Please help me, really need help

Answer:

Your answer is

3z=30

z=10.

Answer:

10

Step-by-step explanation:

Because it is equal to each other. you have to find out what makes 3 equal to 15 which would be 5 because 3*5=15

Since you used five on the bottom one then you have to do the same for the top. Which would be 2*5=10 so then you get your answer

Hope this helps!

Can I have brainliest?

Answer:

A ≈ 22.2 ft²

Step-by-step explanation:

the area (A) of the sector is calculated as

A = area of circle × fraction of circle

   = πr² × \(\frac{50}{360}\)

   = π × 7.13² × \(\frac{5}{36}\)

    = 50.8369π × \(\frac{5}{36}\)

    ≈ 22.2 ft² ( to the nearest tenth )

The equation of line v is y - x = 7 and The equation in slope-intercept form is y = x + 7.

Given:

y = -x + 7

Compare it to Slope-intercept form y = mx + c (∵ m = slope or gradient)

The gradient (m₁) is -1.

The gradient of the perpendicular line v is given by

m₂= -1/m₁

m₂=-1/-1

m₂=1

To find the duration of the perpendicular line v use the formula

y- y₁ = m(x-x₁)   (i.e., one slope, one point formula)

y₁=-1, x₁ =-8 , m₂ =1

y-(-1) = 1[x-(-8)]

y + 1 = x + 8

y - x = 8 - 1

y - x = 7

So, The equation of line v is y - x = 7 and The equation in slope-intercept form is y = x + 7.

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The probability of Stephen Curry making exactly three of his next five free throws is 0.3264 or 32.64%.

\(p(x) = nCx * p^x * q^(n-x)\)

where:

n = total number of attempts (5 in this case)

x = desired number of successes (3 in this case)

p = probability of success (0.92 in this case)

q = probability of failure (1 - p, or 0.08 in this case)

Plugging these numbers into the equation gives us:

p(3) = 5C3 * 0.92^3 * 0.08^2 = 0.3264

Stephen Curry is a professional basketball player in the NBA who is known for his incredibly accurate shooting ability. He made 92% of his free throws during the 2018-2019 regular season with the Golden State Warriors. We can calculate the probability of Curry making exactly three of his next five free throws using the binomial probability formula. This formula takes into account the probability of the event (Curry making the free throw) and the number of attempts (five). In this case, the probability of success (Curry making the free throw) is 0.92 and the number of attempts is five. Plugging these numbers into the equation gives us a probability of 0.3264 or 32.64%. This means that Curry has a 32.64% chance of making exactly three of his next five free throws.

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The probability that the first patient with a smoking history is on the 6th pick is 0.08501.

To calculate this probability, we need to consider the complement of the event, which is the probability that none of the first five patients have a smoking history.

The probability that an individual patient does not have a smoking history is 1 - 0.25 = 0.75. Since each pick is independent, the probability that the first five patients do not have a smoking history is (0.75)^5 = 0.2373.

Therefore, the probability that the first patient with a smoking history is on the 6th pick is 1 - 0.2373 = 0.7627.

Rounding this probability to four decimal places, we get 0.7627 ≈ 0.0850, which is approximately 0.08501.

Therefore, the probability that the first patient with a smoking history is on the 6th pick is 0.08501.

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The required probability of the coin landing tails up at least two times is 15/16.

Given that,
A fair coin is flipped seven times. what is the probability of the coin landing tails up at least two times is to be determined.

Probability can be defined as the ratio of favorable outcomes to the total number of events.

Here,
In the given question,
let's approach inverse operation,
The probability of all tails  = 1 / 2^7 because there is only one way to flip these coins and get no heads.
The probability of getting 1 head = 7 /2^7
Adding both the probability = 8 / 2^7
Probability of the coin landing tails up at least two times = 1 - 8/2^7
                                                                                     = 1 - 8 / 128
                                                                                     = 120 / 128
                                                                                     = 15 / 16

Thus, the required probability of the coin landing tails up at least two times is 15/16.

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The greatest possible length of time will be "1020 min".

Given:

The average length of time,

= 960

For all 3 computers,

The minimum length of time,

= 930

Let,

Now,

→     \(\frac{930+930+930+x}{3} = 960\)

→  \(\frac{930+930+930}{3} +\frac{x}{3} =960\)

→           \(\frac{3\times 930}{3} +\frac{x}{3} =960\)

→              \(930+\frac{x}{3}=960\)

→                        \(\frac{x}{3} = 960-930\)

→                        \(x = 30\times 3\)

→                        \(x = 90\)

hence,

The greatest possible length of time will be:

=  \(930+x\)

=  \(930+90\)

=  \(1020 \ min\)

Thus the above is the appropriate answer.

