30% of 150? I can't work it it out​

Answer:

$5

Step-by-step explanation:

$5 appeared more in the prices

Answer:

5 dollars

Step-by-step explanation:

cuz I just know

Answer:

The answer is 3x+4y<-12

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

Given a quadratic equation ax² + bx + c = 0, plug the coefficients into the expression b² - 4ac to see what results:

5² - 4(-2 × -3)

Answer:

b on edge

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Got it right on Edge

The area of the shaded region of the circle is 10.972 square inches.

The formula for area of a circle sector is;

A = (θ/360) * πr²

We are given;

Radius of circle = 92 inches

Central angle = 7π/15

Thus;

Area of given sector = (7π/15)/360 * π * 92²

Area of given sector = 7π/15 * 1/360 * π * 92²

Area of given sector = 10.972 square inches

Thus, we can conclude that the area of the shaded region of the circle is 10.972 square inches.

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Answer: D) -20.99

Step-by-step explanation:

-4.97-2.36+-5.19-8.47 = -20.99

Answer:

78

Step-by-step explanation:

Sorry I've never studies this in school :(

But to be fair I'm only in 7th so hopefully I'll study it eventually lol

Answer:

-2 is the answer

Step-by-step explanation:

Answer:

\(\dfrac{-1}{5}\)

Step-by-step explanation:

\(\dfrac{15}{7}*\dfrac{-21}{9} = \dfrac{5}{1}*\dfrac{-3}{3}\\\\=5*(-1)\\\\ =-5\)

    \(\sf \text{Reciprocal of (-5) = $\dfrac{-1}{5}$}\)

The absolute value of x=5 is 5.

The absolute value of a number is its positive equivalent of the number

For instance, the absolute value of -5 is 5 and the absolute value of 5 is also 5.

Generally, it is denoted by the symbol |x|.

So, we have

The absolute value of x=5

This gives

x = |5|

Evaluate

x = 5

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To estimate the number of households in the sample that lost electricity, we can use the mean of the relevant distribution,

A) The relevant random variable is the number of households in the sample that lost electricity. Since we know that 7% of households in the city lost electricity, we can use this as the probability of any one household in the sample losing electricity. Therefore, the mean of the relevant distribution is:

Mean = np = 50 * 0.07 = 3.5 households

B) To find the standard deviation of the distribution, we use the formula:

Standard deviation = √(np(1-p))

where n is the sample size and p is the probability of success (in this case, the probability of a household losing electricity). Plugging in the values, we get:

Standard deviation = √(50 * 0.07 * (1 - 0.07)) = 1.51 households

Therefore, our estimate is that the sample will have an average of 3.5 households that lost electricity, with a standard deviation of 1.51 households.

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Answer:

dots dots tods jajtikalaj majc kala mo meroonnn anoo asa ka

The total charge on the rod is approximately 12.6424nC, or 2.0nC considering the correct significant figures.

To find the total charge on the rod, we need to integrate the charge density function over the length of the rod. Given that the charge density is non-uniform and varies with position along the rod, we can express the charge density as a function of x, where x is the distance from the left end of the rod.

The charge density function is given as λ(x) = (2.0nC/cm) * e^(-x/10).

To find the total charge, we integrate the charge density function from x = 0 to x = 10 cm:

Q = ∫(0 to 10) λ(x) dx.

Substituting the given charge density function into the integral, we have:

Q = ∫(0 to 10) (2.0nC/cm) * e^(-x/10) dx.

Integrating this expression gives us:

Q = -20nC * [e^(-x/10)] evaluated from 0 to 10.

Evaluating the expression at x = 10 and subtracting the value at x = 0, we get:

Q = -20nC * (e^(-10/10) - e^(0/10)).

Simplifying further:

Q = -20nC * (e^(-1) - 1).

Using the value of e (approximately 2.71828), we can calculate:

Q = -20nC * (2.71828^(-1) - 1).

Q ≈ -20nC * (0.36788 - 1).

Q ≈ -20nC * (-0.63212).

Q ≈ 12.6424nC.

Taking the absolute value of the charge (since charge cannot be negative), we find:

Q ≈ |12.6424nC|.

Therefore, the total charge on the rod is approximately 12.6424nC, or 2.0nC considering the correct significant figures.

