-3r and -3s are like terms
True
False

Answer:

1.8 pounds

Step-by-step explanation:

Answer:

60 Degree,30 degree

Step-by-step explanation:

BD is bisector of ∠ABC

=> ∠ABD = ∠DBC

=> 3x = x + 20

=> 3x - x = 20

=> 2x = 20

=> x = 20/2  

=> x = 10

Now,

∠ABD = ∠DBC = x + 20 = 10 + 20 = 30 Degree

∠ABC = ∠ABD+∠DBC = 30+30 = 60 Degree

The reliability of the given system is 0.4033.

To calculate the reliability of a system, we need to multiply the reliability values of all the components in the system. In this case, we have a system composed of three components with the following reliability values:

Component 1: 0.90

Component 2: 0.90 0.90 0.85

Component 3: 0.85 0.85 0.92

To find the overall system reliability, we multiply these values together:

System reliability = Component 1 reliability x Component 2 reliability x Component 3 reliability

System reliability = 0.90 x (0.90 x 0.90 x 0.85) x (0.85 x 0.85 *x 0.92)

System reliability ≈ 0.90 x 0.6831 x 0.6528 ≈ 0.4033

Therefore, the reliability of the given system is 0.4033.

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Given:-

\( \: \)

\( \: \)

To find:-

\( \: \)

By using formula:-

\( {\color{hotpink}\bigstar} {\boxed{\sf {\green{ slope : m = \: \frac{y_2 - y_1}{x_2 - x_1} }}}}\)

Solution:-

\( \sf \: m = \frac{y_2 - y_1}{x_2 - x_1} \)

\( \: \)

where ,

\( \: \)

\( \: \)

\( \sf \: m = \frac{( -2 ) - ( -3 ) }{1 - 2} \)

\( \: \)

\( \sf \: m = \frac{ - 2 + 3}{ \: 1 - 2} \)

\( \: \)

\( \sf \: m = \cancel \frac{1}{ - 1} \)

\( \: \)

\( \underline{\boxed{ \sf{ \blue{ \: m = -1 \: }}}}\)

\( \: \)

━━━━━━━━━━━━━━━━━━━━━━━

hope it helps:)

Height can have an influence on a tennis player's serve speed, as taller players often have a longer reach and can generate more power. Generally, taller players tend to have the potential for faster serves compared to shorter players.

The correlation between height and fastest serve speed can be determined through statistical analysis of data from professional tennis players. A positive correlation indicates that as height increases, the fastest serve speed also tends to increase. The correlation coefficient quantifies the strength and direction of this relationship. A value of +1 indicates a perfect positive correlation, 0 indicates no correlation, and -1 indicates a perfect negative correlation.

However, it's important to note that individual variations exist, and there are many other factors that contribute to serve speed, such as technique, strength, and timing. While height may have a correlation with serve speed at a population level, it may not be a reliable predictor for an individual player's serve speed.

To obtain a reliable prediction of the fastest serve speed for a professional tennis player, it is necessary to consider a wide range of factors, including their technique, physical fitness, training, and previous performance data.

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To determine the minimum sample size required when you want to be 90% confident that the sample mean is within one unit of the population mean, we can use the formula:

n = [Z*(σ/√n)]^2

where n is the sample size, Z is the Z-score corresponding to the confidence level (90% in this case), σ is the population standard deviation, and √n is the square root of the sample size.

Substituting the given values, we get:

n = [1.645*(12.2/√n)]^2

Simplifying this equation, we get:

n = 22.99

Since we can't have a fractional number of people in a sample, we round up the result to get:

n = 23

Therefore, a sample size of at least 23 is required to be 90% confident that the sample mean is within one unit of the population mean when σ=12.2 and assuming a normal distribution of the population.

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Answer:

Twelve percent.

Step-by-step explanation:

6:50 x 2 = 12:100 or 12%. Hope this helps!

