Answers
Answer: sorry but noooooooo
Step-by-step explanation: i am not sure eather
Answer:
heers
Step-by-step explanation:
Related Questions
Keep drawing a marble with replacement until one gets a red marble. Let Y denote the number of marbles drawn in total. What is the distribution of Y
Answers
The distribution of Y, representing the number of marbles drawn until a red marble is obtained, follows a geometric distribution with parameter p, which is the probability of drawing a red marble on any given trial.
In this scenario, we have a series of independent trials, each with two possible outcomes: drawing a red marble (success) or drawing a non-red marble (failure). Since we keep drawing marbles with replacement, the probability of drawing a red marble remains constant for each trial.
Let p be the probability of drawing a red marble on any given trial. The probability of drawing a non-red marble (failure) on each trial is (1 - p). The probability of drawing the first red marble on the Yth trial is given by the geometric distribution formula:
P(Y = y) = (1 - p)^(y-1) * p
Where y represents the number of trials until the first success (i.e., drawing a red marble). The exponent (y-1) accounts for the number of failures before the first success.
The geometric distribution formula allows us to calculate the probability of obtaining the first success on the Yth trial.
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Which statement describes the relationship between x and y in these 2 equations?
Y = 4x Y = x + 4
Answers
In y = 4x the value of y is 4 times the value of x, and in y = x + 4 the value of y is 4 more than the value of x.
Thus option D is Correct.
what is linear equation?
A linear equation is an equation in which the highest power of the variable is 1, and the equation can be graphed as a straight line. It is of the form y = mx + b, where m is the slope of the line, and b is the y-intercept, which is the point where the line crosses the y-axis. The variable y represents the dependent variable, while x represents the independent variable.
The relationship between x and y in these two equations is that they both represent a linear equation but with different slopes and y-intercepts.
The first equation, Y = 4x, is in slope-intercept form, where the slope is 4, and the y-intercept is 0. This means that as x increases by 1, y increases by 4, and the line passes through the origin.
The second equation, Y = x + 4, is also in slope-intercept form, where the slope is 1, and the y-intercept is 4. This means that as x increases by 1, y increases by 1, and the line intercepts the y-axis at (0, 4).
Therefore, In y = 4x the value of y is 4 times the value of x, and in y = x + 4 the value of y is 4 more than the value of x
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Complete Question :
Which statement describes the relationship between x and y in these two equations? y = 4x and y = x + 4
A. In y = 4x the value of y is 4 more than the value of x, and in y = x + 4 the value of y is twice the value of x.
B. In y = 4x and in y = x + 4, the value of y is 4 more than the value of x.
C. In y = 4x and in y = x + 4, the value of y is twice the value of x
D. In y = 4x the value of y is 4 times the value of x, and in y = x + 4 the value of y is 4 more than the value of x
Sam is making a project out of wood. He needs a board that is 2 3/4 feet long. He has a board that is 3 1/8 feet long. How much does Sam need to cut from the board for the project?
Answers
Answer:
He needs to cut 3/8
Convert: needs 22/8 and has 25/8
The mean life of a television set is 138138 months with a variance of 324324. If a sample of 8383 televisions is randomly selected, what is the probability that the sample mean would differ from the true mean by less than 5.45.4 months
Answers
The probability that the sample mean would differ from the true mean by less than 5.4 months is approximately 1.0000 or 100%.
We are given the following information:
1. The mean life of a television set (µ) is 138 months.
2. The variance (σ²) is 324 months.
3. We have a sample of 83 televisions (n).
4. We want to find the probability that the sample mean (X) differs from the true mean by less than 5.4 months.
First, let's find the standard deviation (σ) by taking the square root of the variance:
σ = √324 = 18 months
Next, we'll find the standard error (SE) using the formula SE = σ / √n:
SE = 18 / √83 ≈ 1.974
Now, let's find the Z-score corresponding to the desired difference of 5.4 months:
Z = (5.4 - 0) / 1.974 ≈ 2.734
Using a Z-table or calculator, we find the probability corresponding to Z = 2.734 is approximately 0.9932. Since we're looking for the probability that the sample mean differs from the true mean by less than 5.4 months, we need to consider both tails of the distribution (i.e., the probability of the sample mean being 5.4 months greater or 5.4 months lesser than the true mean). So, we need to calculate the probability for -2.734 as well, which is 1 - 0.9932 = 0.0068.
