21PLEASE HELP ME THIS IS URGENT I WILL GIVE BRAINLIEST AND 50 POINTS ALL FAKE ANSWERS WILL BE REPORTED AND PLS PLS PLS EXPLAIN THE ANSWER OR HOW U GOT IT PLEASE AND TY​

Answer:

Below.

Step-by-step explanation:

15y + 12x = 18

5y + 4x = 6

The  second equations is the first times 3 so they are basically the same.

Infinite Solutions.

2x+ 3y= 12

-6y= 4x-24          Rearranging the second equation:

-4x - 6y = -24      Multiplying the first equation by 2:

4x + 6y = 24      

- we see that the last equation is -1 * previous equation.

So there are infinite solutions.

The equations can be solved in the following manner. As shown below.

The equations can be solved in the following manner. As shown below.

1.  Multiplication Property of Equality

10a + 35b = 0, 21a - 35b = 217            

2.  Addition Property of Equality

31a = 217

3.  Division Property of Equality

a = 7

4.  Substitution Property of Equality

2(7) +7b = 0

5.  Simplify

14 + 7b = 0

6.  Subtraction Property of Equality

7b=-14

7.Division Property of Equality

b= -2

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Answer:

m=1

Hope this will help.

Answer:11.2

Step-by-step explanation:

    5.6

       2

______

11.2

Answer: Below

Step-by-step explanation:

Volume is based off of the formula (base × height/depth), with base being (width × length).

We know the three dimensions of the taller box, so:

7.75 × 2 × 12 = 186

The smaller box is 20% shorter. 12 × 0.8 gives us the 0% height, which is 9.6.

7.75 × 2 × 9.6 = 148.8

Since the problem is asking for the difference of the two volumes we do:

186 - 146.8 = 39.2

Our answer is 39.2

Answer:

1/4

Step-by-step explanation:

Originally, Kathy has 1/2 of a pizza.

She gave away 1/4 of a pizza.

This can be expressed as:

1/2 - 1/4 =

2/4 - 1/4 =

(2-1)/4 = 1/4

1/4

explanation

1/2-1/4=0.25

and 0.25 to a fraction is 1/4

The solution of the equation will be the value of t, which should yield equal values on either side of the equation, which is 21.

To solve the equation, we need to begin with multiplication or opening of bracket on either side of the equation.

6t - 30 = 4t + 12

Rearranging the equation

6t - 4t = 30 + 12

Performing subtraction on Left Hand Side and addition on Right Hand Side of the equation

2t = 42

Rewriting the equation according to t

t = 42/2

Performing division

t = 21

Hence, the value of t is 21.

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$176

48 divided by 3 = 16

16 x 11 = 176

:D

Answer:

300° - 720°

Step-by-step explanation:

Co-terminal angles:  Angles that have the same initial side and the same terminal sides.

The co-terminal angle is found by adding or subtracting 360°n (or 2πn if working in radians) to the given angle.

Given angle:

Therefore, co-terminal angles of 300° are:

⇒ 300° + 360°n = 660°, 1020°, ...

⇒ 300° - 360°n = -60°, -420°, ...

Therefore, the expression that finds the measure of an angle that is co-terminal with a 300° angle is one that adds or subtracts a multiple of 360°:

300° - 2(360°) = 300° - 720°

Answer:

here are 26 choices for each letter, so we can select the letters in 26 x 26 x 26 waysThere are 10 choices for each digit so we can select digits in 10 x 10 x 10 x 10 ways. So total : 26 '3 x 10 '4 ways

Step-by-step explanation:

The number of distinct license plates that can be created in the given pattern is 17576000.

The fundamental counting principle or basic principle of counting is a method or a rule used to calculate the total number of outcomes when two or more events are occurring together.

Given: A standard New York car license plate has 3 letters followed by 4 numbers.

