Can someone help me with 13,14,15 and 16 please

Answers

Answer 1

Answer: -3/5, 18/32, -10/11, and horizontal.

Step-by-step explanation: Remember the equation for slope? Δy (the change in y), over Δx (the change in x). In other words, rise over run. To solve for Δ, you'd have to subtract the second output (y²) from the first (y¹). There are really no rules as to which has to be minuend and the subtrahend, so I chose to subtract (-1,6) from (4,3) for the first problem.

y¹-y² Δy 3-6 -3

------ or ---- so ------- = ----- The slope is represented by -3/5x

x¹-x² Δx 4-(-1) 5

__________________________________________________________

For the second, substitute the values again (make sure you keep the xs and ys together and in the right order, otherwise your answer will be incorrect). Remember that subtracting a negative number is basically just adding a positive number. That's why the slope is 18/32 and not 4/26.

11-(-7) 18

--------- = -------

29-(-3) 32

___________________________________________________________

For number three, they give you a point, then tell you the y-intercept. With that in mind, also know the second point is (0,17), because the x value at the y-intercept is always 0.

7-17 -10

------ = ------- The slope is -10/11x

11-0 11

___________________________________________________________

4-4 0

------ = --------

6-(-9) 15

Because there is no Δy, but there is Δx, we know that the line for y will be straight and shows no change- it will always be at 4. That said, the line will be horizontal.

I hope this helps. I know this is very confusing at first, but with practice, you'll eventually get the hang of it. I've tried to explain the rules to the best of my ability- let me know if there's anything you don't understand or need more help with.

Sincerely,

Lacia :))

Related Questions

When you want to make a whole number a fraction, what number do you put as the denominator?

Answers

You would usually put 1 as the denominator.

For example :
6 is a whole number , & placing it as 6/1 does not change the value , but makes it as a fraction.

simplify the like terms 2x-5x

Answers

Answer:

-3x

General Formulas and Concepts:

Combining like terms

Step-by-step explanation:

Step 1: Write expression

2x - 5x

Step 2: Combine like terms (x)

-3x

A pound of ground beef costs $5. At this rate, what is the cost of 3/4 pounds?

Answers

Answer:

The answer would be $3.75

This can be easy if you take $5 and multiply it by 3/4 and you will get that answer!

I hope this helps :)

Step-by-step explanation:

Plz mark B R A I N L I E S T

$3.75 explanation: 5 would become 5/1 then you’d multiply 5/1 times 3/4 which equals 15/4 which would convert to 3 3/4 and 3/4 is .75 so it would be $3.75

Determine the type of triangle that is drawn below. PLZZ ASAP

Answers

Answer:

saclene obtuse

Step-by-step explanation:

sides all different and one angles is obtuse

The sum of 5% of a number and nine is 16

Answers

Answer:

This can be written algebraically as 5% ⋅ x + 9 = 16. If you want to solve for x, you’ll get x=140

Step-by-Step Explanation:

The attached picture is how to solve for x step-by-step.

Hope this helps and answers your question! :)

I will give barinlest im not playing im frfr

Answers

M=32•3
M=96
She ran 96 miles O. o
Hope they helps!

Answer:

M= 32 x 3

M= 96

Carly ran 96 miles

Step-by-step explanation:

May I have brainliest please? :)

please show your working out for (x+2)(x+4)=

Answers

Answer:

Step-by-step explanation:

(x+2)(x+4)

=x(x+4)+2(x+4)

=x²+4x+2x+8

=x²+6x+8

what is the midpoint

Answers

Answer: (-1,-3

the formula for midpoint is

((x+x)/2 , (y+y)/2)

=(-3+1)/2 , (-1+-5)/2
=-2/2 , -6/2
=-1,-3

Or you could just look at the graph and see that -1,-3 is where the exact middle of the line is

Please help will brainlist

Answers

Answer:

14-C

15-B

16-D

17-C

Step-by-step explanation:

.......

