Hello!, All I wanted to ask was what is the answer to this question “Evaluate 9 + 7 x 5”
AND what does Evaluate mean?

Answer:

A=2πrh+2πr2

Step-by-step explanation:youre welcome

Step-by-step explanation:

πr^2+2πrh

(r= radius, h= height)

Answer:

5.20

Step-by-step explanation:

I took a test and that was the answer

Answer:

simplified equation is -4+x

x=4

Step-by-step explanation:

-4+x=0

+4

x=4

Answer:

x-4

Step-by-step explanation:

1. Rearrange terms : −(4−x)  −(−+4)  Then Distribute the negative: −(−+4)   1−4

Multiply by 1: 1−4   so x-4  

Hope this helps !

Answer: Scatter Plot 2

Step-by-step explanation: Usually with graphs like this, anything relative to time (age) will be on the x axis because the text messages depends on the age. This immediately knocks out number 1. Then you just have to start graphing points on the scatter plot and whichever one lines up best, which happens to be #2, is the correct answer.

Hope this helps.

The volume of the figure is approximately 1591.63 cm³.

We have,

To find the volume of the figure with a semicircle on top of a cone, we can break it down into two parts: the volume of the cone and the volume of the semicircle.

The volume of the Cone:

The formula for the volume of a cone is V = (1/3)πr²h, where r is the radius of the base and h is the height of the cone.

Given that the diameter of the cone is 14 cm, the radius (r) is half of the diameter, which is 7 cm.

The height (h) of the cone is 17 cm.

Plugging the values into the formula, we have:

V_cone = (1/3)π(7 cm)²(17 cm)

V_cone = (1/3)π(49 cm²)(17 cm)

V_cone = (1/3)π(833 cm³)

V_cone ≈ 872.67 cm³ (rounded to two decimal places)

The volume of the Semicircle:

The formula for the volume of a sphere is V = (2/3)πr³, where r is the radius of the sphere. In this case, since we have a semicircle, the radius is half of the diameter of the base.

Given that the diameter of the cone is 14 cm, the radius (r) of the semicircle is half of that, which is 7 cm.

Plugging the value into the formula, we have:

V_semicircle = (2/3)π(7 cm)³

V_semicircle = (2/3)π(343 cm³)

V_semicircle ≈ 718.96 cm³ (rounded to two decimal places)

Total Volume:

To find the total volume, we add the volume of the cone and the volume of the semicircle:

V_total = V_cone + V_semicircle

V_total ≈ 872.67 cm³ + 718.96 cm³

V_total ≈ 1591.63 cm³ (rounded to two decimal places)

Therefore,

The volume of the figure is approximately 1591.63 cm³.

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The correct answer is C. open parenthesis negative infinity, -4 close parenthesis union open parenthesis -2, infinity close parenthesis.

Based on the description of the graphs of f(x) and g(x), the intervals in which both functions are increasing can be determined.

For function f(x), it is stated that it increases from the left, passes through (-5, -4), reaches a local maximum at (-4, 0), goes back down through (-3, -2) to a local minimum at (-2, -4), and then goes back up through (-1, 0) to the right.

For function g(x), it is mentioned that one piece of the rational function increases from the left in quadrant 2, passing through (-6, 2) and (-3, 5), and asymptotically approaches the line y = 1.

Another piece of the function is asymptotic to the line x = -2 and increases from the left in quadrant 3, passing through (-1, -3) and (2, 0).

To find the intervals where both functions are increasing, we need to identify the overlapping regions of increasing behavior for both functions.

Based on the given information, the only overlapping interval of increasing behavior for both functions is:

C. open parenthesis negative infinity, -4 close parenthesis union open parenthesis -2, infinity close parenthesis

This interval includes the range where function f(x) increases from the left and function g(x) increases from the left in quadrant 2 and quadrant 3.

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The smallest possible inside length of the cubical steel tank that can hold 275 liters of water is approximately 0.640 meters.

The side length of the cube is found by converting the volume of water from liters to cubic meters, as the unit of measurement for the side length is meters.

