Answer always, sometimes, or never.

A) The diagonals of a parallelogram are perpendicular

B) The diagonals of a kite bisect each other

C) A polygon is a quadrilateral

D) Thé diagonals of a rectangle are equal

E) Thé opposite angles of a parallelogram are equal

F) A rhombus is a rectangle

Answer:

1.) the y intercept is 490 and the slope is -2/3x2.) First, I would find the point (0,490) and plot a point there. Then I would use our slope -2/3 to figure out what direction and what angle the line goes by counting 2 down and 3 to the right3.) f(x)= -2/3x+490The graph represents how many wraps could've been sold for each number of sandwich sales to keep the same profit of $1,470.  4.) graph down below5.) the profits are the same (slope) but the y intercept is higher then the original graph.6.) y=-2/3x+300

Step-by-step explanation:

some of these are part of the problem as well.1.)  2x+3y=1,470  3y=-2x+1,470-2x+1,470/3-2/3x + 490y=-2/3x + 490the y intercept is 490 and the slope is -2/3x2.) First, I would find the point (0,490) and plot a point there. Then I would use our slope -2/3 to figure out what direction and what angle the line goes by counting 2 down and 3 to the right3.) f(x)= -2/3x+490The graph represents how many wraps could've been sold for each number of sandwich sales to keep the same profit of $1,470.  5.) 2x+3y=1,5933y=-2x+1,593y=-2/3x+531the profits are the same (slope) but the y intercept is higher then the original graph.6.) (150, 200) (300, 100)y intercept= 300m= 100-200/300-150 = -100/150 = -2/3y=-2/3x+300

Answer: less than

So you have:

-8n - 13 ≤ 27Now, solve for n:

-8n -13+13 ≤ 27 + 13-8n ≤ 40

Now, to divide both sides by a negative number (-8), you must change the inequality to ≥

-8n/-8 ≥ 40/-8n ≥ -5

Answer:

3/2

Step-by-step explanation:

When you look at the problem, it starts off with 6. Then it states 4. That makes 6/4. Now when you simplify that, you get 3/2 because you can take out 2 in the numerator and denominator. I'm not completely sure if this is right, it's honestly a guess...

Step-by-step explanation:

Answer:

x = 11, TV = 10

Step-by-step explanation:

set up as proportion and cross multiply to solve:

14/8 = 17.5/x-1

x = 11

then apply to TV to find TV:

x - 1

11 - 1

= 10

Answer: 126

Step-by-step explanation:

55% of student population is girls

if there are 154 girls then
0.55x = 154, where x represents school population

x=280

assuming the school only has boys and girls, anyone that's not a girl must be a boy, so

boys = 280 - 154 = 126.

if the school is not only boys and girls,

there will be 126 or less boys

Answer:

C

Step-by-step explanation:

3.806millions is

3.804*10^7

if we the add up the two populations it equals

6.41*10^7

Answer:

width: 13, length: 18

Step-by-step explanation:

13 + 13 + 18 + 18 = 62

18 - 13 = 5

Answer:

There are no factors of 3 that add up to -15

Step-by-step explanation:

the only factors of 3 is, 1 and 3.

im sorry i do not know but heres a tip, if u want people to answer quick put a lotta points. they go crazy

Answer: number 1 is wrong number 2 is I think 4

number 4 is one-twelfth i think and number 3 is 2 i believe

Step-by-step explanation: sorry if I am wrong i'm in middle school

Answer:

8

Its 8 because if you subtract 11-8 you get -3.

Answer:

person above is wrong the correct answer is 3 on Khan academy

Step-by-step explanation:

I need Exactly 1 more brainliest to level up!

Answer:

399.28 i know this is wrong so dont use it :)

Step-by-step explanation

I dont know for sure but if you have 400 employees 72% of them are half time then you will change to % to a decimal which is .72 and then you will do 400-.72=399.28

The coefficients of the linear relation are:

A general linear equation is given by:

y = a*x + b

Where a is the slope (also called the rate of change) and b is the y-intercept (also called the initial value).

If we know that the line passes through two points (x₁, y₁) and (x₂, y₂), then the slope is given by:

[tex]a = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Here we will use only need the first two pairs from the table (you can use any two you want).

(0, 5)

(5, 11.25)

From the first one, you can see that when x = 0, y = 5.

Replacing that in the general linear equation we get:

5 = a*0 + b

5 = b

So we already know the initial value. Now we can use these two points to get the slope (rate of change).

