x reduced by 13 is at least 15

The parabola opens in the downward direction, as per the general form of parabola.

The general form of a parabola opening vertically is:

y = a(x - h)² + k

Here, (h, k) are the coordinates of the vertex and the focus is at (a, 0).

Now, Here, If  a > 0, the parabola opens upwards.

If a < 0, the parabola opens downwards.

Here, The given equation of a parabola is:

⇒ y = ax².

And, As the value of 'a' is negative, therefore, a < 0.

Hence, the parabola opens downwards.

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Answer:

times 25 and 9

Step-by-step explanation:

Answer:

25x9

Step-by-step explanation:

Answer:

x^-2

Step-by-step explanation:

(x*x*x)/(x*x*x*x*x)

1/x*x

1/x^2

x^-2

Answer: 1 / x^2

Step-by-step explanation:

x^3 / x^5

= x^-2

= 1 / x^2

Answer:

Top one is 3000, second one is 3.5, and the last one is 4

Step-by-step explanation:

Its like a  opy of the question and my teacher said it was correct

Answer:

Top one is 3000, the second is 3.5, and the last one is 4 years

Step-by-step explanation:

Having the right product means that the software being developed meets the needs and requirements of its intended users.

This involves identifying the target audience, understanding their needs, and designing the software in a way that meets those needs. In addition to functionality, having the right product also means ensuring the software is user-friendly, reliable, and efficient. Achieving the right product requires effective communication between developers and stakeholders, as well as ongoing testing and feedback to ensure that the software meets its intended purpose.

Ultimately, having the right product leads to greater user satisfaction, increased productivity, and improved overall performance of the software.

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We have the next two matrices:

And we must calculate A - B.

when we have a matrix subtraction we know that

We can see that the matrices have the same number of rows and columns. So, we can subtract them.

Now, we must subtract the terms that occupy the same place in the matrices.

Finally, solving the interior subtractions we obtain

Answer:9x/5

Step-by-step explanation:hope it helps

Answer: D=22

Step-by-step explanation:

this is because if multiply f by r you get D and then you do all the other rmathematics and you wind up with 22

In the test made, her prediction that students who distribute practice will perform better than students who mass practice is the alternative hypothesis, option d.

At the null hypothesis, we test if the predictions is false, that is, that students who distribute practice will not perform better than students who mass practice.

At the alternative hypothesis, it is where we test if there is enough evidence to conclude if the prediction is right, that is, if students who distribute practice will perform better than students who mass practice, hence, option d is correct.

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The values x such that (6, x, −11) and (5, x, x) are orthogonal is 6,5.

The orthogonal vectors have dot product to be zero. Thus, the formula to be used is -

a . b = a1b1 + a2b2 + a3b3, where a1, a2 and a3 are components a vector and b1, b2 and be are components of b vector.

Keep the values in formula -

a . b = 6(5) + x² + (-11)x

a . b = 30 + x² - 11x = 0

So, x² - 11x + 30 = 0

x(x - 6) - 5(x - 6) = 0

(x - 6) (x - 5) = 0

So, the value of x is 6,5.

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Answer:3048.7804878

Step-by-step explanation:

I took the same test p.s. you may need to round.

Answer:

I think its D

Step-by-step explanation:

i might be wrong

Answer:

6^21 = B

Step-by-step explanation:

\([6^{7} ]^{3} \\(6)^7^*^3\\6 ^{21} \\\)

Answer:

B

Step-by-step explanation:

When solving exponents with parenthesis around the base + sub exponent, always multiply the two exponents. Basically, when the two exponents are right next to each other, you multiply them. When you multiply 7 and 3, you get 21; therefore, the answer is 6 to the power of 23.

The median of the data is 6.

Looking at the box plot you provided, we can see that it's divided into four sections, or quartiles. The median, or the middle value of the data, is represented by the line that divides the box in half.

To find the median number of books read by the students, we need to look at the box plot and identify the median line. Then we can follow that line until it intersects with the y-axis, which represents the number of books read. The value at that point is the median number of books read by the students.

By looking through the box plot we have identified that te median is 6.

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After solving the word problem,  the change in the number of shares of stock he owns, is x-96.

