Find the area of the shape.
4 m
17 m
18m
9 m

The values of the points on the graph of the concentration of the drug in the bloodstream, indicates;

1 a. 24 mg/L

b. Increases; [0, 2]

Decreasing; [2, 20

c. The drug is at the maximum concentration at t = 2 hours

The maximum concentration is 64 mg/L

d. 8 hours

e. The concentration after 1 week is minute

The concentration after 1 month is more reduced than the concentration after 1 week.

f. The concentration of the drug for the first 20 hours increases in the first 2 hours, then decreases and approaches the x-axis as the x-value increases.

A graph is a visual display of the ordered pair of a function on the coordinate plane.

1. The graph in the question specifies the concentration of the drug in the bloodstream after t hours in mg/L

a. The graph indicates that the concentration after 8 hours is 24 mg/L

b. The interval over which the concentration increases is; [0, 2)

The interval over which the concentration decreases is; (2, 20]

c. The graph indicates that the drug is at its maximum concentration when the time t = 2 hours

The maximum concentration, based on the peak of the graph is 64 mg/L

d. The concentration of the drug is 16 mg/L at t = 10 hours, therefore, the time it takes the concentration to decrease to 16 mg/L from the peak therefore is; 10 hours - 2 hours = 8 hours

e. The shape of the graph indicates that the concentration of the drug in the bloodstream continuously decreases after the first two hours, therefore, the concentration after a week will be approximately 0

The concentration after 1 month will trace amounts

f. The concentration of the drug in the bloodstream over the first 20 hours indicates that concentration increases within the first 2 hours, and decreases rapidly in the next 8 hours, such that after 20 hours, the concentration in the blood is less than 4 mg/L

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Answer:

8.01 ft/sec

Step-by-step explanation:

Distance = 26.2 miles

Time is taken to run the distance = 4.8hrs

Average speed = ??

Average speed = distance/time

= 26.2miles /4.8hr

= 5.46 miles/hr

Convert 5.46 miles/hr to ft/sec

1 mile = 5280 ft

We have 5.46*5280 = 28828.8 ft/hr

28828.8/3600 = 8.01 ft/sec

Please give the brainliest, really appreciated. Thank you

Answer:

The range of the function is all real numbers less than or equal to 9.

Step-by-step explanation:

Find the domain by finding where the function is defined. The range is the set of values that correspond with the domain.

have a great day and thx for your inquiry :)

If there are 220 pieces of 20 cents, then there are 380 pieces of 50 cents in the container.

Thabang conserves money by depositing coins in a money box. There are 600 coins in the money box, including 20- and 50-cent pieces.

We proceed as follows to determine how many 50 cent pieces are in the container if there are 220 pieces of 20 cent.

Assume that,

x = number of 20 cents

y = number of 50 cents

So, the total number of cents in the container is 600,so

x + y = 600

Making y the formula's subject, we therefore get that

y = 600 - x

Since x = 220

y = 600 - 220

y= 380

So, there are 380 fifty cents.

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The correct Question is

Thabang save money by putting coins in a money box. The money box has 600 coins that consist of 20 cents and 50 cents. So calculate how many 50 cents pieces are in the container if there are 220 pieces of 20 cents

Answer:

C(x) = 2x^3 + 2x^2 - 18x - 11

Step-by-step explanation:

Step 1: To model the water used by the car wash on a shorter day, we can subtract the amount of water saved from the original water usage function.

Step 2: Therefore, we can define the new function C(x) as: C(x) = W(x) - D(x)

Step 3: Substituting the given functions for W(x) and D(x), we get: C(x) = (3x^3 + 4x^2 - 18x + 4) - (x^3 + 2x^2 + 15)

3x^3 + 4x^2 - 18x + 4 -x^3 - 2x^3 - 15

Step 4: Simplifying by combining like terms, we get:

C(x) = 2x^3 + 2x^2 - 18x - 11

Step 5: Therefore, the function C(x) that models the water used by the car wash on a shorter day is: C(x) = 2x^3 + 2x^2 - 18x - 11

6E6 is a number written in scientific notation, which means that it represents 6 times 10 raised to the power of 6. To write this number in standard form, we need to evaluate the exponent and write the number in expanded form.

6E6 = 6 x 10^6

Evaluating the exponent 6 means multiplying 6 by 10 six times:

6 x 10^6 = 6 x 10 x 10 x 10 x 10 x 10 x 10

Simplifying the expression, we get:

6 x 10^6 = 6,000,000

Therefore, 6E6 in standard form is 6,000,000.

According to the information, we can infer that the sign should read: "Area of land: 178.35 square meters."

To find the area of the trapezoid, we need to use the formula:

where,

From the figure, we can see that:

Substituting these values into the formula, we get:

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The best prediction possible for the number of times you will roll a six when rolling a six-sided die six times is one.

