Find the slope of (-2,-5) and (8,-5) And find the slope of the line passing through the points (4,9) and (4,-7)

Answer: 8

Step-by-step explanation:

11-1 [19- (2+15)]​

Step 1: 11-1 (19-17)

Step 2: 11-1+2

Step 3: 11-3

Step 4: 8

Hope it helps!!!

Answer:

Step-by-step explanation:

9

Answer:

It turns out that all three altitudes always intersect at the same point - the so-called orthocenter of the triangle. The orthocenter is not always inside the triangle. If the triangle is obtuse, it will be outside. To make this happen the altitude lines have to be extended so they cross.

Answer:

Option C. 7,000 − 36x

Step-by-step explanation:

Let

y ----> depreciated value of the car

x---> rate of depreciation

t ----> the time in months

we know that

The linear equation that represent this situation is

y=7,000-xt

For

t=3 years

Convert to months

t=3*12=36 months

substitute

y=7,000-x(36)

y=7,000-36x

Answer:

308.65 Pounds

Step-by-step explanation:

Since one kilogram is 2.20462 pounds you can multiply 140 by 2.20462 to get 308.6468 and rounded to the nearest hundredth it would be 308.65.

The weight of a 140 kilogram person in pounds is approximately 308.64 pounds, when rounded to the nearest hundredth.

To find the weight of a 140-kilogram person in pounds, we first need to understand that weight is a measure of the force of gravity on an object and can be calculated by multiplying the mass of the object by the acceleration due to gravity.

However, here, we are converting kilograms to pounds, which is a conversion of mass units, not weight. The conversion factor from kilograms to pounds is approximately 2.2046.

Therefore, to convert 140 kilograms into pounds, we multiply 140 by 2.2046:

140 kg * 2.2046 = 308.644 pounds.

And rounded to the nearest hundredth, we get 308.64 pounds.

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The closing bracket ']' in the inequality solution set (–∞, 6.5] indicates that 6.5 is included, making it a solution to the inequality.

The solution to an inequality is (–∞, 6.5]. To determine if 6.5 is a solution to the inequality, we look at the notation used. The parenthesis '(' indicates that the number at this end of the interval is not included in the solution set, while the bracket ']' indicates that the number at this end is included. Since 6.5 is associated with a closing bracket, it means that 6.5 is indeed a solution to the inequality. Therefore, any number less than or equal to 6.5 is a solution to this particular inequality.

The correct explanation among the given options is the following:

"The solution includes numbers from negative infinity to 6.5. Because a bracket is used, the solution includes 6.5."

In interval notation, brackets ([ and ]) indicate that the endpoint is included in the solution, while parentheses (( and )) indicate that the endpoint is not included.

Here, with (-∞, 6.5], the closing bracket means 6.5 is included in the solution to the inequality.

Thus, 6.5 is a valid solution to the inequality.

The complete question is : The solution to an inequality is (-, 6.5]. Is 6.5 a solution to the inequality? Explain your answer

The solution includes numbers from negative infinity to 6.5. Because a bracket is used, the salution does not

include 6.5. The solution includes numbers from 6.5 to infinity. Because a parenthesis is used, the solution does not include 6.5.

The solution is the point(, 6.5). Because a bracket is used, 6.5 is a solution to the inequality.

The solution includes numbers from negative infinity to 6.5. Because a bracket is used, the solution includes 6.5.

Answer:

Option A

Step-by-step explanation:

Answer:

[tex]\large\boxed{\text{the sloe}\ m=\dfrac{2}{3}}[/tex]

Step-by-step explanation:

[tex]\text{Let}\\\\k:y=m_1x+b_1\\\\l:y=m_2x+b_2\\\\l\ \parallel\ k\iff m_1=m_2\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}[/tex]

[tex]\text{We have the slope}\ m_1=\dfrac{2}{5}.\\\\\text{The slope of parallel line is the same:}\ m_2=\dfrac{2}{5}[/tex]

Answer:

C and D

Step-by-step explanation:

D is the exact same.

For C this is already proven but you can test this by choosing any number for K (4) and multiply it by 1/2. You get 2 which is the same as 4/2.

The expression which is equivalent to the expression, K/2 is; Choice D: k/2.

