what is the probability that the power will go of durning a storm, if the probability of it staying on is 78%?

please help!​

Answer:

the answer is 42 can i have brainliest please:)

Step-by-step explanation:

3x7x2=42

Answer:

42

Step-by-step explanation:

Answer:

43

Step-by-step explanation:

Answer:

43

Step-by-step explanation:

Well, I used the process of elimination at first. I realized that the numbers that mattered in the question were even numbers therefore the only one that would not end in the even number once I added "6" to the next 5 numbers, would be number 43.

Answer:

no. 1 a=37,no.2 b=12 thanks for your question which help to improve my knowledge

Answer:

I think it's c but I'm not 100%

Step-by-step explanation:

sorry if I'm wrong

Let x be the number

40% of x = 8

Multiply both-side of the equation by 100

Divide both-side of the equation by 40

Therefore, 8 is 40% of 20

Answer:

Step-by-step explanation:

Answer:

7.65

Step-by-step explanation:

15% of 51$ is 7.65 for the meal tip!

The percentage of the cases in a normal distribution falls between 35 and 45 is  0.6826. ii)  If you go out 3 standard deviations from the mean on both sides you capture is 0.9974.

An example of a continuous probability distribution is the normal distribution, in which the majority of data points cluster in the middle of the range while the remaining ones taper off symmetrically towards either extreme. The distribution's mean is another name for the centre of the range.

A Gaussian distribution or probability bell curve are other names for the normal distribution. Since it is symmetric about the mean, it shows that values close to the mean happen more frequently than those distant from the mean.

P[35 < x < 45]

= p [ 35 - 40/5 < x - 40 / 5 < 45 - 205]

Using the z-table we have:

= 2(0.8413 - 1)

= 0.6826

For 3 standard deviations from mean:

P [-35 < x - m < 35]

= P[-3 < x - m / SD < 3]

Using the z-table:

P[-3 < x - m / SD < 3] = 2(0.9987) - 1

= 0.9974

Hence, the percentage of the cases in a normal distribution falls between 35 and 45 is  0.6826. ii)  If you go out 3 standard deviations from the mean on both sides of a normal distribution percentage of the cases will you capture is 0.9974.

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can u search it sweet heart or take a picture on here?

you can do anything to an equation as long as you do it to both sides

first, simplify

3x-7=4+6+4x

3x-7=10+4x

minus 3x both sides

3x-3x-7=10+4x-3x

0-7=10+1x

-7=10+x

minus 10 both sides

-10-7=10-10+x

-17=0+x

-17=x

one solution

In mathematics, an equation is an expression that states that two expressions are equal by joining them with the equal sign =.[2][3]. Equations and their cousins ​​in other languages ​​may have subtly different meanings. For example, in French, an equation is defined as containing one or more variables, whereas in English any well-formed expression consisting of two expressions joined by an equal sign is an equation.

To solve an equation involving variables, it is necessary to determine which values ​​of the variables make the equation true. The variables for which the equation must be solved are also called unknowns, and the values ​​of the unknowns that satisfy the equation are called the solution of the equation. There are two types of equations: identities and constraints. The ID applies to all values ​​of the variable. Constraint equations apply only to specific values ​​of variables.

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The critical value for a correlational study consisting of 18 individuals (n = 18), assuming a nondirectional study with an alpha level of 0.05, would be 0.444.

To determine the critical value for a non-directional correlational study with 18 individuals (n = 18) and an alpha level of 0.05, you can follow these steps:

1. Determine the degrees of freedom: Subtract 2 from the number of individuals (n - 2). In this case, df = 18 - 2 = 16.

2. Look up the critical value for a two-tailed test with an alpha level of 0.05 and 16 degrees of freedom in a table of Pearson correlation coefficients.

Based on the given answer choices, the critical value for this correlational study with 18 individuals and an alpha level of 0.05 is: 0.444

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After 12 days, 4.2 grams of curium-243 remains will be left in a sample with 5.6 grams after 12 days.

Given that,

The half-life of curium-243 is 28.5 days.

We have to find how many grams of curium-243 will be left in a sample with 5.6 grams after 12 days.

We know that,

The formula is

A(t) = A₀(1/2\()^{t/h}\)

Here,

t= 12 days, half life,

h =28.5 days .

And the initial value, A(0)=5.6 grams

So we will get

A(t) = 5.6(1/2\()^{12/28.5}\)

A(t) = 5.6×0.747 = 4.2 grams

Therefore, After 12 days, 4.2 grams of curium-243 remains will be left in a sample with 5.6 grams after 12 days.

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Answer:

D. Po

YAN lang kasi alam ko Sana po makatulong :)

The confidence interval with the smaller margin of error will be the one with the smaller sample proportion difference.