The best prediction possible for the number of times you will roll a six in a six-sided die depends on the probability of getting a six in each roll. The probability of getting a six in a single roll of a six-sided die is 1/6 or 16.67%.
Since the rolls are independent events, the probability of rolling a six in any one of the six rolls is still 1/6 or 16.67%. Therefore, the best prediction possible for the number of times you will roll a six is one.
However, it is important to note that probability is not a guarantee, and it is possible to roll a six more than once or not at all. But based on the laws of probability, one is the most likely outcome for the number of times you will roll a six in six rolls of a six-sided die.
In summary, the best prediction possible for the number of times you will roll a six when rolling a six-sided die six times is one.

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Fourth month in business, George's new store will have a profit of $4500. The option "The new store will have a profit of $4500 after its fourth month in business" is the correct response.

To determine the meaning of (r - c)(4) for George's new store, we need to evaluate the expression (r - c) at x = 4.

Given that r(x) represents the store's revenue and c(x) represents the store's expenses, (r - c)(4) represents the difference between the revenue and expenses of the store after four months.

Substituting x = 4 into the expressions for revenue and expenses, we get:

r(4) = (4)^2 + 6(4) + 10 = 16 + 24 + 10 = 50

c(4) = (4)^2 - 4(4) + 5 = 16 - 16 + 5 = 5

Thus, (r - c)(4) = r(4) - c(4) = 50 - 5 = 45.

Therefore, (r - c)(4) means that after its fourth month in business, George's new store will have a profit of $4500 (since r(x) and c(x) are measured in hundreds of dollars).

The option "The new store will have a profit of $4500 after its fourth month in business" is the correct response.

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The image of the point after a reflection over the line y = -x is (-6, 8)

From the question, we have the following parameters that can be used in our computation:

Point = (-8, 6)

Transformation rule

A reflection over the line y = -x

The rule of a reflection over the line y = -x is

(x, y) = (-y, -x)

Using the above as a guide, we have the following:

Image = (-6, 8)

Hence the image of the point after a reflection over the line y = -x is (-6, 8)

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Answer:

f(x) = x^2

f'(x) = 2x, so f'(1.8) = 2(1.8) = 3.6

B is the correct answer.

The value of the function , f'(1.8) = 3.6. option B

A function can simply be defined as an expression, a law or a rule that is used to represent the relationship between two variables in an equation.

These variables are listed as;

From the information given, we have that;

The function , f(x) is represented as x²

This is written as;

f(x) = x²

Find the derivative of the function, we get;

f'(x) = 2x

Now, substitute the value of x as 1.8 in the function, we have that;

f'(1.8) = 2(1.8)

expand the bracket, we have that;

f'(1.8) = 3.6

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Answer:

Therefore, the mass of the trolley (T) and the mass of the watermelons (W) cannot be determined uniquely based on the given information. We can only express their relationship using Equation (3): 3T + W = 33.

Step-by-step explanation:

Let's assign variables to the masses involved to solve the problem systematically.

Let's say:

Mass of the trolley = T kg

Mass of the mangoes = M kg

Mass of the watermelons = W kg

According to the given information:

The total mass of the trolley and mangoes is 11 kg:

T + M = 11 -- Equation (1)

The mass of the watermelons is three times the mass of the mangoes:

W = 3M -- Equation (2)

Now, we can use these equations to find the values of T, M, and W.

From Equation (2), we can express M in terms of W:

M = W / 3

Substitute this value of M into Equation (1):

T + W / 3 = 11

Multiply through by 3 to eliminate the fraction:

3T + W = 33 -- Equation (3)

Now, we have a system of two equations (Equation 2 and Equation 3) with two unknowns (T and W). We can solve this system to find the values.

Since we don't have a specific value for any variable, we can express the solution in terms of the variables.

Therefore, the mass of the trolley (T) and the mass of the watermelons (W) cannot be determined uniquely based on the given information. We can only express their relationship using Equation (3): 3T + W = 33.

To find the measures of angles T and S, we can use the fact that the sum of the angles in a triangle is always 180 degrees.

m∠R + m∠S + m∠T = 180°

We know that m∠R = 29°, and we can use the Law of Cosines to find the measure of angle S:

cos(m∠S) = (6^2 + 3^2 - x^2) / (2 * 6 * 3) = 0.9167

m∠S = cos^-1(0.9167) = 23.6°

Now we can use the fact that the sum of the angles in a triangle is 180 degrees to find the measure of angle T:

m∠T = 180° - m∠R - m∠S = 180° - 29° - 23.6° = 127.4°

Therefore, m∠T is 127.4° and m∠S is 23.6°.

mm  m mm Answer:

Step-by-step explanation:

mnnmnmn

The coordinates of the triangle after transformation are:

L′(1, −5), M′(1, 0), N′(2, −5)

There are different methods of transformation such as:

Translation

Rotation

Reflection

Dilation

Now, a rotation of 180 degrees counterclockwise about the origin is equivalent to the coordinate transformation given as (x, y) → ( −x, −y) . Meanwhile, a rotation of 270 degrees counterclockwise about the origin is equivalent to the coordinate transformation (x, y) → ( y, -x) .

