In the Central City Prix, out of 30 cars that started the race, 12 of them finished. What percent of the cars finished the race?

Answer:

900

Step-by-step explanation:

A=SxS

50265=S^2

S= √50265

S=225

P=Sx4

P=225x4

P=900

Answer:

Step-1 :  Reflect the original figure around the x-axis.

Step-2 :  Slide the new figure 7 units to the right.

Answer:

Olivia finds a combination that moves figure ABCDE onto figure A"B"C"D"E".

She may have reflected it over the x-axis and then translated it right 10 units.

Angelica reflected the figure over the y-axis and translated it up 8 units. Her transformed figure is in the correct location, but facing the wrong direction

Answer:

$199.8 (This is what I personally got it could be wrong)

Step-by-step explanation

7.25 x 32 = 232

232 x 1/4 = 58

58 - 25.50 = 32.5

232 - 32.5 = 199.8

Answer: $199.8 in profit

The cost to you of attending the game instead of going to work is 85$

They are the set of numbers and symbols that are related by the different mathematical operation signs such as addition, subtraction, multiplication, division among others.

To solve this problem we must perform the following algebraic operations with the given information

Information about the problem:

Calculating how much will cost attending the game:

Total cost = (time of the game*Hours paid for work) + Transportation cost

Total cost = (12*5) + 25

Total cost = 85$

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The value of each part is AC = 18 cm, CD = 54 cm, DE = 108 cm, and

EB = 72 cm. This can be solved using the concept of mathematical operators.

A collection of numbers and operations is an expression in mathematics. The following are the parts of a math expression that do a math operation:

Operands: Operands are the numbers that an operation uses. The terms that are given to the operands vary according to the kind of operation.

Operator: An operator is the symbol that denotes a math operation, such as: division, addition, subtraction, and multiplication.

Given that,

length of wooden plank AB is 252 cm

divides it into four parts by inserting the points C, D and E

parts of plank are AC, CD, DE, EB

CD = 3AC,

DE = 2CD, and

DE = 2(3AC)

DE = 6AC

EB = 4AC

AB = AC + CD + DE + EB

substitute the values we get,

AB = AC + 3AC + 6AC + 4AC

252 = 14AC

AC = 252/14 = 18cm

CD = 3AC = 3(18) = 54 cm

DE = 6AC = 6(18) = 108 cm

EB = 4AC = 4(18) = 72 cm

Hence length of each part is AC = 18 cm, CD = 54 cm, DE = 108 cm, and

EB = 72 cm.

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Answer:

Number of Cents = 10x

Step-by-step explanation:

Since w

Since we know that there are 10 cents in a dime, the amount of cents in an unknown quantity of dimes is 10 * the number of dimes.

Therefore the number of cents in x dimes is 10x

The final answer is:  a) Q1 = -0.6745, Q3 = 0.6745 b) IFL = -2.698, IFH = 2.698 c) P(Z is beyond inner fences) = 0.0035 d) OFL = -4.7215, OFH = 4.7215 e) P(Z is beyond outer fences) = 0.0003

Given: Z is a standard normal random variable Formula used:

First Quartile (Q1) = -0.6745,

Third Quartile (Q3) = 0.6745,

Interquartile range (IQR) = 1.349,

Inner fences (IFL and IFH) = Q1 - 1.5 * IQR and Q3 + 1.5 * IQR,

Outer fences (OFL and OFH) = Q1 - 3 * IQR and Q3 + 3 * IQR

Box plot:

a) First Quartile (Q1) = -0.6745, Third Quartile (Q3) = 0.6745

Therefore,Q1 = -0.6745 and Q3 = 0.6745

b) Inner fences (IFL and IFH) = Q1 - 1.5 * IQR and Q3 + 1.5 * IQR

Interquartile range (IQR) = Q3 - Q1 = 0.6745 - (-0.6745) = 1.349

Therefore,

IFL = Q1 - 1.5 * IQR= -0.6745 - 1.5 * 1.349= -2.698

and

IFH = Q3 + 1.5 * IQR= 0.6745 + 1.5 * 1.349= 2.698c)

Probability that Z is beyond the inner fences:

The probability of Z is less than IFL is equal to the probability of Z is greater than IFH and that probability is 0.0035

Therefore, P(Z is beyond inner fences) = 0.0035d) Outer fences (OFL and OFH) = Q1 - 3 * IQR and Q3 + 3 * IQR