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Answer:

125$ per hour

Step-by-step explanation:

Answer: 125 dollars per hour

Step-by-step explanation:

1125 / 9 = 125

Answer:

24

Step-by-step explanation:

h(x^3-5)

h(-2^3-5)

h(-8-5)

h(-13)

2x-2

2(-13)-2

26-2

=24

a. Paired t-test – Dependent samples. Relevant parameter: mean sales. (b) Independent samples t-test – Independent samples. Relevant parameter: rating score. (c) Chi-squared test – Independent samples. Relevant parameter:   positive/negative ratings

a. For scenario a, where Hughes records the mean sales before and after the menu change, a paired t-test would be an appropriate statistical method. The samples in this scenario are dependent because they come from the same group of customers (i.e., sales before and after the menu change). The relevant parameter in this case would be the mean sales. To determine whether the difference in mean sales before and after the change is statistically significant, a paired t-test would be used for inference.

b. In scenario b, where Hughes randomly samples 100 people and asks them to rate both menus, an independent samples t-test would be suitable for analyzing the problem. The samples in this scenario are independent because each person rates both menus separately. The relevant parameter would be the rating score. To determine if there is a significant difference in ratings between the two menus, an independent samples t-test can be used for inference.

c. In scenario c, where Hughes randomly samples 100 people and separates them into two groups, asking for positive/negative ratings for the old and new menus, a chi-squared test would be appropriate for analyzing the problem. The samples in this scenario are independent because each person belongs to either group 1 or group 2 and rates only one menu. The relevant parameter would be the proportion of positive and negative ratings for each menu. A chi-squared test can be used to assess whether there is a significant association between the menu (old or new) and the positive/negative ratings.


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The linear equation for this scenario is y = 2x + 10 and $20 was charged for 5 ATM transactions

An equation consists of numbers and variables linked together by mathematical operations to form an expression.

A linear equation is in the form:

y = mx + b

Where m is the rate of change and b is the initial value

Let y represent the total cost for x monthly transactions.

$10 is charged monthly plus $2 per transaction, hence:

m = 2, b = 10

y = 2x + 10

For 5 ATM transactions:

y = 2(5) + 10 = $20

The linear equation for this scenario is y = 2x + 10

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... and then?

You didn't eve give a question

Answer:

cool

Step-by-step explanation:

i dont know what the question is

Answer:

r² = (9 - 4)² + (6 - 4)² = 5² + 2² = 25 + 4 = 29

So the equation of this circle is

(x - 4)² + (y - 4)² = 29

Answer:

162

Step-by-step explanation:

theorem <w+<x=<y

5x+2+8x+4=15x-18

13x+6=15x-18

6+18=15x-13x

24=2x

12=x

------------

xyz=15x-18

15(12)-18

180-18

=162

Answer:

17/25

Step-by-step explanation:

sorry if I'm wrong

lay them out on.a piece of paper and circle every multiple of 2

Answer:

What is the question

Step-by-step explanation:

Solving systems of equations by elimination involves manipulating equations so that the variables may be canceled out, resulting in a simpler equation that can be solved. This method is used to solve systems of equations with two or more variables.

Solving systems of equations by elimination is a method of finding the solutions to systems of equations with two or more variables. To do this, the equations are manipulated so that the two variables can be canceled out, resulting in a simpler equation. This simpler equation can then be solved using basic arithmetic. Depending on the equations, different methods may be used to manipulate them, such as adding them together or subtracting one from the other. Once the variables have been canceled out, the resulting equation can be solved to find the solution. This method of solving systems of equations can be used for linear equations, quadratic equations, and even more complex systems of equations.

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Answer:

A

Step-by-step explanation:

3(x+2)+4x=3x+6+4x=7x+6

The total amount received is the sum of the set-up charge and the charge per page, would be $80..

As per the given information in the problem, the total amount received for each print job is given by the formula:

C = S + 0.06p

where C represents the total amount, S represents the set-up charge, and p represents the number of pages in the print job.

If we are given the values of S and p, we can calculate the total amount received for the print job by substituting those values in the above formula and solving for C.

For example, let's say that the set-up charge for a particular print job is $50 and the number of pages in the job is 500. Then, the total amount received for that job would be:

C = $50 + ($0.06 x 500)

C = $50 + $30

C = $80

Therefore, the amount received for that print job would be $80.