(a) To calculate the point estimate of the proportion of respondents who think the country is headed in the right direction, divide the number of "yes" responses by the total number of respondents (2,500).
Point estimate = (number of "yes" responses) / 2,500
(b) To find the margin of error at 95% confidence, use the formula:
Margin of error = Z * √(p(1-p) / n)
Here, Z = 1.96 (from the standard normal distribution for 95% confidence), p is the point estimate calculated in part (a), and n = 2,500.
(c) To find the 95% confidence interval for the proportion of respondents who think the country is headed in the right direction, use the formula:
Confidence interval = point estimate ± margin of error
(d) To find the 95% confidence interval for the proportion of respondents who do not think the country is headed in the right direction, first calculate the point estimate for "no" responses:
Point estimate (no) = (number of "no" responses) / 2,500
Then calculate the margin of error and confidence interval as in parts (b) and (c).
(e) To determine which confidence interval has a smaller margin of error, compare the margin of error calculated in parts (b) and (d).

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On solving the system of equations 1x + 4y = 73 and 9x + 5y = 192, the value for one plain and one shiny wrapping paper is obtained as $13 and $15 respectively.

What is an equation?

A mathematical definition of an equation is a claim that two expressions are equal when they are joined by the equals sign ("=").

Let the cost of plain wrapping paper be x.

Let the cost of shiny wrapping paper be y.

Stephanie sold 1 roll of plain wrapping paper and 4 rolls of shiny wrapping paper for a total of $73.

The equation for Stephanie is -

1x + 4y = 73 ..... (1)

Aliyah sold 9 rolls of plain wrapping paper and 5 rolls of shiny wrapping paper for a total of $192.

The equation for Aliyah is -

9x + 5y = 192 ....... (2)

Multiply equation (1) by 9 -

9x + 36y = 657 ....... (3)

Subtract equation (2) form (3) -

9x + 36y - (9x + 5y) = 657 - 192

9x + 36y - 9x - 5y = 465

31y = 465

y = 465 / 31

y = 15

Therefore, the cost of one shiny wrapping paper is $15.

Substitute the value of y in equation (1) -

1x + 4(15) = 73

x = 73 - 60

x = 13

Therefore, the cost of one plain wrapping paper is $13.

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The correct option is False. The standard formulas for the derivatives of sine and cosine are true when the angle is in radians. These formulas are derived based on the properties of the trigonometric functions in the context of radians. The derivatives of sine and cosine with respect to an angle measured in radians are as follows:

\(\[\frac{d}{dx}(\sin(x)) = \cos(x)\]\)

\(\[\frac{d}{dx}(\cos(x)) = -\sin(x)\]\)

If the angle is measured in degrees, these formulas would not hold true. To differentiate trigonometric functions when the angle is measured in degrees, conversion factors and additional adjustments would be necessary.

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Answer:

4 hours in the grocery store

Step-by-step explanation:

x for restaurant, y for grocery store

\(\left \{ {{5x+5.5y=82} \atop {x+y=16}} \right.\)

\(\left \{ {{5x+5.5y=82} \atop {x=16-y}} \right.\)

Substitute.

- 5y + 5.5y + 80 = 82

0.5y = 2

y = 4

x + 4 = 16

x = 12

Answer:

in pic

Step-by-step explanation:

PLEASE MARK BRAINLIEST

The statement (D) "If f(c) is differentiable on its domain, then it is also continuous on its domain" must be true.

(A) The statement "Continuous functions are differentiable wherever they are defined" is false. While it is true that differentiable functions are continuous, the converse is not always true. There exist continuous functions that are not differentiable at certain points, such as functions with sharp corners or cusps.

(C) The statement "If f() is differentiable on the interval (0,0), then it must be differentiable everywhere" is false. Differentiability on a specific interval does not imply differentiability everywhere. A function can be differentiable on a particular interval but not differentiable at isolated points or on other intervals.

(D) The statement "If f(c) is differentiable on its domain, then it is also continuous on its domain" is true. Differentiability implies continuity. If a function is differentiable at a point, it must also be continuous at that point. Therefore, if f(c) is differentiable on its domain, it must also be continuous on its domain.

(B) The statement "The product of two differentiable functions is not always differentiable" is false. The product of two differentiable functions is always differentiable. This is known as the product rule in calculus, which states that if two functions are differentiable, then their product is also differentiable.

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Answer:

$.40 cents in nickels and $1.50 (or 150 cents) in quarters in total she would have $1.90 in cents he would have 190 cents in total

Step-by-step explanation:

you would do 8x5 to get 0.40 cents and then do 6x25 to get $1.50 so she will

154b

Step-by-step explanation:

Graphing the equation 3x - 2y = -6 over the range x = -10 to x = 10:

To graph the equation 3x - 2y = -6, we need to rearrange it in the form y = mx + b, where m is the slope and b is the y-intercept.

