Solve 15x +2=17

Please help me. It’s superrrr important

Answer:

2x^4+4x^2+2

Step-by-step explanation:

f(x) = x^2+1

g(x) = 2x^2

g(f(x))=

Replace x in the function g(x) with the function f(x)

         =2( x^2+1)^2

         = 2( x^2 +2x^2 +1)

         = 2x^4+4x^2+2

The first option is correct. The series of transformations that would result in an image being similar but not congruent to its preimage is reflection over the x-axis, reflection over the y-axis, and translation up 3.

The state of being in agreement or concord is referred to as congruency. It is a notion that is employed in many fields of life, including mathematics, psychology, and philosophy. Congruency is the belief that in order for an idea, system, or process to be effective, all of its components must agree with each other.

Reflection along the x-axis: This transformation includes reflecting the shape along an imaginary line drawn across the coordinate plane's origin. This produces a mirror copy of the original shape, with the left side of the shape mirrored to the right side and the right side of the shape reflected to the left.

Reflection along the y-axis: This transformation includes reflecting the shape along an imaginary line drawn across the coordinate plane's origin. This produces a mirror copy of the original shape, with the top side of the shape reflecting to the bottom side and the bottom side of the shape reflecting to the top side.

Translation up 3: In this transformation, the shape is moved up by a given number of units. The form will be pushed forward three units without affecting its size or orientation as a result of this.

Reflection over the x-axis, reflection over the y-axis, reflection over the x-axis: This transformation requires reflecting the shape twice across an imaginary line drawn through the coordinate plane's origin. This produces a mirror copy of the original shape, with the left side of the shape mirrored to the right side and the right side of the shape reflected to the left.

Dilation by a scale factor of 3: This modification enlarges or contracts the shape by a certain scale factor. This causes the form to be three times larger or smaller than it was before, without affecting its orientation.

180° anticlockwise rotation: This transformation includes rotating the shape by a given amount. This will spin the form 180° anticlockwise without affecting its size or orientation.

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Solving a system of equations we can see that each pair of pants costs €82.94 and each coat costs €26.37

Let's define the variables:

x = cost of a pant

y = cost of a coat.

First, we know that:

3x + 2y = 245

And then there are discounts of 20% and 5%, and the cost of one of each is 100.75, then:

0.8x + 0.95y = 100.75

Then we have a system of equations:

3x + 2y = 245

0.8x + 0.95y = 100.75

We can isolate x on the second equation to get:

x = (100.75 - 0.96y)/0.8

x = 125.9 - 1.2y

Replace that in the other equation:

3*(125.9 - 1.2y) + 2y = 245

Solving for y:

3*125.9 - 3*1.2y + 2y = 245

y*(2 - 3*1.2) = 245 - 3*125.9

y = (245 - 3*125.9)/(2 - 3*1.2)

y = 82.94

Then the value of x is:

x = 125.9 - 1.2*82.94

x = 26.37

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The equation of the linear function is y =4x + 8

From the question, we have the following parameters that can be used in our computation:

The table of values

A linear equation is represented as

y = mx + c

Where

c = y when x = 0

This means that

y = mx + 8

From the table, we have

A unit increment in x gives an increment of 4 in y

This means that

m = 4

So, we have

y = 4x + 8

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Answer:

528,672

Step-by-step explanation:

A=P(1+r)^t

360,000(1+.03)^13 = 528,672.1368

Rounded: 528,672

The probability that on exactly one of these three occasions the voter approves of the mayor's work is given as follows:

0.189 = 18.9%.

The mass probability formula, giving the probability of x successes, is of:

\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)

\(C_{n,x} = \frac{n!}{x!(n-x)!}\)

The parameters are given by:

The values of these parameters in the context of this problem are given as follows:

n = 3, p = 0.7.

Then the probability of exactly one success is calculated as follows:

P(X = 1) = 3!/(1!2!) x 0.7 x (0.3)² = 0.189 = 18.9%.

The proportion of voters that approve the mayor's work is of 70%.

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The t-distribution is a family of probability distributions that arise when estimating the mean of a normally distributed population in situations where the sample size is small or the population standard deviation is unknown.

The shape, center, and spread of t-models change as the number of degrees of freedom increases as follows:

Shape: As the number of degrees of freedom increases, the shape of the t-distribution becomes more similar to that of the standard normal distribution. Specifically, the t-distribution approaches the normal distribution in shape as the number of degrees of freedom increases.

Center: The center of the t-distribution is always located at zero. As the number of degrees of freedom increases, the mean of the t-distribution approaches zero, and the distribution becomes more symmetric around the mean.

