2x+5=? when x is 3 what is the answer
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The percentage of the first quiz passers who also passed the second test is (D) 75%.

To find the percent of those who passed the first quiz also passed the second quiz:

0.6x / 0.8x × 100% =  75%.

Therefore, the percentage of the first quiz passers who also passed the second test is (D) 75%.

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The correct question is given below:

A teacher gave his class two quizzes; 80% of the class passed the first quiz, but only 60% of the class passed both quizzes. What percent of those who passed the first quiz also passed the second quiz? (2 points)

(A) 20%

(B) 40%

(C) 60%

(D) 75%

A z-score of z = -3.00 indicates that the raw score occupies 3 standard deviations below the mean in a distribution.

The correct option is d) 3 standard deviations below the mean.

A z-score is a way of expressing a data point's distance from the mean in standard deviations. It is also known as a standard score or a z-value.

It is used in a wide range of statistical analyses to compare scores on different scales, among other things.

When a z-score is positive, the data point is above the mean, and when it is negative, it is below the mean.

In this situation, a z-score of z = -3.00 indicates that the raw score is three standard deviations below the mean in a distribution.

Therefore, the correct option is d) 3 standard deviations below the mean.

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Answer:

12+y+x+x+x+12+y+x = 24+2y+4x; which is A

Step-by-step explanation:

Answer:

-5

Step-by-step explanation:

The coefficient is the number that goes in front of the variable

The only variable is x and the number in front is -5

The coefficient is -5

Answer:

-5 i did the test

Step-by-step explanation:

Answer:

umef leaf ninja the frog held a

The probability that both runners trained for the race but did not run a personal best time is given as follows:

A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.

The total number of runners for this problem is given as follows:

75.

Of the 46 runners that trained, 18 had a personal best time, hence the number of runners who trained and did not have a personal best time is given as follows:

46 - 18 = 28.

Hence for both runners the probability is given as follows:

p = 28/75 x 27/74

p = 14/25 x 9/37

p = 126/925.

p = 0.136.

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Answer:

x=-1

Step-by-step explanation:

Answer:

10x = 2x -8

-2x -2x

8x = -8

divide by 8

x = -1

The correct option is a) (-7, 3) which is the midpoint of the segment.

To find the midpoint of a segment, we need to use the midpoint formula:

Midpoint = ( \((x1 + x2)/2 , (y1 + y2)/2\) )

The midpoint of a segment is the point that lies exactly halfway between the two endpoints of the segment.

It is calculated using the midpoint formula, which involves finding the average of the x-coordinates and y-coordinates of the endpoints.

Using the coordinates given in the diagram, we can substitute them into the formula:

Midpoint = ( (-9 + 5)/2 , (3 + 3)/2 )

Midpoint = ( (-4)/2 , 6/2 )

Midpoint = ( -2 , 3 )

However, it means that if we were to draw a line segment connecting (-9, 3) and (5, 3), the midpoint would be exactly in the middle of that line.

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Answer:

A

Step-by-step explanation:

Since the time depends on the pages, the answer is time(pages).

Answer:

A

Step-by-step explanation

Because time , book , and number of pages in the book is in the text

Answer:

$1410

Step-by-step explanation:

Hyan has $1240 saved, which is equal to 2/3 of the down-payment, plus an additional $300

$1240-$300= $940

$940 is equal to 2/3 of the payment, in other words, it's two 1/3 payments, so we can split $940 into two to see how much is equal to 1/3 of the payment.

$940/2= $470 = 1/3

Three 1/3 equal 1 whole so we multiply $470 by 3 to find the amount of the whole payment

$470x3= $1410

This question is solved using the concepts of average rate of change and y-intercept.

Doing this, the correct option is:

A: Over the intervals (0,2), The average rate of change of F is greater than that of G. The Y intercept of earth is the same as the Y intercept of G

---------------------------

Average rate of change:

The average rate of change of a function f(x) in an interval [a,b] is given by:

\(A = \frac{f(b) - f(a)}{b - a}\)

y-intercept:

The y-intercept of a function is the value of x when y = 0.

