Complete the compariso : 5+4=?

Answer:

-3

Step-by-step explanation:

3s + 4 = -5

3s + 4 - 4 = -5 - 4

3s = -9

3s/3 = -9/3

s = -3

Hope this is right

Answer:

if we dont see a numer in front of a variable it is just 1

Step-by-step explanation:

so for example if you had x^2

it would be 1x^2

Answer:

2. b 4 time 4 equals 16 and 12 in a dozen so 2 cartons of eggs

3.c 12 gallons times 2 dollars per gallon equals 24 dollars

4. a or b

I think b but I'm not sure

The inequality that represents this scenario is:

\(5 + 2.75x \le 21\)

The complete question describes the use of word problems to represent inequalities. The $21 means that there is a limit to the number of stops she can take using the train.

From the complete question, we have the following parameters:

Initial Fee = $5

Rate per stop = $2.75

Amount = $21

The inequality that represents the scenario is calculated using:

Initial Fee + Rate * Number of stops <= Amount

We use <= because the total charges must not exceed the amount.

Let the number of stops be x.

The above formula becomes

\(5 + 2.75 * x \le 21\)

\(5 + 2.75x \le 21\)

Hence, the inequality that represents this scenario is:

\(5 + 2.75x \le 21\)

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Answer:

a and 5

Step-by-step explanation:

Answer:

c Christopher

Step-by-step explanation:

hope this helps

Answer:

All the terms are alike.

Step-by-step explanation:

Answer:

its the 2nd one

Step-by-step explanation:

Hopefully this helped, if not HMU and I will get u a better answer.

-Have a great day! :)

Answer:

6.18%

Step-by-step explanation:

31.50 x 6.18 = 33.45

Answer:

The tax percentage is 5.82959641256%  (Round this number to however you want)

Step-by-step explanation:

31.5/33.45 = 0.94170403587

0.94170403587*100 = 94.1704035874

100 - 94.1704035874 = 5.82959641256

The left-hand side of the equation represents the logarithm of 64 with base x, and it is not possible to find a real value of x that satisfies the equation.

solve the equation logₓ(64) + 5 = 2, we can follow these steps:

Step 1: Move the constant term to the other side of the equation:

logₓ(64) = 2 - 5

logₓ(64) = -3

Step 2: Rewrite the equation in exponential form:

x^(-3) = 64

Step 3: Rewrite 64 as a power of x:

x^(-3) = x^6

Step 4: Set the exponents equal to each other:

-3 = 6

The equation -3 = 6 is not true, which means there is no real solution to the given equation.

Therefore, the equation logₓ(64) + 5 = 2 has no solution in the real number system.

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Answer:

20.985

Step-by-step explanation:

How do I calculate 30 percent off?

Take the pre-sale price.

Divide the original price by 100 and multiply it by 30.

Take this new number away from the original one.

The new number is your discounted value.

a.) The independent variable is the different types of music

b.) The dependent variable is the impact of listening felt by the rats

c.)An extraneous variable is the length of the maze.

d.) The control group is the rat in the quite room while the experimental groups are the ones in the maze listening to classical music, and listening to heavy metal music.

An independent variable is defined as the type of variable that cannot be manipulated by a researcher and isn't affected by what is being measured.

A dependent variable is the variable that can be manipulated by a researcher and is affected by what is being measured.

For question a.)

The independent variable is the different types of music

For question b.)

The dependent variable is the impact of listening felt by the rats

For question c.)

An extraneous variable is the length of the maze.

For question d.)

The control group is the rat in the quite room while the experimental groups are the ones in the maze listening to classical music, and listening to heavy metal music.

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answer: 28561^2in the area involves multiplying by the 4 sides of the shaded square and the shaded is the colored square.

we would expect m to be positive.

In this case, we're considering a formula of the form y = mx + b, where y represents the cost of a four-year college x years after 2010. The variable m represents the coefficient of x, which determines the slope of the line.

Since we're discussing the cost of college, it's reasonable to expect that it generally increases over time. Therefore, we would expect the coefficient m to be positive. A positive value of m indicates that as the number of years after 2010 increases (x), the cost of college (y) will also increase.

If m were negative, it would imply a decreasing cost over time, which is less likely for a four-year college. If m were zero, it would indicate that the cost remains constant regardless of the number of years after 2010, which is also unlikely given the rising trend in college costs.

