Mathematics College

help
i dont understand this.

Answers

Answer 1

Answer:

Step-by-step explanation:

Answer 2

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

let's find the slope of the line :

that is :

[tex] \dfrac{y2 - y1}{x2 - x1}[/tex]

taking two points (0 , 4) and (2 , -4)

[tex] \dfrac{4 - ( - 4)}{0 - 2} [/tex]

[tex] \dfrac{8}{ - 2} [/tex]

[tex] - 4[/tex]

Slope (m) of the graph = -4

and y - intercept (c) = 4

therefore, the equation will be :

[tex]y = mx + c[/tex]

[tex]y = - 4x + 4[/tex]

Related Questions

What is 3/7÷2/7

Also 3/4÷5/6

Answers

Answer:

3/7 ÷ 2/7 = 3/2

3/4÷5/6 = 9/10

Step-by-step explanation:

The key rule to understanding how to divide fractions is...

KEEP SWITCH FLIP!!!

Basically, you keep the first fraction, switch the sign from division to multiplication, and flip the other fraction...

Here's how you would go about this:

3/7÷2/7

Keep 3/7 and switch ÷ to multiplication

3/7 · 2/7

Now flip 2/7 so it becomes 7/2

3/7 · 7/2

Now multiply across!

3 · 7 = 21

7 · 2 = 14

You get 21/14...but don't forget to simplify!! Divide 21 and 14 by 7 to get 3/2!

And now...for 3/4 ÷ 5/6, you do the exact same thing!

Keep...3/4

Switch... ÷

Flip...5/6

And you should get:

3/4 · 6/5

Multiply across...

= 18/20

Simplify!

= 9/10

I hope this helps clarify any confusion you may have had!

Answer:

1 1/2 and 5/8

Step-by-step explanation:

problem 1

3/7 divided by 2/7

flip 2nd fraction then multiply is formula

so 3/7 times 7/2 which is 21/14 which is 1 7/14 simplify to 1 1/2

so 3/4 times 5/6 remeber formula

3/4 times 6/5

18/20 multiply numerators and denominators

you could also answer as 0.9

1. Suzette ran and biked for a total of 34 mi in 3.5 h. Her average running speed was 6 mph and her average biking speed was 12.5 mph. Let x = total hours Suzette ran. Let y = total hours Suzette biked. Use substitution to solve for x and y. Show your work. Check your solution. (a) How many hours did Suzette run? (b) How many hours did she bike? Answer:

Answers

Answer:

answer

First we need to write system of 2 equations with 2 variables:

x*6 + y*12.5 = 34

x+y = 3.5

for substitution we express one of variables in one of equations and put it in other equation.

x = 3.5-y

(3.5 - y)*6 + 12.5*y = 34

21 - 6y + 12.5y = 34

6.5y = 13

y = 2

x = 3.5 - y = 3.5 - 2 = 1.5

she ran for 1.5 hours and biked for 2 hours.

check:

1.5*6 + 2*12.5 = 9 + 25 = 34 = 34

You have a bag filled with different colored poker chips. In the bag, there are 5 red chips, 16 grey
chips, 4, black chips, 7 blue chips, and 13 green chips. What is the ratio of the number of total chips to
the number of red AND blue chips

Answers

Answer:

45:12

Step-by-step explanation:

5 + 16 + 4 + 7 + 13 = 45

5 (red) + 7 (blue) = 12

-4x - (4 - 3x) + x - 9

Answers

Answer:

Step-by-step explanation:

-4x-4+3x+x-9 distributive property

combine like terms which would delete x, so the answer would be 5

1. Which of the following should you do first when solving the equation 3x + 2 = 4x – 5(x + 6)?
A. divide both sides by 3
B. subtract 2 from both sides
C. distribute the - 5 through the parenthesis (x+6)
D. subtract 4x from both sides

Answers

Answer:

(x+6)

Step-by-step explanation: remember gemdas

Groups

Exponents

Multipy

Divide

Add

Ssubtract

Solve for x

(8x-29)+(3x-1)+(6x-11)=180

Answers

Answer:

x= 13

Step-by-step explanation:

can i please get branlist? if not thats okay.

X equals 13!!!! :))

Simplifying
8x + -29 + 6x + -11 + 3x + -1 = 180

Reorder the terms:
-29 + -11 + -1 + 8x + 6x + 3x = 180

Combine like terms: -29 + -11 = -40
-40 + -1 + 8x + 6x + 3x = 180

Combine like terms: -40 + -1 = -41
-41 + 8x + 6x + 3x = 180

Combine like terms: 8x + 6x = 14x
-41 + 14x + 3x = 180

Combine like terms: 14x + 3x = 17x
-41 + 17x = 180

Solving
-41 + 17x = 180

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '41' to each side of the equation.
-41 + 41 + 17x = 180 + 41

Combine like terms: -41 + 41 = 0
0 + 17x = 180 + 41
17x = 180 + 41

Combine like terms: 180 + 41 = 221
17x = 221

Divide each side by '17'.
x = 13

Simplifying
x = 13

Determine if the following system of equations has no solutions, infinitely many
solutions or exactly one solution.
x + y = 2
–5x - 5y = -10

Answers

Step-by-step explanation:

The usual thing to do is to try to get rid of one variable first. So to get rid of x, we multiply the first equation by 5.