Answer:

The answer is

Step-by-step explanation:

-31p+79 > -59p+81

Group like terms

Send the constants to the right side of the expression and those with variables to the left side

That's

- 31p + 59p > 81 - 79

Simplify

We have

28p > 2

Divide both sides by 28

We have the final answer as

Hope this helps you

Answer:

x+4/x+1

Step-by-step explanation:

hope this can help you :)

Answer:

\(\frac{x+4}{x+1}\)

Step-by-step explanation:

Given

\(\frac{x^2-16}{x^2-3x-4}\) ← factor numerator/ denominator

= \(\frac{(x-4)(x+4)}{(x-4)(x+1)}\) ← cancel the factor (x - 4) on numerator/ denominator

= \(\frac{x+4}{x+1}\)

Answer:

288.4

Step-by-step explanation:

v=pi r^2 H

Answer:

I think answer is 288.4 plz mark me brainlist

Answer:

a) 5.2 cm

b) 296.38 cm²

Step-by-step explanation:

a) Encontrar la apotema

La fórmula se da como:

A = s / 2 bronceado (180 / n)

s = Largo del lado = 6cm

n = Número de lados = 6 porque el polígono es un hexágono

Por eso,

Apotema = 6/2 × bronceado (180/6)

= 6/2 × tan 30

= 5.1961524227cm

Aproximadamente = 5.2 cm

Apotema = altura de las caras triangulares = 5.2cm

b) Superficie total

Área de superficie de una pirámide hexagonal = 3√3 / 2b² + 3b√h² + 3b² / 4

b es la longitud de la base. = 6cm

s es la altura inclinada. = 10cm

3√3 / 2 × 6² + 3 × 6√10² + 3 × 6² / 4

A = 296.38 cm²

Answer:

120

Step-by-step explanation:

there are three sides, they have to equal 360 degrees so 360/3 = 120, you got it right.

Answer:

Find the value of t0.05 for a t-distribution with 9 degrees of freedom. round your answer to three decimal places, if necessary.

Step-by-step explanation:

Find the value of t0.05 for a t-distribution with 9 degrees of freedom. round your answer to three decimal places, if necessary.

Answer:

Jill had $250 in her paycheck

Step-by-step explanation:

150+12.49+28.89+12.95

+44.67=249 technically not 250 but its the closest answer.

Answer: Krista's  drawing would have a base length of 2 and 1/4 inches and a height of 7/8 inches

Step-by-step explanation: First you do 6 divided by 3 which is 2 then you make 3/4 in twelfths and you get 3/12, then you simplify that into 1/4. Then

you combine those and get a base length of 2 and 1/4 inches.

Next, you do 2 and 5/8 divided by 3. Since 3 is less than 2 your answer would have to be less than 1. What i would do is make 2 and 5/8 into a fraction, which would be 21/8. then to make it easiest you multiply that by 1/3. which would equal 21/24. and then you simplify by dividing that by 3. Which would give you 7/8, which would give you your answer.

So the final answer would be a base length of 2 and 1/4 inches and a height of 7/8 inches.

The time-varying magnetic field vector B1,rot(t) can be calculated and sketched using the given expression for B1(t). It is a rotating magnetic field with a sinusoidal variation in both the x and y components.

The given expression for B1(t) is B1 cos(ωrf t + π/4) i - B1 sin(ωrf t + π/4) j, where B1 is the magnitude of the magnetic field, ωrf is the angular frequency, t is time, and i and j are unit vectors in the x and y directions, respectively.

