I’m struggling hardcore and I’m an online student!! I need this done by tomorrow but I am so confused on everything

Answer: i believe your answer is 21x=100

Step-by-step explanation: hope this helps

The number of miles Ling Jog than Trent can be written as the expression 2.8x - 8

Trent's expression:

2.2x + 8

Ling's expression:

5x

Where,

Number of hours= x

Number of hours Ling Jog than Trent =Ling's expression - Trent's expression

= 5x - (2.2x + 8)

= 5x - 2.2x - 8

= 2.8x - 8

Therefore, Ling jog 2.8x - 8 miles than Trent.

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Sarah's score of 85 puts her at the 40th percentile in her class.

This means that 40% of the students in her class got a score equal to or below her score, and 60% of the students got a score above her score.

Percentile is a statistical measure that indicates the percentage of a population that is below or equal to a certain score or value.

If a student scores in the 90th percentile, it means that they have performed better than 90% of the other students in their class.

To calculate the percentile rank of a student, you need to follow these steps:

Determine the total number of scores in the class, including the student's score.

Sort the scores in ascending order.

Count the number of scores that are below the student's score.

This is called the student's rank.

Divide the student's rank by the total number of scores and multiply the result by 100.

This gives you the student's percentile rank.

Let's say that a class of 30 students took a math test, and one student, Sarah, received a score of 85.

To determine Sarah's percentile rank, you would follow these steps:

The total number of scores in the class is 30.

Sorting the scores in ascending order, Sarah's score of 85 falls between the 21st and 22nd scores.

There are 20 scores below Sarah's score of 85.

Her rank is 21.

Dividing Sarah's rank (21) by the total number of scores (30) and multiplying by 100 gives us her percentile rank:

(21/30) × 100 = 70.

This means that Sarah scored higher than 70% of the other students in the class.

Percentile rank is a useful measure for comparing individual scores to a larger group or population.

Percentile rank, you can easily determine a student's score falls in comparison to their peers.

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Answer:

True for all N

Step-by-step explanation:

Answer:

True for all N :)

Step-by-step explanation:

Answer:

746.4

Step-by-step explanation:

Answer:

x-intercept is 0

y-interpret is (0,-5)

Answer:

Step-by-step explanation:

x- intercept found when y = 0

y-intercept found when x = 0

The equation that can be used to solve for c in the given right triangle is the sine function: c = (3 meters) / sin(50°).

In the given right triangle ABC, we are given that angle ACB is a right angle (90°) and angle CBA is 50°. We also know the length of side AC, which is 3 meters. The length of side CB is denoted by "a," and the length of the hypotenuse AB is denoted by "c." To solve for c, we can use the trigonometric function sine (sin). In a right triangle, the sine of an acute angle is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse. In this case, we can use the sine of angle CBA (50°) to find the ratio between side CB (a) and the hypotenuse AB (c).

The equation c = (3 meters) / sin(50°) represents this relationship. By dividing the length of side AC (3 meters) by the sine of angle CBA (50°), we can find the length of the hypotenuse AB (c) in meters. Using the given equation, we can calculate the value of c by evaluating the sine of 50° (approximately 0.766) and dividing 3 meters by this value. The resulting value will give us the length of the hypotenuse AB, completing the solution for the right triangle.

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Answer:

first one

Step-by-step explanation:

the sum of (9k-4) =3542

so it will be the first one because

28((5+248)/2)=3542

Answer:

a

Step-by-step explanation:

cuz i milk da cows homie, all fo my edge brothas, no cap on jaw, j keepin it real fo yall homies

Answer:

Roy is incorrect.

Step-by-step explanation:

The price of the item has already had 15% taken of. 15% off of $100 is $85.

Now take 10 percent of off that, and you get $76.50. If you were to take twenty-five percent off of the original $100 like Roy said, you would have got $75. Although It is only a small difference, Roy is still wrong.

left to right so -infinity, 3

Answer:

To stay within budget, she must use 3.9 gigabytes.

Caroline can use approximately 3.9 gigabytes of data while staying within her budget of $74 per month.