5(x + y) = 2(5)

-5x - 5y = -10

---> 5x + 5y = 10

-5x - 5y = -10

---> 0 = 0

As you can see, everything cancels out. If the statement is true, then it is infinitely many solutions.

PLEASE HELP ITS MATH THANK YOUUUU

Answers

1millimeter = 1cm I think

I need help asaapppp

Answers

32 divided by 7 is 4.57

10. The graph of linear equations in two variables is a
A. Straight line
B. curve line
D. half line
C. broken line

Answers

I believe it would be a straight line!

Here is a Venn diagram that represents the sets A, B and E (the universal set is called
Ein this
problem, this is unusual, but not wrong).

Answers

Answer:

i don't know how to answer this

Answer:

there is no diagram so, it is not possible to solve this

find the value of x and y
will give brainiest

Answers

Answer:

[tex]2x + 7 = 3x - 7 \\ 3x - 2x = 7 + 7 = 14 \\ x = 14 \\ 2x + 7 + 12y + 1 = 180 \\ 12y + 36 = 180 \\ 12y = 180 - 36 = 144 \\ y = 144 \div 12 = 12[/tex]

Tia went to the Farmers
Market and bought 6
pineapples for $3.49
each. How much money did
Tia spend?

Answers

Answer:

20.94$

Step-by-step explanation:

3.49x6 since Tia bought 6 pineapples and they cost 3.49 each and it equals 20.94$. So to buy 6 pineapples at the farmers market it cost 20.94$.

Which of the following are possible
side lengths for a triangle?
A. 9, 4,8
B. 14, 7,6
C. 3, 8, 1

Answers

a is your answer to the question that you are asking

The only set of side lengths that can form a triangle is 9, 4, 8.

Option A is the correct answer.

What is a triangle?

A triangle is a 2-D figure with three sides and three angles.

The sum of the angles is 180 degrees.

We can have an obtuse triangle, an acute triangle, or a right triangle.

We have,

In a triangle, the sum of the lengths of any two sides must be greater than the length of the third side.

Let's check if each of the given sets of side lengths satisfies this condition:

9, 4, 8

9 + 4 > 8 ✓

9 + 8 > 4 ✓

4 + 8 > 9 ✓

All three inequalities are true, so these side lengths can form a triangle.

14, 7, 6

14 + 7 > 6 ✓

14 + 6 > 7 ✓

7 + 6 > 14 ✗

The last inequality is false, so these side lengths cannot form a triangle.

3, 8, 1

3 + 8 > 1 ✓

3 + 1 > 8 ✗

8 + 1 > 3 ✓

The second inequality is false, so these side lengths cannot form a triangle.

Therefore,

The only set of side lengths that can form a triangle is A. 9, 4, 8.

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ2

Given that (1,-8) is on the graph of f(x), find the
corresponding point for the function
1
f(x).
2
Enter the correct answer.
DOHO
DONE
Clear all
#OO

Answers

Answer:The graph of y = f(x-2) is the graph of y = f(x) translated two units rightward.

So, since the point (9,2) lies on the graph of y = f(x), the point (11,2) lies on the graph of y = f(x-2).

Step-by-step explanation:

Which expression has a solution of 54, if t = 6? 7 t 9 t 6 t 8 t

Answers

Answer:

The answer is 9

Step-by-step explanation:

Cause when we multiplied 6 to 9 the answer will be 54

Which of these is the smallest number?
A. 1 1/2 ( one and one over two)

B. 1/3

C. 1 1/10 (one and one over ten)

D. 1/4

E. 1/2

Answers

Answer:

B this is the smallest number

Ansie bought 2 bags with 10 bows and 3
bags with 14 bows. She used 23 of the
bows on graduation gifts she wrapped.
Write an equation can be used to solve for
b, the number of bows Ansie has left?

Answers

10 bows + 14 bows= 24 bows.

24-23= 1

Ansie has 1 bow left.

f(x) = x² + 2ax + a² - a
g(x) = 4 - x²

Let variable a be a real number. Find the range of values of a such that the equation f(x) = g(x) has two different solutions.

***The answer should be -2 < a < 4, but I don't know why.

Answers

Step-by-step explanation:

f(x) = x² + 2ax + a² - a

g(x) = 4 - x²

f(x) = g(x)

x² + 2ax + a² - a = 4 - x²

2x²+2ax+a²-a -4 =0

the equation has two different solutions

=> (2a)² - 4(2)(a²-a-4) > 0

4a²-8a²+8a +32 >0

-4a²+8a+32 > 0

a²-2a-8 >0

(a-4)(a+2) < 0

the answer should be

-2 < a < 4

Whats 4+4+(6x168) and the answer in Spanish

Answers

It’s he alive in the bath it’s not

It's 1016, which in spanish would be: mil dieciséis.