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Hello !

68/17 = 4

=> yes for 68

84/17 = 4.941...

=> no for 84

357/17 = 21

=> yes for 357

1001/17 = 58.882...

=> no for 1001

Answer:

a. 0.0124 = 1.24% probability of stopping the manufacturing when the sample mean is 16 inches.

b. 0.0241 = 2.41% probability of stopping the manufacturing in case the mean is shifted to 16.05 inches.

c. 0.5 = 50% probability of not disturbing the manufacturing if mean shifts to 16.25 inches.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

When the distribution is normal, we use the z-score formula.

In a set with mean \(\mu\) and standard deviation \(\sigma\), the zscore of a measure X is given by:

\(Z = \frac{X - \mu}{\sigma}\)

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \(\mu\) and standard deviation \(\sigma\), the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).

Assume that the standard deviation of diameter of the rims is 0.3 inches. Samples of 9.

This means that \(\sigma = 0.3, n = 9, s = \frac{0.3}{\sqrt{9}} = 0.1\)

a. Calculate the probability of stopping the manufacturing when the sample mean is 16 inches.

Here we have \(\mu = 16\)

Higher than 16.25:

This is 1 subtracted by the pvalue of Z when X = 16.25. So

\(Z = \frac{X - \mu}{\sigma}\)

By the Central Limit Theorem

\(Z = \frac{X - \mu}{s}\)

\(Z = \frac{16.25 - 16}{0.1}\)

\(Z = 2.5\)

\(Z = 2.5\) has a pvalue of 0.9938

1 - 0.9938 = 0.0062

Lower than 15.75:

This is the pvalue of Z when X = 15.75. So

\(Z = \frac{X - \mu}{s}\)

\(Z = \frac{15.75 - 16}{0.1}\)

\(Z = -2.5\)

\(Z = -2.5\) has a pvalue of 0.0062

Probability of stopping:

2*0.0062 = 0.0124

0.0124 = 1.24% probability of stopping the manufacturing when the sample mean is 16 inches.

b. Calculate the probability of stopping the manufacturing in case the mean is shifted to 16.05 inches.

Here we have \(\mu = 16.05\)

Higher than 16.25:

\(Z = \frac{X - \mu}{s}\)

\(Z = \frac{16.25 - 16.05}{0.1}\)

\(Z = 2\)

\(Z = 2\) has a pvalue of 0.9772

1 - 0.9772 = 0.0228

Lower than 15.75:

This is the pvalue of Z when X = 15.75. So

\(Z = \frac{X - \mu}{s}\)

\(Z = \frac{15.75 - 16.05}{0.1}\)

\(Z = -3\)

\(Z = -3\) has a pvalue of 0.0013

Probability of stopping:

0.0228 + 0.0013 = 0.0241

0.0241 = 2.41% probability of stopping the manufacturing in case the mean is shifted to 16.05 inches.

c. Calculate the probability of not disturbing the manufacturing if mean shifts to 16.25 inches.

Between 16.25 and 15.75 with \(\mu = 16.25\). This is the pvalue of Z when X = 16.25 subtracted by the pvalue of Z when X = 15.75.

X = 16.25

\(Z = \frac{X - \mu}{s}\)

\(Z = \frac{16.25 - 16.25}{0.1}\)

\(Z = 0\)

\(Z = 0\) has a pvalue of 0.5

X = 15.75

\(Z = \frac{X - \mu}{s}\)

\(Z = \frac{15.75 - 16.25}{0.1}\)

\(Z = -5\)

\(Z = -5\) has a pvalue of 0

0.5 - 0 = 0.5

0.5 = 50% probability of not disturbing the manufacturing if mean shifts to 16.25 inches.

Answer:

\( \displaystyle{ \theta = \dfrac{5\pi}{6} ,\dfrac{7\pi}{6}}\)

Step-by-step explanation:

Given the equation:

\( \displaystyle{2 \cos \theta = - \sqrt{3} }\)

Divide both sides by 2:

\( \displaystyle{ \cos \theta = \dfrac{- \sqrt{3}} {2}}\)

Cosine is negative in Quadrant 2 and 3. Therefore, we have to find measurement that satisfies the equation. We know that:

\( \displaystyle{ \cos \dfrac{\pi}{6} = \dfrac{ \sqrt{3} }{2}}\)

π/6 is a reference angle. Therefore, to find √3/2 in negative form (for cosine), we have to subtract π by π/6 (Q2) and also add π by π/6 (Q3) as well.