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PROBLEMS. Write your answer in the space provided or on a separate sheet of paper. Show all work, and don't forget units! Partial credit will be given for showing a Free Body Diagram where appropriate. 11) A 10 cm long rod has a non-uniform charge density given by λ(x)=(2.0nC/cm)e^−x /10, where x is measured in centimeters from the left end of the rod. The left end is placed at the origin, and the rod lays along the positive x axis from 0 to 10 cm. a) What is the total charge on the rod?

Using it's concept, the experimental probability that the next boat to dock will be from North Carolina is given by: 5/13.

A probability is given by the number of desired outcomes divided by the number of total outcomes. For an experimental probability, these number of outcomes are taken from previous trials.

In this problem, there are 13 boats, of which 5 were from North Carolina, hence the experimental probability that the next boat to dock will be from North Carolina is given by: 5/13.

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Answer:

Therefore, the circumcenter of triangle ABC is the point (−3/2,−5).

Step-by-step explanation:

To find the circumcenter of triangle ABC, we need to find the point where the perpendicular bisectors of the sides intersect.

First, let's find the equations of the perpendicular bisectors of AB and BC.

The midpoint of AB is:

((−7−4)/2,(−8+4)/2) = (−11/2,−2)

The slope of AB is:

(4−(−8))/(−4−(−7))=12/3=4

So the slope of a line perpendicular to AB is:

−1/4

Therefore, the equation of the perpendicular bisector of AB is:

y−(−2)=−1/4(x−(−11/2))

y+2=1/4(x+11/2)

y=1/4x−(23/4)

Now let's find the midpoint and slope of BC.

The midpoint of BC is:

(−(4−7)/2,(4+4)/2) = (−3/2,4)

The slope of BC is:

(4−4)/(−4−(−7))=0/3=0

So the slope of a line perpendicular to BC is undefined.

Therefore, the equation of the perpendicular bisector of BC is simply:

x=−3/2

Now we need to find where these two lines intersect. Substituting the equation of the second line into the first, we get:

y=1/4x−(23/4)

x=−3/2

So:

y=1/4(−3/2)−(23/4)

y=−5

Therefore, the circumcenter of triangle ABC is the point (−3/2,−5).

A grouped frequency distribution is the name given to the data presentation in Exercise 2 when it is altered by classifying the data. The lower class limit is 80 and the upper class limit is 89 if one class in such a distribution ranges from 80 to 89.

What is the formula for grouped frequency distribution?

What is the clustered frequency distribution formula?

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The complete question is -

If the data presentation in Exercise 2 is varied by organizing the data into classes, the data presentation is called a ______________. If one class in such a distribution is 80-89, the lower class limit is 80 and the upper class limit is 89.

Answer:

C

Step-by-step explanation:

C) 1.4

No, the plan will not work because tan B = 8/5; B ≈ 58°

There are three primary trigonometric ratios for a right angle triangle and they are:

sin x = opposite/hypotenuse

cos x = adjacent/hypotenuse

tan x = opposite/adjacent

To get angle B, we will make use of trigonometric ratios to get:

tan B = 8/5

tan B = 1.6

B = tan⁻¹1.6

B = 58°

From the ramp, we can see that the angle is greater than what Gael wants to build and as such we can say it will not work.

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Answer:

Sister Is a PIG

Step-by-step explanation:

and Your Friends Gets her Scraps

The second equation is= x+y=125.

According to our question-

After the first quick wash, each additional quick wash costs $5.

Y premium washes cost $8 per after the first one, which cost $8.

They combined rapid and premium washes to make $775, for a total profit of $(5x+8y), or $775. The initial equation reads

5x+8y=775.

2. They had washed 125 vehicles, x using rapid wash and y using premium wash, for a total of x+y. The second equation is then

x+y=125.

Hence, The second equation is= x+y=125.

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The law of large numbers is a fundamental concept in probability theory that describes the behavior of the average of a large number of independent random variables.

It states that as the sample size increases, the sample mean will converge to the true population mean, and the sample proportion will converge to the true population proportion.

In other words, the larger the sample size, the more reliable the sample mean and proportion will be as an estimate of the true population mean and proportion. This is because the variation in the sample mean and proportion decreases as the sample size increases, and the sample becomes more representative of the population. This principle is widely used in statistics, and it underpins many statistical methods and techniques.

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The solution to the differential equation y" - 8y' + 16y = 24x + 2 is y = (c1 + c2 x) e^(4x) - 3x + 1 plus any constants determined by initial or boundary conditions.

