please help me, maths is hard, and at the moment i wish maths wasn't real. brainliest will be given

Answer:

The answer is (2x-1)(2x+1)

Step-by-step explanation:

4x²-1 can be factorised using difference if two squares

Answer:

The answer would be x^2+4x+3

Step-by-step explanation:

Answer:

A. x^2+4x+3!!!

just took it on edg!

Answer:

The side length is 8x+2 ft

Step-by-step explanation:

The perimeter of a square is found by

P =4s  where s is the side length

32x +8 = 4s

Divide each side by 4

32x/4 +8/4 = 4s/4

8x+2 = s

The side length is 8x+2 ft

Answer:

the equation is not shown...

Step-by-step explanation:

but to solve for y you should use the first equation that is use the coefficient of x in the first equation to multiply all the terms in the second equation.

And use the coeffient of x in the second equation to multiply the the terms in the first equation.

It would have been better if the equation was shown for better explanation.

Answer & Step-by-step explanation:

When you are doing the reflection, y = -x, then the coordinates will go as follow...

(x, y) → (-y, -x)

So, (3, 5) will become (-5, -3).

So, the coordinate of F' would be (-5, -3)

Answer:

56

Step-by-step explanation:

so a straight line has an angle that is 180 degrees

the angle on both sides of X are 64 and 60

so add those up u get 124

get the whole angle of 180 and subtract 124 and u get 56

Answer:

Step-by-step explanation:

because A regular octagon is a closed figure with sides of the same length and internal angles of the same size. so if it is rotated 360 degrees it should coincide with its preimage after every 45 degrees.

so 360/45= 8 times

Answer:

8 times

Step-by-step explanation:

An octagon has eight sides of equal length and eight angles of same measure. So, If it is rotated 360 degrees about its center. It would coincide with all of its 8 sides. So, it will coincide with it's pre-image 8 times.

Answer:

Step-by-step explanation:

Hope it helped

Answer:

√65 (units)

Step-by-step explanation:

A(3, -2) and B(7, 5)

AB=√ [(xB-xA)²+(yB-yA)²]

AB=√ [(7-3)²+(5+2)²]=√(16+49)

AB=√65 (units)

Answer:

1. When adding you just add the numbers from the same space so

3  7

10 45

2. Same as adding but the opposite

2  1  2

3  1  6

1  2  1

Step-by-step explanation:

[tex]answer =12 \: yards \\ solution \\ hypotenuse(h) = 13 \: yards \\ perpendicular(p) = 5 \: yards \\ base(b) = ?\\ using \: pythagorus \: theorem \\ {h}^{2} = {p}^{2} + {b}^{2} \\ {b}^{2} = {h}^{2} - {p}^{2} \\ {b}^{2} = {13}^{2} - {5}^{2} \\ {b}^{2} = 169 - 25 \\ {b}^{2} = 144 \\ b = \sqrt{144 } \\ b = \sqrt{ {12}^{2} } \\ b = 12 \\ hope \: it \: helps \\ good \: luck \: on \: your \: assignment[/tex]

Answer:

Step-by-step explanation:

Use Pythagorean theorem

let the missing side be x

5² +x² = 13²

25 + x² = 169

x² = 169 - 25

x² = 144

x =√144

x = 12 yards

Answer:

g(x) = (x - 2)^3 - 4

Step-by-step explanation:

first, the function f is shifted to the right by 2 units and then shifted up by 4 units

Answer:

x^2+8

Step-by-step explanation:

x+1*x+7

Answer:

x = 120

Step-by-step explanation:

10.25x + 680 = 12.5x +410.

Subtract 10.25x from each side

10.25x-10.25x + 680 = 12.5x-10.25x +410.

680 = 2.25x +410

Subtract 410 from each side

680-410 = 2.25x +410-410

270 = 2.25x

Divide each side by 2.25

270/2.25 =2.25x/2.25

120=x

Answer: The equation would NOT help us solve for the length and width of the classroom is "[tex]x + 2y = 90[/tex]".

Step-by-step explanation:

Let y be the width of the rectangular classroom floor and x be the length of the rectangular classroom floor .

Given ,

The perimeter of a rectangular classroom floor is 90 feet.

The length of the floor is twice the  width.

i.e. Length =2 (width)

i.e. x= 2y ..(i)

Also, perimeter = 2(length+width)

[tex]i.e. 2(x+y)=90\\\\\Rightarrow\ 2x+2y=90[/tex]

When we put value of x from (i), we get

[tex]2(2y) + 2y = 90[/tex]

Hence, the equation would NOT help us solve for the length and width of the classroom is "[tex]x + 2y = 90[/tex]".