Finally, we'll add the probabilities for both tails to get the answer:
P(-2.734 < Z < 2.734) = 0.9932 + 0.0068 = 1.0000
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Please refer to the following attachment and find the value of x.
Answers
Answer:
5
Step-by-step explanation:
Sum of interior angles in a 4 sided quadrilateral is 360,
110 + 70 + 14x + 23x - 5 = 360
180 + 37x - 5 = 360
180 - 5 + 37x = 360
175 + 37x = 360
37x = 360 - 175
37x = 185
x = 185 / 37
x = 5
Step-by-step explanation:
We know that,
For a tetragon the sum of all 4 angle is 360°
According to the question,
70+110+(23x-5)+14x=360180+23x-5+14x=36037x-5=360-18037x=180+537x=185x=\(\sf{\dfrac{185}{37} }\)x=5Which two expressions are equivalent?
a.) 2a and 9/3 (a)
b.) 5a and 3(2a)
c.) 4a - 2a and a+a
d.). 4a - a and 1+1+1+a
Answers
Answer:
C) 4a-2a=a+a
Step-by-step explanation:
4a-2a=2a
2a=a+a
2a=2a
answer:
option c is correct!
explanation:
hope this helped! <3 i answered your question & hope you have a great day! if you wouldn't mind could you pls give me brainliest? (im trying to level up) thanks! :)
If f
'
(
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)
=
5
,
f
(
4
)
=
3
,
g
'
(
6
)
=
7
and R
(
x
)
=
g
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'
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Answers
The value of R'(4) when f'(4) = 5, f(4) = 3, g'(6) = 7 and R(x) = g[3 + f(x)] is 35.
To find R'(4), we need to differentiate the function R(x) with respect to x and then evaluate it at x = 4.
We have,
f'(4) = 5
f(4) = 3
g'(6) = 7
R(x) = g[3 + f(x)].
Let's differentiate R(x) step by step:
R(x) = g[3 + f(x)]
let's differentiate R(x) with respect to x:
R'(x) = g'[3 + f(x)] * [3 + f(x)]'
Using the chain rule, [3 + f(x)]' = f'(x).
Therefore, R'(x) = g'[3 + f(x)] x f'(x).
Now, let's evaluate R'(4):
R'(4) = g'[3 + f(4)] x f'(4)
Substituting the given values:
R'(4) = g'[3 + 3] x 5
R'(4) = g'(6) x 5
Since g'(6) is given as 7, we have:
R'(4) = 7 x 5
R'(4) = 35
Therefore, R'(4) = 35.
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The Question attached here is in improper form, the proper question is
If f'(4) = 5, f(4) = 3, g'(6) = 7 and R(x) = g[3 + f(x)] then R'(4) = ______
1.2x-0.6y=3
0.8x-1.4y=3
Answers
Answer:
1.2−0.6=30.8−1.4=3
Plz help!! Will make brainliest
Answers
Answer:
-2x^2-6x-15=0
Step-by-step explanation:
Shift the 15 to the other side to get ax^2+bx+c
-2x^2-6x-15=0
bryon collects data on the depth of a river at various points and the velocity of the river at these points. his data have a correlation coefficient of -0.9382.
Answers
The scatterplot that represents Bryson's data is the scatterplot that is downward sloping.(Check the graph attached)
What is negative correlation?
