Robert is designing a rectangular window. Based on the amount of wood he has available to make a frame around the window, Robert wants the perimeter of the window to be 200 inches. Robert wants the base, b, and the height, h, of the window to be such that the window will have the largest area possible. He thinks that a square window will be his best option.

Answer:

x=-10

Step-by-step explanation:

4.5(8-x)+36=102-2.5(3x+24) first you multiply 10 to both sides

4.5(8-x)x10+36x10=102x10-2.5(3x+24)x10

Then you have to refine the equation

45(8-x)+360=1020-25(3x+24)

Then you expand it

45(8-x)+360

=360-45x+360

Simplify

360-45x+360 -45x+720

Expand it one more time

-45x+720=-75x+420

Subtract 720 from each side

-45x+720-720=-75x+420-720

Simplify

-45x=-75x-300

Add 75x to both sides

-45x+75x=-75x-300+75x

Simplify

Divide both sides by 30

30x/30=-300/30

Then you get -10

There is no angle measure (in degrees) for which cos(θ) = 3/2 because the cosine function only takes values between -1 and 1.

Now, let's solve for the angle measure (θ) in degrees for which cos(θ) = 3/2.

The cosine function has a range of -1 to 1. Since 3/2 is greater than 1, there is no real angle measure (in degrees) for which cos(θ) = 3/2.

In trigonometry, the values of sine and cosine are limited by the unit circle, where the maximum value for both sine and cosine is 1 and the minimum value is -1. Therefore, for real angles, the cosine function cannot have a value greater than 1 or less than -1.

So, in summary, there is no angle measure (in degrees) for which cos(θ) = 3/2 because the cosine function only takes values between -1 and 1.

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There are 28 ways to choose 6 teams for the playoffs if there are 8 college basketball teams in a certain sub-division.

To determine the number of ways to choose 6 teams for the playoffs out of the 8 college basketball teams in a certain Sub-Division, we can use the combination formula. The formula for combinations is given by

nCr = n! / (r! * (n-r)!),

where n represents the total number of teams and r represents the number of teams to be chosen.

In this case, n = 8 and r = 6.

Plugging in these values, we have

8C6 = 8! / (6! * (8-6)!) = 8! / (6! * 2!) = (8 * 7) / (2 * 1) = 28.

Therefore, there are total 28 ways to choose 6 teams.

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Answer:

e. -490

Step-by-step explanation:

-318+3= -315

-315/9= -35

So that would mean m= -35

-35*14= -490

Therefore, Drug C has a stronger impact on cell survival compared to Drug A, making it the drug with the greatest effect.

To draw a representation of the survival curve and identify the drug that has the greatest effect on cell survival, we can use a graph where the x-axis represents the drug concentration in μg/ml, and the y-axis represents the percentage of cell survival.

Since Drug B has no IC90 value, it means that it does not reach a concentration that causes a 90% reduction in cell survival. Therefore, we can assume that Drug B has no significant effect on cell survival and can omit it from the survival curve.

For Drug A and Drug C, we have IC90 values of 5 and 3 μg/ml, respectively. This means that when the drug concentration reaches these values, there is a 90% reduction in cell survival.

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Answer:

18

Step-by-step explanation:

Answer: I think it may be 18.

Step-by-step explanation: The reason is because, 118 plus 44 equals 162. 180-162=18

I'm not sure what you are asking, but the diamond ring would be 30% off and the ruby ring would be 30% off. 868 is 70% of 1240 and 217 is 70% of 310. This means that 30% has been discounted, which is the remaining of the 100%.

The second triangle will have the same side lengths and angles as the initial triangle.

The correct option is D.

The reflection of an equilateral triangle relative to the line passing through its side results in a new equilateral triangle that is the same size as the initial triangle. Therefore, the correct answer is D: The second triangle is the same size as the initial triangle.

When a figure is reflected across a line, every point on the figure is flipped to the opposite side of the line, maintaining the same distances and angles. In the case of an equilateral triangle, each side is reflected to the opposite side of the line, resulting in a new equilateral triangle with the same side lengths and angles.

The property of an equilateral triangle is that all three sides are equal in length, and all three angles are equal to 60 degrees. The reflection does not alter these properties. Therefore, the second triangle will have the same side lengths and angles as the initial triangle.

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29/32

Step-by-step explanation:

ng x value 32wrffddfddfffryufcjhfddxhjhddxffdssdtt

t = # of months

H = total height

H = 15 + 3t

Answer:

t = # of months

H = total height

H = 15 + 3t

Step-by-step explanation:

The probability that Luke will hit the inner ring fewer than 3 times is  0.069.

To calculate the probability that the number of times Luke will hit the inner ring of the target out of the 5 attempts is less than the mean of X, we need to know the distribution of X.

Assuming that each shot is independent and has the same probability p of hitting the inner ring, X follows a binomial distribution with parameters n=5 and p.

The mean of a binomial distribution is given by μ = np, so in this case, the mean of X is 5p.

To find the probability that X is less than 5p, we can use the cumulative distribution function (CDF) of the binomial distribution. Let F(k) denote the CDF of the binomial distribution with parameters n=5 and p, evaluated at k.