[tex]a = \frac{11.25 - 5}{5 - 0} = 1.25[/tex]

Then we can conclude:

If you want to learn more about linear equations, you can read:

https://brainly.com/question/4074386

Answer:

Step-by-step explanation:

Answer/Step-by-step explanation:

11/2z+9/5=1.8+12z-6.5z

We move all terms to the left:

11/2z+9/5-(1.8+12z-6.5z)=0

Domain of the equation: 2z!=0

z!=0/2

z!=0

z∈R

We add all the numbers together, and all the variables

11/2z-(5.5z+1.8)+9/5=0

We get rid of parentheses

11/2z-5.5z-1.8+9/5=0

We calculate fractions

There is no solution for this equation

Answer:

$879.76575 --> $880

Step-by-step explanation:

$808.98 × 0.0875 = $70.78575 <-- this represents the additional sales tax

$808.98 + $70.78575 = $879.76575 <-- add sales tax to original price

Answer:

$39.60

Step-by-step explanation:

calculator.

Answer:

39.60

Step-by-step explanation:

Just subtract 20 . 25 and 25.75 over 85.60

if it crosses the y-axis as -12, that means that's its y-intercept, and we know its slope.

[tex]\begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}~~ \implies ~~y=\stackrel{\stackrel{m}{\downarrow }}{5}x\underset{\underset{b}{\uparrow }}{-12}[/tex]

Answer:

5/3x - 9

Step-by-step explanation:

Y = mx + b is the slope intercept form of a line where m is the slope and b is the y intercept.

Convert to slope intercept :

y = 5/3x-9

Hope this helps, please mark brainliest if possible :D

Answer:

y= 5/3 - 9

Step-by-step explanation:

5x-3y=27

-5x       -5x

-3y= -5x+27

divide all numbers by -3

Answer:

A. 9.5s + 19.95 ≤ 55

Step-by-step explanation:

The total must be less than or equal to the amount you have.

Answer: A. 9.5s + 19.95 ≤ 55 !!

Step-by-step explanation: I took the quiz <3 look at the attached images for answers! ^^

Answer: 1) theater b- $4 per ticket theater c- $8 per ticket 2) small- $0.30 per oz. medium- $0.25 per oz. large- $0.20 per oz. 3) store a- $16 per shirt store b- $6 per shirt store c- $4 per shirt 4) can- $0.05 per oz. bottle- $0.09 per oz. cup- $0.10 per oz. 5) laundromat a - $2 per load laundromat b- 3$ per load laundromat c- $3 per load 6) tide- $0.19per load gain- $0.21 per load purex- $0.17 per load 7)McDonald's- $1.19 per burger Wendy's- $2.99 per burger Burger King- $1.05 per burger 8) McDonald's- $0.30 per oz. Wendy's- $0.46 per oz. Burger King- $0.25 per oz.

Step-by-step explanation:

To find the answers all you need to do is dive the total cost by the number of items.

alright then, 12x + 17 = 66! we started with 17 and there is twelve months with x amount of inches grown plus the already 17 that equals the total 66

so it is 12x + 17 = 66

Answer:

B. 12x + 17 = 66

Step-by-step explanation:

[tex]{.}[/tex]

Step-by-step explanation:

Use Multiplication Principle with states that if a event can occur n ways, and another mutually exclusive event occur p ways, then the total outcome is

[tex]n \times p[/tex]

The possible ways of rolling a dice is 6 and the possible ways of flipping a coin is 2 so we have

[tex]6 \times 2 = 12[/tex]

Now, we use the fact that proabliblity is

Number of favorable outcomes/ Total outcomes.

We can only get a head and a 5 once out of the set so the number of favorable outcomes is 1. Total outcomes is 12 so we have

[tex] \frac{1}{12} [/tex]

A is the answer.

The costs were $2.50 each and received a $2.00 discount on his total bill. If he paid $10.50

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Given

2.5x - 2 = 10.5 is a linear equation.

The number of books.

2.5x - 2 = 10.5 is a linear equation.

On simplifying, we get

2.5x - 2 = 10.5

     2.5x = 12.5

           x = 5

The number of books is 5.

Thus, the costs were $2.50 each and received a $2.00 discount on his total bill. If he paid $10.50.

More about the linear system link is given below.

https://brainly.com/question/20379472

Answer:

Will bought several books that cost $2.50 each and received a $2.00 discount on his total bill. If he paid $10.50, how many books did he buy?

Step-by-step explanation:

Supper late but here is the answer.

Have a good day :)

Answer:

The equation is [tex]t = \frac{8}{6 - r}[/tex]

Step-by-step explanation:

First off, we know r is going to be subtracted from 6 somewhere in the expression since the problem says "decreasing by r miles per hour."

If we want to see how long it would take him to jog 8 miles up to the mountain road we would have to take 8 and divide it by 6 - r.

Therefore, the equation is [tex]t = \frac{8}{6 - r}[/tex]

Hope this helps, please mark brainliest if possible and give good ratings thanks :)

Answer:

  see attached

Step-by-step explanation:

Angles are normally positive measured counterclockwise from the +x axis. An angle of -90° is an angle 90° clockwise. The rotation will map 1st, 3rd, and 4th-quadrant points to the 4th, 2nd, and 3rd quadrants, respectively.

The square in the figure is centered on the (presumed) rotation center, so rotating it 90° does not change its appearance.