According to the question;

Among the choices; Choice D: k/2 is the exact same as the expression K/2.

However, Choice C if written as (1/2)k is equivalent to k/2 as they both mean half of k.

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Check the picture below.

The measure of an angle formed by intersecting secants is half the sum of the measures of the intercepted arcs is:    [tex]\[m\angle L = \frac{1}{2}(mAB + mCD)\][/tex]

The correct option is (B).

The problem step by step:

1. Given Information:

  - We have a circle with intersecting secants labeled as A, B, C, and D.

  - We need to find the correct equation that describes the relationship between the measures of angles and arcs formed by these intersecting secants.

2. Understanding the Problem:

  - When two secants intersect inside a circle, they create several angles and arcs.

  - Let's focus on angle[tex]\(m\angle L\)[/tex] and the corresponding arcs AB and CD.

3. Relationship Between Angle and Arc:

  - The measure of an angle formed by intersecting secants is half the sum of the measures of the intercepted arcs.

  - In other words:

[tex]\[m\angle L = \frac{1}{2}(mAB + mCD)\][/tex]

4. Answer:

  - The correct equation is:

   [tex]\[m\angle L = \frac{1}{2}(mAB + mCD)\][/tex]

Answer:

A Quadratic Equation can have upto 2 roots maximum. So,if one of the roots is a Real number, there are following two possibilities:

1) The other root is also a real number, but a different number

2) Its a repeated root, so the other root is the same number.

The other root cannot be a complex number as its not possible for one root to be real and other to be complex. Either no root will be complex or both will be complex roots.

Following are 3 possibilities for the roots of a quadratic equation:

Answer:

Option B is correct

Step-by-step explanation:

The graph represent  the negative correlation.

In negative correlation there is inverse relationship between two variables. If value of one variable is increasing then the value of other variable is decreasing.

As seen from the graph when the value of x is increasing the value of variable y is decreasing

So, Option B negative correlation is correct.

Answer:

75.00

Step-by-step explanation:

1500*0.05

because 5% is her interest you convert 5% into a decimal = 0.05

then you multiply 1500 by 0.05 and you get 75.00

Answer:

x=8

Step-by-step explanation:

Cause 8+1 =9

Answer:

8

Explanation:

to get the answer we have to use the opposite of addition which is subtraction. we flip around the equation so now it would be 9 - 1 = ?

9 minus 1 is 8.

that is how you get the answer.

Answer:

E)82

Step-by-step explanation:

The formula is

A^2 + B^2= C^2

the two sides that make up the right angle is always A and B

Answer:

E

Step-by-step explanation:

Since the triangle is right use Pythagoras' theorem to solve for BC

The square on the hypotenuse (BC) is equal to the sum of the squares on the other 2 sides, that is

BC² = 80² + 18² = 6400 + 324 = 6724 ( take the square root of both sides )

BC = [tex]\sqrt{6724}[/tex] = 82 → E

Answer:

$ 2533.594

Step-by-step explanation:

The saving balance is found by the equation;

[tex]SV=P*[((1+i)^n -1)/i][/tex]

where P=monthly payments, i= interest rate n=period

Given ;

P= $250   n=9months and i=6%(0.04) per year, find savings balance?

Note than n is given in months so we divide the rate by 12 i.e

0.04/12 =0.003

Substitute values in the formulae;

SV= 250 × [((1+0.003)^9 - 1)/0.003)]

[tex]SV= 250* [((1+0.003)^9 -1 )/0.003]\\\\SV=250*[(1.003)^9 -1)/0.003]\\\\SV=250*[(1.0304 -1)/0.003]\\\\SV=250*[0.0304/0.003]\\\\SV=250*10.134\\\\SV=2533.594[/tex]

Answer:

44 bicycles.

Step-by-step explanation:

First we find how much profit he made by subtracting 6200 by 4000. When we do this, we get 2200.

Then, we divide 2200 by 50, because he earned 50 for each bike, which gives us 44.

Answer:

there were 124 bicycles. : )

Step-by-step explanation:

Answer:

0.63

Step-by-step explanation:

The fraction is 5/8. It is equivalent to ...

5/8 = (5·125)/(8·125) = 625/1000 = 0.625

This exact decimal equivalent rounds to 0.63.

_____

It can be useful to memorize the decimal equivalents of common fractions, including multiples of 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9, 1/10.

Answer:

3.75

Step-by-step explanation:

It would cost Casey $3.75

If you divide 52.50 by 14 you get 3.75

this is a way to find the cost of one gallon

Hope this helps :)

If it does please mark brainliest :D

- A.Hazle <3

e = 1/2 mv ^2

Times 2 for both sides.

2e = mv^2

And this is because you are trying to find the formula when solved for v.

And I can help you find that formula which is:

mv^2 = 2e

v^2 = 2e/m

v = √(2e/m)

Answer:

c) (3-7x^2)(x-3)

Step-by-step explanation:

-7x^3+21x^2+3x-9

Factor out a -7x^2 from the first two terms and a 3 from the last two terms

-7x^2 (x -3) +3(x-3)

Now factor out (x-3)

(x-3) (-7x^2+3)

Rearranging)

(x-3) (3-7x^2)

Answer:

True

Step-by-step explanation:

When you are given an equation of a line in the plane, it´s like if they´ve given you the map to a line, and in this case it´s really easy to calculate the value of the different points on X and Y and by that you just have to immagine a value for one of the variables to calculate the other one, most cases is always X the one that you give the value to, and then you just calculate the Y.

Answer:

True.

Step-by-step explanation:

An equation for a line in the plane allows you to find x- and y-coordinates of any point on that line.

Answer:

[tex]x<-2\\\\y\leq-x-2[/tex]

Step-by-step explanation:

From the given graph , the shaded region is bounded by two lines ( one is dotted and another is solid line).

Dotted line :  It is parallel to y-axis and intersecting the x -axis at .

so the equation of the line is x=-2.

But it is represented in dotted form it means the inequality sign used here is strictly less than.

i.e. the equation for dotted line = [tex]x<-2[/tex]

Solid line : It is passing through (-2,0) and (-1,-1).

Equation of line passing through (a,b) and (c,d) :-

[tex](y-a)=\dfrac{d-b}{c-a}(x-b)[/tex]

Then equation of sold line:

[tex](y-0)=\dfrac{-1-0}{-1-(-2)}(x-(-2))\\\\\Rightarrow\ y=\dfrac{-1}{-1+2}(x+2)\\\\\Rightarrow\ y=\dfrac{-1}{1}(x+2)\\\\\Rightarrow\ y=-x-2[/tex]

Hence, the inequality represents solid line(≤)= [tex]y\leq-x-2[/tex]

Hence, the system of linear inequalities is graphed will be :-

[tex]x<-2\\\\y\leq-x-2[/tex]

Answer:

[tex]\text{The formula of a volume of a cylinder:}\\\\V=BH\\\\B-base\ area\\H-height\\\\\large\huge\boxed{\bold{B.\ V=Bh}}[/tex]

Answer: [tex]V=B h[/tex]

Step-by-step explanation:

A cylinder is a solid shape having two circular faces connected by a curved surface.

The volume of a cylinder is given by :-

[tex]V=\pi r^2 h[/tex], where r is radius of the base of the cylider and h is height of the cylinder.

Here , the base area of the cylinder is:

[tex]B=\pi r^2[/tex]

Thus,  the formula for the volume of a cylinder is given by :-

[tex]V=B h[/tex]

To solve this you must use a proportion like so...

[tex]\frac{part}{whole} = \frac{part}{whole}[/tex]

60 is a percent and percents are always taken out of the 100. This means that one proportion will have 60 as the part and 100 as the whole

We want to know out of what number is 12 60%. This means 12 is the part and the unknown (let's make this x) is the whole

[tex]\frac{12}{x} =\frac{60}{100}[/tex]

Now you must cross multiply

12*100 = 60*x

1200 = 60x

To isolate x divide 60 to both sides

1200/60 = 60x/60

20 = x

This means that 60% of 20 is 12

Hope this helped!

~Just a girl in love with Shawn Mendes

The number that 60% of 20 is 12.

We know that 60 is a percent and percent is always taken out of the 100. which  means that one proportion will have 60 as the part and 100 as the whole

We need  to know out of what number is 12 60%. This means 12 is the part and the unknown, x is the whole

Now we must cross multiply;

12*100 = 60*x

1200 = 60x

To isolate x divide 60 to both side;

1200/60 = 60x/60

20 = x

This, means that 60% of 20 is 12

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Answer:

1/10

Step-by-step explanation:

Answer:

300 ft-lbs

Step-by-step explanation:

For work like this,

Just multiply 100 times 3.

You always just multiply the two numbers

Example:

Calculate the work done.

A crane lifts 5,000 newtons to the top of a roof which is 6 meters high.

3,000 ft-lbs

30,000 Nm

5,000 Nm

300 Nm

5,000 x 6 = 30,00

it can also be done like this

5 x 6 = 30

+ 00 = 30,00

The work done is 300 ft-lbs, the correct option is D.

The multiplication of the magnitude of displacement d and the component of the force that is in the direction of displacement is called work done.

Work done is positive when the energy leaves the system. Here, the system is making an effort on the surroundings.

A tractor pulls a heavy log with a force of 100 pounds.

The log moves 3 feet.

The work done is given by;

[tex]\rm Work \ done=Force \times Displacement\\\\Work \ done= 100 \times 3 \\\\Work \ done=300\ ft-lbs[/tex]

Hence, the work done is 300 ft-lbs, the correct option is D.

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Answer:

i cant see the picture

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

To find a significant figure you just count how many numbers are before and after the decimal place but if the first number is zero then it does not count.

Final answer:

The values with 3 significant figures are A. 10.1 and D. 129, as non-zero numbers are always significant, and there are no leading, captive, or trailing zeros to consider in these cases.

Explanation:

The values that have 3 significant figures are:

A. 10.1

D. 129

In A, all the digits are significant because they are all non-zero numbers. In D, similarly, all digits are significant since non-zero numbers are always counted as significant figures.

For the options not chosen:

B. 100.05 has 5 significant figures because zeros between non-zero numbers are significant and so are the ending non-zero numbers.

C. 120 may be seen as having 2 or 3 significant figures depending on whether the zero is considered significant; additional context such as writing the number in scientific notation or a decimal point (120.) is needed to clarify its significance.

[tex]\textbf{$\left[\begin{array}{cc}x & y\\-3 & 12\\-6 & 24\\-9 & 36\end{array}\right]$}[/tex]

Two variables have a proportional relationship if the ratios are equivalent. In other words, in this type of cases two quantities vary directly with each other, so we can write this in a mathematical language as follows:

[tex]y=kx[/tex]

Here [tex]k[/tex] is the slope of the linear equation defined above. So, verifying that k is constant we have:

[tex]k=\frac{24-12}{-6-(-3))}=\frac{36-24}{-9-(-6)}=\frac{36-12}{-9-(-3)}=-4 \\ \\ \therefore \boxed{k=-4}[/tex]

One way to prove this is by writing the equation that represents the table. From the two-point intercept form of the equation of a line we have:

[tex]y-y_{1}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}(x-x_{1}) \\ \\ P(x_{1},y_{1})=P(-3,12) \\ \\ P(x_{2},y_{2})=P(-6,24) \\ \\ Subtituting \ x_{1}, x_{2}, y_{1}, y_{2}: \\ \\ y-12=\frac{24-12}{-6-(-3)}(x-(-3)) \\ \\ y-12=-4(x+3) \\ \\ Solving: \\ \\ y-12=-4x-12 \\ \\ Adding \ 12 \ to \ both \ sides: \\ \\ y-12+12=-4x-12+12 \\ \\ \boxed{y=-4x}[/tex]

So, this implies that the ordered pairs of the last option represent a proportional relationship

Answer:

Step-by-step explanation:

In this case, an proportional realtionship refer to the existence of a contant ratio of change between variables, that is, each y-value can be found by multiplying each x-value with this constant ratio of change.

So, notice that in the first table, is we multiply by four, you can get the first two pairs, but the last one doesn't fall into the ratio. That's not the answer.

Similarly, the second table doesn't have a constant ratio of change, because the last pair has different ratio.

However, the last table shows a constant ratio of change, because each x-value can be multiplied by -4, to get each y-value, that is

-3 x -4 = 12

-6 x -4 = 24

-9 x -4 = 36

Therefore, the right answer is the last table.