-----------------------------------------

Function f:

When \(x = 0\), \(f(0) = 5^{0} - 4 = 1 - 4 = -3\), that is, the y-intercept is -3.

When \(x = 2\), \(f(2) = 5^2 - 4 = 25 - 4 = 21\)

Thus, the average rate of change is:

\(A = \frac{21 - (-3)}{2 - 0} = \frac{24}{2} = 12\)

Function g:

Looking at the graph, when \(x = 0, g(0) = -3\), that is, the y-intercept is -3.

When \(x = 2, g(2) = 12\).

Thus, the average rate of change is:

\(A = \frac{12 - (-3)}{2 - 0} = \frac{15}{2} = 7.5\)

-----------------------------------

Comparison:

Thus, the correct answer is given by option A.

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Answer:

x=5

Step-by-step explanation:

3/12 and x/20

cross multiply

12x=60

60/12=5

Answer:

Degree 5

Step-by-step explanation:

Given

Degree of f(x) = 3

Degree of g(x) = 5

Required

Degree of 2f(x) + 4g(x)

2f(x) means 2 * f(x)

Since 2 is a constant

Multiplying f(x) by 2 will result in a polynomial with a degree of 3

Hence 2f(x) has a degree of 3

4g(x) means 4 * g(x)

Since 4 is also a constant

Multiplying g(x) by 4 will result in a polynomial with a degree of 5

Hence 4g(x) has a degree of 5

Having said that;

When 2 polynomials of different degrees are added together, the degree of the result will be the higher degree of both polynomials;

This means that;

Adding a polynomial of degree 3 and another of degree 5 will result in a polynomial of degree 5

Answer:

Pretty sure you got it right cause that's what I got...maybe were both wrong ‍♀️

Answer:

36

Step-by-step explanation:

=4+13+19

=17+19

=36

Answer:

Pemdas

Step-by-step explanation:

24/6 = 4

39/3 = 13

4 + 13 + 19 = 36

a.  If we let u = (3 - 2x), then the derivative du/dx would be -2, which is not equal to zero. This indicates that the substitution does not satisfy the requirement for u to be differentiable.

b. Michael's substitution satisfies the requirement for u to be differentiable.

(a) i. Kayla's proposed substitution of u as (3 - 2x) will not work in this case. The reason is that when using the u-substitution method, it is necessary for the chosen u to be differentiable, meaning that its derivative du/dx should exist and be non-zero. However, if we let u = (3 - 2x), then the derivative du/dx would be -2, which is not equal to zero. This indicates that the substitution does not satisfy the requirement for u to be differentiable.

ii. Kayla's idea of always picking the most inside factor as u does not work for all u-substitutions. There can be cases where choosing the most inside factor may not lead to a valid substitution that simplifies the problem or makes integration easier. It is important to consider the properties of the function and choose a suitable substitution accordingly.

(b) i. Michael's proposed substitution of u as 3√3 - 2x will work in this case. If we let u = 3√3 - 2x, then the derivative du/dx would be -2, which is non-zero. Therefore, Michael's substitution satisfies the requirement for u to be differentiable.

ii. Michael's idea of always picking the most complicated factor as u also does not hold true for all u-substitutions. The choice of u depends on various factors, including the structure of the function, simplification possibilities, and making the integration process more manageable. It is not necessarily the case that the most complex factor will always result in a successful substitution.

It is important to consider the specific characteristics of the function and apply appropriate judgment in choosing the substitution u to simplify the problem effectively.

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Answer:

86

Step-by-step explanation:

82+4=86

Answer:

86 candies

Step-by-step explanation:

Just do 82+4= 86 candies

We're required to find the value of angle KTR.

It can easily be seen that angle KTR and angle BTF are vertically opposite angles.

