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katen-ka-za [31]
3 years ago
7

*forgets how to do this*

Mathematics
2 answers:
hammer [34]3 years ago
8 0

Answer:

-12

Step-by-step explanation:

-8-(-12= -8+12

well, 12-8=4, so -8+12=4

Aleksandr-060686 [28]3 years ago
5 0

Answer:

4

Step-by-step explanation:

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Discrete or continuous ​
LUCKY_DIMON [66]

i think the answer is contionous

7 0
2 years ago
Please help <br> The diagram shows a 5ft student standing near a tree
Novosadov [1.4K]

Answer:

25 ft

Step-by-step explanation:

The diagram shows two triangles that are similar.  Similar triangles have equal angles and sides that are proportional to each other.  Since the base of each triangle is given, we can find the proportion of the sides:

\frac{smaller}{larger}=\frac{8}{40}=\frac{1}{5}

Given the ratio of the smaller to larger triangle, we can set up a proportion to find the missing height of the larger triangle:

\frac{1}{5}=\frac{5}{x}, where 'x' represent the height of the tree

cross-multiply:  x = (5)(5) or 25 ft

8 0
3 years ago
How do I do pre-Algebra???
Lana71 [14]

Hey there!

The main concept of pre-algebra is solving equations for variables in them.

For example, let's say you have the algebraic equation below.

x+1=3

With algebra, you need to figure what x is equal to. To do so, you will use inverse operations on both sides of the equation to isolate x one side, showing what it is equal to.

We would subtract 1 to both sides to isolate x on one side.

x+1-1=3-1

As you can see, +1-1=0, therefore, this would give us x+0, or just x. Now it is isolated and will show us what it is equal to.

x=3-1

x=2

Therefore, in our equation x+1=3, x would be equal to 2.

I hope this explanation helps! Have a great time here at Brainly!

7 0
3 years ago
When 3x2-9x + 3 is factored, the result is 3(x2-3x + 1). Explain why it is necessary to include the term 1 in this factored form
solong [7]

It is necessary to include the term one then you will have the plus three

7 0
3 years ago
The Percent of increase
ANEK [815]
Percent of Increase = Increase / Original    * 100%

Increase = $33 - $30 = $3
Original Price = $30

Percent Increase = $3 / $30  * 100%  ====  10%
5 0
3 years ago
Read 2 more answers
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