Therefore,

OFL = Q1 - 3 * IQR= -0.6745 - 3 * 1.349= -4.7215

and

OFH = Q3 + 3 * IQR= 0.6745 + 3 * 1.349= 4.7215e)

Probability that Z is beyond the outer fences:

Since the normal distribution is symmetric, the probability of Z is less than OFL is equal to the probability of Z is greater than OFH. Therefore, the required probability is 0.0003 (by looking at the z-score table).Therefore, P(Z is beyond outer fences) = 0.0003

Hence, the final answer is:  a) Q1 = -0.6745, Q3 = 0.6745 b) IFL = -2.698, IFH = 2.698 c) P(Z is beyond inner fences) = 0.0035 d) OFL = -4.7215, OFH = 4.7215 e) P(Z is beyond outer fences) = 0.0003

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Answer:

81.5

Step-by-step explanation:

<G and <H are congruent

<F and <I are congruent

so the last two angles in both triangles must also be congruent

this means that <K and <J are congruent

so we can create this equation: <K = <J

substitute the angles with what we know: 4\(y^{2}\) = 6\(y^{2}\) - 40

add 40 to both sides and subtract 4\(y^{2}\) from both sides: 40 = 2\(y^{2}\)

you get: 20 = \(y^{2}\)

root square on both sides: \(\sqrt{20}\) = \(\sqrt{y^{2} }\)

you get: y ≈ 4.5

substitute this into one of the equations for a missing variable:

6\(y^{2}\) -----> 6 (4.5 x 4.5) - 40

6 ( 20.25) - 40

121.5 - 40

81.5

Answer:

Spencer

Step-by-step explanation:

The points are (3,-1) and (5,4) to find slope, you subtract the two y and x points  and divide or put it into a fraction.

The equation for the numerator would be 4-(-1). The negatives cancel out, so the equation is actually 4+1, which is 5.

The equation for the denominator is 5-3, which is 2.

The slope would be 5/2, and Spencer did that work, so Spencer is correct.

The slope will be 5/2, and Spencer did that work, so Spencer is correct.

The slope is the ratio of the vertical changes to the horizontal changes between two points of the line.

Given the points;

(3,-1) and (5,4)

x1 = 3 ; x2 = 5 ; y1 = - 1 ; y2 = 4

Spencer is right because, the slope of a line is obtained thus ;

Slope = change in y / change in x

Slope = (y2 - y1) / (x2 - x1)

Slope = (4 - (-1)) / (5 - 3)

Slope = (4 + 1) / 2

Slope = 5 / 2

Hence, slope = 2.5

The slope will be 5/2, and Spencer did that work, so Spencer is correct.

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By calculating the given expression , we get 5 as a final resultant.

What is Algebraic expression ?

Algebraic expressions are the idea of expressing numbers the use of letters or alphabets without specifying their real values. The basics of algebra taught us the way to express an unknown fee the use of letters consisting of x, y, z, and so on. those letters are known as here as variables. An algebraic expression can be a aggregate of both variables and constants. Any fee that is placed earlier than and improved with the aid of a variable is a coefficient.

Given expression ,

32- (3^2 -1 ) + 20 / 2

So by using the BODMAS rule ,

32 - (3*3  -  1 ) + 20 / 2

23 - (9 - 1 ) + 10

23 - (8) + 10

23 - 18

23 - 18

= 5

Hence, By calculating the given expression , we get 5 as a final resultant.

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Answer:

B

Step-by-step explanation:

its B because the input for every pair has the same output, if the input had different outputs it would be considered not a function. Imagine it like a vending machine, if you were to press 3 on the vending machine you would get whatever 3 was, but if you pressed 3 and you get something else besides whatever 3 is it would be broken. I hope this was helpful, I struggled learning this stuff but now I got it down lol.

Answer:

yes no yes. I was a little skeptical about 18 but nevermind

Truck B's approximate speed is 43.75 miles per hour.

Let's denote the speed of truck B as 'x' miles per hour.

Since truck A is traveling twice as fast as truck B, its speed would be '2x' miles per hour. After 4 hours, truck A would have traveled a distance of 4 times its speed, which is 4(2x) = 8x miles.

Similarly, truck B would have traveled a distance of 4 times its speed, which is 4x miles.

Given that the two trucks are 350 miles apart, we can set up an equation based on their distances traveled. The equation would be 8x + 4x = 350, combining the distances traveled by both trucks.

Simplifying the equation gives us 12x = 350. Solving for x by dividing both sides by 12, we find x ≈ 29.17.

Therefore, the approximate speed of truck B is approximately 29.17 miles per hour.

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Answer:

c.) October

Step-by-step explanation:

the pattern just skip two months

Answer:

the right answer is

1,2/9

These are the general steps that every experiment takes, however no two research programs are the same. The aforementioned steps can be changed.

What is hypothesis in math?

A hypothesis is a proposition that makes sense in light of the available information but has neither been confirmed nor refuted.

                             A statement on which hypothesis testing will be based is referred to as a hypothesis in statistics (also known as a statistical hypothesis).

Of the 10 targets, you mislabeled two. Both the forecast and the hypothesis were messed up by you. Remember that a hypothesis usually offers less detail than a prediction.

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The probability that a compact car's randomly chosen mpg would be higher than 30 is 0.797.

Given data;

A certain compact car's mpg (miles per gallon) has a mean of 31 and a standard deviation of 1.2 and is regularly distributed.

We need to get the probability that the mpg for a randomly selected compact car would be more than 30.

Therefore;

Mean = μ = 31

Standard deviation = σ = 1.2

Let;

P(X > 30) = P(X - 31/1.2 > 30 - 31/1.2)

               = P(Z > -0.833)

               = 0.797

Hence, the probability that the mpg for a randomly selected compact car would be more than 30 is 0.797.

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The correlation coefficient is +0.8, it indicates a strong positive relationship between the variables. If it is -0.3, it suggests a weak negative relationship. Keep in mind that correlation does not imply causation; it simply measures the association between variables.

The formula for calculating the correlation coefficient was developed by Karl Pearson, a British mathematician and statistician. Pearson's correlation coefficient, denoted as r, is a measure of the linear relationship between two variables. It quantifies the strength and direction of the relationship, ranging from -1 to +1.

To calculate the correlation coefficient, follow these steps:

1. Standardize the data: Subtract the mean from each data point and divide by the standard deviation for both variables.

2. Multiply the standardized values for each pair of data points and sum them.

3. Divide the sum by the number of data points.

4. This will give you the covariance between the two variables.

5. Next, calculate the standard deviation for each variable and multiply them together.

6. Divide the covariance by the product of the standard deviations.

7. The resulting value is the correlation coefficient, which indicates the strength and direction of the linear relationship.

For example, if the correlation coefficient is +0.8, it indicates a strong positive relationship between the variables. If it is -0.3, it suggests a weak negative relationship. Keep in mind that correlation does not imply causation; it simply measures the association between variables.

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Answer:

B

Step-by-step explanation:

Given

- 7b = 21 ( divide both sides by - 7 )

b = - 3

The farmer needs to purchase 66 feet of fencing to enclose the rectangular region.

Let's call the length of the side of the rectangle that is parallel to the barn "2x" (since it is twice the length of the adjacent side), and let's call the length of the adjacent side "x". The length of the side opposite the barn is also "x", since it is opposite to the adjacent side.

We know that the area of the rectangle is 242 ft^2. The formula for the area of a rectangle is:

area = length * width

So we can write an equation for the area of the rectangle in terms of "x":

242 = 2x * x

Simplifying this equation, we get:

242 = 2x²

Dividing both sides by 2, we get:

121 = x²

Taking the square root of both sides, we get:

11 = x

So the adjacent side of the rectangle is 11 feet, and the side parallel to the barn is twice as long, or 22 feet.

To find the amount of fencing needed, we need to add up the lengths of all three sides that are not parallel to the barn. The formula for the perimeter of a rectangle is:

perimeter = 2 * length + 2 * width

Since one of the sides is the barn, we only need to add up the lengths of the two sides opposite the barn:

Perimeter = 2 * length + 2 * width

Therefore, the farmer needs to purchase 66 feet of fencing to enclose the rectangular region.

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Answer:

$3,000

Step-by-step explanation:

Company A bid $595,000 for materials and plants and $204,000 for labor.

Company B bid $660,000 for materials and plants and $136,000 for labor.

The difference:

https://wa.me/message/DCN6ZX3BJZLMK1

Answer:

45*31=1,395

that would be 1,395 gallons if water used in december.

Step-by-step explanation:

Answer: B (I)

Step-by-step explanation:

Answer:

width = 14 feet

Step-by-step explanation:

the 7 part of the ratio relates to the length of the garden , then

24.5 feet ÷ 7 = 3.5 feet ← value of one part of the ratio , so

width = 4 × 3.5 feet = 14 feet