Find the volume of the specified cone. Use 3.14 for Pi, and round your answer to the nearest whole number. Diameter = 3 cm, Height = 4 cm a. 57 cu. cm b. 25 cu. cm c. 38 cu. cm d. 9 cu. cm

Answer:

Step-by-step explanation:

Therefore, √2 = 1.414 ⇒ √2 = 1.41 (correct tip to 2 places of decimal)

Therefore, √3 = 1.7324 ⇒ √3 = 1.732 (correct tip to 3 places of decimal)

Therefore, √0.08 = 0.894 ⇒ √0.8 = 0.89 (correct tip to 2 places of decimal)

● Square Root.

Answer:

Step-by-step explanation:

You can use the division method to find the value of the non-perfect square number.

The relationship between the cost of books and pens is an illustration of linear equation.

The linear equation is (a) \(x - 2y - 10 =0\)

From the question, we have:

x exceeds 2 times y by 10

Rewrite as:

x exceeds 2y by 10

Exceed means plus (+)

So, we have:

\(x = 2y + 10\)

Equate the above equation to 0

\(x - 2y - 10 =0\)

Hence, the required equation is (a) \(x - 2y - 10 =0\)

Read more about linear equation at:

https://brainly.com/question/11897796

Answer:

16,397

Step-by-step explanation:

863           Do 3*9, 6*9, 8*9 and carry if needed.

*  19           Do the same with 1: 3*1, 6*1, 8*1. Also don't forget to put a 0.                  

____         Then add to get: 16,397

7767

8630

_____

16,397

If A, B, and C are non-singular n×n matrices such that AB = C, BC = A, and CA = B, then ABC = I, where I is the identity matrix of size n×n.

1. We know that AB = C, BC = A, and CA = B.

2. Let's multiply the first two equations: (AB)(BC) = C(A) = CA = B.

3. Simplifying the expression, we have A(BB)C = B.

4. Since BB is equivalent to \(B^2\) and matrices don't always commute, we can't directly cancel out B from both sides of the equation.

5. However, since A, B, and C are non-singular, we can multiply both sides of the equation by the inverse of B, giving us \(A(BB)C(B^{(-1)\)) = \(B(B^{(-1)\)).

6. Simplifying further, we get \(A(B^2)C(B^{(-1)})\) = I, where I is the identity matrix.

7. Multiplying the equation, we have A(BBC)(\(B^{(-1)\)) = I.

8. Since BC = A (given in the second equation), the equation becomes A(AC)(\(B^{(-1)\)) = I.

9. Using the third equation CA = B, we have A(IB)(\(B^{(-1)\)) = I.

10. Simplifying, we get A(I)(\(B^{(-1)\)) = I.

11. It follows that A(\(B^{(-1)\)) = I.

12. Finally, multiplying both sides by B, we have  = B.

13.\(B^{(-1)\)B is equivalent to the identity matrix, giving us AI = B.

14. Therefore, ABC = I, as desired.

For more such questions on matrices, click on:

https://brainly.com/question/2456804

#SPJ8

Answer:

Can't answer

Step-by-step explanation:

There is no math.

Answer:

yes because 3 is in - and it is less than 0

Answer:

Yes

Step-by-step explanation:

-3x ≥ 12

Divide both sides by -3

When multiplying or dividing by a negative the inequality must be reversed

x ≤ -4

9514 1404 393

Answer:

  (c)  1

Step-by-step explanation:

To find f(-2), locate -2 in the x column. Then find the corresponding f(x) value.

 -2 is in the second row, opposite f(x) = 1, so f(-2) = 1.

Answer: c

Step-by-step explanation:

Answer:

i got it correct ⬇️

Credit cards are safer than cash, C. If a merchant does not hold up their end of an agreement, you can call the credit company and dispute the charges.

A credit card is a small, rectangular piece of plastic or metal that is issued by a bank or other financial institution and enables its holder to borrow money to pay for products and services at businesses that accept credit cards.

Credit cards impose the need that cardholders repay the borrowed funds, plus any applicable interest and any other agreed-upon charges, in full or over time, either by the billing date or at a later date.

Now, Credit cards are more safer than cash because A credit card requires a signature, so it is impossible for anyone other than you to use them.

But, A statement more convenient than this is,

If a merchant does not hold up their end of an agreement, you can call the credit company and dispute the charges.

learn more about credit cards here :

https://brainly.com/question/27350251

#SPJ7

Answer:

-275s+205+7t

Step-by-step explanation:

since it is addition, you can just remove the parentheses without doing anything else. Then just add the ones with the same coefficients.

