Describe the surface whose equation in cylindrical coordinates is x - 4r
Cylinder with vertical axis Sphere Cylinder with horizontal axis Cone or half-cone with vertical axis Vertical plane or half plane Horizontal plane or half-plane Paraboloid Cone or half-cone with horizontal axis

Answer:

37

Step-by-step explanation:

Answer:

37

Step-by-step explanation:

You can use absolute value to solve this. l-12l+l25l=12+25=37

Absolute value is the distance from 0.

Answer:

<BCE=76

Step-by-step explanation:

<BCD-<ECD=<BCE

147-71=76

Answer:

Undefined

Step-by-step explanation:

The recursive definition of the arithmetic sequence -34, -21, -8 is:

It is a sequence of values in which the difference between consecutive terms is constant and is called common difference d.

The nth term of an arithmetic sequence is given by the rule presented as follows:

\(a_n = a_1 + (n - 1)d\)

In which \(a_1\) is the first term of the sequence.

An arithmetic sequence can also be defined recursively, as follows:

In this problem, the sequence is given as follows:

-34, -21, -8.

Hence the first term and the common ratio are given as follows:

Hence the recursive definition of the sequence is:

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A two-tailed test seeks evidence that the population parameter for sample (1) is either greater than or less than the population parameter for sample (2).

For a two-sample hypothesis which tests for differences in population parameters (1) and (2), a two-tailed test seeks evidence that there is a significant difference between the means of the two populations, regardless of the direction of the difference.

In other words, the null hypothesis is that there is no difference between the two population means, and the alternative hypothesis is that there is a difference between them, either in the positive or negative direction.

The two-tailed test is used when we do not have any prior knowledge about the direction of the difference and want to be able to detect any significant difference, whether it is positive or negative.

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Answer:

A = $20,940

Step-by-step explanation:

Interest = Principal x Rate x Time

I = prt

I = 15000(.018)(22)

I = 5940

Interest = $5,940

Total Amount = Principal + Interest

A = P + I

A = 15000 + 5940

A = 20940

Answer: 1110

Step-by-step explanation:

Answer:

1,110

Step-by-step explanation:

1. Multiply to the powers(?)

10 x 10 x 10 = 1000

10 x 10 = 100

10 = 10

2. Add

1000 + 100 + 10 = 1110

The zeros at the end of a number can be significant if it contains decimal point only if the digit next to or at the end of the number (of decimal point) is a significant number.

Significant numbers of a given number are those digits that can convey the meaning of the number or what it stands for (measures as) according to its accuracy.

All non-zero numbers are significant numbers irrespective of the fact where they are positioned, that is they can be positioned before or after a decimal (also before or after a zero).

All zeros are not significant numbers and whetehr they are to be called significant numbers or depend on the fact where they are positioned and whether they convey any meaning (or value ) of the number. If the zeros are between two non zero significant digits then zero is also considered as a significant number.

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Answer:

A) 365 + d > 635; d > 270 hope this helps :)

Answer:

41.54 mph

Step-by-step explanation:

you need to find the total distanceand total time to find the average speed

use distance/time = speed equation

time = 1.5 hours + 40 mins = 2 hours 10 mins

distance= 20 + 70 = 90 miles

90/130 mins x 60 = 41.54 mph

Answer:

the tax is 27

Step-by-step explanation:

Answer:

450 x 0.06 = 27. Tax is $27.

Step-by-step explanation:

The True Statement is

A. If P'Q'R'S' is formed by translating PQRS 4 units to the right and 5 units down, then PQRS is not necessarily equal to P'Q'R'S'.

Translation is a rigid transformation that preserves the shape and size of the original figure but may change its position.

B. If P'Q'R'S' is formed by reflecting PQRS over the x-axis and then over the y-axis, then PQRS is not necessarily equal to P'Q'R'S'.

Double reflection over perpendicular lines is equivalent to a 180-degree rotation, which may change the orientation of the original figure.

C. If P'Q'R'S' is formed by rotating PQRS 60° about the origin, then PQRS is not necessarily equal to P'Q'R'S'.

Rotation preserves the shape and size of the original figure but changes its orientation and position.

D. If P'Q'R'S' is formed by rotating PQRS 90° clockwise about point Q, and P"Q"R"S" is formed by rotating P'Q'R'S 270° counterclockwise, then PQRS = P"Q"R"S".

