $4 per window. Which equation represents the relationship between his total earnings and the number of windows he washes?
I need help I will mark you if you get it right
how many times does 8/3 go into 1/3
Answer:
2 times, so it would be 2 2/3
Step-by-step explanation:
Hope this helped! Have an Amazing Day! Or Night!! :)
9514 1404 393
Answer:
1/8
Step-by-step explanation:
To find out, divide 1/3 by 8/3.
(1/3)/(8/3) = 1/8
8/3 goes into 1/3 exactly 1/8 times.
__
There are (at least) two ways to divide fractions.
1. "invert and multiply" (A.K.A. "swap dot")
[tex]\dfrac{1}{3}\div\dfrac{8}{3}=\dfrac{1}{3}\cdot\dfrac{3}{8}=\dfrac{1\cdot3}{3\cdot8}=\boxed{\dfrac{1}{8}}[/tex]
__
2. Drop common denominators.
[tex]\dfrac{1}{3}\div\dfrac{8}{3}=1\div8=\boxed{\dfrac{1}{8}}[/tex]