Applying the rule for rotation of 180 degrees counterclockwise to the coordinates L(−1, 5), M(−1, 0), N(−2, 5) gives us:

L'(1, -5), M'(1, 0), N'(2, -5)

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The linear equation is solved and slope is m = (24 - b) / 3 = 8

Given data ,

a)

To write a linear function that models the relationship between the cost, c, of octopus and the weight, w, in pounds, we need to determine the equation of a line in slope-intercept form, y = mx + b, where y represents the cost of octopus (c) and x represents the weight in pounds (w).

We are given that three pounds of octopus costs $24. This gives us a point on the line, which is (3, 24). Using this point, we can find the slope (m) of the line.

Let's use the slope formula:

m = (y2 - y1) / (x2 - x1)

Taking (3, 24) as our first point, and choosing another arbitrary point on the line, let's say (0, b), we can substitute the coordinates into the slope formula:

m = (24 - b) / (3 - 0)

Since the slope is constant for the linear function, we can set this expression equal to m:

m = (24 - b) / 3

Now, we have the slope (m) in terms of b. To find the value of b, we can substitute the coordinates of the known point (3, 24) into the slope-intercept form:

24 = m * 3 + b

Substituting the expression for m:

24 = [(24 - b) / 3] * 3 + b

Simplifying:

24 = 24 - b + b

24 = 24

Since the equation is true for any value of b, we can choose any value for b. Let's choose b = 0 for simplicity.

Plugging in the values of m = (24 - b) / 3 and b = 0, we have:

m = (24 - 0) / 3

m = 24 / 3

m = 8

Therefore, the slope of the linear function is 8

b)

The meaning of the slope in this context is that for each additional pound of octopus purchased, the cost increases by $8. This means that the cost of octopus is increasing at a constant rate of $8 per pound. The positive slope indicates that as the weight of the octopus increases, the cost also increases.

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The standard equation of the circle with center (-5,12) that passes through the point (-9,15) is (x + 5 )² + (y - 12)² = 25.

The standard form equation of a circle with center (h, k) and radius r is:

(x - h)² + (y - k)² = r²

Given that; the center is (-5, 12) and a point on the circle is (-9, 15).

First, we determine the radius, we can use the distance formula between the center and the point on the circle:

[tex]r = \sqrt{(x_2 - x_1)^2+(y_2 - y_1)^2} \\\\r = \sqrt{(-9 - (-5))^2+(15 - 12)^2} \\\\r = \sqrt{(-9 + 5)^2+(15 - 12)^2} \\\\r = \sqrt{(-4)^2+(3)^2} \\\\r = \sqrt{16+9} \\\\r = \sqrt{25} \\\\r = 5[/tex]

Now, center: (-5, 12)

h = -5

k = 12

and r = 5

Plug these into the equation above:

(x - h)² + (y - k)² = r²

(x - (-5) )² + (y - 12)² = 5²

Simplify

(x + 5 )² + (y - 12)² = 25

Therefore, the equation of the circle is (x + 5 )² + (y - 12)² = 25.

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Note that he probability that one of the eggs selected at random was at least 19.75 mm long but less than 22.75 mm long  is 0.6%

The percent of eggs total 100.

Based on the frequency, we now that the eggs that are at least 19.75 mm include:

18.75 - 19.75 = 0.8

those that are less than 22.75mm long are:

19.75-20.75 = 4.0

20.75 - 21.75 = 17.3
21.75 - 22.75 = 37.9

Thus, the total of their frequencies are:

0.8 + 4.0 + 17.3 + 37.9  = those that are less than 22.75mm long but at least 19.75 long.

= 60

Thus, the probability that one of the eggs selected at random was at least 19.75 mm long but less than 22.75 mm long  is 0.6%

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Full Question:

A biologist measured the lengths of hundreds of cuckoo bird eggs. Use the relative frequency distribution below to answer the questions that follow.

what is the probability that one of the eggs selected at random was at least 19.75 mm long but less than 22.75 mm long ? See attached image.

The area of the given parallelogram is 12 yd².

Given that a parallelogram of base 2 yds and height 6 yds,

We need to find the area of the parallelogram,

A parallelogram is a quadrilateral in which the opposite sides are parallel and equal. Parallelograms are classified into three main types: square, rectangle, and rhombus, and each of them has its own unique properties.