The total rotation is equivalent to a 180-degree rotation about point Q, which preserves the shape and size of the original figure.

E. If P'Q'R'S' is formed by reflecting PQRS over the line y=x and P"Q"R"S" is formed by rotating P'Q'R'S 90° clockwise, then PQRS = P"Q"R"S". Reflecting over the line y=x is equivalent to a 90-degree counterclockwise rotation, so the two transformations cancel each other out, and the resulting figure is congruent to the original.

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(a) Since I cannot draw boxplots in text, I recommend using a boxplot tool, such as a graphing calculator, Excel, or an online boxplot generator. Input the data for each brand and create side-by-side boxplots, labeling them "N" for the name brand and "S" for the store brand.

(b) To determine if there is a difference in the number of chips per cookie between the two brands, compare the median values, the range, and the interquartile range of each brand's boxplot. If these values differ significantly, then there is a difference in the number of chips per cookie between the two brands.

(c) To determine which brand has a more consistent number of chips per cookie, compare the interquartile ranges (IQR) of each brand's boxplot. The brand with the smaller IQR has a more consistent number of chips per cookie, as the IQR measures the spread of the middle 50% of the data.

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If the standard deviation of a set of data is 6, then the value of variance is 36

The formula for determining variance is variance = √Standard deviation

Variance of a set of data is equal to square of the standard deviation.

If the standard deviation of a set of data is 6 then we get variance by putting the value of standard deviation in the formula

variance = √Standard deviation

Take square root on both sides

Standard deviation² = 6²

Standard deviation= 36

Hence,  standard deviation of a set of data is 6, then the value of variance is 36

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Answer:

  +4.5 feet

Step-by-step explanation:

The change in level is computed by subtracting the beginning level from the ending level.

  change = ending - beginning

  change = (6 ft) - (1.5 ft)

  change = 4.5 ft

The change in level from 7 pm to 8 am was +4.5 feet.

The equivalent expression of this 19 - 6(-k + 4) will be 6k + 5.

Given that:

Expression, 19 - 6(-k + 4)

The equivalent is the expression that is in different forms but is equal to the same value.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less complicated.

Simplify the expression, then we have

⇒ 19 - 6(-k + 4)

⇒ 19 + 6k - 24

⇒ 6k - 5

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Answer:

it's 3/10

Step-by-step explanation:

you would have to multiply all of those fraction so:

3/4 x 4/5 x 1/2=  3/10

i am so so sorry if i am wrong

Answer:

DE = 1.2

Explanation:

4 / 2.4 = 1.666666667

2 / 1.666666667 = 1.2

Answer:

a)  DE = 1.2 units

b)  AC = 5 units

Step-by-step explanation:

If two triangles are similar, their corresponding angles are the same size and their corresponding sides are in the same ratio.

Therefore, if triangle ABC is similar to triangle DEF then their corresponding sides are in the same ratio:

\(\implies \dfrac{AB}{DE}=\dfrac{BC}{EF}=\dfrac{AC}{DF}\)

From inspection of the given diagram::

Therefore:

\(\implies \dfrac{2}{DE}=\dfrac{4}{2.4}=\dfrac{AC}{3}\)

a)  To find the length of segment DE:

\(\implies \dfrac{2}{DE}=\dfrac{4}{2.4}\)

\(\implies 2 \times 2.4 = 4 \times DE\)

\(\implies 4.8=4DE\)

\(\implies DE=\dfrac{4.8}{4}\)

\(\implies DE=1.2\; \sf units\)

b)  To find the length of segment AC:

\(\implies\dfrac{4}{2.4}=\dfrac{AC}{3}\)

\(\implies 4 \times 3=2.4 \times AC\)

\(\implies 12=2.4AC\)

\(\implies AC=\dfrac{12}{2.4}\)

\(\implies AC=5\; \sf units\)

Answer:

90 degrees

Step-by-step explanation:

the centre angle of the triangle is 180°.
ABC is its circumference angle, that is half the centre one

Answer:

elmo is 3 right now

Step-by-step explanation:

5x -4 = 3x+2

2x= 6

x= 3

Answer:

D:2^5/12 or 1.33483...

Step-by-step explanation:

Hope This Helps!