Answer:

w=9

Step-by-step explanation:

first you wanna add 6 and -10 which gives you -4, after that you bring -4 over to 5 and change it to positive and it becomes 9, which gives you w=9

Answer:

0.23

Step-by-step explanation:

23 percent is 23/100, so to find the decimal, you move the point two places to the left.

The flaw in reasoning is drawing a causal inference without considering confounding factors and relying solely on the total number of cases. Valid inferences require a comprehensive analysis, control of confounding variables, and consideration of multiple indicators of response effectiveness.

The flaw in reasoning in this scenario is that the blogger is drawing a causal inference without considering other factors that could affect the number of reported cases in each state, such as differences in testing availability and criteria, population density, and demographic characteristics.

The blogger is also assuming that the total number of cases accurately reflects the effectiveness of each state's response, without considering differences in testing and reporting delays.

To produce valid inferences, the blogger should have conducted a more comprehensive analysis, controlling for confounding variables and using appropriate statistical methods to compare the incidence rates or growth rates of COVID-19 cases in each state over time.

The blogger should also have consulted reliable sources of information, such as public health agencies and scientific studies, to evaluate the effectiveness of each state's response based on multiple indicators, including testing capacity, contact tracing, hospital capacity, and public compliance with guidelines and restrictions. Finally, the blogger should have acknowledged the complexity and uncertainty of the situation and avoided simplistic or divisive interpretations of the data.

Know more about the population density click here:

https://brainly.com/question/16894337

#SPJ11

Answer:

y=21.14

Step-by-step explanation:

x=6 because after 6 weeks

y= 3.27(6)+ 1.52

y=19.62 + 1.52

y=21.14

if the level of significance of a hypothesis test is raised from .01 to .05, then  the probability of a Type II error will decrease when the level of significance of a hypothesis test is raised from .01 to .05. (option a)

This change in the level of significance does not directly affect the probability of a Type II error. A Type II error occurs when we fail to reject the null hypothesis, even though it is false. This means that we have concluded that there is no relationship between the variables, even though there actually is one.

The probability of a Type II error depends on several factors, such as the sample size, the effect size, and the level of significance. In general, as the level of significance increases, the probability of a Type II error decreases.

This is because when we are more lenient in rejecting the null hypothesis, we are more likely to detect any real relationship that exists between the variables.

Therefore, the correct answer to your question is (a)

To know more about hypothesis here

https://brainly.com/question/29576929

#SPJ4

Answer:

C will be the perfect answer

Answer: C

Step-by-step explanation: inches squared means the number must be multiplied by itself because it is an exponent. So if the measurements are 612 by 612, it is the correct answer because it means the same thing.

Answer:

All the given expressions are quadratic expression.

Step-by-step explanation:

All the given expressions are quadratic expression.

We can conclude that for experiments 1, 2, and 4, we fail to reject the null hypothesis, indicating that the observed proportion of six's is not significantly different from 1/6. However, for experiment 3, we reject the null hypothesis, suggesting that the observed proportion of six's is significantly different from 1/6.

To perform the test, we can calculate the test statistic and compare it to the critical value or calculate the p-value. Since the question asks for the critical/acceptance region approach, we will use critical values.

Assuming a significance level (alpha) of 0.05, we can calculate the critical values for a two-tailed test. Since we have four separate experiments, we will conduct four separate tests.

To calculate the critical values, we will use a two-tailed test. We want to find the z-values corresponding to the adjusted significance level of 0.0125/2 = 0.00625 in each experiment.

Using a standard normal distribution table or a calculator, the critical z-values for an adjusted significance level of 0.00625 are approximately ±2.878.

For each experiment, we can compare the test statistic (the number of "six's" observed) to the critical values to make a decision:

Experiment 1:

Number of tosses: 100

Number of "six's": 19

Decision: Fail to reject the null hypothesis since 19 is not outside the critical values.

Experiment 2:

Number of tosses: 500

Number of "six's": 90

Decision: Fail to reject the null hypothesis since 90 is not outside the critical values.

Experiment 3:

Number of tosses: 1000

Number of "six's": 142

Decision: Reject the null hypothesis since 142 is outside the critical values.

Experiment 4:

Number of tosses: 10000

Number of "six's": 1508

Decision: Reject the null hypothesis since 1508 is outside the critical values.

Based on these results, we can conclude that for experiments 1, 2, and 4, we fail to reject the null hypothesis, indicating that the observed proportion of six's is not significantly different from 1/6. However, for experiment 3, we reject the null hypothesis, suggesting that the observed proportion of six's is significantly different from 1/6.