I am stuck, please help

Answers

Answer:

2323

Step-by-step explanation:

Mental math means to find a way to do this problem in your head without using paper, pencil or a calculator.

The question says there are 23 classes and each class is to collect 101 items.

The equation would be 23 x 101.

To do this in your head real quick, make the numbers easier to multiply.

Make the 101 items 100. That means you are telling each class to collect 1 less item or 23 less items total.

You can do this in your head real quick. 23 classes collecting 100 items is 2300 items.

You had each class collect 100 items instead of 101. That mean you didn't collect 23 items. So if you add those back in, you will get

2323 items.

What is a general rule for simplifying expressions like x^a .x^b? where does this rule
comes from

Answers

So, x^a*x^b would simplify to x^(a+b)

As for the proof of this,
Given that addition, subtraction, multiplication, and division are already known and don’t need to be proved, we know:

x^a = x*x*x… (a times)
x^b = x*x*x… (b times)

If we were to multiply these two expressions together, we’d simply get:

x^a*x^b = x*x*x… (a+b times)

And thus, that is why

x^a*x^b = x^(a+b)

I have 2 cupcakes but Jake has 7/4 as many as I do

Answers

jake would have 3.5 (3 and a half cupcakes)

you would do your amount of cupcakes multipled by 7/4 which gets you 3.5!

Suppose that the relation T is defined as follows.
T={(2, 2), (1, -7), (-5, 3), (3, 0)}
Give the domain and range of T.
Write your answers using set notation.

domain =

range =

Answers

The domain is all of the x values which are the first number in each set of parentheses and the range is all of the y values therefore domain = {2, 1, 5, 3} and range= {2, -7, 3, 0}

21. You place a mat around a 25 in by 21 inch painting as shown. The mat
is twice as wide at the left and right of the painting as it is at the top an
bottom of the painting. The area of the mat is 714 square iinches (note:
the area of the border). How wide is the mat at the left and right of the
painting? At the top and bottom of the painting? (P.264 #66)

Answers

Using a quadratic equation according to the area of the rectangular mat, it is found that:

At the top and bottom of the painting, the width is 0.654 inches.At the left and right of the painting, the width is of 1.308 inches.

The area of a rectangle of length l and width w is given by:

[tex]A = lw[/tex]

In this problem:

The length of the figure is of [tex]l = 25 + 4x[/tex].The width of the figure is of [tex]w = 21 + 2x[/tex].Area of 714 square inches, thus:

[tex]lw = 714[/tex]

[tex](25 + 4x)(21 + 2x) = 714[/tex]

[tex]8x^2 + 134x + 525 = 714[/tex]

[tex]8x^2 + 134x - 189 = 0[/tex]

Which is a quadratic equation with [tex]a = 8, b = 134, c = -189[/tex].

The, to find the widths of the mat, we have to first find the value of x, solving the quadratic equation.

[tex]\Delta = 134^2 - 4(8)(-189) = 24004 [/tex]

[tex]x_{1} = \frac{-134 + \sqrt{24004}}{2(8)} = 0.654[/tex]

[tex]x_{2} = \frac{-134 - \sqrt{24004}}{2(8)} = -9.03[/tex]

We are interest in the positive value of x, so x = 0.654.

At the top and bottom of the painting, the width is of 0.654 inches.

[tex]2(0.654) = 1.308[/tex]

At the left and right of the painting, the width is of 1.308 inches.

A similar problem is given at https://brainly.com/question/14099239

11 4/5 + 3 5/6 and you have to add

Answers

Answer:

15 19/30

Step-by-step explanation:

Fraction: 15 19/30 decimal: 15.633333

find the slope of (-1,3) and (-5,7)

Answers

Answer:

-4/4 = -1

Step-by-step explanation:

yeah-ya...... right?

Joan wants to make a dinner plan for next week.. How many different arrangements are there for the 7 d a y s ?

Answers

The number of arrangements is an illustration of permutations.

The number of arrangement is 5040

The given parameter is:

[tex]n = 7[/tex] --- number of days

[tex]r = 7[/tex] --dinners for 7 days

So, the number of different arrangement is

[tex]^nP_r = \frac{n!}{(n - r)!}[/tex]

Substitute known values

[tex]^7P_7 = \frac{7!}{(7 - 7)!}[/tex]

[tex]^7P_7 = \frac{7!}{0!}[/tex]

[tex]^7P_7 = \frac{5040}{1}[/tex]

[tex]^7P_7 = 5040[/tex]

Hence, the number of arrangement is 5040

Answers

Step-by-step explanation:

this is the answer

please follow me and mark me as a brainlist

In the graph below, what are all values of x
for which y = 0?
02
4
00
MA
plss hurry

Answers

The answer is positive 4

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help i dont understand this.

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help
i dont understand this.