Two cards are randomly chosen from a standard deck of cards with replacement. What is the probability of successfully drawing, in order, a three and then a queen?

Answer:

it would be nice if I could see it

Answer:

it will float!

Step-by-step explanation:

in order to find density, you must divide the mass by the volume. the volume is 56 ml, and the mass is 45.5. (45.5 / 56 = 0.8125) because we know the density of water is 1, and the density of this liquid is less than that of water, it will float because it is "lighter". hope it helped <33

Step-by-step explanation:

answer is you're question

Since none of the 13 classmates had been given math homework between the original survey and Kelly's second survey, the sum of the values in the second data set is the same as the sum of the values in the original data set. Therefore, the change in the means can be determined without calculating the mean of either data set by considering the number of data points in each set.

Since both data sets have the same number of data points, the change in the means will be zero. This is because the mean is calculated by dividing the sum of the values by the number of data points, and since the sum of the values is the same in both data sets, the means will also be the same.

In other words, the change in the mean is calculated as follows:

Change in mean = Mean of second data set - Mean of first data set

Since none of the values in the second data set have changed, the mean of the second data set is the same as the mean of the first data set. Therefore, the change in the mean is:

Change in mean = Mean of second data set - Mean of first data set

= Mean of first data set - Mean of first data set

= 0

Thus, the change in the means between Kelly's original survey and her second survey is zero.

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Answer:

the positive square root of 81 is 9

Step-by-step explanation:

9 times itself equals 81

Answer:

100

Step-by-step explanation:

x^2 – 20x = 5

Take the coefficient of x

-20

Divide by 2

-20/2 = -10

Square it

(-10)^2 - 100

Add this to both sides

x^2 – 20x+100 = 5+100

Answer:

it would be 100

Step-by-step explanation:

correct on edge 2020

Answer:

0.0000123

Step-by-step explanation:

That " -5 " exponent requires that we move the decimal place 5 units to the left, which results in:

0.0000123

Answer:

I think it is i

Step-by-step explanation:

The formula is 2(l+w)

2(13+8)

2(13)=26

2(8)=16

26+16=42

Answer:

Step-by-step explanation:

The loop will run an infinite number of times

The value of measure of ''angle f'' in the figure will be 46°.

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

We have to given that;

In the figure,

The value of angle a and e are;

⇒ a = 115°

⇒ e = 69°

Now,

Since, There are two parallel lines shown in figure.

Hence, We know by the definition of alternate angles of parallel lines,

⇒ ∠a = ∠f + ∠e

Here, We have to given that;

The angles are,

⇒ a = 115°

⇒ e = 69°

So, We get by substitute the value of angle a and e;

⇒ ∠a = ∠f + ∠e

⇒ 115° = ∠f + 69°

Subtract 69° both side, we get;

⇒ ∠f = 115° - 69°

⇒ ∠f = 46°

Thus, The value of measure of angle f;

⇒ ∠f = 46°

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Answer:

B

Step-by-step explanation:

it is a function but not a line

Answer:

b) a nonlinear function

Step-by-step explanation:

it's exponential so it's a nonlinear function.

i hope this is right. p.s. if it helps i really need brainliest :)

y(t) = t + ln2 - e-t.

The solution to the initial value problem ty'+(t+1)=t, y(ln2)=1 is y(t) = t + ln2 - e-t. To solve this problem, we need to solve the differential equation, ty'+(t+1)=t.

Using the method of separation of variables,

we get y' = (t+1)/t, so y = ∫(t+1)/t dt. After integrating and applying the initial condition y(ln2) = 1, we get the solution y(t) = t + ln2 - e-t.

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Answer:

\(\huge\boxed{\sf 14\ times}\)

Step-by-step explanation:

\(\displaystyle Probability = \frac{Possible \ no. \ of\ events}{Total \ number\ of \ events}\)

If we roll a die 1 time, the probability of obtaining a 3 is:

= 1 / 6

Because a die has total 6 faces, out of which 3 is only 1.