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Answer:

d

Step-by-step explanation:

The function is nonlinear. Linear is a straigt line and this function has a curve. You can find that by thinking of the story or placing it on a graph.

Answer:

d

Step-by-step explanation:

the answer is non-linear because a linear function  would only have the first part not 9x+4  

Answer:

i don't know exactly.

Step-by-step explanation:

but the might be an angle tool online.

Answer:

ML = 8.76, LK = 3.56

Step-by-step explanation:

Angle M = 24° is given and Angle K is marked to show it's a right angle. That's 90°. You filled in Angle L = 66° which is correct (subtract 180 - 24 - 90 = 66)

Now for the sides you need trigonometry. It's totally do-able! Let's do ML first. ML is the HYPOTENUSE (longest side and opposite from the right angle) and you're given MK = 8. MK is right next to Angle M, like it is literally apart of Angle M. That means that MK is an ADJACENT side to Angle M. The trig function that puts together ADJ and HYP is cosine. You do need a calculator or maybe your program has a drop down calculator.

cos 24° = ADJ/HYP

cos 24° = 8/ML

(ML)cos 24° = (8/ML)(ML)

(ML)cos 24° = 8

Divide both sides by cos24°

ML = 8/cos24° approximately= 8.76

Make sure sure your calculator is in "degree" mode. You will usually see a tiny "deg" on the scene or check on the "mode" key

You can use trig again to get the third side or use Pythagorean theorem.

Here is the trig. LK is OPPOSITE from angle M. If we use the MK again, the ADJACENT side, we'll need tangent.

tan 24° = LK/8

8tan24° = LK

3.56 = LK

Cam can run 9.3205 miles when she finishes.

mile, any of several distance measurements, such as the statute mile of 5,280 feet (1.609 km). It was derived from the Roman mille passus, or "thousand paces," which was equivalent to 5,000 Roman feet.

The term "mile" is derived from the Latin "mille passus," which means "one thousand paces," and a mile was 1,000 Roman strides, with a stride equaling two steps. In 1592, the English Parliament standardised the Mile measurement at eight furlongs (660 feet).

Cam signed up to run a 15-kilometre running race.

So, here, we will convert kilometers to miles-

I kilometer is =0.621371 miles

And, I mile =1.609344 kilometres.

Thus, converting kilometres to miles.

Simply multiply the Number of kilometres by 0.62137.

Therefore, 1 kilometre =0.621371 miles

1.5 kilometer=15*0.621371 miles =9.32057 miles

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The device that indicates whether two AC sources to be connected in parallel are in the correct phase relationship is called a synchronizing device.

A synchronizing device is a mechanism that ensures that two AC sources are in sync when they are connected in parallel. It's used to match the voltage, frequency, and phase angle of two alternating current (AC) sources.

It guarantees that the power supplied by both generators is synchronized, allowing them to be combined into a single electrical system without disrupting the balance of the current or causing a short circuit.

As a result, it is critical to the safe and efficient operation of power systems. A phase sequence indicator (PSI) or a synchroscope is often used as a synchronizing device. It works by providing an indication of the voltage difference, the phase angle difference, and the frequency difference between two AC sources that are to be synchronized.

Therefore, a synchronizing device is an instrument that determines whether two alternating current (AC) sources to be connected in parallel are in the appropriate phase relationship.

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Option d is not correct as it uses "II" which is not a commonly used symbol to indicate less than and greater than.

The correct expression to indicate that x is greater than 10 and less than 20 is:

a. 10 < x < 20

This is read as "10 is less than x, and x is less than 20." The symbols "<" and ">" indicate "less than" and "greater than," respectively.

Option b is not correct as it uses parentheses instead of the less than/greater than symbols.

Option c is not correct as it uses "&" and "&&" which are not commonly used symbols to indicate less than and greater than.

Option d is not correct as it uses "II" which is not a commonly used symbol to indicate less than and greater than.

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The domain restrictions for the expression are all real numbers, as there are no denominators or radical expressions involved.The domain of an expression

function refers to the set of all possible input values for which the expression or function is defined. In this case, the expression k^2 + 7k + 12k^2 - 2k - 24 does not involve any denominators or radical expressions. Therefore, there are no restrictions on the input values, and the expression is defined for all real numbers. To elaborate, let's consider the terms in the expression individually: The terms k^2, 12k^2, and -24 are polynomial terms with no restrictions. They are defined for all real numbers. The terms 7k and -2k are linear terms, which are also defined for all real numbers. Since all the terms in the expression are defined for all real numbers, there are no specific values of k that would cause the expression to be undefined. Therefore, the domain of the expression is the set of all real numbers. In interval notation, the domain can be represented as (-∞, +∞), indicating that any real number can be used as input for the expression.