To know more about null hypothesis, click here: brainly.com/question/29892401

#SPJ11

Answer:

x = 14.0902 (After rounding to the nearest ten-thousandth)

Step-by-step explanation:

Using the bottom angle to solve x, the best option to use would be sine as we have the length for the opposite leg. Then we do the following:

Sin(69) = Opp/Hyp

Sin(69) = 14/x

0.9336 = 14/x

0.9336(x) = 14/x(x)

0.9336x = 14

0.9336x/0.9336 = 14/0.9936

x = 14.0902

Answer:

motor was basically a big magnet in the middle of the motor surrounded by coils of copper. To make the motor run, we would apply an AC field to the coils ...

Answer:

There were 4 pieces

Step-by-step explanation:

Step-by-step explanation:

Hey there!

Given;

\( {2}^{4x - 1} =32 \)

\( {2}^{4x} . {2}^{ - 1} = {2}^{5} \)

\( {2}^{4x} . \frac{1}{2} = {2}^{5} \)

\( {2}^{4x} = {2}^{5} . {2}^{1} \)

\( {2}^{4x} = {2}^{6} \)

\(4x = 6\)

\(x = \frac{6}{4} \)

\(x = \frac{3}{2} \)

7.)

\( \sqrt{x} - 3 = 7\)

\( \sqrt{x} = 7 + 3\)

\(( { \sqrt{x}) }^{2} = {(10)}^{2} \)

X= 100

8.)

\(( {x + 1)}^{2} = 81\)

\((x + 1) = \sqrt{81} \)

\(x + 1 = \sqrt{ {9}^{2} } \)

\(x + 1 = 9\)

\(x = 9 - 1\)

X=8

Hope it helps...

Step-by-step explanation:

Just look at the slopes, i.e., the factor before the x. They should be reciprocal to have perpendicular lines.

Reciprocal means that if the slope of one line is a, the slope of the other line should be -1/a.

Here we have -5 and 0.2, and indeed -1/-5 = 0.2, so they are perpendicular.

Answer:

What is the question??

Step-by-step explanation:

I am confused.

if a = 3 and b = 4, then:

4/2 ÷ 2 + (3^2 - 1)

2 ÷ 2 + (3^2 - 1)

1 + (9 - 1 )

1 + (8)

9

Please vote Brainliest if this helped you!

Answer:

Step-by-step explanation:

a = 3 & b = 4

b/2 ÷ 2 + (a² - 1) = 4/2 *1/2 + (3² -1)

                         = 1 + (9-1)

                        = 1 + 8

                       =9

Answer:

I don't want to give you the answer because I will cheat you out of your work but I will give you a hint... use the pythagorean theorem

Answer:

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

Use circumference formula:

Find the radius by rearranging the formula and substituting 32 for C:

Answer:

5.09 in

Step-by-step explanation:

We know that the formula to find the circumference of a circle is:

C = 2πr

Here,

C → Circumference → 32 in

r → radius

Let us find the radius of the circle by substituting the given values.

\(\sf C = 2\pi r\\\\\sf 32 = 2\pi r\\\\Divide\:both\:sides\:by\:2 \pi \:and\:make\:r\:the \:subject\\\\\dfrac{32}{2 \pi} =\dfrac{2 \pi r}{2 \pi} \\\\\red{5.09 \:in=r}\)

The probability of a random sample of 80 households having a sample means a number of at least 2.55 televisions per household is 0.48173.

Given: Mean(μ) = 2.24, Standard deviation(σ) = 1.38, Sample size(n) = 1.28 and a random variable for X = 2.55

The formula to calculate the z-score from the mean. The standard deviation is:

z = (X - μ) / ( σ / √(n)) where,

z = z-score,

X = random variable,

μ = mean,

σ = standard deviation, and

n = sample size

Let's solve the given question:

We have,

Mean(μ) = 2.24,

Standard deviation(σ) = 1.38,

Sample size(n) = 80, and

a random variable for X = 2.55

As it is given sample means at least 2.55 so we have to find the Z(x ≥ 2.55).

Therefore, Z(x ≥ 2.55) = (2.55 - μ) / ( σ / √(n))

Substituting all values we get:

Z(x ≥ 2.55) = (2.55 - 2.24) / ( 1.38 / √(80))

Z(x ≥ 2.55) = 0.01 / 0.21819

Z(x ≥ 2.55) = 0.48173

Hence the probability of a random sample of 40 households having a sample means a number of at least 2.55 televisions per household is 0.48173.

learn  more about of  “probability distribution” here: brainly.com/question/11234923

#SPJ4