But, if we roll it 84 times, it becomes:

= \(\displaystyle \frac{1}{6} \times 84\)

= 84/6

\(\rule[225]{225}{2}\)

The amount it would cost to paint the outside of the box is £208

From the question, we are to determine calculate how much it would cost to paint the outside of the box

To do this, we will calculate the surface area of the box

The surface area of a box is given by

S.A = 2(lw + lh + wh)

Where S.A is the surface area

l is the length

w is the width

and h is the height  

From the given information,

l = 10 cm

w = 80 cm

h = 20 cm

Thus,

S.A = 2(10×80 + 10×20 + 80×20)

S.A = 2(800 + 200 + 1600)

S.A = 2(2600)

S.A = 5200 cm²

Also, from the given information

The paint costs £0.04 per cm2

Thus,

The cost is £0.04 × 5200

= £208

Hence, the cost is £208

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Measure of ∠1 = 126 deg, Measure of ∠4 = 54 deg, and measure of ∠7 = 126 deg.

∵ Lines p and q are parallel, and t is transversal,

∴ ∠3 and ∠7 form pair of corresponding angles,

⇒ ∠3 and ∠7 are equal

∴∠7=126 deg.

Also, ∠3 and ∠1 are vertically opposite angles,

∴ ∠3 and ∠1 are equal.

⇒ ∠1=126

Again, as t is a straight line and line p intersects it,

∴ ∠3 and ∠4 form linear pair.

⇒ ∠3 and ∠4 are complementary.

⇒ ∠3+∠4=180

⇒ ∠4+126=180

⇒ ∠4=180-126

⇒ ∠4=54

Hence, measure of ∠1 is 126 deg, that of ∠4 is 54 deg, and that of ∠7 is 126 deg.

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Notice that the intersection between both functions on the positive values of x is near the line x=2. From the provided options, the closest to that value is 1.7

Then, the positive solution to f(x)=g(x) is closest to:

Answer:

True

Step-by-step explanation:

The interval will increase because there will be a wider scope into where the true population parameter could be. By decreasing it, you sacrifice some of that scope, so options like 90% and 95% are good levels.

True. As you increase the confidence level (assuming everything else remains the same), the width of the confidence interval increases.

The confidence level represents the level of certainty or assurance that the population parameter falls within the calculated confidence interval. It is typically expressed as a percentage, such as 95% or 99%.

When all other factors remain constant, increasing the confidence level leads to a wider confidence interval. This is because a higher confidence level requires a greater level of certainty, which translates to a larger margin of error.

The margin of error is the range around the point estimate that accounts for the uncertainty in the estimation process. A higher confidence level requires a larger margin of error to capture a wider range of possible values for the population parameter.

To achieve a higher confidence level, the critical value associated with the chosen level of confidence increases, resulting in a wider interval. This wider interval indicates a greater range of possible values for the population parameter and therefore a less precise estimation.

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Answer:

$7.10

Step-by-step explanation:

5 = $3.55

to get 10 cans you double the 5 cans

5 × 2 = 10 cans

$3.55 × 2 = $7.10

10 cans = $7.10

Answer:

14.955 to the nearest hundredth is 14.96

Step-by-step explanation:

The hundredths place in this scenario is 5. If you round it up, you get 10, which means that it would turn into 6 since it comes after 5. In conclusion, the answer is 14.96.

Answer:

the circumference is 25.133 and the area is 50.265

Answer: Using the formula,

Area=π×r2.

Area=π×r2.

=π×(4 cm)2.

=16π cm2≈50.24 cm2.

Step-by-step explanation:

Answer:

Let one number = x

Let the other number = x + 2

Use these variables to establish appropriate equations.

x2 + (x + 2)2 = 52

Solve for x from this equation. Expand any terms to get rid of parentheses.

x2 + x2 + 4x + 4 = 52

Combine any like terms.

2x2 + 4x - 48 = 0

WE now have a quadratic equation. Factor out a 2.

2(x2 + 2x - 24) = 0

Factor completely.

2(x + 6)(x - 4) = 0

Set the binomial factors equal to zero.

x + 6 = 0 and x - 4 = 0

Solve for x from these parts. Choose the positive x value.

Answer:

Harry has 22 candy bars

Step-by-step explanation: H = J-23

which is H = 45 - 23

There are 1078 different combinational methods to choose five baseball players and four basketball players from a pool of twelve baseball players and thirteen basketball players.

5 baseball players and 4 basketball players are chosen from a pool of 12 baseball players and 13 basketball players.

This is an issue of combination.