If the letters and numbers can be repeated, then the number of ways 3 letters picked for license plate = 26 x 26 x 26

And the number of ways 4 numbers picked for license plate = 10 x 10 x 10

The total number of distinct license plates that can be created in the given pattern = 26 x 26 x 26 x 10 x 10 x 10

= 17576000

Hence, the number of distinct license plates that can be created in the given pattern is 17576000.

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P(X ≤ 1010) = P(X = 0) + P(X = 1) + ... + P(X = 1010) is the probability that at most 1010 of the 2020 people experience relief successfully

The probability that at most 1010 of the 2020 people experience relief successfully can be calculated using the binomial probability formula.

The binomial probability formula is: P(X = x) = (n choose x) * p^x * (1-p)^(n-x)

Where:
- n is the number of trials (in this case, 2020 people)
- x is the number of successes (in this case, at most 1010 people)
- p is the probability of success (in this case, we need to know the probability of a person experiencing relief successfully)

Without knowing the probability of success, we cannot calculate the probability that at most 1010 of the 2020 people experience relief successfully.

If we did know the probability of success, we would use the binomial probability formula for each possible number of successes from 0 to 1010, and then add them all together to get the total probability.

For example, if the probability of success was 0.5, we would calculate the probability of 0 successes, 1 success, 2 successes, etc. all the way up to 1010 successes, and then add them all together to get the total probability.

P(X ≤ 1010) = P(X = 0) + P(X = 1) + ... + P(X = 1010)

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Answer:

x ≥ −5 and x < 4

Step-by-step explanation:

-4x + 1 ≤ 21 and 5x + 2 <  22

5x + 2 < 22 = x < 4

We can plug it in: 5 x 3 + 2 < 22 = 17 < 22

-4x + 1 ≤ 21 = x= -5 and lower

Plug it in: -4 x -5 + 1 ≤ 21 = 21 ≤ 21 = x ≥−5

So both answers would be:

x ≥−5 for -4x + 1 ≥ 21

x < 4 for 5x + 2 <  22

The inequality that correctly compares Hailey's account values is: $117.39 > -$121.06.

To correctly compare the account values, we can use the inequality symbol.

Since Hailey has $117.39 in her savings account and -$121.06 in her checking account, the correct inequality to compare the values is:

Savings account value > Checking account value

Therefore, the correct inequality is:

$117.39 > -$121.06

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Answer:

1.8

Step-by-step explanation:

  1st step

 To find the mean absolute deviation of the data, start by finding the mean of the data set.

  2nd step

 Find the sum of the data values, and divide the sum by the number of data values.

   3rd step

Find the absolute value of the difference between each data value and the mean: |data value – mean|.

   4th step

Find the sum of the absolute values of the differences.

   5th step

Divide the sum of the absolute values of the differences by the number of data values.

The correct answer is: "Both 36 and 38 are statistics."

In this scenario, 36 is the average practice per week for the population of Olympic gymnasts, which is an unknown parameter. 38, on the other hand, is the average practice per week observed in the random sample of 20 athletes, which is a statistic calculated from the sample data.

Statistics are values calculated from sample data and are used to estimate or infer population parameters. In this case, the average practice time of 38 hours is a statistic that provides an estimate of the population parameter, which is unknown.

If a different random sample of 20 athletes were selected, it is not guaranteed that the average practice per week in that sample would also be exactly 38 hours. There may be some variation in the sample means due to sampling variability.

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Answer:

See attached image

Step-by-step explanation:

Answer:

Pete worked for 4 hours.

Step-by-step explanation:

If you subtract his tips from his overall total (50-16) you get 34. Now you divide what's left of his total by his hourly wage (34/8.5) which gets you 4.

The rowers travelled 7.5 miles upstream.

We can define relative speed as the speed of a moving body with respect to another. When two bodies move in the same direction, their relative speed is computed by their difference. But when two bodies are moving in the opposite direction, the relative speed is calculated by adding the speed of both the bodies.