Correlation is a statistical measure used to measure the relationship that exists between two variables.Negative correlation means that the two variables move in opposite directions. If one variable increases, the other variable decreases. When there is a negative correlation, the graph of the variables is downward sloping.A link between two variables known as "negative correlation" occurs when one variable rises measure as the other falls, and vice versa. In statistics, -1.0 denotes a perfect negative correlation, 0 denotes no connection, and +1.0 denotes a perfect positive correlation. The relationship between two variables is always absolutely opposite when there is a perfect negative correlation.To know more about negative correlation check the below link:
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Find all the missing elements:C = 120°b = 5C = 11A = [?]° B = [ ]º a = [
![Find all the missing elements:C = 120b = 5C = 11A = [?] B = [ ] a = [](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/xrQbCgyq4XeIHqZmc84nxWpLrbdTQfmh.jpeg)
Answers
ANSWERS
• A = 36.8°
,• B = 23.2°
,• a = 7.6
EXPLANATION
We can find B using the law of sines,
We have b = 5, c = 11 and C = 120°. Using the last two ratios,
\(\frac{b}{\sin B}=\frac{c}{\sin C}\)Rise both sides of the equation to -1 - i.e. flip both sides,
\(\frac{\sin B}{b}=\frac{\sin C}{c}\)Multiply both sides by b,
\(\sin B=\frac{b}{c}\sin C\)And take the inverse of the sine,
\(B=\sin ^{-1}\mleft(\frac{b}{c}\sin C\mright)\)Replace with the values and solve,
\(B=\sin ^{-1}\mleft(\frac{5}{11}\sin 120\degree\mright)\approx23.2\degree\)Then, knowing that the sum of the measures of all the interior angles of a triangle is 180°, we find A,
\(A+B+C=180\degree\)Solving for A,
\(A=180\degree-B-C=180\degree-23.2\degree-120\degree\approx36.8\degree\)Finally, let's find a using the law of sines with the first and last ratios,
\(\frac{a}{\sin A}=\frac{c}{\sin C}\)Solving for a,
\(a=c\cdot\frac{\sin A}{\sin C}=11\cdot\frac{\sin 36.8\degree}{\sin 120\degree}\approx7.6\)Hence, the missing elements are A = 36.8°, B = 23.2° and a = 7.6.
![Find all the missing elements:C = 120b = 5C = 11A = [?] B = [ ] a = [](https://i5t5.c14.e2-1.dev/h-images-qa/answers/attachments/Y4ZvA4a71698diSqVvrLrAnL4l5nUBOD.png)
HELPPPPPPPPPPPPPPPPPPP ASAP!!!!!!
Answers
Answer:
there is 8 quadrilateral shapes
The area of a rectangular room is 750 square feet. The width of the room is 5 feet less than the length of the room. Which equations can be used to solve for y, the length of the room? Select three options.
y(y + 5) = 750
y2 – 5y = 750
750 – y(y – 5) = 0
y(y – 5) + 750 = 0
(y + 25)(y – 30) = 0
Answers
Answer:
y^2 - 5y = 750
Step-by-step explanation:
If length = y
then width = y - 5
Area = length x width
= y(y-5) = 750
Or, y^2 - 5y = 750
This equation can be further solved as follows:
y^2 - 5y - 750 = 0
Or, y^2 - 30y + 25y - 750 = 0
Or, y(y - 30) + 25(y - 30) = 0
Or, (y + 25)(y-30) = 0
So, there are two possibilities:
If (y + 25) = 0
then y = -25
but value of length cannot be negative,
Let us look at second possibility
If (y - 30) = 0
then y = 30
So, length = 30 feet
Check Answer:
Length = 30 feet
so, width = 30 - 5 = 25 feet
so, area = 30 x 25 = 750 square feet
How can you check that k ≥ 11 is the solution set to the inequality k + 14 ≥ 25?
Answers
Answer:
K= 11
Step-by-step explanation:
You solve for K by subtracting 14 by 25.