The combination is a way of estimating an event's total outcome when the sequence of the outcomes is irrelevant.

The formula is as follows: \({}^{n}C_{r}\) = n! ÷ (r! × (n - r)!)

Where n is the total number of things and r is the number of items picked at one time.

Let us first compute 5 baseball players from a total of 12 baseball players.

In this case, n = 12 and r = 5.

\({}^{12}C_{5}\) = 12! ÷ (5! × (12 - 5)!)

\({}^{12}C_{5}\) = 12! ÷ (5! × 7!)

The factorial of n for a number n is expressed as:

n! = n × (n-1) × (n-2) × (n-3) × .... × 2 × 1

Therefore,

\({}^{12}C_{5}\) = 12! ÷ (5! × 7!)

\({}^{12}C_{5}\) = 792

Similarly, 3 basketball players are chosen from a pool of 13 basketball players (n = 13 and r = 3).

\({}^{13}C_{3}\) = 13! ÷ (3! × (13 - 3)!)

\({}^{13}C_{3}\) = 13! ÷ (3! × 10!)

The factorial of n for a number n is expressed as:

n! = n × (n-1) × (n-2) × (n-3) × .... × 2 × 1

Therefore,

 \({}^{13}C_{3}\) = 13! ÷ (3! × 10!)

 \({}^{13}C_{3}\) = 286

As a result, the total number of methods is as follows:

\({}^{12}C_{5}\) + \({}^{13}C_{3}\) = 792 + 286

\({}^{12}C_{5}\) + \({}^{13}C_{3}\) = 1078

As a result, there are 1078 distinct methods.

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The function that models the data in the given table is: D. y = -2x + 10.

The function that models the data of a table can be expressed in the slope-intercept form as y = mx + b, where:

Find the slope of the function using two pairs of values from the table, (6, -2) and (10, -10):

Slope (m) = change in y / change in x = (-10 - (-2)) / (10 - 6)

Slope (m) = -8 / 4

Slope (m) = -2

Find the y-intercept (b) by substituting m = -2 and (x, y) = (6, -2) into y = mx + b:

-2 = -2(6) + b

-2 = -12 + b

-2 + 12 = b

10 = b

b = 10

To write the function, substitute m = -2 and b = 10 into y = mx + b:

y = -2x + 10

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Compound Interest

The final value of an investment of P dollars for t years at an interest rate of r is given by:

Where m is the number of compounding periods per year.

(a)

Lori buys a CD for P = $1500 that earns r = 6% = 0.06 interest compounded monthly for t = 10 years. Here m = 12 because there are 12 months in a year.

Substituting:

The CD will be worth $2729.10 in 10 years.

(b) If the interest compounds daily, then m = 360. Calculating:

The CD will be worth $2733.04 in 10 years.

(c) For t = 5 years:

The CD will be worth $2024.74 in 5 years.

Answer:all lines are straight

Step-by-step explanation:

Answer:

-0,15

Step-by-step explanation:

I think that's it, I'll give an explanation in the comments in a sec

Using proportions, it is found that the scale of the drawing is:

1 inch = 12 yards.

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The scale is that 144 yards are represented by 12 inches, hence:

144/12 = 12

Then, 1 inch = 12 yards.

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the minimum number of moves needed to transfer a tower of 3n disks from one pole to another. a) t1 = 2 , t2 = 6  b) t3 = 14 and

c)  recurrence relation ( Tn ) = 2Tn-1 + 2

Tn = minimum number of moves needed

2n disks is moved from one pole to another

a) determine the value of t1 and t2

let n = 1

2n moves = 2 * 1 = 2

∴ t1 = 2

let n = 2

2n moves = 2*2 = 4

∴ t2 = 4 + t1 = 4 + 2 = 6

b) determine value of t3

let n = 3

2n moves = 2 * 3 = 6

∴ t3 = t1 + t2 + 6

      = 2 + 6 + 6 = 14

c) Determine th recurrence relation

let n ≥ 2  i.e. n - 1 ≥ 1

number of disk required to be moved = 2n

number disks as follows : 1 to 2n

the recurrence relation = sum of number of moves in each step

                                   Tn = Tn-1 + 2 + Tn -1

hence recurrence relation ( Tn ) = 2Tn-1 + 2   when all integers n ≥ 2

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