Given here: The speed of the rowers in still water as 4 mph but since they are rowing upstream their relative speed will be equal to 4-3= 3 mph and while in downstream their speed is 5 mph

Now the distance they travelled on both ends of the river is equal

let they reach the upstream end in x hours and travel downstream for 4-x hours then we have

3x=(4-x )× 5

3x+5x=20

x=20/8

x=2.5 hours

Thus the distance travelled is 2.5×3=7.5 miles

Hence, The rowers travelled 7.5 miles upstream.

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A sample size of approximately 4,148 newborns is required to obtain a 99% confidence interval for the proportion of all newborns who are breast-fed exclusively in the first two months of life to within 2 percentage points.

To calculate the required sample size for a 99% confidence interval with a margin of error (precision) of 2 percentage points for the proportion of newborns breast-fed exclusively in the first two months of life,

we will use the following formula:
\(n = (Z^2 * p * (1-p)) / E^2)\)
where:
n = required sample size
Z = Z-score for the desired confidence level (in this case, 99%)
p = estimated proportion (since we don't have this value, we will use 0.5 for the most conservative estimate)
E = margin of error (2 percentage points, or 0.02 in decimal form)
For a 99% confidence interval, the Z-score is 2.576.

Now, let's plug these values into the formula:
\(n = (2.576^2 * 0.5 * (1-0.5)) / 0.02^2\)
n = (6.635776 * 0.5 * 0.5) / 0.0004
n = 1.658944 / 0.0004
n ≈ 4147.36
Since we cannot have a fraction of a person, we will round up to the nearest whole number.

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Answer:

C) √185cm

Step-by-step explanation:

a² + b² = c², where c is the longest side

4² + 13² = x²

16 + 169 = 185

x² = 185

x = √185cm

Hope this helps!

Using a calculator, you should get

f(x) = 4*e^x

f(2) = 4*e^2 .... replacing every x with 2

f(2) = 29.5562243957433

This is an approximate value. Round this however you need to.

The value of f(2) = 29.5562243957433

For eveluate for f(x)  we put x = 2,

f(x) = 4*e^x

f(2) = 4*e^2 .... replacing every x with 2

f(2) = 29.5562243957433

Therefore, This is an approximate value f(2) = 29.5562243957433.

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Answer:

Step-by-step explanation:

Domain of a function is a set of x-values (input values) for which the function is defined.

Range of a function is a set of y-values (output values) for the given set of input values.

7). Domain → (-∞, ∞)

    Range → (-∞, ∞)

8). Domain → (-∞, ∞)

    Range → [-2, ∞)

9). Domain → [-2, 2]

    Range → [-3, 3]

10). Domain → (-∞, ∞)

    Range → [-1, 1]

Answer:

86 is the correct answer

The range for the measure of the third side of the triangle, given the measures of the two sides (5 ft and 10 ft), is 5 < x < 15 ft.

The range for the measure of the third side of a triangle can be determined by applying the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

In this case, we are given two sides with measures of 5 ft and 10 ft. To find the range for the measure of the third side, we need to consider two scenarios: when the two given sides are the shortest and longest sides, and when one of the given sides is the longest side.

When the two given sides are the shortest and longest sides:

In this scenario, the third side must be longer than the difference between the lengths of the two given sides and shorter than the sum of the two given sides.

So, the range for the third side is (10 - 5) < x < (10 + 5).

Simplifying, the range is 5 < x < 15 ft.

When one of the given sides is the longest side:

In this scenario, the third side must be shorter than the difference between the lengths of the two given sides and shorter than the sum of the two given sides.

So, the range for the third side is (10 - 5) < x < (10 + 5).

Simplifying, the range is 5 < x < 15 ft.

Therefore, the range for the measure of the third side of the triangle, given the measures of the two sides (5 ft and 10 ft), is 5 < x < 15 ft.