A parallelogram is a special kind of quadrilateral that is formed by parallel lines. The angle between the adjacent sides of a parallelogram may vary but the opposite sides need to be parallel for it to be a parallelogram. A quadrilateral will be a parallelogram if its opposite sides are parallel and congruent.

So, the area of a parallelogram = base × height

so the area of the given parallelogram = 6 × 2 = 12 yd²

Hence the area of the given parallelogram is 12 yd².

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1.

If x > 5, then the absolute value on |x+3| isn't actually doing anything.  

|x+3| = x+3 (without the absolute value) since x+3 is positive for x > 5.

2.

If x > 2, then the absolute value on |x+3| again isn't actually doing anything.  

|x+3| = x+3 (without the absolute value) since x+3 is positive for x > 2.

You'd have to be dealing with x-values less than -3 for the absolute value to impact the calculation.  Only for x < -3 would "x+3" not be positive and only then does the absolute value change the result.

Answer:

The correct answer is C.

Step-by-step explanation:

you use y = mx +b

The probability of choosing a red golf ball as a fraction would be = 1/10.

To calculate the probability of choosing a red ball at random, the formula that should be used is given below.

That is;

Probability = possible outcome/sample space

Total number of yellow balls= 8

Total number of red ball= 3

Total number of orange balls = 5

Total number of green balls = 6

Total number of pink balls = 8

possible outcome = 3 balls(red)

Sample space = 8+3+5+6+8= 30 balls

Then probability= 3/30 = 1/10

Therefore, when a ball is selected at random the probability that Zane would pick a red ball out of all the golf coloured balls would be= 1/10.

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To find the length of an arc intercepted by a central angle in a circle, we need to use the formula:

Arc Length = (Angle in radians) * (Radius)

In this case, the circle has a diameter of 9 meters, which means the radius is half of the diameter, so the radius is 4.5 meters.

The central angle measures radians, which we need to convert to radians. To convert a fraction to radians, we divide the numerator by the denominator and multiply by π (pi).

Radians = (7/18) * π

Now we can calculate the length of the arc:

Arc Length = (7/18) * π * 4.5

Simplifying this expression, we can calculate the approximate length of the arc.

It's important to note that the length of the arc is proportional to the measure of the central angle and the radius of the circle. The larger the central angle or the radius, the longer the arc.

In this case, the length of the arc will be determined by the specific value of the central angle in radians and the radius of the circle.

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Answer:

266.9cm

Step-by-step explanation:

there's no explanation.

Answer:

52.334

Step-by-step explanation:

3.14[phi] x 5 cm =15.70 x 10 [height] = 157.0 x 1/3 = 52.334

cone = phi x d x height x1/3

this is the volume btw

The value of f (2) for the function is,

⇒ f (2) = undefined

We have to given that;

The function is defined as;

⇒ f (x) = { x³ + 18x² + 99x + 162  ; x ≤ - 3

          = { (3x - 6) / (x³ - 7x + 6)  ; - 3 < x ≤ 2

          = { √(x² - 4)  ; x > 2

Hence, We can see that;

At x = 2;

Function is defined as;

⇒ f (x) =  (3x - 6) / (x³ - 7x + 6)

Plug x = 2;

⇒ f (2) = (3 × 2 - 6) / (2³ - 7×2 + 6)

⇒ f (2) = (6 - 6) / (8 - 14 + 6)

⇒ f (2) = 0 / 0

⇒ f (2) = undefined

Thus, The value of f (2) for the function is,

⇒ f (2) = undefined

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The surface area of four boxes is 4032cm².

To calculate the surface area of one box, we need to find the area of each of its six faces and then add them up.

The top and bottom faces are both squares with sides of 12cm, so each has an area of 12cm x 12cm = 144cm².

The front and back faces are both rectangles with dimensions of 12cm x 15cm,

So each has an area of 12cm x 15cm = 180cm².

The two side faces are also rectangles with dimensions of 12cm x 15cm, so each has an area of 12cm x 15cm = 180cm².
Adding up the areas of all six faces, we get:
144cm² + 144cm² + 180cm² + 180cm² + 180cm² + 180cm² = 1008cm²
Therefore, the surface area of one box is 1008cm².
To find the surface area of four boxes, we just need to multiply the surface area of one box by 4:
The surface areas of all the faces together:

(144 x 2) + (180 x 2) + (180 x 2) = 504 sq.cm

The surface area of one box is 504 square centimeters.

Since you want the surface area of four boxes, simply multiply this number by 4:

504 sq.cm x 4 = 2016 sq.cm
1008cm² x 4 = 4032cm²
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