3x - 2y = -6

-2y = -3x - 6

Divide both sides by -2:

y = (3/2)x + 3

Now we have the equation in slope-intercept form.

To graph the equation, we can plot a few points and draw a line through them. Let's choose some x-values from the range -10 to 10 and find the corresponding y-values.

For x = -10:

y = (3/2)(-10) + 3

y = -15 + 3

y = -12

For x = 0:

y = (3/2)(0) + 3

y = 0 + 3

y = 3

For x = 10:

y = (3/2)(10) + 3

y = 15 + 3

y = 18

Plotting these points (-10, -12), (0, 3), and (10, 18) on the graph and drawing a line through them, we get the graph of the equation 3x - 2y = -6.

Using the graphical method to solve the pair of equations:

The given equations are:

10x = 5y

-3x + y = 1

To solve these equations graphically, we need to plot their graphs on the same coordinate plane and find the point where they intersect, which represents the solution.

Rearranging the second equation in slope-intercept form:

y = 3x + 1

Now we have the equations in the form y = mx + b.

Plotting the graphs of the equations 10x = 5y and y = 3x + 1, we can find the point of intersection, which represents the solution to the system of equations.

The point of intersection is the solution to the system of equations.

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Answer:

\(s = \frac{-3}{4} - \frac{t}{4}\)

Step-by-step explanation:

-3 = t + 4s

-3 - t = 4s

-3/4 - t/4 = s

The area of circle calculated form the circumference of circle is 6.25π cm².

The circumference of circle is represented by the formula -

Circumference = 2πr, where r is the radius of the circle.

Keep the value of circumference to find the radius of circle.

5π = 2πr

Cancelling π on each side of the equation

2r = 5

r = 5/2 cm

Now, we know the area of circle is given by the formula -

Area = πr²

Keep the values of radius in the formula -

Area = π× (5/2)²

Taking square on Right Hand Side of the equation

Area = 25π/4

Performing division on Right Hand Side of the equation

Area = 6.25π cm²

Thus, the area is 6.25π cm².

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Answer:

(x − 3, y − 3), reflection over y = −x + 2

view attached pic for proof :)

The distance from the point (0, 0, 12) to the line x = 41, y = -21, z = 21 is 21 units.

The given question asks for the distance between a point and a line in each exercise. In this particular exercise (Exercise 33), the point is (0, 0, 12), and the line is represented by the equations x = 41, y = -21, z = 21.

To find the distance between a point and a line, we can use the formula derived from the concept of vector projection. The formula states that the distance between a point P and a line L is equal to the magnitude of the vector projection of the vector from a point on the line to the point P onto the direction vector of the line.

In this case, the direction vector of the line is (1, -1, 0). We can choose any point on the line to calculate the distance, so let's consider the point (41, -21, 21) on the line. The vector from this point to the given point P is (-41, 21, -9).

Next, we calculate the dot product of this vector and the direction vector of the line:

(-41, 21, -9) · (1, -1, 0) = (-41) + (-21) + (0) = -62.

The magnitude of the direction vector is √(1^2 + (-1)^2 + 0^2) = √2.

Finally, we can find the distance by dividing the absolute value of the dot product by the magnitude of the direction vector:

Distance = |(-62)| / √2 = 62 / √2 = 21√2 ≈ 29.7 units.

Therefore, the distance from the point (0, 0, 12) to the line x = 41, y = -21, z = 21 is approximately 29.7 units.

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The ratio of trick-or-treaters who were not dressed as snow white last Halloween is 5/9

Ratio is the relationship between two quantities, normally expressed as the quotient of one divided by the other.

It can be expressed in different ways:

1) Use the ":" to separate the values : a : b

2) Use the word "to" : a to b

3) Write it in fraction: a / b

On the other hand, proportion is the equality of two or more ratios.

example: a : b = c : d

If four out of every nine trick-or-treaters that came to your house last Halloween were dressed as snow white, then the rest were not dressed as snow white.

9 - 4 = 5

If five out every nine trick-or-treaters that came to your house last Halloween were not dressed as snow white, we can express the ratio as

5 out of 9 or 5 : 9 or 5/9

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We need to find the initial horizontal component of the vector that represents the velocity of the ball. Let us represent that initial horizontal component by, \(\bold{v_x}\).

Now, since basketball player shoots the ball with an initial velocity, \(\bold{v}\), of 17.0 ft./sec at an angle of 34.1 degrees with the horizontal, we can find the initial horizontal component by, \(\bold{v_x}\) using the following formula:

\(\bold{v_x}=\bold{v}\text{cos}(\theta)=17.0\times\text{cos}(34.1^\circ)\thickapprox14.1\) ft./sec