Given that the volume of water is 275 liters, we convert it to cubic meters by dividing it by 1000 (1 cubic meter = 1000 liters):

275 liters / 1000 = 0.275 cubic meters

Since a cube has equal side lengths, we find the side length by taking the cube root of the volume. In this case, we find the cube root of 0.275 cubic meters:

∛(0.275) ≈ 0.640

Rounded to the nearest 0.001 meters, the smallest possible inside length of the tank is approximately 0.640 meters.

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When the means in Study 2 are farther apart and the standard deviation is either smaller or similar to Study 1, the effect size (Cohen's d) for Study 2 would be larger. This suggests a stronger or more substantial difference between the two groups being compared in Study 2 compared to Study 1.

Cohen's d is a measure of effect size that quantifies the difference between two means in terms of standard deviation units. It takes into account both the difference in means and the variability within the groups being compared.

In this scenario, Study 2 would have a larger effect size compared to Study 1. The reason for this is that Cohen's d is calculated by dividing the difference between the means by the standard deviation.

Since the means in Study 2 are farther apart, the numerator (difference between means) in Cohen's d calculation would be larger for Study 2 compared to Study 1. This larger numerator contributes to a larger effect size.

Additionally, Cohen's d also considers the standard deviation of the samples. If the variability within the groups (standard deviation) in Study 2 is smaller compared to Study 1, it would further increase the effect size.

Therefore, when the means in Study 2 are farther apart and the standard deviation is either smaller or similar to Study 1, the effect size (Cohen's d) for Study 2 would be larger. This suggests a stronger or more substantial difference between the two groups being compared in Study 2 compared to Study 1.

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Answer:

Explain it a little more

Step-by-step explanation:

the number 1 transform to R squared, by LCM method.

The least Common Multiple is referred to as LCM. The lowest number that is both a multiple of both of the other two numbers is the least frequent multiple of those two numbers. The smallest positive integers that seem to be divided by both a and b is referred to in mathematics and number theory as that of the least common multiple (LCM), or the lowest common multiple of two numbers a and b.

the number 1 transform to R squared, by LCM.

The step by step detailed solution is given below:

cosθ = √(1 - sin²θ

= √1 - (Rθ + Rθ)² / R²

Here through LCM method the denominator becomes R² and in numerator 1, it becomes multiplied by R²

= √R² - (Rθ + Rθ)² / R²

= √R² - (Rθ + Rθ)² /√ R²

= √R² - (Rθ + Rθ)² / R

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Step-by-step explanation:

Probability of A  is  10 + 5  =15

Probability of B is   9 + 5   ( but you already counted the '5')  

 so just count   9

9+ 15 = 24

  this is  24 out of     16 + 10 + 5 + 9 = 40

      or    24/40   which reduces to 3/5   or  .6   or  60%

Using the equation given:

P(A) + P(B) - P(A and B)

  15  + 14    - 5    = 24       this is out of the entire number 40

               24/40 = same as above

Answer:

x = 11

Step-by-step explanation:

Answer:

x = 11

Step-by-step explanation:

so in order to solve this equation we need to know the value of x and to do that we need to look at our problem:

2x – 10 = 12

Now that we can see the problem the first thing we are going to do is segregate 2x in the equation by adding 10 to each side of the equal sign:

2x – 10 = 12

2x (– 10 + 10) = (12 + 10)

2x = 22

Now we are going to divide 2 from both sides of the equation to separate 2 from x:

2x = 12

2x/2 = 22/2

x = 11

Now we have to check our work by inserting 11 in place of x in the original equation :

2x – 10 = 12 or 2(11) - 10 = 12

2(11) - 10 = 12

22 - 10 = 12

12 = 12

SO the answer to the question: What is the solution of the equation 2x – 10 = 12? is x = 11.

Hope this helps you!!

Answer:

\( \boxed{ \bold{ \huge{ \boxed{ \sf{k = 53}}}}}\)

Step-by-step explanation:

\( \bigstar{ \sf{ \: \: \frac{3 + k}{14} = 4}}\)

\( \tt{Step \: 1 \: }\) : Do cross multiplication

\( \hookrightarrow{ \sf{3 + k = 4 \times 14}}\)

\( \tt{Step \: 2}\) : Multiply the numbers : 4 and 14

\( \hookrightarrow{ \sf{3 + k = 56}}\)

\( \tt{Step \: 3 \: }\) Move 3 to right hand side and change it's sign

\( \hookrightarrow{ \sf{k = 56 - 3}}\)

\( \tt{Step \: 4 \: }\) Subtract 3 from 56

\( \hookrightarrow{ \sf{k = 53}}\)

The value of k is 53

Hope I helped!

