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3 years ago

Can someone answer this question and make sure they show working out. Will reward brainliest to the best answer.

Mathematics

1 answer:

wolverine [178]3 years ago

3 0

Answer:

8a²+8a+12b = 8a²+8a+12b

Step-by-step explanation:

first, expand the brackets

4a + 4a + 12a² + 8b + 4b - 4a²

then, collect like terms

8a + 8a² + 12b

then, rearrange

8a² + 8a + 12b

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Write the converse of this statement. If 3 - 2x = 13, then x = -5.

stiv31 [10]

Basically your just swapping there positions like so:
if x=-5, then 3-2x=13
Hope this helps! :)

5 0

3 years ago

Number 3 write a relation for the perimeter of the hexagon with side length

olasank [31]

Answer:

true

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A surveyor starts at the southeast corner of a lot and

elena-s [515]

Find the difference vertically( North and South) and the difference horizontally ( East and West)

Then use the Pythagorean Theorem.

600 North - 200 South = 400 m

400 West - 100 East = 300 m

Now using the Pythagorean Theorem;

400^2 + 300^2 = total displacement^2

Total displacement^2 = 160,000 + 90,000

Total displacement^2 = 250,000

Total displacement = √250,000

Total displacement = 500 m

7 0

3 years ago

The equation of line fis - 3y + 4x = 9 write the equation of a line that is parallel to line and passes through the point (- 12,

ollegr [7]

Answer:

$y = - 4x - 42$

Step-by-step explanation:

The equation of the line that is parallel to the line we are trying to find is

$- 3y + 4x = 9 \\ or \\ - 3y = - 4x + 9 \:(standard form) \\ \\therefore \: the \: slope \: of \: the \: line \\ \: is \: - 4$

We can recall that when two lines are parallel it means that they have the same slope. Therefore the slope of the line we are trying to find is also -4. We now know that:

$y = 6 \: \: \: x = - 12 \: \: \: slope = - 4$

Therefore the equation of the line is:

$y = mx + c \\ 6= ( - 4)( - 12) + c \\ 6 = 48 + c \\ 6 - 48 = c \\ - 42 = c$

$y = mx + c \\ y = - 4x - 42$

3 0

2 years ago

Find the next term of the following sequence. 25, 10, 4, ... 1.) 0 2.) 8/5 3.) -5

Lostsunrise [7]

Answer:

2.) 8/5

Step-by-step explanation:

a4 = 8/5

5 0

2 years ago