25-14= 11
When k is pluged into k\(\geq\) 11 the statement is true because it is equal to 11.
When plugged into k+14\(\geq\)25;
11+14 =25.
That statement is also true because 25 is equel to 25.
Mia buys 4 pens and 5 rubbers for £5.75.
Elise buys 1 pen and 4 rubbers for £3.5.
Work out the cost of one pen and one rubber.
Answers
Answer:
one pen costs 0.5 euros
one rubber costs 0.75 euros
Step-by-step explanation:
4p+5r=5.75
p+4r=3.5
-4r. -4r
p=3.5-4r
4(3.5-4r)+5r=5.75
14-16r+5r=5.75
14-11r=5.75
-14. -14
-11r=-8.25
r=0.75
One rubber cost 0.75 euros
Now to find cost of one pen we just fill in what we know
p+4(0.75)=3.5
p+3=3.5
-3. -3
p=0.5
1 pen cost 0.5 euros
Hopes this helps please mark brainliest
1. Which equation represents a line that is perpendicular to the line represented by 2x - y =7
Answers
The equation that represents a line that is perpendicular to the line represented by 2x - y = 7 is y = -1/2x + 6
Equation of a lineThe equation of a line in slope-intercept form is expressed as;
y = mx + b
where;
m is the slope
b is the y-intercept
For two lines to be perpendicular, the product of their slope must be -1
Given the equation 2x - y =7
Rewrite
y = 2x - 7
The slope of the line is 2, the slope of the line perpendicular must be -1/2. Hence from the given option, the equation that represents a line that is perpendicular to the line represented by 2x - y = 7 is y = -1/2x + 6
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Which one of the following parabolas has no real roots?
a) y = \(x^{2}\) + 4x + 1
b) y = \(x^{2}\) + 2x + 1
c) y = \(x^{2}\) + x + 1
d) y = \(x^{2}\) + 3x + 1
Answers
Answer:
answer is C
Step-by-step explanation:
to find how many answers roots the parabola has, we have to find Discriminant:
a) D= b^2 - 4ac= 4^2 - 4*1*1= 16 - 4= 12
D>0 so this parabola has 2 roots
b) D= b^2 - 4ac= 2^2 - 4*1*1= 4-4=0
D=0 so this parabola has 1 root
c) D= b^2 - 4ac= 1^2 - 4*1*1= 1 - 4= -3
D<0 so this parabola has no real roots
d) D= b^2 - 4ac = 3^2 - 4*1*1= 9-4= 5
D>0 this parabola has 2 roots
Quinn's dance teacher wants her to do 30 minutes of stretching each day. A. What percentage of this goal is 24 minutes of stretching? Answer: 24 minutes is % of 30 minutes B. What percentage of this goal is 42 minutes of stretching? Answer: 42 minutes is % of 30 minutes
Answers
Answer:
A- 24=80% of 30 mins
B-42=140% of 30 mins
Step-by-step explanation:
10% of 30 is 3 so 3x8=24
42/30=1.4 or 140
What is the yyy-intercept of y=5x-1y=5x−1y, equals, 5, x, minus, 1?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
(-1,0)(−1,0)left parenthesis, minus, 1, comma, 0, right parenthesis
(Choice B)
B
(0,-1)(0,−1)left parenthesis, 0, comma, minus, 1, right parenthesis
(Choice C)
C
(5,0)(5,0)left parenthesis, 5, comma, 0, right parenthesis
(Choice D)
D
(0,5)(0,5)
Answers
Answer:
B.(0,-1)
Step-by-step explanation:
Answer:
B.(0,-1)
Step-by-step explanation:
i just got it right
please someone I need the right answer will give brainiest if right
Answers
Answer:
C. Because (-3)^2 is NOT equal to -9
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
√-9 is 3i.
Since there is a negative in the root, you can't have a regular number as the answer.