Let's assume the number of gigabytes of data Caroline can use while staying within her budget is represented by the variable "x."

The flat cost per month is $54.50, and Caroline pays an additional $5 per gigabyte.

If she wants to keep her bill at $74 per month, the equation can be set up as follows:

54.50 + 5x = 74

To solve for "x," we can isolate the variable on one side of the equation. First, subtract 54.50 from both sides:

5x = 74 - 54.50

5x = 19.50

Finally, divide both sides by 5:

x = 19.50 / 5

Simplifying the division gives us:

x = 3.9

Therefore, Caroline can use approximately 3.9 gigabytes of data while staying within her budget of $74 per month.

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Answer:

52

Step-by-step explanation:

The remainder when x³ - 1 is divided by (x + 3) is  -28

The functions are given as

x 3 1 is divided by x 3

Rewrite them as

f(x) = x³ - 1 is divided by (x + 3)

Set the divisor to 0

So, we have

x + 3 = 0

Determine the value of x

This gives

x = -3

By the remainder theorem

Substitute x = -3 in the function f(x)

So, we have

f(-3) = (-3)³ - 1

Evaluate the expression

f(-3) = -28

By the remainder theorem, this represents the remainder

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Answer:

The density of the stone is 6 g/cm³

Step-by-step explanation:

The rule of denisty is d = M ÷ V, where

Let us use this rule to solve the question

∵ The volume of the stone is 30 cm³

∴ V = 30 cm³

∵ The mass of the stone is 180 grams

∴ M = 180 g

→ Substitute them in the rule above to find d

∵ d = 180 ÷ 30

∴ d = 6 g/cm³

∴ The density of the stone is 6 g/cm³

Answer:

3

Step-by-step explanation:

736,124

It is in the 10 thousandths place

Theorem 3.1.9(d) states that if f(x) is a continuous function at c and g(x) is a continuous function at f(c), then the composition g(f(x)) is continuous at c.

To prove this theorem using the Sequential Characterization of Continuity, we need to show that for any sequence {x_n} that converges to c, the sequence {g(f(x_n))} converges to g(f(c)).

Let {x_n} be a sequence that converges to c. Since f(x) is continuous at c, by the Sequential Characterization of Continuity, we know that f(x_n) converges to f(c).

Similarly, since g(x) is continuous at f(c), by the Sequential Characterization of Continuity, we know that g(f(x_n)) converges to g(f(c)).

Therefore, we have shown that for any sequence {x_n} converging to c, the sequence {g(f(x_n))} converges to g(f(c)). This satisfies the conditions of the Sequential Characterization of Continuity, which proves that the composition g(f(x)) is continuous at c.

Hence, Theorem 3.1.9(d) holds true based on the Sequential Characterization of Continuity.

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If one angle in an isosceles triangle is 90 degrees then the measure of each angle of an isosceles triangle will be 45 degrees

What is an isosceles triangle ?

A triangle with two equal sides is said to be isosceles. Also equal are the two angles that face the two equal sides. In other terms, an isosceles triangle is a triangle with two sides that have the same length.

If the sides AB and AC of a triangle ABC are equal, then the triangle ABC is an isosceles triangle with B = C. "If the two sides of a triangle are congruent, then the angle opposite to them is likewise congruent," states the theorem that characterizes the isosceles triangle.

Since this triangle's two sides are equal, the base of the triangle is the side that is not equal.

As we know that in an isosceles triangle set of two angles are equal

And

we also know that sum of all the angles of a triangle is 180 degrees

So, According to the question

90 degrees + other angles =180 degrees

other angles = 90 degrees

one angle = 90/2

one angle = 45 degree  

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Answer:

°F = 356

Step-by-step explanation:

°C = (°F - 32) ÷ 1.8

180 = (°F - 32) ÷ 1.8

180×1.8 = °F - 32

324 = °F - 32

°F = 324 + 32

°F = 356

The probability that a class of 50 has an average score that is less than 77 is approximately 11.90%.