Then the probability that X is less than 5p is:

P(X < 5p) = F(4p)

Note that we use 4p instead of 5p in the argument of F, since we want the probability that X is strictly less than 5p, not less than or equal to 5p.

Using a binomial table or calculator, we can look up or compute the value of F(4p) for a given value of p.

For example, if p=0.6 (which corresponds to Luke hitting the inner ring 60% of the time), we get:

P(X < 5p) = F(2.4) ≈ 0.069

So the probability that Luke will hit the inner ring fewer than 3 times (which is less than 5p=3) out of the 5 attempts is about 0.069, assuming he hits the inner ring with a probability of 0.6 on each shot.

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If the standard deviation of a set of data is 6, then the value of variance is 36

The formula for determining variance is variance = √Standard deviation

Variance of a set of data is equal to square of the standard deviation.

If the standard deviation of a set of data is 6 then we get variance by putting the value of standard deviation in the formula

variance = √Standard deviation

Take square root on both sides

Standard deviation² = 6²

Standard deviation= 36

Hence,  standard deviation of a set of data is 6, then the value of variance is 36

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Answer: On interval f(x) is increasing =  \(( -\infty, -2)\)

On interval f(x) is decreasing = \(( -\infty, -2)\)

Step-by-step explanation:

The given function: \(f(x)=-(x+2)^2+4\)

The graph of the function is attached below

In graph , function is increasing till point (-2,4) or x=-2 and then it is decreasing.

So f(x) is increasing in \(( -\infty, -2)\) and decreasing in \((-2, \infty)\)

So, On interval f(x) is increasing =  \(( -\infty, -2)\)

On interval f(x) is decreasing = \(( -\infty, -2)\)

90 Minutes i think

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The general solution for the differential equation: -2ty 4e^-t^2 is y = √(π^3) * e^(t^2) * erf(t).

To find the general solution of the given differential equation, we'll use the method of integrating factors. The differential equation is:

-2ty + 4e^(-t^2) = 0

To solve this, we can rewrite the equation in standard form:

y' + (-2t)y = 4e^(-t^2)

The integrating factor (denoted as μ) for this differential equation is given by:

μ = e^(∫(-2t) dt) = e^(-t^2)

Now, we'll multiply both sides of the equation by the integrating factor:

e^(-t^2)y' + (-2t)e^(-t^2)y = 4e^(-t^2)e^(-t^2)

Simplifying this equation, we get:

(d/dt)(e^(-t^2)y) = 4e^(-2t^2)

Now, we can integrate both sides with respect to t:

∫(d/dt)(e^(-t^2)y) dt = ∫4e^(-2t^2) dt

Integrating the left side yields:

e^(-t^2)y = ∫4e^(-2t^2) dt

The integral on the right side is not easily solvable in terms of elementary functions. However, we can express the solution using the error function (erf), which is a special function often used in the context of integrating Gaussian distributions. The integral can be rewritten as:

e^(-t^2)y = 2√π * ∫e^(-2t^2) dt = 2√π * ∫e^(-t^2) e^(-t^2) dt

This integral can be expressed in terms of the error function:

e^(-t^2)y = 2√π * (1/2) * √(π/2) * erf(t)

Simplifying further:

e^(-t^2)y = √(π^3) * erf(t)

Finally, solving for y:

y = √(π^3) * e^(t^2) * erf(t)

Therefore, the general solution of the given differential equation is:

y = √(π^3) * e^(t^2) * erf(t)

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Answer: (from the top) 11, 13, 15, 21

Step-by-step explanation:

2(3)+5 =11

2(4)+5 =13

2(5)+5 =15

2(8)+5 =21

The proposed ban on sugary soft drinks larger than 16 ounces in New York City has both pros and cons. Pros include reducing obesity and diabetes, while cons include potential infringement on personal freedom and potential negative impact on small businesses.

The proposed ban on sugary soft drinks larger than 16 ounces in New York City aims to reduce obesity and diabetes by limiting the consumption of high-calorie beverages. This can also help to lower the healthcare costs associated with these conditions. However, some argue that this is an infringement on personal freedom and that people should have the right to make their own choices about what they eat and drink. Additionally, there are concerns that small businesses, such as convenience stores and vending machine operators, could be negatively impacted by the ban. This is because they may lose sales as a result of the ban, which could lead to job losses and financial hardship.

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Answer:

8

Step-by-step explanation:

add 4 plus 4 then omg watch this you get 8 abracadabra....

you're welcome

8

Step-by-step explanation:

a)  P(X=330) is approximately 0.0002. b)P(X>340) is approximately 0.0294. c) P(335≤X≤345) is approximately 0.6415. d) P(X=300) is approximately 0.0004 of given probabilities

To find the probabilities using Excel's function options, we can use the binomial distribution function, which is provided as BINOM.DIST in Excel.

a) P(X=330):

=BINOM.DIST(330, 400, 0.8, FALSE)

The first argument is the specific value (330), the second argument is the total number of trials (400), the third argument is the probability of success (0.8), and the fourth argument FALSE indicates that we want the probability for a specific value.