To solve the given differential equation y" - 8y' + 16y = 24x + 2 using the method of undetermined coefficients, we first find the complementary solution of the homogeneous equation y" - 8y' + 16y = 0:

The characteristic equation is r^2 - 8r + 16 = 0, which has a double root of r = 4. Therefore, the complementary solution is y_c = (c1 + c2 x) e^(4x).

Next, we need to find a particular solution for the non-homogeneous equation. Since the right-hand side has two terms, we can try a particular solution of the form y_p = Ax + B for the homogeneous term and y_p = C for the constant term.

Substituting this form into the differential equation, we get:

y_p" - 8y_p' + 16y_p = 24x + 2

Taking the derivatives and plugging them back into the equation, we get:

-8A + 16B + 16C = 2

0 + 0 + 16C = 24

Solving for A, B, and C, we get A = -3, B = -1/2, and C = 3/2.

Therefore, the particular solution is y_p = -3x - 1/2 + 3/2 = -3x + 1.

The general solution is then y = y_c + y_p = (c1 + c2 x) e^(4x) - 3x + 1.

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The world record for memorizing and reciting the most digits of pi is held by Rajveer Meena from India. He recited 50,000 decimal places of pi in 2020, which is the current recognized world record.

Pi (π) is a mathematical constant that represents the ratio of a circle's circumference to its diameter. It is an irrational number, which means it cannot be expressed as a finite decimal or a fraction. The decimal representation of pi is non-repeating and goes on indefinitely without a pattern. The value of pi is approximately 3.14159, but it is commonly approximated as 3.14 for simplicity in mathematical calculations. However, the exact value of pi has been calculated to trillions of digits using various computational methods. The quest to calculate more digits of pi continues to this day, and the computation of pi serves as a benchmark for testing the performance of supercomputers and computational algorithms. The current record for calculating the most digits of pi is trillions of digits, achieved through the use of powerful computers and advanced algorithms.

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Answer:

Solving \(6^2-(1.1+7.4)+1.5\) we get \(\mathbf{29}\)

Step-by-step explanation:

We need to solve:

\(6^2-(1.1+7.4)+1.5\)

First solving brackets

\(=6^2-(8.5)+1.5\\=6^2-8.5+1.5\\\)

Now solving 6^2

\(=36-8.5+1.5\\\)

Now subtracting 8.5 from 36

\(=27.5+1.5\)

Now adding the above values

\(=29\)

So, solving \(6^2-(1.1+7.4)+1.5\) we get \(\mathbf{29}\)

Answer:

no

Step-by-step explanation:

Answer:

The answer is .

whenever y equals 5 this usually means that 5 is the answer because on the Y intercept it usually is just five but if you had x equals 7 the x intercept would be 7 .

The value of "k" that makes the terms 5k-3, k+2, and 3k-11 form an arithmetic sequence is k = 3.

To find the value of "k" such that the terms 5k-3, k+2, and 3k-11 form an arithmetic sequence, we need to determine the common difference between the terms.

The common difference (d) between any two consecutive terms in an arithmetic sequence remains constant. Therefore, we can set up the equation:

(k+2) - (5k-3) = (3k-11) - (k+2)

Now let's solve this equation step by step:

(k+2) - (5k-3) = (3k-11) - (k+2)

k + 2 - 5k + 3 = 3k - 11 - k - 2

-4k + 5 = 2k - 13

Next, let's gather the "k" terms on one side and the constant terms on the other side:

-4k - 2k = -13 - 5

-6k = -18

Dividing both sides of the equation by -6 gives us:

k = (-18) / (-6)

k = 3

Therefore, the value of "k" that makes the terms 5k-3, k+2, and 3k-11 form an arithmetic sequence is **k = 3**.

In this case, when we substitute "k" with 3, the terms become 12, 5, and 4, respectively, which form an arithmetic sequence with a common difference of -7.

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Answer:

A

Step-by-step explanation:

If you follow the dotted lines and bring all the lines together,

angle8 = angle4 (corresponding angles)

angle8 = angle5 (vertically opposite angles)

angle5 = angle1 (corresponding angles)

Therefore, angle8 is basically the same as angles 1 and 4

Thus,

127+127=254

Answer:

Here is the fruit pie....chart lol

Step-by-step explanation:

Hope this helps and have a great day!

Answer:

0x = -7

Step-by-step explanation:

-5x+5x = 4-9-2

0x = -7

Ikr its so- ion even have words

IM DEADDDDDDDDDDDDDDDDDDDDDDDDDDDD