Help please? Will mark correct and first answer as brainliest!! : )

Answers

Answer:

It Is O. 8

Step-by-step explanation:

Because you are suppose to round the number to the one in front of the other number

83/100 83%

.......................

Please helppppp me Idk how to answer this

Answers

c. Plug in 0 into the equation
y = (0)^2 + 10
y = 10
It would be (0,10)

Ericka decided to compare her observation to the average annual trend, which shows the water rising 1.8 mm/year. Remember, she used 6.2 years as her time period

Explain how she would calculate the difference between how much water levels rose on average and how much the water level fell in the part of the river she observed.

Answers

Answer:

Sample response:

Step-by-step explanation:

She would multiply the rate by the years to find the average rise in water levels, or 1.8 times 6.2 = 11.16. To find the difference between the water levels, she would subtract -13.64 from 11.16.

Answer:

Step-by-step explanation:

She would multiply the rate by the years to find the average rise in water levels, or 1.8 times 6.2 = 11.16. To find the difference between the water levels, she would subtract -13.64 from 11.16.

what is 3x3+27+27+27?

Answers

3x3+27+27+27. The answer is 90!

Answer:

its 90

Step-by-step explanation:

Find the value of x so that f(x)=7.

Answers

Answer:

Step-by-step explanation:

At 7 on the y-axis, the x-axis is 5

17) Solve. 4 -2x = 10 A) -7 B) -3 0 D) 3

Answers

-3

Step-by-step explanation:

4 - 2x = 10

-4 -4

-2x = 6

÷ -2 ÷ -2

x = -3

Apples are on sale for $3.12 per kilogram is the total cost of apples proportional to the total mass?

Answers

Answer:

proportional

Step-by-step explanation:

Answer: Yes it is proportional

Step-by-step explanation:

Pick an lunch for every single day?

Answers

Answer:

The last one please.

I’m stuck between the chicken salad and the hamburger I’m probably leaning more towards the chicken salad because still has high protein and it’s healthy

2. How do you think the interaction between the
wind and the turbine blades result in electrical
energy? Explain your answer.

Answers

Answer:

Wind causes blade to move

Step-by-step explanation:

As blade moves, turbine work, and thus v get electricity from wind

Have a GOOD DAY.....

Which shape is similar to shape I? A. B. C. D.

Answers

the answer to your question is B!!
_____________
good luck on your assignment!! <3

E because it's in order

Identify the domain of the relation {(1,9), (2,5) (4, 6), (7, 1), (2,4)} .

Answers

The domain would be known as the list of the x which in this case would be listed as 1,2,4,7.

Which of the following represent(s) an equation of the line passing through the points A(5, 6) and B(4,8). Select all that apply.

Answers

Answer:

A, 6 and B, 4

Can you guys please help me step by step ?2(2x-1)=6(x+2)

Answers

Answer:

Step-by-step explanation:

2(2x-1)=6(x+2) PEDMAS

4x-2=6x+12 subtract 4x from both sides

-2=2x+12 subtract 12

-14=2x divide by 2

x= -7

Answer:

x = -7

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

2(2x - 1) = 6(x + 2)

Step 2: Solve for x

Distribute: 4x - 2 = 6x + 12Subtract 4x on both sides: -2 = 2x + 12Subtract 12 on both sides: -14 = 2xDivide 2 on both sides: -7 = xRewrite: x = -7

Step 3: Check

Plug in x to verify it's a solution.

Substitute: 2(2(-7) - 1) = 6(-7 + 2)Multiply: 2(-14 - 1) = 6(-7 + 2)Subtract/Add: 2(-15) = 6(-5)Multiply: -30 = -30

Here we see that -30 does indeed equal -30.

∴ x = -7 is a solution of the equation.

Dai is comparing how many trading cards he has with his friend Maura. Initially, they find that Dai has four more cards than twice the number that Maura has. Part B) If Dai must give Maura 8 cards so that they have the same amount, set up and solve an equation to determine the number of cards Maura initially had.

Answers

Answer:

Maura had 12 cards initially

Step-by-step explanation:

Represent Dai's card with D and Maura's card with M.