Q2

\(\displaystyle{ \pi - \dfrac{\pi}{6} = \dfrac{6\pi}{6} - \dfrac{\pi}{6}} \\ \\ \displaystyle{ \pi - \dfrac{\pi}{6}= \dfrac{5\pi}{6}}\)

Q3

\( \displaystyle{\pi + \dfrac{\pi}{6} = \dfrac{6\pi}{6} + \dfrac{\pi}{6}} \\ \\ \displaystyle{\pi + \dfrac{\pi}{6} = \dfrac{7\pi}{6}}\)

Since the interval is from 0 to 2π, only two measurements above (5π/6 and 7π/6) are only solutions to the equation.

\( \displaystyle{ \therefore \theta = \dfrac{5\pi}{6} ,\dfrac{7\pi}{6}}\)

Answer:

170240

Step-by-step explanation:

The given triangle  ∆QRT is isosceles triangle.

What is isosceles triangle?

  Triangles with two equal sides are referred to as isosceles triangles. Also equal are the two angles that face the two equal sides. To put it another way, "An isosceles triangle is a triangle with two congruent sides." Assume that the sides AB and AC of the triangle ABC are equal, in which case the triangle ABC is an isosceles triangle with B = C. According to the theorem, "if the two sides of a triangle are congruent, then the angle opposite to them is also congruent."

Here the given points are Q(-2,-1) , R(1,5) , T(-8,-4).

Using distance formula

Now , The Distance between the points can be measure as :

D=\(\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)

QR = \(\sqrt{(1+2)^2+(5+1)^2}\)

=>QR=\(\sqrt{3^2+6^2} = \sqrt{9+36} =\sqrt{45}=3\sqrt{5\) unit

Now RT = \(\sqrt{(-8-1)^2+(-4-5)^2} =\sqrt{9^2+9^2} \\\)

=>RT=\(\sqrt{81+81}=\sqrt{162} = 9\sqrt{2}\) unit

Now TQ  = \(\sqrt{(-2+8)^2+(-1+4)^2} =\sqrt{6^2+3^2} \\\)

=>TQ=\(\sqrt{36+9}=\sqrt{45}=3\sqrt{5}\) unit.

Here QR=TQ then

Hence the given triangle is isosceles triangle.

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The rate of car is 35 mph.

Given that engineer traveled 140 mi by car and then an additional 750 mi by plane. The rate of the plane was three times the rate of the car.

Let c be the rate of wind.

215 + c = rate of plane with wind

215 - c = rate of plane against wind

Therefore, the travel time =distance/rate

⇒ 750/(215+c) = 540/(215-c)

Cross multiplying we get,

540(215+c) = 750(215-c)

116100+540c = 161250-750c

1290c = 45150

c=35

Hence, the rate of car is 35 mph.

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Answer:

I don't know definitely, but in guessing A) 2X+3Y=-25    x-y=5

Step-by-step explanation:

2 times more than X, means that whatever x is, its multiplied by 2, giving 2X, also making it the larger number, even if y is a smaller number.

For example: x=5   2x5= 10, and y=3  3x3= 9

Im sorry if its wrong

For binary class classification, assumptions are necessary in a way:

Given that

From Boyer Naive classifier,

We evaluate (ai | vj) is given below

(ai | vj) = n(e) + m(p) / n + m

Here,

m = equivalent sample size

n(e) = number of training examples

for which v = vj and a = ai

n(i) = number of training example for which v = vj

P = a prior estimate for P(ai | vj)

Here, we calculate that

P(SUV | yes), P(Red | yes), P(Domestic | yes)

P(SUV | no), P(Red | no), P(Domestic | no)

We evaluating this value like

yes:

RED :                             SUV:                            DOMESTIC:

n = 5                              n = 5                             n = 5

n(c) = 3                          n(c) = 1                           n(c) = 2

P = 0.5                          P = 0.5                           P = 0.5

m = 3                              m = 3                            m = 3

Therefore, with the above calculation we can justify that the simplifying assumptions are necessary in a binary class classification.

