Answer:

Answer:

a)n=543

b)n=1509

c)n=13573

Step-by-step explanation:

a)

c=98%,

Margin Error

but

where the confidence level is 1-α=0.98

cross multiply

where p=0.5

input the values

n=0.33

b) E=0.33

confidence level

n=(2.33/0.33)²×0.5(1-0.5)=1504

c)

1-α=0.98

cross multiply

Zα/2=2.33

p=0.5

n=(2.33/0.01)²×0.5(1-0.5)=13573

PLS HELPPP ITS NOT THAT HARD

The half-life of radium-226 is 1620 yr. Given a sample of 1 g of radium-226, the quantity left Q(t) (in g) after t years is given by:Q(t)= 1/2^t/1620 Required:a. Convert this to an exponential function using base e.b. Verify that the original function and the result from part (a) yield the same result for Q(0), Q(1620), and Q(3240).

Evaluate the expression if b = 5 and c = -4. 3c - 2b

The table below gives the list price and the number of bids received for five randomly selected items sold through online auctions. Using this data, consider the equation of the regression line, yˆ=b0+b1x, for predicting the number of bids an item will receive based on the list price. Keep in mind, the correlation coefficient may or may not be statistically significant for the data given. Remember, in practice, it would not be appropriate to use the regression line to make a prediction if the correlation coefficient is not statistically significant. Price in Dollars 25 33 34 45 48Number of Bids 2 3 4 5 7 Step 1 of 6: Find the estimated slope. Round your answer to three decimal places.Step 2 of 6: Find the estimated y-intercept. Round your answer to three decimal places.Step 3 of 6: Find the estimated value of y when x = 34. Round your answer to three decimal places.Step 4 of 6: Determine the value of the dependent variable yˆ at x = 0.Step 5 of 6: Substitute the values you found in steps 1 and 2 into the equation for the regression line to find the estimated linear model. According to this model, if the value of the independent variable is increased by one unit, then find the change in the dependent variable yˆ.Step 6 of 6: Find the value of the coefficient of determination.

Math help!!! Who know the answers???

The half-life of radium-226 is 1620 yr. Given a sample of 1 g of radium-226, the quantity left Q(t) (in g) after t years is given by:Q(t)= 1/2^t/1620 Required:a. Convert this to an exponential function using base e.b. Verify that the original function and the result from part (a) yield the same result for Q(0), Q(1620), and Q(3240).

Evaluate the expression if b = 5 and c = -4. 3c - 2b

The table below gives the list price and the number of bids received for five randomly selected items sold through online auctions. Using this data, consider the equation of the regression line, yˆ=b0+b1x, for predicting the number of bids an item will receive based on the list price. Keep in mind, the correlation coefficient may or may not be statistically significant for the data given. Remember, in practice, it would not be appropriate to use the regression line to make a prediction if the correlation coefficient is not statistically significant. Price in Dollars 25 33 34 45 48Number of Bids 2 3 4 5 7 Step 1 of 6: Find the estimated slope. Round your answer to three decimal places.Step 2 of 6: Find the estimated y-intercept. Round your answer to three decimal places.Step 3 of 6: Find the estimated value of y when x = 34. Round your answer to three decimal places.Step 4 of 6: Determine the value of the dependent variable yˆ at x = 0.Step 5 of 6: Substitute the values you found in steps 1 and 2 into the equation for the regression line to find the estimated linear model. According to this model, if the value of the independent variable is increased by one unit, then find the change in the dependent variable yˆ.Step 6 of 6: Find the value of the coefficient of determination.

Math help!!! Who know the answers???

**Answer:**

Area = 81; Side Length = 3

**Step-by-step explanation:**

The area of a square is the side lenght squared, and 9² is 81.

The side lengh can be found by taking the square root of the area. √9 = 3

**Answer: **

Hopefully this graph helps you!

Here is the completed table showing the description of 2D quadrilaterals:

Quadrilateral Two pairs of opposite angles equal One pair of opposite angles equal Two pairs of parallel sides One pair of parallel sides Two pairs of equal sides All angles 90°

Square ✓ ✓ ✓

Rectangle ✓ ✓ ✓

Parallelogram ✓ ✓

Rhombus ✓

Kite

Trapezium ✓ ✓

Note: "Trapezium" is the British English term for what is called a "trapezoid" in American English.

Quadrilateral Two pairs of opposite angles equal One pair of opposite angles equal Two pairs of parallel sides One pair of parallel sides Two pairs of equal sides All angles 90°

Square ✓ ✓ ✓

Rectangle ✓ ✓ ✓

Parallelogram ✓ ✓

Rhombus ✓

Kite

Trapezium ✓ ✓

Note: "Trapezium" is the British English term for what is called a "trapezoid" in American English.

**Answer:**

No, it is not.

**Step-by-step explanation:**

You graph the inequality by finding the boundary line, then shading the appropriate area.

“Iran declares war on the United States”

“School in China raises $5,000 for cancer research”

“Company closes in Alaska, lays off 2 people”

WHO EVER ANSWERS FIRST I WILL GIVE BRAINLIEST PLSE HELP ME

**Answer:**

*I personally think B but I do not know for sure.*

**Step-by-step explanation:**

BAB

-----------

CCC

Each letter represents a single digit from 9 to 0

The sum of A and B can have no carry. If we assume A ≠ B ≠ C, then you can have ...

... (A, B, C) ∈ {(1, 2, 3), (2, 1, 3), (1, 3, 4), (3, 1, 4), (1, 4, 5), (4, 1, 5), (1, 5, 6), (5, 1, 6), (1, 6, 7), (6, 1, 7), (1, 7, 8), (7, 1, 8), (1, 8, 9), (8, 1, 9), (2, 3, 5), (3, 2, 5), (2, 4, 6), (4, 2, 6), (2, 5, 7), (5, 2, 7), (2, 6, 8), (6, 2, 8), (2, 7, 9), (7, 2, 9), (3, 4, 7), (4, 3, 7), (3, 5, 8), (5, 3, 8), (3, 6, 9), (6, 3, 9), (4, 5, 9), (5, 4, 9)}

**Answer:**

when a number is divisible by 9, then the number is divisible by 3.

**Step-by-step explanation:**

They tell us "When a number is divisible by 9, the number is divisible by 3" we could change it by:

when a number is divisible by 9, then the number is divisible by 3.

Which makes sense because the number 9 is a multiple of the number 3, which means that the 9 can be divided by 3, therefore, if the number can be divided by 9, in the same way it can be divided by 3 .

The statement "When a number is divisible by 9, the number is **divisible **by 3" can be rewritten in if-then form as: If a number is divisible by 9, then the number is divisible by 3.

In this case, the** conclusion** is that the number is divisible by 3.

Here is a table that summarizes the if-then form of the statement:

| Hypothesis | Conclusion |

|---|---|---|

| A number is divisible by 9 | The number is divisible by 3 |

In other words, if the hypothesis is **true** (i.e., the number is divisible by 9), then the conclusion must also be true (i.e., the number is divisible by 3).

Here is an example:

**Hypothesis**: The number 18 is divisible by 9.

Conclusion: The number 18 is divisible by 3.

Both the hypothesis and the conclusion are true, so the if-then statement is true.

For such more question on **divisible **

#SPJ3