Answer:
undefined
Step-by-step explanation:
3x+5=x-1
2x=-6
x=-3
but when u check its undefined
The ratio of length to width in a rectangle is 3 to 1. If the perimeter of the rectangle is 128 feet, what is the length of the rectangle?
Answer: B
Step-by-step explanation:
Answer
Step-by-step explanation:
The line passes through (0,4) and (6,6), so the slope is
Answer:
1/3
Step-by-step explanation:
Which rule describes the x-coordinates in the translation below?
Answer:
It's either x-6 or x+6 I wanna say that it is x-6 because they moved the shape down, but it could also have been moved up. I was assuming that the green one was the original, which would make the answer x-6.
Step-by-step explanation:
Answer:he is wiring the answer would be x+6 and the bike is the original because it does not have primes on the numbers
Step-by-step explanation:learn your mad bro
cuantas horas son de 7am a 7pm
I have a cage with cats and birds. there are 12 heads and 32 feet. how many
birds are there
12x4=48
48-32=16
4-2=2
16 divided by 2=8 birds
Answer:
4 cats, 8 birds
Step-by-step explanation:
make a system of equations and solve.
Shakira se presentará en la Ruta del Vino, y para ello su anuncio ha aparecido en un espectacular por la Avenida Reforma, si la letra A aparece en el letrero, y el ángulo en la parte superior de la letra es de 40° y su base es de 60 cm, ¿cual es la altura de la letra?
Answer:
82.4 cm
Step-by-step explanation:
The computation of the height is given below:
As we know that each right triangle contains the top angle of 20 degrees
So, the right angle & the bottom corner angle equivalent to
= 180 - 90 - 20
= 70 degrees
Now the height is
tangent = opposite leg ÷ adjacent leg
tan (70°) = height ÷ 30 cm
height = 30 cm × tan (70°)
= 82.4 cm
2The winning number in a Pick 4 lottery was 1234 two days in a row. What is the likelihood of this
number occurring on the next drawing?
(a) Very unlikely. It will almost certainly never happen.
(b) The same as any other four digit number.
(C) Very likely. The number is hot.
(d) Impossible.
(e) There is no way of knowing.
The correct answer is,
(a) Very unlikely. It will almost certainly never happen.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
The winning number in a Pick 4 lottery was 1234 two days in a row.
Now,
Since, there is a 1 in 10,000 chance of drawing any particular four-digit number in a single drawing, there is very little chance that the same number will be picked twice in a row in a Pick 4 lottery.
Even less likely, at one in 100,000,000,000, is the same number being selected three times in a row.
So, (a) Very unlikely is the correct response. It's almost probably never going to happen.
Learn more about the mathematical expression visit:
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Select the two pairs that are similar!
It's the rectangle and squares(answer)
Step-by-step explanation:
Squares can be rectangles but rectangles cant be squares.
Katie earns $0.50 each time she does a chore. She does some chores. Then she gets $6 for her birthday. How much money does she have?
Answer:
First I need to know how much chores she does because I can't get the money that she makes with the word SOME I need to know how many chores she makes.
Step-by-step explanation:
Please help I don’t understand
city workers recorded the number of squirrels in a park over a period of time. At the first count, there were
30 total squirrels. After 1 year, the city workers recorded a total of 60 squirrels, and after 2 years there were
120
a. Write a function that represents the population of squirrels recorded over x number of years,
b. Assuming the same growth rate and no squirrel dies, what will the squirrel population be in 6 years?
Justify your answer mathematically
Function:
A. x times 60 = the amount of squirrels in that year
Answer
B. 6 X 60 = 360
Step-by-step explanation
Years | Squirrels
______________
1 | 60
---------------------------
2 | 120
-------------------------
3 | 180
-------------------------
4 | 240
-------------------------
5 | 300
-----------------------
6 | 360
Reflection across y=3
The reflected coordinates of the triangle along y = 3 are X'(0, - 1), U'(3, - 1) and L'(3, - 5).
What are transformations?Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.
Dilation: The preimage is scaled up or down to create the image.
Reflection: The picture is a preimage that has been reversed.
Rotation: Around a given point, the preimage is rotated to create the final image.
Translation: The image is translated and moved a fixed amount from the preimage.
Given, a triangle is reflected along y = 3.