It askes why -3 is not the answer. Because -3 squared is 9, not -9.
Para racionalizar el denominador de la fracción 6−2√3+5√
se requiere:
Answers
We need to multiply the numerator and denominator by 3-√5 to rationalize the denominator of the fraction. Therefore, the correct answer is option B
To rationalize the denominator of the fraction 6−2√3+√5, we need to eliminate any radicals present in the denominator. We can do this by multiplying both the numerator and denominator by an expression that will cancel out the radicals in the denominator.
In this case, we can observe that the denominator contains two terms with radicals: -2√3 and √5. To eliminate these radicals, we need to multiply both the numerator and denominator by an expression that contains the conjugate of the denominator.
The conjugate of the denominator is 6+2√3-√5, so we can multiply both the numerator and denominator by this expression, giving us:
(6−2√3+√5)(6+2√3-√5) / (6+2√3-√5)(6+2√3-√5)
Simplifying the numerator and denominator, we get:
(6 * 6) + (6 * 2√3) - (6 * √5) - (2√3 * 6) - (2√3 * 2√3) + (2√3 * √5) + (√5 * 6) - (√5 * 2√3) + (√5 * -√5) / ((6^2) - (2√3)^2 - (√5)^2)
This simplifies to:
24 + 3√3 - 7√5 / 20
Therefore, the correct answer is option B.
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Complete question is:
To rationalize the denominator of the fraction 6−2√3+√5
It is required:
A) multiply the denominator by 3−√5
B. multiply numerator and denominator by 3−√5
C. multiply numerator and denominator by 3+√5
D. multiply numerator and denominator by 6+√2
Please answer correctly !!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!
Answers
Answer:
140
Step-by-step explanation:
cause alternate interior angles
iready math, i need to answer asap
Answers
Answer: sorry i dont know i havnt done iready in years
Step-by-step explanation:
Answer: Down Below
Step-by-step explanation:
A. 11/26
B. 5/22
C.5/52
D.5/17
Support:
Cards :Wild|Number|Penalty|
Freq: 10 | 32 | 2 |
When finding 65% of 90 are you finding the part, whole, or percent?
Answers
Answer:
you are finding the part
Step-by-step explanation:
definitely not whole
not percent because it is already given as a percent
1. Julie went to the store to buy a pair of pants. The pants
are
normally $39.95. This week they are on sale for 25%
off the
regular price. What is the sale price?
2. During Little League baseball, the Tigers and the Cubs
finished the season atop the division. The Tigers won
11 games and lost 4. Because of a couple of rainouts,
the Cubs won 10 games and lost 3. Find percent of the
games both teams won.
3. The price of a stock was $52.63 when the stock market
opened. It rose to $61.50 when the stock market
closed. Find the percent of increase of the stock price
during the day.
4. In Kendra's school, 28 percent of seven graders went
to a movie theater over the weekend. If there are 800
students in the seventh grade, how many of them saw
a movie?
Answers
Answer:
Step-by-step explanation:
1) Let x represent the sale price.
normal price = $39.95. This week they are on sale for 25% off the regular price. The amount taken off is
25/100 × 39.95 = 9.9875
Sale price = 39.95 - 9.9875 = $29.9625
2) number of games played by the tigers is 11 + 4 = 15
Percentage of games won is
11/15 × 100 = 73.3%
number of games played by the cubs is 10 + 3 = 13
Percentage of games won is
10/13 × 100 = 76.9%
3) increase in stock price = 61.5 - 52.63 = $8.87
Percentage increase = 8.87/52.63 × 100 = 16.85%
4) if 28 percent of seven graders went
to a movie theater over the weekend and there are 800 students in the seventh grade, then the number of seven graders that saw
the movie is
28/100 × 800 = 224
two cyclists leave towns 210 kilometers apart at the same time and travel toward each other. one cyclist travels 10 km slower than the other. if they meet in 5 hours, what is the rate of each cyclist?