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Answer:

21/4 x 51/2 - k use the app Photomate if wrong

Answer:

The answer is C

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

if you see where the red line ends on the right side it is at 170 on the protractor

Answer:

8064

Step-by-step explanation:

Multiply all the sides

6x4x12x2x14

Answer:

384 cu. cm

Step-by-step explanation:

The figure is comprised of two rectangular prisms.  One prism has dimensions of 6, 4 and 2 and the other prism has dimensions of 14, 12 and 2

Vol of a rectangular prism = lwh

Total volume = 6(4)(2) + 14(12)(2)

                      = 48 + 336

                      = 384 cu. cm

a. Yes, the distribution of the number of cases of type II diabetes in the United States can be approximated by a Poisson distribution since it is a rare event and the number of cases is independent of each other.
b. The probability is calculated as P(X ≤ 10) = e^(-12) * 12^10 / 10!, which is approximately 0.112.
c. we can subtract the probability of X ≤ 10 from the probability of X ≤ 15. The probability is calculated as P(10 < X < 15) = P(X ≤ 15) - P(X ≤ 10) = e^(-12) * (12^11 / 11! + 12^12 / 12! + 12^13 / 13! + 12^14 / 14!) ≈ 0.215.
d. The probability of observing 19 or more cases can be calculated using the Poisson distribution formula, P(X ≥ 19) = 1 - P(X ≤ 18) = 1 - e^(-12) * (12^0 / 0! + 12^1 / 1! + ... + 12^18 / 18!) ≈ 0.0002, which is a very small probability.

a. The distribution of the number of cases of type II diabetes in the United States can be approximated by a Poisson distribution if the cases are rare, random, and independent events. Given the incidence rate of 12 per 100,000, it can be considered a rare event, and if we assume the cases are independent and random, we can approximate the distribution using a Poisson distribution. The mean (λ) is equal to the incidence rate, which is 12 cases per 100,000.

b. To find the probability that the number of cases of type II diabetes is less than or equal to 10 per 100,000, we need to calculate the cumulative probability for the Poisson distribution with λ = 12 and k = 10. This can be found using the formula:

P(X ≤ 10) = Σ [e^(-λ) * (λ^k) / k!] for k = 0 to 10

c. To find the probability that the number of cases of type II diabetes is greater than 10 but less than 15 per 100,000, we need to calculate the probability for the Poisson distribution with λ = 12 and k = 11, 12, 13, and 14. This can be found using the formula:

P(10 < X < 15) = Σ [e^(-λ) * (λ^k) / k!] for k = 11 to 14

d. To determine if we would expect to observe 19 or more cases of type II diabetes per 100,000 in the United States, we can find the probability of observing 19 or more cases using the Poisson distribution with λ = 12. This can be found using the formula:

P(X ≥ 19) = 1 - P(X ≤ 18) = 1 - Σ [e^(-λ) * (λ^k) / k!] for k = 0 to 18

If the probability is low (typically less than 0.05), then it would be unlikely to observe 19 or more cases of type II diabetes per 100,000 in the United States.

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The area of the shaded segment in the given circle with radius 24cm and central angle 60° is approximately 301.5929 cm². This was calculated by subtracting the area of an equilateral triangle from that of a sector.

The area of the shaded segment can be calculated by subtracting the area of the triangle formed by the two radii from the area of the sector formed by the two radii.

First, let’s find the area of the sector. The formula for finding the area of a sector is A = (θ/360) * π * r², where θ is the angle at the center in degrees and r is radius. Substituting θ = 60° and r = 24cm, we get:

A = (60/360) * π * 24² A = 1/6 * π * 576 A = 96π

Next, let’s find the area of triangle. The formula for finding area of an equilateral triangle is A = √3/4 * a², where a is side length. Since all sides are equal to radius in this case, substituting a = 24cm, we get:

A = √3/4 * 24² A = √3/4 * 576 A = 144√3

Now we can find area of shaded segment by subtracting area of triangle from that of sector:

Area of shaded segment = Area of sector - Area of triangle = (96π) - (144√3) = 96π - 144√3 cm²

So, the area of shaded segment is approximately 301.5929 cm².

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The missing figure is in the image below