\(\therefore \: \angle \: KTR= \angle \: BTF \: \\ \implies \: 4h + 160 = 3h + 156 \\ grouping \: the \: like \: terms \: at \: either \: sides \\ \implies \: 4h - 3h = 156 - 160 \\ \implies \: \boxed{h = - 4\degree}\)

now ,

\(\angle \: KTR \: = 4h + 160 \\ \implies \: \angle \:KTR \: = 4( - 4) + 160 \\ \implies \: \angle \: KTR \: = - 16 + 160 \\ \implies \:\boxed{ \angle \:KTR = 144\degree}\)

hope helpful! :)

Answer:

Where is the answer choices?

Step-by-step explanation:

Answer:

A, B, D

Step-by-step explanation:

Answer:

The mean is,

C) 68

Step-by-step explanation:

The mean is calculated using the formula,

\(m = (sum \ of \ the \ terms)/(number \ of \ terms)\\\)

Now, there are 6 terms (in this case numbers) so,

we have to divide by 6,

and sum them.

\(m = (57+90+70+68+61+62)/6\\m=408/6\\\\m=68\)

Hence the mean is 68

According to the information, the 95% confidence interval for the proportion of Americans who drink tea daily is approximately (0.2485, 0.2766). The margin of error is approximately 0.0140.

To construct a confidence interval for the proportion of Americans who drink tea daily, we can use the formula:

Where,

p = the sample proportion

Z = the critical value corresponding to the desired confidence level

n = the sample size

Given:

Now, let's calculate the confidence interval and margin of error:

According to the information, the 95% confidence interval for the proportion of Americans who drink tea daily is approximately (0.2485, 0.2766), with a margin of error of approximately 0.0140.

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The linear function that passes through (3,1) and has a slope of -1/2 is defined as follows:

y = -0.5x + 2.5.

The graph of the linear function is given by the image presented at the end of the answer.

The linear function for this problem is defined in slope-intercept format, as follows:

y = mx + b.

In which the coefficients of the function are given as follows:

The slope of the function in this problem is given as follows:

m = -1/2 = -0.5

Hence:

y = -0.5x + b.

The line passing through point (3,1) means that when x = 3, y = 1, and thus the intercept b is obtained as follows:

1 = -0.5(3) + b

1 = -1.5 + b

b = 2.5.

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Answer:

this is super easy...

u first rotate it 90° until the BC is downwards.

then rotate it one round until it comes to the way it was..that means once again BC down...hope it is clear...

About the circle relation C on the set of real numbers:

To determine if circle (C) is reflexive, we need to examine if for every real number x, x C x holds true. By definition of C, this means that for every real number x, x^2 + x^2 = 1.

Now, let's simplify this equation: x^2 + x^2 = 2x^2, so we get 2x^2 = 1. To satisfy this equation, x^2 must equal 1/2. However, there is no real number x for which x^2 = 1/2.

As we cannot find an example of x such that (x, x^2 + x^2) = (x, 1), we conclude that since this does not equal 1, C is not reflexive.

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Answer:

y=1,2 y=2

Step-by-step explanation:

Infer means to guess or reach a conclusion, especially based on an indirect hint.

The passage suggests that the main reason the narrator considers Great Expectations to be the best gift he ever received is that reading the book convinced him that he wanted to be a writer.

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Step-by-step explanation:

2. Given: Angles 1 and 2 are a linear pair. Prove that x = 11 ma m = 11x-6 m2 = 4x+21 Statements Reasons 1) Angles 1 and 2 are a linear pair. 1) Given 2) Angles 1 and 2 are 2) Linear Pair Postulate supplementary 3) mZ1 + m2 = 180° 3) 4) 11x - 6 + 4x + 21 = 180 4) 5) 15x + 15 = 180 5) 6) 15x = 165 6) 7) x = 11 7)

I am not sure about my answer i dont want u to get wrong this is all i know i hope it was helpful