Answers
The faster cyclist's speed is 46 km/hr and the slower cyclist's speed is 36 km/hr.
Let the speed of the faster cyclist be x km/hr. Then the speed of the slower cyclist is x-10 km/hr.
As they are travelling towards each other, their relative speed will be the sum of their speeds. So,
Relative speed = x + (x-10) = 2x - 10 km/hr
Time taken to meet = 5 hours
Distance travelled = relative speed x time taken
210 = (2x-10) x 5
Solving for x, we get x = 46 km/hr (approx.)
Therefore, the faster cyclist's speed is 46 km/hr and the slower cyclist's speed is 36 km/hr.
To solve this problem, we need to use the formula Distance = Speed x Time. Since the two cyclists are travelling towards each other, we need to find their relative speed by adding their speeds. Then we can use the distance and time given to calculate their speeds individually using the formula Speed = Distance / Time.
The faster cyclist is travelling at a speed of 46 km/hr, while the slower cyclist is travelling at a speed of 36 km/hr.
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Proof that :
\( {sin}^{2} \theta + {cos}^{2} \:\theta= 1\)
Thx.
Answers
Answer:
Solution given:
Right angled triangle ABC is drawn where <C=\(\theta\)
we know that
\(\displaystyle Sin\theta=\frac{opposite}{hypotenuse} =\frac{AB}{AC}\)
\(\displaystyle Cos\theta=\frac{adjacent}{hypotenuse}=\frac{BC}{AC} \)
Now
left hand side
\( \displaystyle {sin}^{2} \theta + {cos}^{2} \:\theta\)
Substituting value
\((\frac{AB}{AC})²+(\frac{BC}{AC})²\)
distributing power
\(\frac{AB²}{AC²}+\frac{BC²}{AC²}\)
Taking L.C.M
\(\displaystyle \frac{AB²+BC²}{AC²}\)....[I]
In ∆ABC By using Pythagoras law we get
\(\boxed{\green{\bold{Opposite²+adjacent²=hypotenuse²}}}\)
AB²+BC²=AC²
Substituting value of AB²+BC² in equation [I]
we get
\(\displaystyle \frac{AC²}{AC²}\)
=1
Right hand side
proved![Proof that :[tex] {sin}^{2} \theta + {cos}^{2} \:\theta= 1[/tex]Thx.](https://i5t5.c14.e2-1.dev/h-images-qa/answers/attachments/OZ1iz0U16D5JyVgrze2iYM5q3NQrXnIZ.jpeg)
Use the figure to find the measures of <1 and <2
Answers
Answer:
<1=134 degrees
<2=46 degrees
Step-by-step explanation:
Ans in attachment
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A carousel with a 40-foot radius makes 2 rpms. What is the linear speed of the carousel?
Answers
I believe its
40*2*1/2*pi meters per second
which is just
40pi meters per secondif you need it simplified, its
125.66370meters per secondthe image below shows that about 30 percent of the sun’s energy is reflected and scattered back into space. how would a 50 percent increase in earth’s albedo impact average surface temperatures?
Answers
A 50 percent increase in Earth's albedo, which refers to the reflectivity of its surface, would lead to a decrease in average surface temperatures.
Albedo plays a crucial role in determining how much of the sun's energy is absorbed or reflected by the Earth. The given information states that approximately 30 percent of the sun's energy is currently reflected back into space. If Earth's albedo increases by 50 percent, meaning more energy is reflected, it would result in less energy being absorbed by the Earth's surface and atmosphere.
The increased albedo would cause a higher percentage of the incoming solar radiation to be reflected and scattered back into space. With less energy being absorbed, the average surface temperatures would decrease. This is because less solar energy would be available to warm the Earth's surface and drive atmospheric processes that contribute to temperature regulation. Therefore, a 50 percent increase in Earth's albedo would likely lead to a cooling effect and lower average surface temperatures on our planet.
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