To solve this problem, we need to use the central limit theorem, which states that the distribution of sample means will be approximately normal with a mean equal to the population mean and a standard deviation equal to the population standard deviation divided by the square root of the sample size.
In this case, we have a population of marks on a biology final test that is normally distributed with a mean of 78 and a standard deviation of 6. We want to know the probability that a class of 50 has an average score that is less than 77.
Using the central limit theorem, we can calculate the standard error of the mean as follows:
standard error of the mean = standard deviation / square root of sample size
standard error of the mean = 6 / √50
standard error of the mean = 0.8485
Next, we need to calculate the z-score for a sample mean of 77:
z-score = (sample mean - population mean) / standard error of the mean
z-score = (77 - 78) / 0.8485
z-score = -1.18
We can use a standard normal distribution table or calculator to find the probability associated with a z-score of -1.18. The probability of a sample mean less than 77 is approximately 0.1190 or 11.90%.
Therefore, the probability that a class of 50 has an average score that is less than 77 is approximately 11.90%.

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Answer:

The will be 937 bears left in 6 years.

Step-by-step explanation:

If the polar bear population is cut in half every year, then after one year there will be 60,000/2 = 30,000 polar bears left. After two years, there will be 30,000/2 = 15,000 polar bears left, and so on.

Answer:

1584

Step-by-step explanation:

The take-home salary would be $1584 each month if Erin earns $2200 per month her deduction amount to 28% of her paycheck.

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

It is given that:

Erin earns $2200 per month.

The deduction amount to 28% of her paycheck.

Let's assume the 28% is deducted from the monthly salary.

The total dedcution = 28% of 2200

The total dedcution = (28/100)x2200

The total dedcution = 0.28x2200

The total dedcution = $616

Total net amount = Take home = 2200 - 616

Take home = 2200 - 616

Take home = $1584

Thus, the take-home salary would be $1584 each month if Erin earns $2200 per month her deduction amount to 28% of her paycheck.

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The area of the rectangle is the length times the width.

Now let's convert all these fractions into improper fractions to make it easier to multiply

  \(4\frac{3}{4} =\frac{19}{4} \\1\frac{1}{6} =\frac{7}{6}\)

Now let's multiply them for the area = \(\frac{19}{4} *\frac{7}{6} =\frac{133}{24} =5\frac{13}{24}\) square feet.

Hope that helped!

Let:

x = pounds of sands

y = pounds of cement

32 pounds of sand are needed

Answer:

\(\boxed{n = - 5}\)

Step-by-step explanation:

\(\textrm{We have the following equation:}\\\\\dfrac{n}{5}+\dfrac{\left(n-3\right)}{2}=n\\\\\textrm{ and we are asked to solve for n}\)

Solution Steps

Multiply throughout by 10 which is the LCM of the denominators,  5 and 2

\(\dfrac{n}{5}\cdot \:10+\dfrac{n-3}{2}\cdot \:10=n\cdot \:10\\\\2n + 5(n-3) = 10n\\\)

Expand the brackets: \(5(n-3) = 5n - 15\\\\\)

The equation becomes:

2n + 5n - 15 = 10n

Add similar terms:

7n - 15 = 10n

Move 15 to the right side:

7n = 10n + 15

Move 10 to the left side

7n - 10n = 15

- 3n = 15

n = -15/3

\(\boxed{n = - 5}\)

Answer:

x = 20°

Step-by-step explanation:

Lines and Angles

Rays PM and MQ divide the straight-line LN angle of 180° into three angles: 45°, 6x-5, and x.

Thus, we have:

45 + 6x - 5 + x = 180

Simplifying:

40 + 7x = 180

Subtracting 40:

7x = 180 - 40

7x = 140

Dividing by 7:

x = 140/7 = 20

x = 20°

Answer:

D

Step-by-step explanation:

the last graph

Answer:

-2 and 18

Step-by-step explanation:

a + b = 16

ab = -36

a = (16-b)

b(16-b) = -36

16b - b² = -36

-b² + 16b + 36 = 0

b² - 16b - 36 = 0

(b+18)(b-2) = 0