on a horizontal number line, numbers are what

down from 0
the left from 0
to the right of 0
up from 0

Answer:

The error in this problem is the answer because -3.7+(-0.25) does not equal -0.62

Step-by-step explanation:

-3.7+(-0.25) equals -3.95

The function for the points are  y = -15x - 5

From the information given, we have that;

The points are;

(1/3,0) (-2 3/4,0) and (0,-5)

Using the point-slope form of a linear equation, we have;

y - y₁ = m(x - x₁)

Such that;

Using (1/3, 0) and (0, -5), we have that the slope is;

m = (0 - (-5))/0 -1/3)

expand the bracket

= 5 / (-1/3)

= -15

Now, take any of the given points and substitute the values

Using (1/3, 0), we get;

y - 0 = -15(x - 1/3).

y = -15x - 5.

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The function for the points solved by  (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)

We have given the points:

(1/3,0) (-2 3/4,0) and (0,-5)

Using the formula of linear equation

\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)                                                          

Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)

that is 1/3 = \(a\), 0 = \(a_{1}\) and

0 = \(b\), -5 = \(b_{1}\)

\(x\) refers to the slope of line (take any variable)

Now for finding the value of \(x\),

\(x=a-a_{1}/b-b_{1}\)

inserting the values,

\(x=[0-[-5]]/[0-1/3]\\x= -15\)

Substitute the value of \(x\) in the equation

\(a-0=-15[b-1/3]\)

By simplifying the equation, we get

\(a=-15b-5\)

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Answer:

f(x)=1/16(x-2)^2+2

Step-by-step explanation:

The Equation can be written like this:

f(x) = 1/(4p)(x -h)^2 +(k-p)

where (h, k) is the focus, and p is half the distance between focus and directrix. Here, (h, k) = (2, 6) and p=(6-(-2))/2 = 4. So the equation is ...

 f(x) = 1/16(x -2)^2 +2

Answer:

Sure, I'll explain the cosine rule and sine rule in simple terms:

The cosine rule (also known as the law of cosines) is used to find the length of a side or the measure of an angle in a triangle given the lengths of the other sides and the angle between those sides. It states that c^2 = a^2 + b^2 - 2ab cos(C), where c is the length of the side opposite angle C, and a and b are the lengths of the other two sides.

Here's an example of how to use the cosine

Suppose we have a triangle with sides a=6, b=8, and an angle between them c=45 degrees. We want to find the length of the remaining side of the triangle, side a.

Using the cosine rule:

a^2 = b^2 + c^2 - 2bc * cosA

where A is the angle opposite side a, we can plug in our values and solve for a:

a^2 = 8^2 + 6^2 - 2(8)(6) * cos(45)

a^2 = 64 + 36 - 96 * 0.707

a^2 = 10.56

a = sqrt(10.56)

a = 3.25 (rounded to two decimal places)

Therefore, the length of side a is approximately 3.25 units.

Answer:

Step-by-step explanation:

Answer:

V=M/D

Step-by-step explanation:

D=M/V

multiply both sides by V

divide both sides by d

V=M/D

Answer:

Step-by-step explanation:

The y-intercept of the line of fit is 70, which means that a student who does not study at all (0 hours) is predicted to earn a grade of 70%. In other words, the line of fit starts at the point (0,70), indicating that even if a student does not study at all, they can still earn a grade of 70% on the test. However, it should be noted that this prediction may not always hold true for all students and situations. The y-intercept provides a useful reference point for interpreting the rest of the data, and helps to establish a baseline for the relationship between study time and test grades.

Answer:

A function is a mathematical relation in which each input (domain value) is associated with exactly one output (range value). In other words, for a relation to be a function, each input can have only one corresponding output. Let's analyze the given pairings:

(a person’s age in years, that same person’s height in inches) - This can be a function because one person's age in years should correspond to a single height in inches.

(a person’s weight in pounds, that same person’s height in inches) - This can also be a function because one person's weight in pounds should correspond to a single height in inches.

(a person’s height in centimeters, that same person’s height in inches) - This can be a function because one person's height in centimeters should correspond to a single height in inches.

(a person’s telephone number, that same person’s height in inches) - This may not necessarily be a function. It's possible for two different people to have the same height in inches but different telephone numbers.

So, the pairings that always describe a function are:

(a person’s age in years, that same person’s height in inches)

(a person’s weight in pounds, that same person’s height in inches)

(a person’s height in centimeters, that same person’s height in inches)

These three pairings meet the criteria of a function, where each input corresponds to a unique output.

The pairing that always describes a function is option C. (a person’s height in centimeters, that same person’s height in inches)

A pairing describes a function when each unique input (domain element) is associated with exactly one unique output (range element). In other words, there should be no ambiguity or multiple outputs for a single input. Let's analyze the given pairings:

1. (a person’s age in years, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same age, but they might have different heights. So, there can be multiple outputs for the same input (age).

2. (a person’s weight in pounds, that same person’s height in inches): Similar to the first pairing, this may not always describe a function because different people can have the same weight but different heights.

3. (a person’s height in centimeters, that same person’s height in inches): This pairing describes a function because for each unique height in centimeters, there is only one corresponding height in inches.

4. (a person’s telephone number, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same telephone number, but they might have different heights. So, there can be multiple outputs for the same input (telephone number).

So, the pairing that always describes a function is: (a person’s height in centimeters, that same person’s height in inches)

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Answer:

A!

Step-by-step explanation:

1. Multiply -1500 x 1 first

2. Then... add that number by 8350, and then you will get the same answer as shown in the elevation.

I hoped this helped! Have a good day :)

Answer:

55 name tags are red

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

The first option, V ≈ 1607.7 in²

Step-by-step explanation:

Find the volume of the given cylinder.

\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)

Given:

r = 8 in

h = 8 in

π = 3.14

Find:

V = ?? in³

\(\hrulefill\)

Now solving,

Substitute the given values into the formula:

=> V = (3.14)(8)²(8)

Using a calculator to simplify:

=> V = 1607.68 in²

Rounded to the nearest tenth:

∴ V ≈ 1607.7 in²

Thus, the first option is correct.

Answer:

(1, -1)

Step-by-step explanation:

To estimate the solution to the system of equations, we can substitute the given coordinates into the equations and check which one satisfies both equations most closely.

Let's substitute the coordinates into the equations:

For (-1, 0):

-3(-1) + 0 = 2

3 ≠ 2

For (-1, -1):

-3(-1) + (-1) = 2

2 ≠ 2

For (1, 0):

-3(1) + 0 = 2

-3 ≠ 2

For (1, -1):

-3(1) + (-1) = 2

-4 = 2

From the given options, (1, -1) is the best estimate of the solution to the system of equations since it satisfies both equations most closely.

Hope this helps!

Answer:

c

Step-by-step explanation:

Answer:

x= 4

Step-by-step explanation:

2x + 3( 5x - 7) = 47

2x + 15x - 21 = 47

17x -21 = 47

17x = 47 + 21

17x = 68

x = 68 / 17

x = 4

hope it helps plzz mark me brainliest

Answer:

X = 4 plz brainliest

Step-by-step explanation:

2x+3(5x-7)=47

Distribute

2x + 15x - 21 = 47

Combine like terms

17x -21 = 47

Add 21 to both sides

17x = 68

Divide by 17 both sides

X = 4

Answer:

B

Step-by-step explanation:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Answer:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Step-by-step explanation:

Answer:

Step-by-step explanation:

Xyla has all of her money to start so she has 1.

start by converting all fractions so they have a common denominator.

1/8 = 3/24

2/3 = 16/24

1/6 = 4/24

add these. it totals to

23/24

Now we subtract the whole: 1.

1 - 23/24 = 1/24

Xyla has 1/24 of her money left.

Answer:

1/24 of her money is remaining after the three purchases.

Step-by-step explanation:

To find what percentage of money Xyla has left, we must know what percent of her money she is spending. Our fractions are

1/8, 2/3, 1/6

to add these, we must find a common multiple between 8, 3, and 6. This would allow each denominator to be the same number.

A common multiple of the three is 24. Therefore, we multiply each fraction by the number that will allow the fractions to have a denominator of 24.

1/8*3=3/24

2/3*8=16/24

1/6*4=4/24

Then, we add the fractions:

3/24+16/24+4/24=23/24

Xyla has spend 23/24 of her money. Therefore, she has 1/24 of her money remaining.

Step-by-step explanation:

a

Yes it can, because −2.5 lies to the left of −0.5.

Answer: y = -13

Step-by-step explanation: Solve for y by simplifying both sides of the equation, then isolate the variable.

I hope this helps <3

Answer:

69.5

Step-by-step explanation:

A trapezoid's area is

\(\frac{b_1+b_2} {2} *h\).

We know base 1 and base 2.

115+105=220.

220/2=110.

110*h=7645

7645/110=h

h=69.5

Answer:

$51

Step-by-step explanation:

lets say 50, so 15% of 50 is 42.5 and + 20% for tip which is $51

Answer:

1,080 gallons of water pumped would take 54 minutes. 1 Minute= 20 gallons pumped

Answer:

Step-by-step explanation:

y = mx + b

0 = 300,10 + 240 =550  

Answer: 420

Step-by-step explanation:

You Answer is 3

Step-by-step explanation:

15 1/5 + 5 3/5 = 20 4/5

20 4/5 - 17 4/5 = 3

Answer:

18m-6

Step-by-step explanation:

Answer:

Step-by-step explanation:

We use a for Adult and s for Student.

Assuming this, you have to start by writing two equations from the information provided:

900 total tickets were sold    

       a+s=900                             ------(i)

they made $2,820 and  adult tickets cost $4 and kids tickets cost $2.50

      2820=4a+2.5s                    ------(ii)

lets solve for a in the first equation:

a=900-s                      

we can plug this into the second equation and solve for s

2820=4(900-s)+2.5s

2820=3600-4s+2.5s

2820=3600-1.5s

-780=-1.5s

s=520

we can plug this into the first equation and solve for a:

a+520=900

a=380

Total adult ticket sold : 380

Total student ticket sold = 520

Cost of adult tickets = 380 * 4 = $1520

Cost of student tickets = 520 * 2.5 = $1300

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