Answer:

PLEASE APPRECIATE IT

Step-by-step explanation:

129

Answer:

A= 1/2bh

Step-by-step explanation:

The answer is the Area= 1/2 * base * height

Answer:

[tex](x + 2)[/tex]

Answer B is correct

Step-by-step explanation:

[tex] {x}^{2} - 3x - 10 \\ {x}^{2} - 5x + 2x - 10 \\ x(x - 5) + 2(x - 5) \\ = (x +2 ) (x - 5)[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

3/11

Step-by-step explanation:

There are 11 letters in "hippopotami" and 3 of those letters are P, so the fraction of letters that are p is 3/11. Fractions are part of the whole and the part here is 3.

Answer:

3.3333333333333333333333

Answer:

                          Cat owner           Dog owner           Total

Wet food                    9                         13                    22

Dry food                    10                        14                     24

Total                          19                        27                     46

Step-by-step explanation:

It is given that 9 cat owners and 13 dog owners chose "Wet food". 10 cat owners and 14 dog owners chose "Dry food".

Cat owners-Wet food = 9

Dog owners-Wet food =13

Cat owners-Dry food = 10

Dog owners-Dry food =14

We need to construct a two-way frequency table for the data.

Take owners in the first row and type of food in first column and construct a two-way frequency as shown below:

                          Cat owner           Dog owner           Total

Wet food                    9                         13                    22

Dry food                    10                        14                     24

Total                          19                        27                     46

Answer:

The answer is c

Step-by-step explanation:

Answer:

the answer is c

Answer:

side of square is 2-x

Step-by-step explanation:

Area of the square is side * side  or side ², so the expression for the side has to be square root of area

A = 4 -4x + x²

It should be recognized that 4 -4x + x²is a special product ( 2-x)² because this is a perfect square trinomial

side of square is 2-x

Answer: The answer is 8000 pounds, or 4 tons

Step-by-step explanation:

This is true because each tree makes about 250 pounds of oxygen. She counted 32 so.....

(32)(250)=8000

then convert 8000 pounds to tons and you get 4 tons

Answer:

[tex]0.416667[/tex] of a day

Step-by-step explanation:

To get minutes to days you divide the minutes by the amount of minutes in a day which is 1440

[tex]\frac{600}{1440} \\0.416667[/tex]

Answer:

0.417 day

Step-by-step explanation:

First divide 600 by 60 the answer is 10 hours and then divide by 24 the answer would be 0.41666667 days

Hi there!

Answer:

1/6

Explanation:

The first probability of getting blue is 4 out of the total marbles so 4/9.

The second time there are only 3 blue marbles out of 8 now so 3/8.

So the answer is 4/9X3/8

which equals 12/72 or 1/6

Hope this helps!

Answer:

No solutions

Step-by-step explanation:

x + 2y and 2x + 4y are linear combinations of each other since 2 ( x + 2y ) = 2x + 4y.

However, since 2 ( x + 2y = 2 ) results in 2x + 4y = 4 and the second equation reads as 2x + 4y = -8, there is no solution to this system of equations since 4 does not equal -8.

Answer:

option B

Step-by-step explanation:

Answer: option B

Answer:

Answer is (A) 8

Step-by-step explanation:

Answer:

A number cube

Step-by-step explanation:

A coin a 5-sector spinner a number cube a bag of 11 marbles

A number cube is the best to simulate this scenario and predict whether a randomly chosen resident has a library card.

As Coin has only 2 outcomes "Head" and "Tail".

A 5-sector sector spinner has only 5 outcomes we need six outcomes.

A bag of 11 marbles has no differentiated with respect to colors etc.

Hence, A number cube is correct to chosen five out of six residents of Mayville have library cards.

Answer:

c

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

alotta ppl go to the mall cuz they like to shop there, so if u ask ppl at the mall their fav place to shop, many will say "the mall"

Answer:

favorite place to shop i believe

Step-by-step explanation:

I'm sure it become a biased situation when you ask an answer similar to the surroundings.

Answer:

11/7 = (11 x 9)/(7 x 9) = 99/63 > 77/63

3/5 = (3 x 15)/(5 x 15) = 45/75

1/8 = (1 x 10)/(8 x 10) = 10/80

2/9 = (2 x 9)/(9 x 9) = 18/81

Hope this helps!

:)