Best regards! :D

~TheAnimeGirl

Answer:

Step-by-step explanation:

k/14 + 3 = 4

k/14 = 1

k = 14

Since our p-value above our significance level of 0.1, we are unable to reject the null hypothesis and conclude that there is insufficient evidence to show that the average jail sentence for white collar crime differs from 34.9 months.

First of all define our null and alternative hypotheses:

Null hypothesis: the average length of prison term for white collar crime is 34.9 months.

Alternative hypothesis: the average length of prison term for white collar crime is not 34.9 months.

Now calculate the test statistic:

⇒ t = (X - μ) / (s / √n)

where X is the sample mean,

μ is the hypothesized population mean,

s is the sample standard deviation, and n is the sample size.

Plugging in our values, we get:

⇒t = (31.1 - 34.9) / (9.1 / √42)

⇒t = -1.76

Using a t-distribution table with 41 degrees of freedom (df = n - 1),

we find the p-value to be 0.0872.

Since our p-value is greater than our significance level of 0.1,

we fail to reject the null hypothesis and conclude that there is not sufficient evidence to suggest that the average prison stay for white collar crime differs from 34.9 months.

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For situation 1, the z-value is approximately 1.96, and for situation 2, the z-value is approximately 0.84.

To find the value of z for each situation, we need to use the standard normal distribution table or a calculator. The standard normal distribution has a mean of 0 and a standard deviation of 1.

1. Situation 1: To find z for a given probability, we can use the cumulative distribution function (CDF). For example, if we want to find the z-value for a probability of 0.95, we can find it on the table or use a calculator. The z-value for a probability of 0.95 is approximately 1.96.

2. Situation 2: To find z for a given percentile, we can use the inverse cumulative distribution function (ICDF). For example, if we want to find the z-value for the 80th percentile, we can find it on the table or use a calculator. The z-value for the 80th percentile is approximately 0.84.

Remember to round your answers to two decimal places as requested.

In conclusion, for situation 1, the z-value is approximately 1.96, and for situation 2, the z-value is approximately 0.84.

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Answer:

x=25

Step-by-step explanation:

because i divided

The bug changes direction at t = 4. This can be answered by the concept of velocity.

To determine when the bug changes direction, we need to find when its velocity changes sign from positive to negative. From the graph, we see that the bug's velocity is positive for t < 4 and negative for t > 4. Therefore, the bug changes direction at t = 4.

To verify this, we can look at the behavior of the bug's velocity as it approaches t = 4. From the graph, we see that the bug's velocity is increasing as it approaches t = 4 from the left, and decreasing as it approaches t = 4 from the right. This indicates that the bug is reaching a maximum velocity at t = 4, which is when it changes direction.

Therefore, the bug changes direction at t = 4.

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You should deposit approximately $340.84 monthly to reach $293,000 in 28 years at a 4.4% annual interest rate compounded monthly.

To calculate the monthly deposit required for an investment plan paying 4.4% interest compounded monthly to reach $293,000 in 28 years, we use the future value of an annuity formula:

FV = P * (((1 + r)^n - 1) / r)

Here, FV is the future value, P is the monthly deposit, r is the monthly interest rate, and n is the number of payments. First, convert the annual interest rate (4.4%) to a monthly rate by dividing by 12, which gives 0.0367 (4.4%/12) or 0.00367 as a decimal. The number of payments (n) is 28 years * 12 months/year = 336.

We want to find P, so rearrange the formula:

P = FV / (((1 + r)^n - 1) / r)

Substitute the values:

P = $293,000 / (((1 + 0.00367)^336 - 1) / 0.00367)

P ≈ $340.84

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Answer:

$1100 per week

Step-by-step explanation:

Amount made per week = $990

Increase amount per week  = $110

Unknown:

What will be his weekly pay per week = ?