Answer:

I am sorry I don't Understand!

Sorry I couldn't help!

Step-by-step explanation:

Answer:

y = 9

Step-by-step explanation:

y - 11 = 25 - 3y

y + 3y = 25 + 11

4y = 36

y = 9

Please mark me the brainliest!?!

Answer:

The interval estimate is:

41.5 - 2.45 ≤ true average time ≤ 41.5 + 2.45

or

38.05 ≤ true average time ≤ 44.95

Inequality notation:

[38.05, 44.95]

The interval estimate that will estimate the true average time that people spend brushing their teeth is [39.05, 43.95] seconds.

Given that the mean time spent brushing teeth from the sample is 41.5 seconds, and the margin of error is 2.45 seconds, we can construct a confidence interval estimate using the formula:

(sample mean) ± (margin of error)

Substituting the given values, we get:

41.5 ± 2.45

Simplifying, we get:

[39.05, 43.95]

Therefore, we can be 95% confident that the true average time that all people spend brushing their teeth falls within this interval.

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The possible error in the calculated surface area of the cylinder is approximately 8π square cm.

To estimate the possible error in the calculated surface area of the cylinder, we can use differentials. The formula for the surface area of a cylinder is given by:

S = 2πrh + 2πr²

where r is the radius and h is the height of the cylinder.

Let's find the differential expression for the surface area, dS, in terms of the differentials dr and dh:

dS = (∂S/∂r)dr + (∂S/∂h)dh

To calculate the partial derivatives (∂S/∂r) and (∂S/∂h), we differentiate the surface area formula with respect to r and h, respectively:

(∂S/∂r) = 2πh + 4πr
(∂S/∂h) = 2πr

Now we can substitute the given measurements and errors into the differential expression:

dr = 0.1 cm (error in radius)
dh = 0.2 cm (error in height)
r = 7 cm (radius)
h = 12 cm (height)

dS = (2πh + 4πr)dr + (2πr)dh
  = (2π(12) + 4π(7))(0.1) + (2π(7))(0.2)
  = (24π + 28π)(0.1) + 14π(0.2)
  = (52π)(0.1) + (2.8π)
  = 5.2π + 2.8π
  = 8π

Therefore, the possible error in the calculated surface area of the cylinder is approximately 8π square cm.

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We can apply the ratio test to determine the convergence of the series.

Using the ratio test, we have:

lim n→∞ |b(n+1)/b(n)| = lim n→∞ |9a(n+1)/a(n)|

Since |(a(n+1)/a(n))| converges to rho = 1/8, we have:

lim n→∞ |b(n+1)/b(n)| = lim n→∞ |9a(n+1)/a(n)| = 9rho = 9/8

If lim n→∞ |b(n+1)/b(n)| < 1, then the series ∑n=1[infinity]bn converges absolutely. If lim n→∞ |b(n+1)/b(n)| > 1, then the series diverges. If lim n→∞ |b(n+1)/b(n)| = 1, then the test is inconclusive.

Since 9/8 > 1, the series ∑n=1[infinity]9nan diverges by the ratio test. Therefore, the answer is (B) divergent

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Answer:

(6,12)

Step-by-step explanation:

Use the mid point formula to find the answer. Add the first x value to the second and divide by two for your x midpoint, then add the first y value to the second y value and divide by two for your y midpoint.

Answer:

12

Step-by-step explanation:

To find unit rate, you divide 72 by 6.

72/6=12.

So, there are 12 muffins per tray.

-hope it helps

The correlation coefficient, r, that indicates a strong, but not perfect, linear relationship between the two variables are r = -0.85 and  R = 0.90.

The correlation coefficient, r, calculates the strength and movement of the linear relationship between the two variables. It ranges from -1 to 1. Here -1 implies a perfect negative linear relationship, 0 implies no linear relationship, and 1 implies a perfect positive linear relationship.

A strong correlation should be close to -1 or 1 but not an equal value. In the given options strong, but not perfect, linear variables are r = -0.85 and 0.90 are closer to the r values.

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Answer:

d or c

Step-by-step explanation:

Answer:

2,380 calories

Step-by-step explanation:

Given:

Proportions - %/100

__________________________________________________________

15/100 = x/2800

x = 420 = 15%

__________________________________________________________

2800 - 420 = 2,380

~Silver