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weqwewe [10]
2 years ago
8

Very happy if u answer my question u will make my day ​

Mathematics
1 answer:
lana [24]2 years ago
6 0

Step-by-step explanation:

I won't be answering all of them because that's a lot, but I'll try and help you on how to do them.

So, factorising means you put the equation into brackets.

The easiest way to work these out would be to look at the pairs of numbers that multiply to make the last number in the equation (so for 2a: 1x2 is the only option, for 2b: 1x4, 2x2, 4x1 for 2c: 1x30, 2x15, 3x10, 5x6 etc)

The next step is to look at the pairs and see which ones could add or subtract to make the number in the middle of the equation

(So for 2a: 1+2=3, 2b: 1+4=5, 2c: 3+10=13)

Then put those numbers into the brackets, with the + or - that you just did

So 2a: (x+1)(x+2)

2b: (m+1)(m+4)

2c: (a+3)(a+10)

etc

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Oliga [24]

Answer:

is this weird but in all my years of school I've never learn something like this

7 0
3 years ago
Use Pythagorean theorem to find the missing length. (round to tenth if necessary) IS
sertanlavr [38]

11.7

Formula: a^2 + b^2 = c^2

so substitute the numbers like this:

10^2 + 6^2 = c^2

both 10^2 and 6^2 are perfect squares:

10 × 10= 100 and 6 × 6= 36

100 + 36= c^2

add:

100 + 36 =

136 = c^2

now in order to get rid of the squared, you put it into a radical:

√136 = √c^2

note: whatever you do on one side, you do to the other

it's easier to use the calculator for this so put √136 and you're gonna get 11.66

since it's asking you to round it to the nearest tenth:

11.66 = 11.7

sorry if the explanation is kinda long ✋ i tried explaining it better in the end but i failed

7 0
2 years ago
Write two expressions to show w increased by 4. Then, draw models to prove that both expressions represent the same thing.
Vinil7 [7]

Answer:Answer:

w + 4 and 4 + w

Step-by-step explanation:

Given phrase,

w is increased by 4,

That is, w + 4

By the commutative property of addition,

The expression would be,

4 + w

For drawing a model that shows w + 4

Take two boxes in which first shows w and second shows 4 and add them,

Similarly, for showing 4 + w, take first box that shows 4 and second box that shows w then add them.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How do I solve for the blank
OLga [1]
Look at the problem and do it in order
3 0
3 years ago
PLEASE HELP <3
quester [9]

Answer:

-403/40

or

-10 3/40

or

-10.075

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2 years ago
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