whats the answer to my question

Answer:

b

Step-by-step explanation:

i did the test and I got the answer right here after being corrected so yah.

Answer:

All real numbers

Step-by-step explanation:

Answer:

x=32 hope it helps, if it does can i get 5.0 or brainliest

Step-by-step explanation:

The equation involves both sin²(φ) and cos²(φ), as well as sin²(θ), which indicates that the surface has a more complex shape, possibly involving rotational symmetry.

To identify the surface whose equation is given as ρ²(sin²(φ) sin²(θ) + cos²(φ)) = 81, we can follow these steps:

Rewrite the equation
We have the equation: ρ²(sin²(φ) sin²(θ) + cos²(φ)) = 81

Isolate ρ²
We can rewrite the equation as: ρ² = 81 / (sin²(φ) sin²(θ) + cos²(φ))

Find ρ
Take the square root of both sides to find ρ: ρ = √(81 / (sin²(φ) sin²(θ) + cos²(φ)))

The given equation represents a surface in spherical coordinates (ρ, φ, θ). Since ρ (the radial distance) is expressed in terms of φ and θ, the surface is not a simple sphere or ellipsoid. The equation involves both sin²(φ) and cos²(φ), as well as sin²(θ), which indicates that the surface has a more complex shape, possibly involving rotational symmetry.

However, without further information, it's difficult to provide a specific name for this type of surface.

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In polar coordinates, the radial distance "r" is defined as the distance from the origin to a point in the plane. Since distance cannot be negative, we only consider the positive square root of 3 in the range for this problem. So, the correct range for "r" is 0 ≤ r ≤ √3, and negative square root of 3 is not included because it doesn't represent a valid distance in polar coordinates.

To find the volume of the given solid enclosed by the hyperboloid −x2 − y2 + z2 = 6 and the plane z = 3 using polar coordinates, we need to express the equation of the hyperboloid in terms of polar coordinates.

Substituting x = rcosθ and y = rsinθ, we get:

−r2cos2θ − r2sin2θ + z2 = 6

Simplifying, we get:

z2 = 6 - r2

Since the plane z = 3 intersects the hyperboloid, we have:

3 = √(6 - r2)

Solving for r, we get:

r = √3

Hence, the range for r is 0 ≤ r ≤ √3.

In summary, the negative square root of 3 is not included in the range of r because r represents a distance and cannot be negative. The volume of the solid can be found by integrating the function f(r,θ) = √(6 - r2) over the range 0 ≤ r ≤ √3 and 0 ≤ θ ≤ 2π using polar coordinates. The result will be in cubic units and can be obtained by evaluating the integral.

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Answer: 18² + 15² = 27²

Step-by-step explanation:

The side lengths of the triangle are 15cm, 18cm and 27cm. To know if it's a right angle triangle, the square of the length of the longest side which is the hypothenuse must be equal to the square of the two other sides. This will be:

18² + 15² = 27²

324 + 225 = 729

549 = 729

Since the answers gotten isn't equal, it is not a right angle triangle.

The 19th percentile of x bar is 71.724.

Since the sample size is greater than 30 and the population standard deviation is known, we can use the normal distribution to find the 19th percentile of x bar.

First, we need to find the standard error of the mean (SEM):

SEM = σ/√n = 8/√50 = 1.1314

Next, we need to find the z-score associated with the 19th percentile. We can use a standard normal distribution table or a calculator to find this value, which is approximately -0.877.

Finally, we can use the formula for a confidence interval to find the value of x bar associated with the 19th percentile:

x bar = μ + z*SEM = 73 + (-0.877)*1.1314 = 71.724

Therefore, the 19th percentile of x bar is approximately 71.724.

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Answer:

The slope of the line is -8/5. The graph should be shown below

Step-by-step explanation:

Answer:

(-4,-4)

Step-by-step explanation:

Since y=x,plug in x for y in equation 2

x²+x²=32

2x²=32

x²=16

x=√16=±4

So one solution is (4,4) and another is (-4,-4)

Answer:

i really cant tell you

Step-by-step explanation:

sorry

One strategy that may help Emilio write more fluently is practicing speed writing or shorthand techniques.

Practicing speed writing or shorthand techniques can help Emilio increase his writing speed without sacrificing legibility. Speed writing involves using abbreviations, symbols, and shortcuts to represent words or phrases, allowing for faster transcription of thoughts onto paper.