First, the coordinates (x, y) of the triangle are X(0, 5), U(-3, 5) and L(-3, 1).
We know reflected along the y-axis is (-x, y) so reflection along y = 3 is
(-x, y - 2×3).
∴ X'(0, - 1), U'(3, - 1) and L'(3, - 5).
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7m-6; m =8
I think the answer is 2 or 14 but I need confirmation tho .
Answer: 50
Step-by-step explanation:
(7*8) - 6
56 - 6 = 50
12. 14.5% of 90 is n. The value of n is 15.
Answer:14.5% of 19 is 13.05, so the value of n would actually be 13.05
Hey yall I need help
Evaluate the expression |−35|+|7|−|−5|−|−4|−(−5)
Answer: 38
Step-by-step explanation: i dont know
Answer:
38
Step-by-step explanation:
hey there!
so if you didn't know ll means absolute value
the absolute value of -35 is 35
the absolute value of 7 is 7
the absolute value of-5 is 5
the absolute value of -4 is 4
and -(-5) the two negative signs cancel out to make it +5
now we have 35+7-5-4+5
35+7=42
42-5=37
37-4=33
33+5=38
so the answer would be 38
A carpenter has a board that is 4 feet long. He wants to cut it into 3 equal pieces. How many inches long will each piece need to be?
Answer:
16 inches or 1 1/3 foot
Step-by-step explanation:
4 feet = 48 inched
48/3 = 16 inches
The phenomenon of bottle flipping has hit the nation. You design a machine that can randomly flip a bottle. You observe 2180 random, independent flips, and 325 land the correct way. Estimate the overall proportion of bottles that land correctly when flipped randomly. Use a 98% confidence level. Round everything to 3 decimal places. a) State the parameter of interest. Verify that the necessary conditions are present in order to carry out the procedure.
Answer:
The variable of interest is the proportion of flips that land the correct way when flipped randomly.
The necessary conditions [tex]n\pi \geq 10[/tex] and [tex]n(1-\pi) \geq 10[/tex] are present.
The 98% confidence interval for the overall proportion of bottles that land correctly when flipped randomly is (0.131, 0.167).
Step-by-step explanation:
Variable of Interest:
Proportion of flips that land the correct way when flipped randomly.
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
Necessary conditions:
The necessary conditions are:
[tex]n\pi \geq 10[/tex]
[tex]n(1-\pi) \geq 10[/tex]
You observe 2180 random, independent flips, and 325 land the correct way.
This means that [tex]n = 2180, \pi = \frac{325}{2180} = 0.149[/tex]
Necessary conditions
[tex]n\pi = 2180*0.149 = 325 \geq 10[/tex]
[tex]n(1-\pi) = 2180*0.851 = 1855 \geq 10[/tex]
The necessary conditions [tex]n\pi \geq 10[/tex] and [tex]n(1-\pi) \geq 10[/tex] are present.
98% confidence level
So [tex]\alpha = 0.02[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.02}{2} = 0.99[/tex], so [tex]Z = 2.33[/tex].
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.149 - 2.33\sqrt{\frac{0.149*0.851}{2180}} = 0.131[/tex]
The upper limit of this interval is:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.149 + 2.33\sqrt{\frac{0.149*0.851}{2180}} = 0.167[/tex]
The 98% confidence interval for the overall proportion of bottles that land correctly when flipped randomly is (0.131, 0.167).
How to write
six hundred thirteen trillion, one billion, thirty-five million, two hundred eight thousand, three in standard notation
Some biology students were checking eye color in a large number of fruit flies. For the individual fly, suppose that the probability of white-eyes is 1/4 and the probability of red-eyes is 3/4. We may treat these observations as independent Bernoulli trials. what is the probability that at least 3 flies have to be checked for eye color to observe a white-eye fly?
Answer:
0.5625 = 56.25% probability that at least 3 flies have to be checked for eye color to observe a white-eye fly.
Step-by-step explanation:
A sequence of independent Bernoulli trials is the binomial probability distribution.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
What is the probability that at least 3 flies have to be checked for eye color to observe a white-eye fly?