Spread: The spread of the t-distribution decreases as the number of degrees of freedom increases. Specifically, the variance of the t-distribution decreases as the number of degrees of freedom increases. This means that the t-distribution becomes more concentrated around its mean as the number of degrees of freedom increases.

In summary, as the number of degrees of freedom increases, the t-distribution becomes more like the standard normal distribution in shape, its center remains at zero, and its spread becomes narrower. This has important implications for hypothesis testing and confidence intervals, as the t-distribution is commonly used in these statistical applications.

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The expected value of the distribution for the random variable x is 10. This means that if we were to repeat the experiment many times, the average value of x would converge to 10, with some fluctuations around this central value due to the randomness of the uniform distribution.

The expected value of a random variable is a measure of the central tendency of its distribution, representing the average value that we would expect to observe over many trials or events. In the case of a uniform distribution, where all values between the minimum and maximum are equally likely, the expected value can be calculated as the average of the two endpoints:
e(x) = (5 + 15) / 2 = 10
Therefore, the expected value of the distribution for the random variable x is 10. This means that if we were to repeat the experiment many times, the average value of x would converge to 10, with some fluctuations around this central value due to the randomness of the uniform distribution.
It is important to note that the expected value is not always equal to the most common or typical value of a distribution, but rather represents a measure of the overall tendency of the data. Other measures such as the variance or standard deviation can provide additional information about the spread or variability of the distribution, which can be useful for making statistical inferences or predictions.

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Answer:

Solution given:

(x1,y1)=(-2,3)

(x2,y2)=(1,9)

we have

equation of line

(y-y1)=\( \frac{y2-y1}{x2-x1} \)(x-x1)

(y-3)=\( \frac{9-3}{1+2} \)(x+2)

y-3=2x+4

2x-y+4+3=0

2x-y+7=0;is a required equation.

Answer:

Since the ratios are not equal the triangles are not similar

Step-by-step explanation:

Triangle Similarity

For both triangles to be similar, their corresponding side lengths should be proportional by the same scale factor.

Triangle BAK has side lengths: BA=60, AK=38, and KB=36

Triangle JOL has side lengths: JO=50, OL=28, and LJ=26.

Calculating the ratios of the corresponding side lengths:

BA/JO=60/50=1.2

AK/OL=38/28=1.36

KB/LJ=36/26=1.38

Since the ratios are not equal the triangles are not similar

Answer:

The answer is r={-8,1/4}

Answer:

A wall can be built by 6 men working 8*5*6=240 hours.

If 4 men works 5 hours a day, they work 20 hours/day.

It will take them 240 hours /20 hours = 12 days

Based on the calculations, we can conclude that Louise is incorrect in assuming that all three expressions are equal to 36. The correct values for the expressions are 324, 234, and 159, respectively.

The given question involves evaluating expressions using the order of operations, also known as PEMDAS. Let's break down each expression step by step:

Expression 1: (5x3+3)2
According to PEMDAS, we first perform the multiplication (5x3), which equals 15.

Then, we add 3 to get 18. Finally, we square the result, which gives us 324. Therefore, (5x3+3)2 equals 324.

Expression 2: (5x3)2+(3)2
Again, applying PEMDAS, we start with the multiplication (5x3), which equals 15. Then, we square this result, which gives us 225.

Next, we square 3, resulting in 9. Finally, we add 225 and 9, which equals 234. Therefore, (5x3)2+(3)2 equals 234.

Expression 3: 25x6+9
Using PEMDAS, we first perform the multiplication (25x6), which equals 150.

Then, we add 9 to get the final result, which is 159. Therefore, 25x6+9 equals 159.

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Answer:

b only

Step-by-step explanation:

Answer:

its 60-15(pie) sq inches

Step-by-step explanation:

we have that

Part 1

Remember that breakpoint is when the revenue (R) is equal to the cost (C)

so

C=7x+30,000

R=10x

equate both equations

10x=7x+30,000

solve for x

10x-7x=30,000

3x=30,000

x=10,000 units

Part 2

net profit of $ 21,000

so

R-C=21,000

10x-(7x+30,000)=21,000

10x-7x-30,000=21,000

3x=21,000+30,000

3x=51,000

Part 3

net profit equal to $ 60,000

so

R-C=60,000

10x-(7x+30,000)=60,000

10x-7x-30,000=60,000

3x=60,000+30,000

3x=90,000

Answer: 36

12 out of 15 people play in the school band. In the class, 36 do not play.

12:15 is equal to a ration of 36:45.