Solution:

His weekly pay per week will be = amount made per week + Increase

                                                       = $990 + $110

                                                       = $1100

He now makes $1100 per week.

Triangle PQR with ∠P = 31°, RQ = 7cm and PQ = 12cm, the angle x which is ∠PRQ would be 34.46°.

The law of cosines will be used to find angle PRQ, because it relates angles and sides of a triangle:

\(c^2 = a^2 + b^2 - 2ab cos(C)\)

where, c= length of the side opposite ∠C,

a and b = lengths of other two sides

In the question, it is given:

∠P = 31°

PQ = 12 cm

RQ = 7 cm.

To find ∠PRQ, which is opposite side PQ.

Finding the length of PR using the law of cosines:

\(PR^2 = PQ^2 + RQ^2 - 2(PQ)(RQ)cos(P)\)

\(PR^2 = 12^2 + 7^2 - 2(12)(7)cos(31)\)

\(PR^2 = 144 + 49 - 168cos(31)\)

\(PR^2 = 132.81\)

\(PR = \sqrt{132.81}\)

\(PR = 11.53 cm\) (rounded to two decimal places)

Finding  ∠PRQ using the law of cosines:

\(cos(PRQ) = (PQ^2 + PR^2 - RQ^2) / (2PQPR)\)

\(cos(PRQ) = (12^2 + 11.53^2 - 7^2) / (2(12)(11.53))\)

\(cos(PRQ) = 0.824\)

\(PRQ = cos^-^1 (0.824)\)

\(PRQ = 34.46\) degrees (rounded to two decimal places)

Therefore, ∠PRQ is approximately 34.46°.

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Answer:

2/8, 4,16

Step-by-step explanation:

answer:

- 1/6 x + 4

steps by steps:

It has been proved that if A and B are idempotent and AB = BA then AB is idempotent.

To prove that if A and B are idempotent and AB = BA, then AB is idempotent, follow these steps:

1. Given that A and B are idempotent matrices, we have:
  A² = A
  B² = B

2. Also given that AB = BA (commutative property).

3. Now we need to prove that (AB)² = AB to show that AB is idempotent.

4. Calculate (AB)²:
  (AB)² = (AB)(AB)

5. Using the commutative property (AB = BA), rewrite the expression:
  (AB)² = (AB)(BA)

6. Now use the associative property to rearrange the expression:
  (AB)² = A(BA)B

7. Substitute BA with AB (since AB = BA):
  (AB)² = A(AB)B

8. Now substitute A² and B² with A and B, respectively (since A² = A and B² = B):
  (AB)² = A(AB)B
          = (A²)(AB)(B²)
          = A(AB)B

9. Thus, we have proven that (AB)² = AB, which means that AB is idempotent.

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Answer;

The equation of the line is

3y = 4x + 4

Explanation;

Mathematically we can write the equation of a straight line in the form

y = mx + c

where m is the slope

Since the old line would parallel to the new line, then they have the same slope

This means that the slope of the new line will be 4/3

Now, we had yet slope and a point, we need to write the equation of the line

mathematically;

y- y1 = m(x - x1)

In this case m = 4/3, (x1,y1) = (5,-8)

Thus;

y+ 8 = 4/3(x-5)

y+ 8 = 4/3x -20/3

y = 4/3x -20/3 + 8

Multiply through by 3

3y = 4x -20 + 24

3y = 4x + 4

There is a significant relationship between the number of cats she owns and the number of times an old widow was married (r = +0.91, p < 0.05, r² = 0.82).

Given, the Pearson correlation coefficient of +0.91,

There appears to be a strong +ve correlation between the number of cats she owns and the number of times an old widow was married.

It suggests that the more times a widow was married,the more cats she tends to own.

Approximately 82% of the variance in the number of cats owned can be explained by the number of times a widow was married is indicated by the coefficient of determination (r²).

Hence, we can say that there is a significant relationship between the number of cats she owns and the number of times an old widow was married (r = +0.91, p < 0.05, r² = 0.82).

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Answer:

the first answer

Step-by-step explanation:

In SOHCAHTOA, we are using soh

sin(23)=2500/x