To find B1,rot(t), we can rewrite the expression using trigonometric identities. Using the angle addition identity, we have:

B1 cos(ωrf t + π/4) i - B1 sin(ωrf t + π/4) j

= B1(cos(ωrf t) cos(π/4) - sin(ωrf t) sin(π/4)) i - B1(sin(ωrf t) cos(π/4) + cos(ωrf t) sin(π/4)) j

= (B1/√2)(cos(ωrf t) - sin(ωrf t)) i - (B1/√2)(sin(ωrf t) + cos(ωrf t)) j

This expression represents B1,rot(t) in terms of the x and y components. The x component, (B1/√2)(cos(ωrf t) - sin(ωrf t)), represents the variation of the magnetic field in the x-direction, and the y component, -(B1/√2)(sin(ωrf t) + cos(ωrf t)), represents the variation in the y-direction. The magnitude of B1,rot(t) remains constant at B1/√2, and it rotates in the xy-plane with an angular frequency of ωrf.

Sketching B1,rot(t) involves plotting the x and y components separately against time, or plotting the resulting vector at different points in time. The vector will trace out an elliptical path in the xy-plane due to the sinusoidal variations in both components.

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The answer that describes the polygon RSTU is as follows:

A quadrilateral is a polygon with 4 sides. Therefore, let's use the properties to find the name of the shape  RSTU as follows:

The polygon has 4 sides therefore, it is a quadrilateral.

The quadrilateral has opposite side parallel to each other. The opposite sides are RS and TU.

A trapezoid is a quadrilateral with only one pair of opposite side parallel to each other.

Therefore, the shapes that defines the polygon are as follows:

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Answer:

  2820 no votes

Step-by-step explanation:

The fraction of votes that were 'no' is ...

  no/total = (5)/(8+5) = 5/13

The number of votes that were 'no' is ...

  (5/13)(7332) = 2820 . . . no votes

The equation of line passing through the point (4,5) and has a slope of 0 is y = 5

Slope is the ratio of the change in the y-coordinate to the change in the x-coordinate.

It used to know how steep a line is.

Slope can be negative or positive or zero depending on how the line or curve appears.

if the line passes through a point with a slope of 0, it means the line is either vertical or horizontal.

equation of line passing through a point with a slope is

y - \(y_{1}\) / x - \(x_{1}\) = slope

y - 5/x --4 = 0

y - 5/x + 4 = 0

by cross multiplying,

y - 5 = 0( x + 4)

y - 5 = 0

y = 5

In conclusion, the equation of line is y = 5

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Answer:

y = -5/6x + 3

Step-by-step explanation:

Answer:

We're given a least-squares regression equation that we can use to predict weight (in kilograms) from a given length (in centimeters). The question asks to predict the weight of a fish that is 70cm long, so let's plug in 70 for "length" and solve for the predicted weight: logweight = 3.08  (log length) -5.07

(logweight) 3.08 (log 70) - 5.07

(logweight) ≈ 3.08 (1.84) - 5.07

log weight ≈ 0.613

Next, we use the fact that these are base 10 logarithms and the definition of a logarithm to solve for the predicted weight:

log₁₀ (weight) ≈ 0.613

Taking logarithms on both sides

weight ≈ 10₀.₆₁₃

weight ≈ 4.1

According to this model, the predicted weight for a 70 cm long Florida bass is about 4.1kg.

​

The histogram provides a visual representation of the distribution of the data.

   Frequency

      |

10 | x x x x

11  | x x

12 | x x x x x x x

13 | x

14 | x x x x

15 | x x

      -  -  -  -  -

     0 1 2 3 4

First, let's determine the frequency for each leaf value:

Stem 10 has leaves 1, 5, 6, and 8, so the frequency for each leaf value is 1, 1, 1, and 1, respectively.

Stem 11 has leaves 1, 5, and 7, so the frequency for each leaf value is 1, 1, and 1.

Stem 12 has leaves 3, 6, 8 (three times), and 9 (two times), so the frequency for each leaf value is 1, 1, 3, 3, and 3.

Stem 13 has leaf 2, so the frequency is 1.

Stem 14 has leaves 4, 5, 7 (two times), and 8, so the frequency for each leaf value is 1, 1, 2, and 2.

Stem 15 has leaves 2, 6, and 9, so the frequency for each leaf value is 1, 1, and 1.

Now, we can plot the histogram. The x-axis represents the stems (10, 11, 12, 13, 14, and 15), and the y-axis represents the frequency of the leaves:

In this histogram, the height of the bars represents the frequency of each stem-leaf combination. For example, the stem-leaf combination "12-8" has a frequency of 3, so the bar above the stem 12 is three units high.

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The critical values for this test are -2.201 and 2.201. If your test statistic falls outside this range, you would reject the nullSo, the critical values for this test are -2.201 and 2.201. If your test statistic falls outside this range, you would reject the null hypothesis in favor of the alternative hypothesis (H1: μ ≠ μ0). in favor of the alternative hypothesis (H1: μ ≠ μ0).

To determine the critical values for a two-tailed test with a sample size of n = 12 and a significance level of α = 0.05, we need to consult a t-distribution table.

First, we need to find the degrees of freedom, which is equal to n - 1 = 12 - 1 = 11.

Next, we look up the t-value for a two-tailed test with a 0.025 level of significance (0.05/2) and 11 degrees of freedom. From the t-distribution table, we find that the t-value is 2.201.

Therefore, the critical values for a two-tailed test of a population mean at the α = 0.05 level of significance based on a sample size of n = 12 are -2.201 and +2.201.

This means that if our calculated t-value falls outside of this range, we can reject the null hypothesis (H0: μ = μ0) in favor of the alternative hypothesis (H1: μ ≠ μ0) at the 0.05 level of significance.

To determine the critical values for a two-tailed test of a population mean at the α = 0.05 level of significance with a sample size of n = 12, you'll need to use a t-distribution table.

Since it's a two-tailed test, you'll need to find the t-score that corresponds to α/2, which is 0.025 in each tail. With a sample size of 12, you have 11 degrees of freedom (df = n - 1).

Looking up the t-distribution table with df = 11 and α/2 = 0.025, you'll find the critical t-value to be approximately ±2.201.

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Answer:

0.025

Step-by-step explanation:

Answer:

0.029

Step-by-step explanation:

1 milligram is equivalent to 0.001 grams, so 29*0.001=0.029.

Answer:

105

Step-by-step explanation:

900 degrees in a heptagon

Answer:

$18

Step-by-step explanation:

1 pound of raisins = $2

1 pound of almonds = $5

Let the number of raisins be represented by a

Let the number of almonds be represented by b

We are told in the question that:

Six pounds of a trail mix contains 2 more pounds of raisins than almonds.

a + b = 6 pounds

Hence, Almonds = 2 pounds

Raisins = 4 pounds

The cost of the 6 pounds of trail mix

= 4 × $2 + 2 × $5

=$8 + $10

= $18

If Ellen's dog has a pen that is \(3^{2}\) feet by \(3^{3}\) feet, then the area of the dog pen is 243 square feet

Here the Ellen's dog pen is in rectangular shape

The area of the rectangle = l × w

Where l is the length of the rectangle

w is the width of the rectangle

In this question

The length of the rectangle =  \(3^{2}\) feet

= 3×3

= 9 feet

The width of the rectangle =  \(3^{3}\) feet

= 3×3×3

= 27 feet

Then the area of the dog pen = l × w

Substitute the values in the equation

The area of the dog pen = 9×27

= 243 square feet

Hence, if Ellen's dog has a pen that is \(3^{2}\) feet by \(3^{3}\) feet, then the area of the dog pen is 243 square feet

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Sum
        243
I found it on edge

Answer:

<C = 54 degrees

b = 123.6

a = 72.6

Step-by-step explanation:

<C = 180 - 90 - 36 = 54 degrees

b = 100/sin54 = 123.6

a = sqrt (123.6^2 - 100^2) = 72.6

Answer:

Answer in the photo

Step-by-step explanation:

Hope this helps x :)