What will be the new position of the point (−8, 4) when rotated through 90° anti-
clockwise about the origin?
i. (−4, −8)
ii. (−4, 8)
iii. (4, 8)
iv. (2, 4)

Answer:

[tex]( {x}^{2} + 16x + 64) - (x + 8)(x - 4) = k(x + 8) \\ ( {x + 8)}^{2} - (x + 8)(x - 4) = k(x + 8) \\ (x + 8) - (x - 4) = k \\ k = (x - x) + (8 + 4) \\ k = 12[/tex]

Answer:

Step-by-step explanation:

a² + 2ab + b² = (a + b)²

2ab = 2 * x * 8 = 16x

x²  + 16x + 64 = x² + 2* x * 8 + 8²  

                      = (x + 8)²

x² + 16x + 8 - (x +8)(x - 4) = (x+8)² - (x+ 8) (x -4)

                                        = (x +8)(x +8) - (x + 8)(x - 4)

(x +8 ) is common in both terms

                                        = (x + 8) [ (x + 8) - (x - 4) ]

                                        = (x + 8) [ x + 8 - x + 4 ]  

{Combine like terms. so x + (-x ) = 0   and 8 +4 = 12}

                                         = (x + 8) [ 12]

k = 12

Answer:

Hope this helps

Step-by-step explanation:

a) <e and <c

b) <c and <b

c) <c and <a

d) <c and <b,  <c and <d, <d and <e, <e and <a, <a and <b

e) c = 30, a = 90, b= 60, e= 30, d= 150

Answer:

What was the answer you put wrote?

Step-by-step explanation:

Answer:

2625 cubic meters

Step-by-step explanation:

the volume of a rectangle is V = length x width x height (depth in this case)

so, 50m x 30m x 1.75m = 2625m^3

Answer:

5. D  6. B  7. A

Step-by-step explanation:

it is just like a square all sides are the same

Answer:

a

Step-by-step explanation:

20-9=11

Answer:

A) h<11

Step-by-step explanation:

20 - 9 = 11

Answer:

width=x^2-3

Step-by-step explanation:

I think sorry if im wrong

Answer: on paper

Step-by-step explanation:

Answer:

See the picture I included :D

PLease give me brainliest if I helped!

Answer:

-17

Step-by-step explanation:

1) rewrite: (3 - n) divided by 2 = 10

2) Multiply both sides: (3-n)/ 2 = 10

3) move constant to the right: 3 - n = 20

4) calculate: -n = 20 - 3 then, -n = 17

5) change signs: n = -17

Hope this helped and wasn’t confusing, good luck! :)

Answer:

3.5325

Step-by-step explanation:

find the area and divide it by 2

1.5*1.5*pi= 1.5*1.5*3.14= 7.065

then divide it by two= 3.5325

Answer:

1. Mean: 103

2. Median: 8

3. Mean would increase.

Step-by-step explanation:

1. 82+85+89+94+98+103+105+108+112+115+119+126 = 1,236

Then, 1,236/ 12 = 103

Therefore, our answer!

2. Put the numbers in order from least to greatest:

1, 6, 7, 8, 9, 11, 16

Cross out one on each side until you get to the middle.

3. Add up all original numbers to get a mean of: 2.7 and then add up all the numbers including six to get a mean of: 3.2 As you can see, the mean increased.

Hope this helps, good luck! :)

The Mean is 103 ,Median is 8 and Mean would increase

What is mean and median?

The mean (informally, the “average“) is found by adding all of the numbers together and dividing by the number of items in the set.

The median is found by ordering the set from lowest to highest and finding the exact middle. The median is just the middle number.

according to the question,

1. 82+85+89+94+98+103+105+108+112+115+119+126 = 1236

Then, 1236/ 12 = 103

Therefore, our answer

2. Put the numbers in order from least to greatest:

1, 6, 7, 8, 9, 11, 16

Cross out one on each side until you get to the middle.

Median is 8

3. Add up all original numbers to get a mean of: 2.7 and then add up all the numbers including six to get a mean of: 3.2 As you can see, the mean increased.

To learn more about mean and median from here

https://brainly.in/question/2401311

#SPJ2

Values if order of longest to shortest.

Answer:

When arranged from lowest to highest, the IQR describes the median 50% of values. The IQR is the difference between the third and first quarters.

Step-by-step explanation:

Its not letting me come to for some reason so I’m doing this on answers

But I think u need a little more info for someone to answer this maybe a picture would help

Answer:

2.4m

Step-by-step explanation:

It is also 2.4m but just sloped

Answer:

A. 12n - 6

Step-by-step explanation:

12 times a number which is n so

12n then minus 6 ,

12n-6

hope this helps

Answer:

500

Step-by-step explanation:

Take the cost per night and multiply by the number of nights

125*4 =500

Answer:

its 3000 and the other one is 2000

Step-by-step explanation:

Answer:

c=70 degree(being vertically opposite angle)

Step-by-step explanation:

Answer:

C is 70

Step-by-step explanation:

Beacuse if you look at the other side they both are the same so 70 degrees on one side should be equal to 70 on the other side

Please give brainlist

Answer: Choice B

(3+4) + 2 = 3 + (4+2)

=========================================

Explanation:

The general rule for the associative property of addition is

(a+b)+c = a+(b+c)

the a,b,c stay in the same order from left to right. The only thing that changes is the way we group the pair of terms. On the left side, we have a & b together with c left out. Then on the right side, we have b & c together with 'a' excluded.

Addition of any group of numbers can be done in any order, which is why this property is valid (though perhaps there's a more rigorous proof out there). For this specific problem, a = 3, b = 4, and c = 2.

Answer: I think the answer to your question is option B.

Answer:

-3

Step-by-step explanation:

It would just be -12+9=-3.

Answer:

6 feet 1 inches in cm =

185.42 cm