From the first statement, we understand that:

D = 4 more that twice of M

This is represented as:

D = 4 + 2M

From the second statement, we understand that.

When 8 is subtracted from D, M is increased by 8 and both are equal.

This is represented as:

D - 8 = M + 8

Hence, the equations of the system is:

D = 4 + 2M

D - 8 = M + 8

Substitute 4 + 2M for D in the second equation

4 + 2M - 8 = M + 8

Collect like terms

2M - M = 8 - 4 + 8

M = 12

To solve for D, we simply substitute 12 for M in D = 4 + 2M

D = 4 + 2 * 12

D = 4 + 24

D = 28

Hence, Maura had 12 cards initially

PLEASE HELP......rotate this image 90° counterclockwise and write the new coordinates for V’

Answers

Answer:

(1, 4)

Step-by-step explanation:

For people who are wanting to answer this question, just rotate this image three times to get the 90 degree counterclockwise image of the triangle : )

Determine triangle type

Answers

Answer:

isosceles acute

Step-by-step explanation:

two same sides so it is isosceles and all angles under 90 so acute

Answer:

isosceles acute

How many real solutions does the function shown on the graph have?
A. no real solutions
B. one real solution
C. two real solutions
D. cannot be determined

Answers

Answer:

no real equations

Step-by-step explanation:

the line isnt touching the x intercept line meaning there wouldn't be any equations to begin with

Alan compared the slope of the function y=3x+2 to the slope of the linear function that fits the values in this table. Which choice is true about the slopes of the two functions?

Answers

OPTIONS:

*The slope of the graph of the table is 1 more than the slope of the graph of the equation.

*The slope of the graph of the table is 2 more than the slope of the graph of the equation.

*The slope of the graph of the equation is 2 more than the slope of the graph of the table.

*The slope of the graph of the equation is 1 more than the slope of the graph of the table.

Answer:

The slope of the graph of the equation is 1 more than the slope of the graph of the table.

Step-by-step explanation:

The slope in the equation of the function, y = 3x + 2, is identified as 3.

We know this because, the equation for the function was given in the slope-intercept form, y = mx + b, where m represents the slope.

Therefore, the slope of the function is 3.

The slope of the function represented by the table of values can be calculated using any two given pairs on the table.

Using (1, 6) and (3, 10):

[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_2} = \frac{10 - 6}{3 - 1} = \frac{4}{2} = 2 [/tex]

Slope of the function represented by the table of values is 2.

Therefore, comparing the slope of both functions, we can conclude that:

✅"The slope of the graph of the equation is 1 more than the slope of the graph of the table."

Landon bought 4 pounds of walnuts for $10.92. What is the constant of proportionality that relates the cost in dollars, y, to the number of pounds of walnuts, x?

Answers

Step-by-step explanation:

The constant of proportionality is the ratio of the cost to the number of pounds of walnuts. In other words, it is the price of one pound of walnuts.

$10.92 / 4 lb = $2.73 / lb

The constant of proportionality that relates the cost in dollars, y, to the number of pounds of walnuts, x is $2.73 lb

What is constant of proportionality?

Firstly, there is proportional relationship.

Two values x and y are said to be in a proportional relationship if x=ky, where x and y are variables and k is a constant.

The constant k is called constant of proportionality.

The constant of proportionality can be calculated as the ratio of the cost to the number of pounds of walnuts.

x = number of walnuts

y = cost of walnutsin dollars

In other words, it is the price of one pound of walnuts now we have;

Constant of proportionality =$10.92 / 4 lb = $2.73 / lb

Learn more about directly inversely proportional relationship variable here:

https://brainly.com/question/13082482

#SPJ2

1) Find the perimeter of the following
polygon
8 ft.
5 ft.

Answers

The answer is 21 :), the side without any number is also 8 because the line in it shows it’s congruent to the line on the opposite side so 8+8+5=21

need answer, please help!!

Answers

The answer is 27root2 definately

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