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The required cost of hosta and ornamental grass is $6 and $3.

Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.

here,
let the cost of each hosta be x and ornamental grass be y,
According to the question,
For
Trevon,
5x + y = 33 - - - - - (1)

For, Scott,
x + 12y = 42 - - - - - - (2)

Solving equations 1 and 2 by substitution method,
x=6, y=3

Thus, the cost of hosta and ornamental grass is given as $6 and $3.

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The goal is to get the message to all members of the organization while minimizing the overall probability of its being compromised.

There are several methods to distribute the message while minimizing the probability of its being compromised. The most efficient one is the broadcast protocol. Here is how it works:

Step 1: All members communicate with one another, sharing what they know about other members' locations, as well as the rendezvous procedures that they use.

Step 2: Based on this information, each member calculates the probability that a message might be compromised if it is passed between any two members. This information is used to build a table of probabilities, which is then used to construct a routing tree.

Step 3: Each member sends a message to one or more of its immediate neighbors, using a set of rules that minimize the probability of a message being compromised. For example, the member might send the message only to those neighbors who are unlikely to be hostile, or to those who have the highest probability of being able to pass the message along to other members without compromising its security.

Step 4: As the message moves through the network, it is passed along from one member to another, with each member following the routing tree to determine where to send the message next. The goal is to get the message to all members of the organization while minimizing the overall probability of its being compromised.

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The area of one of the hexagons is about 10.392 square inches (to the nearest tenth).

In a regular polygon, the area can be calculated as A = 1/2Pa where P is the perimeter and a is the apothem.

The perimeter P can be calculated as P = 5s where s is the length of one side, and the apothem a can be found using the Pythagorean theorem such that a = sqrt(r^2-s^2) where r is the radius of the polygon and can be calculated as r = s/(2sin(pi/n)) where n is the number of sides.

Hence, using the formulas above we have the following: r = \frac{s}{2sin(\frac{pi}{n})}

r = \frac{2}{2sin(\frac{pi}{5})}

r = \frac{2}{2sin(0.62832)}

r = 1.8518

a = sqrt(r^2 - s^2)

a = sqrt(1.8518^2 - 2^2)

a = sqrt(1.4312)

a = 1.1964

Therefore, the perimeter P can be calculated as P = 5s = 5(2) = 10.

The area A of the pentagon can then be calculated as A = 1/2Pa = 1/2(10)(1.1964) = 5.9820.

The area of one of the pentagons is about 5.9820 square inches (to the nearest tenth).

The side length of one of the hexagons measures 2 inches and the apothem measures about 1.73 inches.

The area of one of the hexagons is to be calculated.

The radius r of the hexagon can be calculated as r = s/(2sin(pi/n)) where n is the number of sides. Hence, using the formula above we have the following:

r = \frac{s}{2sin(\frac{pi}{n})}

r = \frac{2}{2sin(\frac{pi}{6})}

r = \frac{2}{2sin(0.5236)}$$$$r = 1.732

Therefore, the perimeter P can be calculated as P = 6s = 6(2) = 12.The area A of the hexagon can then be calculated as A = 1/2Pa = 1/2(12)(1.73) = 10.392.

The area of one of the hexagons is about 10.392 square inches (to the nearest tenth).

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Answer:

Step-by-step explanation:

The area of one pen will be largest when the area of a ractangle is the largest.

x - one side of rectangular area      (x>0)

y - second side of rectangular area   (y>0)

The farmer has 750 m of fencing, so if we subtract the sides x and fencing used for dividing into pens we receive:

y = 750 - 5x          (750-5x>0  ⇒  x<150)

Area of the rectangle:  A = x•y

A(x) = x•(750 - 5x)             D=(0, 150)

A(x) = -5x² + 750x            

A'(x) = -5•2x + 750•1 = -10x + 750 = -10(x - 75)

if x=75 then A'(x) = 0

so x = 75 is critical point

First Derivative Test:

A'(x) > 0  ⇔ -10(x-75)>0 ⇔  x-75<0  ⇔ x<75

A'(x) < 0  ⇔ -10(x-75)<0 ⇔  x-75>0  ⇔ x>75

A′(x)>0 to the left of x=75 and A′(x)>0 to the right of x=75 then x=75 is a maximum. {rational but also global in the interval (0,150)}

A(75) = 75•(750 - 5•75) = 75•375 = 28125 m²

So the largest possible area of each of the four pens is:  

8125 : 4 = 7031.25 m²