Brain Teaser! Will be posting till I run out! Winner gets a brainliest!

Question: Find the area of the red triangle.

Answer:

5c^2+2cd-2d^2-15

Step-by-step explanation:

Hello, to find the perimeter of any shape, you just add all the side together. In this picture, you would add all the sides up like this:

4c^2+4cd+12+-5d^2-5cd+2+c^2-d^2+1+3cd+4d^2-30

Then, combine like terms (add all of the numbers with the certain variable together) and you would get the answer which is:

5c^2+2cd-2d^2-15

Answer:

1/16

Step-by-step explanation:

Given the expression;

[tex]x^2+\dfrac{1}{2}x[/tex]

To find a constant that will make it a perfect square, we will use the square if the half of coefficient of x

Coefficient of x = 1/2

half of Coefficient of x = 1/2*(1/2)

Half of Coefficient of x = 1/4

square of the half of coefficient of x = (1/4)^2

square if the half of coefficient of x = 1/16

hence the constant that will make it a perfect square is 1/16

Answer:

65.30

Step-by-step explanation:

1. 50x4=200

2. 200x65=13,000

3. 13,000 + (15x4)

4. 15 x 4 = 60

5. 13,000 + 60

6. 13,060/200 = 65.3

Your average cost per racket including delivery charges is $65.30.

First step is to calculate the cost of 200 rackets

Cost of 200 rackets= 200 ×$65

Cost of 200 rackets= $13,000

Second step is to calculate the total delivery fee

Total Delivery fee= 15 × 4

Total Delivery fee=$60

Third step is to calculate the total cost including delivery cost

Total cost including delivery cost=$13,000 + $60

Total cost including delivery cos = $13,060

Fourth step is to calculate the Average cost

Average cost per rackets=$13,060/200

Average cost per rackets=$65.30

Inconclusion the average cost per racket including delivery charges is $65.30.

Learn more here:

https://brainly.com/question/11502325

Answer:

x+3

Step-by-step explanation:

Jose's x plus Marias 3

Answer:

2x + 3

Step-by-step explanation:

Jose = x dollars

Maria = x + 3 dollars

Add them altogether = x + x + 3 = 2x + 3

Answer:

(1) is the answer

hope it helps

Step-by-step explanation:

(1)

It's the first one. Hope this helps!!

Answer:

All are rational numbers

Step-by-step explanation:

irrational numbers can't be expressed as a fraction.

96 is an irrational numbers

Answer: Slope intercept form

Step-by-step explanation:

m=slope

b=y-intercept

Answer:

B = 12

Step-by-step explanation:

Give Brainllest plz

Answer:

Step-by-step explanation:

Answer:

x = 150

Step-by-step explanation:

(n-2)180       (n = the amount of sides)

(12 - 2)180

(10)180

1800

1800/12 = 150

Answer:

2) a) Neither; b) Adjacent; c) Vertical; d) Adjacent; e) Neither; f) Vertical

3) Vertical, x = 135

4) Adjacent, x = 57

5) Adjacent, c = 45

6) Adjacent, x = 118

7) Vertical, x = 47

8) Adjacent, x = 58

9) Adjacent, x = 9.67

10) Adjacent, x = 10

11) Vertical, x = 20

Step-by-step explanation:

Answer:

midpoint is (-15/2, -15/2)

Step-by-step explanation:

Finding the coordinates of the midpoint is easy.  All you have to do is find the average of the x-coordinates and the average of the y-coordinates of the endpoints of the segment.

So, in your case

(-8 - 7)/2 = -15/2 is the x-coordinate

(-7 - 8)/2 = -15/2 is the y-coordinate

Therefore, the midpoint is (-15/2, -15/2)

Answer:

(-7.5, -7.5)

Step-by-step explanation:

Remember that the formula is (x1+x2/2, y1+y2/2)

So, we know that -8 is x1 and -7 is y1. We also know that -7 is x2 and -8 is y2.

Lets plug this into our formula and see what we get.

(-8+-7/2, -7+-8/2)

Now lets find the x in the midpoint.

-8+-7/2 is equal to -15/2. This makes x equal to -7.5.

Now lets find the y in the midpoint.

-7+-8/2 is equal to -15/2 as well. This makes y equal to -7.5.

Now we can tell that the coordinates for midpoint will be:

(-7.5, -7.5)

MISCONCEPTIONS:

Always remember that midpoint is nothing like slope. The mid point is something you can point on a graph, wheareas slope is a function that can be lined on a graph.

The formulas for the two things are different as well. Slope is y/x, where you subtract the ys and xs from each other. In a way, midpoint is the exact opposite, which is adding the xs and ys together.

I hope this helps ;)

Good luck!

Answer:

39

Step-by-step explanation:

bc+5a

Substitute values

(4)(6) + 5(3)

= 24 + 15

= 39

Answer:

-1

Step-by-step explanation:

Answer:

1 = A

2 = F

3 = I think maybe B

Step-by-step explanation:

Hope that this helps you out! :)            

If you have any questions please put them in the comment section below this answer.            

Have a great rest of your day/night!            

Please thank me on my profile if this answer has helped you.

Answer:

7 cm

24.5 cm

0.4 cm

69.91 cm

Answer:

5

Step-by-step explanation:

not you deleting it

Answer:

Sorry, I can't help you with that :( I hope someone else can tho!

Step-by-step explanation:

Answer:

x = 10

Step-by-step explanation:

Answer:

A. When the team scored 52 points, the median number decreased.

Step-by-step explanation:

The median now is 88. Without the 52, (using the median formula,) it would become 88.5. Since 88.5 is larger than 88, it means the median decreased after 52 was added. There was no change when 91 was added.

Answer:

3:00

Step-by-step explanation:

If the minute hand is pointing straight up, it means that the time is at an exact hour (ex. 1:00, 2:00, not 1:30, etc.).

If the angle between the hour and the minute hand is 90 degrees, then we know that the time is either 3:00 or 9:00.

However, because the time must be between 1:00 and 5:30, it must be 3:00.

I hope this helps!

Answer:

256,800 I believe

Step-by-step explanation:

you add up all the numbers and multiply by 4

Answer:

XY i think

Step-by-step explanation:

Answer:

the answer is 8

Step-by-step explanation:

that is the answer "8"

Total saved from 22 drinks=22x$0.35

=$7.70

Original price of 22 sports drinks=$18.70+$7.70

=$26.40

Original price of one sports drink=$26.40÷22

=$1.20

The price of each drink is $1.20.

Answer:

300 students in total

Step-by-step explanation:

25% out of 300 is 75

300 - 75 (25%) = 225

25% (75) + 75% (225) = 100% (300)

Hopefully this helps :3 sorry if wrong :( plz mark brainiest if correct :D your bootiful/handsome! Have a great day luv <3

-Bee~

Answer:

300

Step-by-step explanation: