C write function distance that calculates the distance between two points (x1, y1) and (x2, y2). all numbers and return values should be of type double.

To solve the inequality -8x - 10 > 7x + 20, combine like terms, isolate the variable term, and solve for x. The correct answer is D) x < -2.

We need to solve the inequality -8x - 10 > 7x + 20.

Therefore, option D.) x < -2 is the correct answer.

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We do not square the deviations when calculating the average deviation, because the sum of all deviation scores around the mean equals zero.

It is the average value of the set given.

It is calculated as:

Mean = Sum of all the values of the set given / Number of values in the set

We have,

The average deviation is calculated by taking the absolute value of the deviations from the mean, summing them, and then dividing by the total number of observations.

This gives us a measure of the average distance between each observation and the mean.

The formula for the average deviation is:

average deviation = Σ |x - mean| / n

where x is an observation, mean is the mean of the observations, and n is the total number of observations.

By taking the absolute value of the deviations, we ensure that negative and positive deviations do not cancel each other out when we sum them.

Thus,

We do not square the deviations when calculating the average deviation, because the sum of all deviation scores around the mean equals zero.

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The given expression in its simplest form is 8.

The given expression is (-11x/2+3)-2(-11x/4-5/2).

We need to write the given expression in the simplest form.

A simplified expression is one in which each base is written only once, there are no negative exponents and no parentheses. Simplifying an expression makes it easier to solve complex problems, and using the rules for exponents makes simplifying expressions easier.

Now, the given expression can be simplified as follows:

(-11x/2+3)-2(-11x/4-5/2)

=-11x/2+3+22x/4+10/2

=-11x/2+22x/4+3+5

=-22x/4+22x/4+8

=8

Therefore, the given expression in its simplest form is 8.

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The factors of a quadratic equation will be (qx + r) and (sx+t). If the solutions are all integers, you may be able to quickly find q, r, s and t. The advantage of this method is that factoring can be very fast. The disadvantage is that factoring may not work; for instance, factoring will not find solutions that are not integers.

Completing the square is a multistep process. The main idea is to convert the original equation into one of the form (x + a)^2 = b, where a and b are constants. The advantage of this method are that it always works and that completing the square gives some insight into how algebra works more generally. The disadvantage is that this method is complex.

The quadratic formula is x = (-b +- (b*2 - 4ac)^.5))/2a. The advantages of this method are that the quadratic formula always works and is straightforward. The disadvantages are that the formula provides no insight and can become a rote technique.

Sometimes, you can guess an approximate solution. Then, you can increase or decrease your guess, depending on whether the result from your first guess is too big or too small. The advantages of this method are that guessing can be very fast if you guess right, and can get an approximate answer quickly, if that is all you need. The disadvantage is that sometimes you won't be able to make a good guess .

The rate of using water per minute will be 8.5 gallons per minute.

The rate of flow of water is defined as the amount of water or any liquid flowing in a unit of time. If the gallons of water are flowing in some minutes the rate will be measured in the gallons of water.

Given that Kim learned in her science class that every 2 minutes she spends in the shower, she uses 17 gallons of water.

The rate of flow of water will be calculated as:-

Rate of flow = Volume of water / Time

Rate of flow = 17 / 2

Rate of flow = 8.5 gallons per minute

Therefore, the rate of using water per minute will be 8.5 gallons per minute.

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Answer:

Samuel's friends have a total of 12 pets.

Explanation:

To find the total number of pets Samuel's friends have, we simply add up the number of each type of pet:

Number of Cats: 5

Number of Dogs: 3

Number of Rabbits: 1

Number of Guinea Pigs: 3

Total number of pets = 5 (cats) + 3 (dogs) + 1 (rabbits) + 3 (guinea pigs) = 12

So, Samuel's friends have a total of 12 pets.

Answer:

12 square unit.

Step-by-step explanation:

Since, the area of a triangle having vertices [tex](x_1, y_1)[/tex], [tex](x_2, y_2)[/tex] and [tex](x_3, y_3)[/tex] is,

[tex]A=\frac{1}{2}|x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2)|[/tex]

Here, the vertices of the triangle are (0, −2), ​(8, −2) and ​ (9, 1),

Hence, area of the given triangle is,

[tex]A=\frac{1}{2}|0(-2-1)+8(1+2)+9(-2+2)|[/tex]

[tex]=\frac{1}{2}| 0+24+0|[/tex]

[tex]=\frac{24}{2}[/tex]

[tex]=12\text{ square unit}[/tex]

-6 ,4 but speed can't go negative so the answer would be 4.

Given two lines are parallel, their slopes are equal. After calculating the slopes of the two lines and solving the equation, we find that the value of 'k' in the question is 4.

In the realm of Mathematics, when two lines are parallel, their slopes are equal. The line y = x + 1 has a slope of 1. To find the slope of the line through (−7,−2) and (−1, k), use the formula for slope, which is m = (y2 - y1) / (x2 - x1). Here, (x1,y1) is (−7,−2) and (x2,y2) is (−1, k). Hence, the equation for slope would look like this: m = (k - (-2)) / (-1 - (-7)).

As the slopes are equal, we can form an equation 1 = (k + 2) / 6. Solving this equation will give us the value of k. By multiplying both sides by 6, we obtain 6 = k + 2. Consequently, subtracting 2 from both sides, we get k = 4.

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Answer:

B.

Step-by-step explanation:

when trying to calculate the volume when being given the M or the mass, and the D or density, hears is the calculations needed for that: P=M/V, which also means volume is the mass divided by the volume, or density. Hence, the answer would be mass divided by density. hope this helps!!! (also, please give me brainliest.)

Volume is calculated given mass and density is Mass divided by density.

Volume is a measure of occupied three-dimensional space. It is often quantified numerically using SI derived units (such as the cubic meter and liter) or by various imperial units (such as the gallon, quart, cubic inch).

Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration (change of velocity) when a net force is applied.

Density is defined as a measure of how compact the mass in a substance or object is.

Since, density of a substance is measure as the ratio of its mass to its volume,

Density =  Mass/Volume

or, Density x volume =  mass

or, Volume =  Mass/Density

Hence,Volume is calculated given mass and density is Mass divided by density.

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For an expression equivalent to, let's say, -8, you could do: -2 + -6.

Answer:

y - 9 = 22(x - 3)

Step-by-step explanation:

Answer:

System of equation: 0.75(x+y)=120 and x-y=120

A is correct

Step-by-step explanation:

An aircraft travels with the wind for 120 miles in 0.75 of an hour.

The return trip is flown against the wind and takes exactly 1 hour.

Let speed of aircraft be x mph and speed of wind y mph

Formula:

[tex]speed=\dfrac{Distance}{Time}[/tex]

Case 1: When aircraft along with wind

Speed = x+y

Time = 0.75

Distance = 120

[tex]x+y=\dfrac{120}{0.75}[/tex]

[tex]0.75(x+y)=120[/tex]

0.75(x+y)=120

Case 2: When aircraft against with wind

Speed = x-y

Time = 1

Distance = 120

[tex]x-y=\dfrac{120}{1}=120[/tex]

x-y=120

Hence, The system of equation are 0.75(x+y)=120 and x-y=120