So, it is the answer. 36 out of 45 people in the class play in the band.

Hope this helps!

Answer:

9 I think

Step-by-step explanation:

I wanted to simplify 12 out of 15 and I did by dividing 3 out of both of them which would now equal 4 out of 5. I know that 4 out of 5 is 80%. so, I did 80 % of 45 which equals 36 which means 36 people were in band. So now you minus 36 from 45 which is 9

9 people did not play in band

Answer:

97

Step-by-step explanation:

A straight horizonal line is 180 degrees, so you subtract 83 from 180 to get 97, which is the measure of angle JKL

Spiders are arachnids with eight legs, as do all arachnids. Spiders differ from insects in that they have only six legs.

Crabs and prawns are also members of the phylum Arthropoda, which includes spiders. Spiders walk on eight legs, but they also have two additional legs that they utilise as hands. The front legs are called pedipalps, or palps for short.

Proteins are secreted by glands on spiders, which aid in the formation of the web. For a number of objectives, including prey capture, prey detection, tunnel lining, egg sacs, and prey wrapping, spiders can create a variety of webs or silks.

Spiders are venomous carnivores who hunt their prey with poison.In Everglades National Park, arachnids such as spiders, scorpions, mites, ticks, whip scorpions, and pseudoscorpions are all common.

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Answer:

A

Step-by-step explanation:

i think it's A, i am not 100% sure and i cannot give you a full explanation why because i am doing it in my head, but i mentally did all the other ones and A is the only one that would work

Let's simplify the expression step by step: Expand the squared term:

(x - 3y)² = (x - 3y)(x - 3y) = x² - 6xy + 9y²

Expand the second term:

3(x + y)(x − 4y) = 3(x² - 4xy + xy - 4y²) = 3(x² - 3xy - 4y²)

Expand the third term:

x(3x + 4y + 3) = 3x² + 4xy + 3x

Now, let's combine all the expanded terms:

(x - 3y)² + 3(x + y)(x − 4y) + x(3x + 4y + 3)

= x² - 6xy + 9y² + 3(x² - 3xy - 4y²) + 3x² + 4xy + 3x

Combining like terms:

= x² + 3x² + 3x² - 6xy - 3xy + 4xy + 9y² - 4y² + 3x

= 7x² - 5xy + 5y² + 3x

The simplified form of the expression is 7x² - 5xy + 5y² + 3x.

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Answer:

First start with the y-intercept at -2.

Then graph it three units to the right, then one unit down.

Step-by-step explanation:

Please mark as Brainliest!

Answer:

Place a point on (-6,0) and (0,-2) then draw a line that goes through both of those two points. You will then have graphed that equation.

I hope this helps!

Answer:

answer: 63.25

Hope this helps!

Answer:

Alexa has 13 quarters and 15 dimes.

Step-by-step explanation:

First, we should set up a system of equations using the given information. We can use q to represent the number of quarters and d to represent the number of dimes.

Since quarters are $0.25, dimes are $0.10, and the total is $4.75 we know 0.25q + 0.1d = 4.75

The problem tells us that there are 2 more dimes than quarters, so d = q + 2

To solve for the number of quarters, we can substitute the second equation into the first equation.

0.25q + 0.1 (q + 2) = 4.75

0.25q + 0.1q + 0.2 = 4.75

0.35q = 4.55

q = 13

Then, to solve for the number of dimes, we can substitute q into the second equation.

d = q + 2

d = 13 + 2

d = 15

A) ->Height of water in the tank=7.2 meters

B) -> Percentage of tank filled with water= 36.01%

A) To find the height of the water in the tank, we need to calculate the ratio of the volume of water to the total volume of the tank.

The formula for the volume of a cylinder is given by V = πr²h, where V is the volume, r is the radius, and h is the height.

With regard to it regarding to it:

Radius (r) = 5 meters

Total tank volume = 565.2 cubic meters

We can rearrange the formula to solve for height (h):

h = V / (πr²)

Substitution of values:

h = 565.2 / (π * 5²)

Height calculation:

h ≈ 7.2 meters

Therefore, the height of the water in the reservoir is approximately 7.2 meters.

B) To calculate the percentage of filling the tank with water, we need to determine the ratio of the volume of water to the total volume of the tank.

Fill percentage = (water volume / total tank volume) * 100

By substituting the specified values:

Percentage filled = (565.2 / (π * 5² * 10)) * 100

Percentage calculation:

Occupancy percentage ≈ 36.01%

Therefore, approximately 36.01% of the tank is filled with water.

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