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The lateral surface area of a rectangular prism is 2(l + w)h sq units.

A rectangular prism is a three-dimensional shape, that has six faces (two at the top and bottom and four are lateral faces).

The lateral surface area of a rectangular prism is given by

Where l, w, and h are the length, width, and height, respectively. To find the lateral surface area, we need the values of l, w, and h.

Without these values, it is not possible to determine the lateral surface area of the rectangular prism.

Therefore, the lateral surface area of a rectangular prism is 2(l + w)h sq units.

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Answer: 34,650 permutations

The length of line having mid point B ⇒  7x - 2.

Given that,

B is the mid point of AC

And also given that

length of segment AB = 2x+5

And length of segment BC = 5x - 7

A straight path established by linking a group of points in a plane is known as a line. It is a one-dimensional form with only a length and no width or height. A line can extend indefinitely in both ends in opposite directions. To indicate a line, we can use upper case characters.

Now since B is the mid point of AC,

So, The line AC is sum of the line segment AB and line segment BC.

Therefore,

AC = AB+BC

     = (2x+5)+(5x - 7)

     = 7x - 2

Hence,

The length of AC is 7x - 2

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Answer: So, the sales tax on the item is $49.

Step-by-step explanation:

The sales tax rate is already given as 14%. It is stated that the item costs $350 before tax, and the sales tax rate is 14%. Therefore, the sales tax amount can be calculated by multiplying the cost of the item by the tax rate:

Sales tax amount = $350 * 14% = $350 * 0.14 = $49

So, the sales tax on the item is $49.

Answer:

y-intercept = (0, 16)

x-intercept = none

Explanation:

Given the below function;

To be able to graph the above function, let's choose values of x and determine the corresponding values of fx);

When x = -1;

When x = 0;

When x = 3;

Wen x = 6;

See below the graph of the given function;

The y-intercept of a graph is the point where the graph crosses the y-axis. In the above graph, we can see that the graph crosses the y-axis at x = 0 and y = 16, therefore its y-intercept is (0, 16)

The x-intercept of a graph is where the graph crosses the x-axis. We can see from the above graph that the graph does not cross the x-axis, therefore the x-intercept does not exist.

Answer: 120 degrees.

Step-by-step explanation: A 90-degree angle would be a right angle. The segments would be perpendicular. In a 180-degree angle, the line would be flat. This angle is between these two angle measures. It appears quite close to a 120-degree angle such as the one shown below:

Because of this, I would estimate that the angle is around 120 degrees. It may be 130 degrees or 110 degrees but it appears to be approximately 120 degrees.

Answer:

After solving the pair of simultaneous equations we get x=5 and y=1. Solution Set = {5,1}

Step-by-step explanation:

We need to solve the pair of simultaneous equations

\(0.6x-4y=-1\\0.8x-3.5y=0.5\)

We can solve using substitution method.

Let:

\(0.6x-4y=-1--eq(1)\\0.8x-3.5y=0.5--eq(2)\)

Find value of x from eq(1) and put it in eq(2)

\(From \ eq(1):\\0.6x-4y=-1\\0.6x=-1+4y\\x=\frac{-1+4y}{0.6}\)

Putting in equation 2

\(0.8x -3.5y =0.5\\0.8(\frac{-1+4y}{0.6})-3.5y=0.5\\1.33(-1+4y)-3.5y=0.5\\-1.33+5.32y-3.5y=0.5\\-1.33+1.82y=0.5\\1.82y=0.5+1.33\\1.82y=1.83\\y=\frac{1.83}{1.82}\\y=1.00\)

So, we get value of y= 1.00

Now finding value of x by putting value of y in eq(1)

\(x=\frac{-1+4y}{0.6}\\x= \frac{-1+4(1.00)}{0.6}\\x=\frac{3}{0.6}\\x=5\)

We get value of x = 5

So, After solving the pair of simultaneous equations we get x=5 and y=1. Solution Set = {5,1}

Answer:

Step-by-step explanation:

7+5b²-2a²+7b²+66-20a-3

first collect like terms

5b²+7b²-2a²-20a+7-3

12b²-2a²-20a+4

hope it's helpful

THANK YOU.