In the given question we have to find  the change in the number of shares of stock he owns.

As given that Eric owns shares of a certain stock. If he sells off 8 shares each month for a year.

Let Eric owns x shares of a certain stock.

If he sells off 8 shares each months for a year.

So as we know that in a year have 12 months.

In 1 month = 8 shares sells

12 months = 12×8 shares sells

12 months = 96 shares sells

So in a year Eric sells 96 shares and he have total x shares.

So the remaining shares are x-96.

Hence, the change in the number of shares of stock he owns, is x-96.

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When there are precisely two outcomes of a trial that are mutually exclusive, the binomial distribution is used.

A discrete distribution is the binomial distribution. It is a probability distribution that is frequently utilised. It is then designed to represent a variety of distinct phenomena that appear in business, social sciences, natural sciences, and medical research.

The probability of achieving a specific number of successes, such as successful basketball shots, out of a fixed number of trials can be determined using the binomial distribution. To determine discrete probabilities, we use the binomial distribution.

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The equation of the circle centered at the origin with a radius of 12 is x² + y² = 144.

In order to find the equation of a circle centered at the origin with a radius of 12, we need to use the standard form equation of a circle, which is:

(x - h)² + (y - k)² = r²

Where (h,k) represents the center of the circle, and r represents the radius.

In this case, since the circle is centered at the origin, h = 0 and k = 0. Also, since the radius is 12, we can substitute r = 12 in the above equation to get:

x² + y² = 12²

Simplifying further, we get:

x² + y² = 144

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Plz refer the picture

plz mark as brainliest

Answer:

Step-by-step explanation:But my eqn came like this...

The probability of household views between 5 and 11 hours will be 0.7653. Number of hours needed in order to be in top 3% will be 13.03 hours. Probability of views more than 3 hours will be 0.9838.

a) The probability of television views between than 5 and 11 hours.

 P( 5≤X≤11) = P[ (5-μ)/σ ≤ (X-μ)/σ ≤ (11-μ)/σ]

                   = P [ (5-8.35)/2.5 ≤ z ≤ (11-8.35)/2.5)

                    = P ( -1.34 ≤ z ≤ 1.06)

                    = P ( z≤ 1.06) - P(z ≤ -1.34)

Substituting values from the z-table

   P ( 5≤X≤11) = 0.85543 - 0.09012 = 0.76531

Probability that household views between 5 and 11 hours is  0.7653.

b) Hours needed to be in top 3% of all households.

 P( X> h) = 0.03

 P[ (X-μ)/σ > (h-μ)/σ] = 0.03

P ( z >h-8.35/2.5) = 0.03

P ( z ≤ h-8.35/2.5) = 0.97

From the table

  (h - 8.35)/ 2.5 = 1.87

   h = (1.87× 2.5) + 8.35

      = 13.025 = 13.03 hours

So if the viewing time is more than 13.03, the household will be in the top 3%.

c) Probability of viewing more than 3 hours

 P(X> 3) = P[ (X-μ)/σ > (3-μ)/σ]

               = P( z < -2.14) = 0.9838

So probability the household will have views more than 3 hours will be 0.9838.

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Answer:

C. 720

Step-by-step explanation:

10 - 3 is 8 so you multiply all the numbers from 10 through 8

10 * 9 * 8 = 720

That is the answer. Hope it helped!

Answer:

C: 720

Step-by-step explanation:

i got 100% on the quiz

Answer:

D

Step-by-step explanation:

Answer: 76.5 I'm assuming the question is asking for the answer of 3(2+100)/4

Step-by-step explanation:

3(2+100) would become 3x102 which is 306 and when you divide it by 4 it becomes 76.5

Answer:

3 does not belong because its not long enough

The variance of this binomial random variable is 2.4 .

The variance of a binomial random variable with parameters n and p is given by the formula:

The variance of the binomial distribution  where n is the number of trials, p is the probability of success, and 1-p is the probability of failure.

Variance = n × p × (1 - p)

In this case, n = 10 and p = 0.4

Putting these values into the formula, we get:

Variance = 10 × 0.4 × (1 - 0.4)

Variance = 4 × 0.6

Variance = 2.4

Therefore, the variance of this binomial random variable is 2.4 .

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