The result is approximately 0.0002.

Therefore, P(X=330) is approximately 0.0002.

b) P(X>340):

=1 - BINOM.DIST(340, 400, 0.8, TRUE)

Since we want the probability of X being greater than 340, we can subtract the cumulative probability of X up to 340 from 1. We use the TRUE argument to indicate that we want the cumulative probability.

The result is approximately 0.0294.

Therefore, P(X>340) is approximately 0.0294.

c) P(335≤X≤345):

=BINOM.DIST(345, 400, 0.8, TRUE) - BINOM.DIST(334, 400, 0.8, TRUE)

To find the probability of X being between 335 and 345 (inclusive), we subtract the cumulative probability of X up to 334 from the cumulative probability of X up to 345.

The result is approximately 0.6415.

Therefore, P(335≤X≤345) is approximately 0.6415.

d) P(X=300):

=BINOM.DIST(300, 400, 0.8, FALSE)

The first argument is the specific value (300), the second argument is the total number of trials (400), the third argument is the probability of success (0.8), and the fourth argument FALSE indicates that we want the probability for a specific value.

The result is approximately 0.0004.

Therefore, P(X=300) is approximately 0.0004.

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Answer:

The slope is 30, and the y-intercept is 75.

Step-by-step explanation:

Use two points from the table, and find the equation of a line given two points.

Point 1: (1, 105)

Point 2: (3, 165)

y = mx + b

slope = m = (y_1 - y_1)/(x_2 - x_1)

m = (165 - 105)/(3 - 1) = 60/2 = 30

y = 30x + b

Use point (1, 105) for x and y.

105 = 30(1) + b

105 = 30 + b

b = 75

y = 30x + 75

The slope is 30, and the y-intercept is 75.

Answer:

1800

Step-by-step explanation:

because 15 goes into 90 6 times and 300 times 6 is 1800

Answer:

1800 miles

Step-by-step explanation:

300 miles on 15 gallons

90/15=6

6 times 300=1800

Answer:

x = 2 + √2

x = 2 - √2

Step-by-step explanation:

- x² + 2x + 1 = 0

x² - 2x - 1 = 0

Here,

a = 1

b = - 2

c = - 1

Now,

Discriminant

D = b² - 4ac

= (-2)² - 4(1)(-1)

= 4 + 4

= 8

=2√2 > 0

Real and Distinct roots

x = - b +- √b² - 4ac/2a

= - (-2) +- √ = (-2)² - 4(1)(-1)/2(1)

= 2 +- √4 + 4/2

= 2 +- √8/2

= 2 +- 2√2/2

= 2 +- √2

x = 2 + √2 or x = 2 - √2

Answer:

x = 2 + √2 or x = 2 - √2

Step-by-step explanation:

Edge 2021

Answer:

2y = 10 is an equation

An equation is a statement that shows that the values of two mathematical expressions are equal (indicated by the sign =)

The required scale factor for the dialed triangle is given by SF= 6.28

A triangle with vertices at A(0,0), B(0,4), and C(6,0) is dilated to yield a triangle with vertices at A(0,0), (B(0,10), and C (C(15,0).

The scale factor is defined as the ratio of modified change in length to the original length.

Since, the height and base of the triangle is y coordinate of B and x coordinate of c is given by 4, 6
Area of triangle =1/2(base x height)
                         = 1/2 (4 x 6)
                         =   4.8
Similarly, for dilated triangle
Area of dilated triangle =  30

Now, scale factor(SF) = area of dilated triangle \ area of triangle
SF = 30/4.8
SF = 6.25

Thus, the required scale factor is SF = 6.25

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Answer:

\( \bf \huge90\)

Step-by-step explanation:

⟼ x/6 - 2 = 13

step 1 : Simplify both sides of the equation.

⟼ x/6 - 2 = 13

⟼ 1/6 x + - 2 = 13

⟼ 1/6 x - 2 = 13

step 2 : add 2 both sides

⟼ 1/6 x - 2 + 2 = 13 + 2

⟼ 1/6 x = 15

step 3 : Multiply both sides by 6.

⟼ 6 × (1/6 x) = (6) × (15)

⟼ 6/6 x = 90

⟼ x = 6/6 × 90

⟼ x = 90.

∴ x = 90.

lets take x = 90.

⟼ (90) / 6 - 2 = 13

⟼ 90/6 - 2 = 13

⟼ 15 - 2 = 13

⟼ 13 = 13.

Answer:

40/8

Step-by-step explanation:

Answer: 5 hours 0/0

Step-by-step explanation:

If the observed t-value exceeds the critical t-value, then the difference between the sample means is most likely statistically significant.

In other words, the difference between the sample means is unlikely to have occurred by chance and is likely due to a real difference in the population means. The direction and magnitude of the difference must be further examined using effect size measures and confidence intervals.

Therefore, the most suitable value to be fit in the blank space of the given incomplete statement is, statistically significant.

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Answer:4

Step-by-step explanation:

20 times 8 =$160 which is the total price for all copies

$160:34=4.7....$ but you can't make 0.7... of copy, so we don't count it. You can make 4 copies for $34