This is the probability of no white-eyes during the first two flies, that is, [tex]P(X = 0)[/tex] when [tex]n = 2[/tex]
Probability of white-eyes is 1/4
This means that [tex]p = \frac{1}{4} = 0.25[/tex]
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{2,0}.(0.25)^{0}.(0.75)^{2} = 0.5625[/tex]
0.5625 = 56.25% probability that at least 3 flies have to be checked for eye color to observe a white-eye fly.
0.0000643 in standard form?
ANSWER: 0.0000643 x 10^0
Find the lettered angles.
.
Is the relation shown in the arrow diagram a function? Explain.
please help it’s for a test
Answer:
No, it is not a function because they should be going to their designed areas Hope this helped/.
Step-by-step explanation:
Pls someone help me you get 75 points for it the picture is above this
Answer:
D. h = 2A/bStep-by-step explanation:
A = 1/2bh2A = bh2A/b = hh = 2A/bCorrect choice is D
On average, there are 12 potholes per mile on a particular stretch of the state highway. Suppose the potholes follow a Poisson distribution on the highway. a. Find the probability of finding fewer than two potholes in a quarter-mile stretch of the highway. (Do not round intermediate calculations. Round your final answer to 4 decimal places.) b. Find the probability of finding more than one pothole in a quarter-mile stretch of the highway. (Do not round intermediate calculations. Round your final answer to 4 decimal places.)
Answer:
a) 0.1992 = 19.92% probability of finding fewer than two potholes in a quarter-mile stretch of the highway.
b) 0.8008 = 80.08% probability of finding more than one pothole in a quarter-mile stretch of the highway.
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]
In which
x is the number of sucesses
e = 2.71828 is the Euler number
[tex]\mu[/tex] is the mean in the given interval.
a. Find the probability of finding fewer than two potholes in a quarter-mile stretch of the highway.
Mean of 12 potholes per mile, which means that in a quarter-mile stretch, the mean is [tex]\mu = \frac{12}{4} = 3[/tex]
This probability is:
[tex]P(X < 2) = P(X = 0) + P(X = 1)[/tex]
In which
[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]
[tex]P(X = 0) = \frac{e^{-3}*(3)^{0}}{(0)!} = 0.0498[/tex]
[tex]P(X = 1) = \frac{e^{-3}*(3)^{1}}{(1)!} = 0.1494[/tex]
[tex]P(X < 2) = P(X = 0) + P(X = 1) = 0.0498 + 0.1494 = 0.1992[/tex]
0.1992 = 19.92% probability of finding fewer than two potholes in a quarter-mile stretch of the highway.
b. Find the probability of finding more than one pothole in a quarter-mile stretch of the highway.
This is
[tex]P(X > 1) = 1 - P(X < 2)[/tex]
We have that [tex]P(X < 2) = 0.1992[/tex]
So
[tex]P(X > 1) = 1 - P(X < 2) = 1 - 0.1992 = 0.8008[/tex]
0.8008 = 80.08% probability of finding more than one pothole in a quarter-mile stretch of the highway.
Rita is reviewing her electricity bills for the past year. The monthly bills were: $92, $98, $90, $99, $96, $91, $89, $106, $95, $102, $96, $99.
Select the correct answer. Which measure should Rita use to find the average monthly bill for the year?
A. range
B. interquartile range
C. median
D. mean
Answer:
mean
Step-by-step explanation:
the mean is the average
Answer:
the correct answer is "mean"
Step-by-step explanation:
Question 5 (5 points)
✓ Saved
(06.02 LC)
A scatter plot is shown:
Which graph best represents the line of best fit for this scatter plot? (5 points)
Answer:
I would say the answer is 2
Step-by-step explanation:
What type of polynomial is this ? 3x2-8x+1
Answer:
Trinomial
degree of polynomial:2nd degree - Quadratic
Step-by-step explanation:
Can someone please find the areas of these shapes? I've been having a hard time with trying to figure them out.
Find 14 divided by 29. Input your answer as a reduced fraction.
Answer:
14/29. reduced form............
Answer:
14/29 . in reduced fractions0.482758620 in decimalWhen Felix started his paper route, he had 25 customers. Every second week he gained 2 new customers. Every third week he lost a customer. How many customers did he have in the seventh week?
Answer:
29
Step-by-step explanation:
srry took a sec
Answer:
Step-by-step explanation:
yes can you tell me the step by step explanation