Shorthand systems, such as Gregg shorthand or Pitman shorthand, provide structured methods for condensing words and phrases into simplified symbols.

By learning and practicing speed writing or shorthand techniques, Emilio can improve his writing efficiency and reduce the time it takes to write a few sentences. This strategy allows him to maintain neatness while increasing his writing speed, enabling him to express his thoughts more fluently.

With regular practice and familiarity, Emilio will become more comfortable with the shorthand system and experience a significant improvement in his writing speed and fluency.

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The solution to all three parts is shown below.

Part A:

For Mountain View School:

Mean = (12+18+19+21+23+24+24+25+25+26+27+28+30)/13 = 23

Median = 24

Mode = 24 and 25

For Bay Side School:

Mean = (5+6+8+10+12+14+15+16+18+20+20+22+23+25+42)/15 = 17.4

Median = 16

Mode = 20

For Mountain View School:

Range = 30-12 = 18

Interquartile Range (IQR) = Q3-Q1 = 27-21 = 6

Variance = [(12-23)² + (18-23)² + ... + (30-23)²]/13 = 32.92

Standard Deviation = √(Variance) = 5.74

For Bay Side School:

Range = 42-5 = 37

Interquartile Range (IQR) = Q3-Q1 = 22-10 = 12

Variance = [(5-17.4)² + (6-17.4)² + ... + (42-17.4)²]/15 = 194.16

Standard Deviation = √(Variance) = 13.93

Part C:

If someone is interested in a larger class size, they should choose Mountain View School as it has a higher mean and median class size compared to Bay Side School.

However, if they also want more variability in class size, they should choose Bay Side School as it has a larger range and standard deviation.

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Answer:

x = 9/2 = 4.5

Step-by-step explanation:

\(4x ^{2} - 81 = 0 \\ 4 {x}^{2} = 0 + 81 \\ 4 {x}^{2} = 81 \\ {x}^{2} = \frac{81}{4} \\ x = \sqrt{ \frac{81}{4} } \\ \boxed{x= \frac{9}{2}} \\ \boxed{x = 4.5}\)

__________

hope this helps!

Answer:

Step-by-step explanation:

Comment

The surface area for a sphere is 4 pi * r^2

Givens

Surface Area X = 1808.64

Surface Area T = 452.16

Solution

Sphere X

Surface Area = 4 pi r^2

Surface Area X = 4 * 3.14

1808.64 = 12.56 * r^2                          Divide both sides by 12.56

1808.64/12.56 = 12.56 r^2/12.56

r^2 = 144                                              Take the square root of both sides

√^2  = √144

r = 12

Sphere T

Surface Area = 4 pi r^2

452.16  = 12.56 r^2                              Divide by 12.56

452.16 / 12.56 = 12.56 r^2/12.56

r^2 = 36                                                Take √ of both sides

√r^2 = √36

r = 6

Conclusion

radius x: radius T :: 12/6

radius x: radius T :: 2/1    

Answer:

420/30=14 beats per second, meanin 1680 beats is your answer.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The cost of the paint set is $14

Let:

$29.25 = p + 3/4p + 1/8p +  3

$29.25 - $3 = p + 3/4p + 1/8p

$26.25 = 15/8p

p = (26.25 x 8) / 15

p = $14

Here is the complete question:

Matt brought $29.25 to the art supply store. He bought a brush, a sketchbook, and a paint set.

The brush was 1/6 as much as the sketchbook, and the sketchbook cost 3/4 the cost of the paint set.

Matt had $3.00 left over after buying these items. What is the cost of the paint set?

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Answer: 4 books

Step-by-step explanation:

x = minimum number of book

Leslee

= 3x (bought 3 times the minimum)

Denise

= x + 7 (bought 7 more than the minimum)

Together

= (3x) + (x + 7)

(3x) + (x + 7) = 23 (books they bought together)

3x + x + 7 = 23

3x + x = 23 - 7 (isolate the like variables together)

4x = 16 (divide both sides by 4)

x = 4

4 is the minimum number of books

To check:

3(4) + (4+7)

12 + 11 = 23

Answer:

125% correct

3/5 correct

2/3 correct

Step-by-step explanation:

Here, we want to pick the appropriate conversion from percentage to fraction:

To convert from percentage to fraction, we simply divide by 100

125% = 125/100 = 1.25 correct

30% = 30/100 = 0.3 not 0.03 wrong

1% = 1/100 = 0.01 not 0.001 wrong

60% = 60/100 = 3/5 correct

50% = 50/100 = 1/2 not 1/4 wrong

2/3 = 2/3 * 100 = 200/3 = 66.66667% correct

Answer:

B.C,D

Step-by-step explanation:

Answer:

first thing: 1/2=2/4

then we change -3/4+1/2 to -3/4+2/4 (it's the same thing)

then it's gonna be -3+2/4

answer= -1/4

The court's action of taking judicial notice that it is impossible to travel from New York to Tampa without crossing a state line has the effect of establishing a fact without requiring formal proof during the trial.

Judicial notice is a legal doctrine that allows a court to accept certain facts as true without requiring formal evidence or proof. In this case, the court has taken judicial notice of the fact that it is impossible to travel from New York to Tampa without crossing a state line. By doing so, the court treats this fact as common knowledge that does not need to be proven during the trial. This means that the prosecutor does not have to provide specific evidence or arguments to establish the element of crossing state lines, as it is considered an indisputable fact in this particular case. The court's action simplifies the proceedings by accepting this fact without requiring further substantiation.

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volume= 16/3, A coordinate plane is a graphing and description system for points and lines. A vertical (y) axis and a horizontal (x) axis make up the coordinate plane. There are four quadrants in the coordinate plane. The point where these lines connect is called the origin (0, 0).

limits

z= 0 to z = 4-y-2x

y= 0 to y = 4- 2x

x= 0 to x= 2

volume

v= \(\int\limits^2_0 \int\limits^4_0 \int\limits^4_0 dzdydx\)

v= \(\int\limits^2_0 \int\limits^4_0 (4-y-2x) dydx\)

v= \(\int\limits^2_0 ( 4y- y^{2} / 2 - 2xy) ^4^-^2^x _0\)

dx= \(\int\limits^2_0 [ 16-8x - 16+ 4x^2 - 16x / 2 - 8x+ 4x^2 ] dx\)

v= \(\int\limits^2_0 [ 8+ 2x^2- 8x] dx\\\)

= [ 8x + 2x^3 / 3 - 8x^2 / 2 ] ^2_0

= [16+ 16/3- 16]

v= 16/3

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Complete Question

Question: Sketch The Tetrahedron Enclosed By The Coordinate Planes And The Plane 2x+Y+Z=4. Use A Triple Integral To Find The Volume Of The tetrahedron

Answer:

m= -3

Step-by-step explanation:

You should do m = -1 - 2 x 1 - 0 which equals m = -3

In order to solve separable equation "dM/dt = a - k₁M", the first thing  students did was to (d) move all terms with M to the left, and all terms with t to the right.

In the separable differential equation dM/dt = a - k₁M, the goal is to rearrange the equation so that all terms involving M are on one side and all terms involving t are on the other side. This allows for the separation of variables, which is a common approach to solving separable equations.

By moving all terms with M to the left and all terms with t to the right, we obtain dM/(a - k₁M) = dt. This rearrangement is essential as it separates the variables M and t.

After this rearrangement, we integrate both sides separately. Integrating the left-hand side with respect to M and the right-hand side with respect to t allows us to find the antiderivatives and solve the equation. This results in the solution of the separable differential equation.

Therefore, the correct option is (d).

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The given question is incomplete, the complete question is

To solve the separable equation dM/dt = a - k₁M, the first thing the students did was to

(a) integrate both sides with respect to M.

(b) integrate both sides with respect to t.

(c) differentiate the left hand side and then integrate the right hand side.

(d) move all terms with M to the left, and all terms with t to the right.

I'm sorry but i can't help with this BUT i can give you a graph calculator

You can use Desmos graphing calculator to plot the inequality (y\ge-x^2-1).

h t t p s : / /w w w . d e s m o s. c o m / c a l c u l a t o r

Answer:

n=6

Step-by-step explanation:

factor 20 out of 20cx*3 =540y*3

so you get 20(cx*3=540y*3) if that is what you are looking for

Answer:

A. {x| –4 < x ≤ 4}

Step-by-step explanation:

Answer:

{x| –4 < x ≤ 4}

Step-by-step explanation:

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