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kaheart [24]
3 years ago
14

Simplificando a expressão (3x^2 + 5x - 2) + (x^2 - 2x - 1) , vamos obter :

Mathematics
1 answer:
Artist 52 [7]3 years ago
7 0
You have to add all the common terms together.

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Which equation represents a linear equation?
AlekseyPX

Answer:

y - 2 =  - 5(x - 2)

Step-by-step explanation:

y - 2 =  - 5(x - 2) \\ y - 2 =  - 5x + 10 \\ y =  - 5x + 10 + 2 \\ y =  - 5x + 12 \\ y  = 12 - 5x \\

4 0
3 years ago
What is the answer to this question
DanielleElmas [232]

Answer:

65

Step-by-step explanation:

the angle on top is the same  because the lengths of the lines that meet to "H" are the same.

7 0
2 years ago
Kylie starts with $145 in her piggy bank. Each month she adds $20.
djverab [1.8K]

Kylie's first month collection, a1= $ 145

Second month collection , a2= $145+ 20

Third month collection, a3  = $145 +2*20

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so for n months collection = an-1+20

We get an= 20 + an-1  and a1=145


4 0
3 years ago
I need help asap :):)/
Anastaziya [24]

Answer:

35

Step-by-step explanation:

If they won 4/5 then they lost 1/5. If 1/5 is 7 then you need five 7s.

7 × 5 = 35

4 0
3 years ago
Read 2 more answers
The square shown has a perimeter of 32 units. The square is rotated about line k. What shape is created by the rotation and what
harkovskaia [24]
The perimeter of the square is calculated through the equation,
                                        4x = P
where P is the perimeter and x is the measure of the sides.

When P is 32 units then,
                                         32 units = 4(x)
                                                 x = 8 inches

This 8 inches is the diameter of the cylinder formed by the rotation. 
The circumference of the base is calculated through,
                            C = 2πr = πD
Substituting the known values,
                              C = π(8 units) = <em>8π units
</em>
<em></em>When π is equal to 3.14, we solve for the numerical value of the cylinder as follows,
<em>                                      C = 8(3.14) = 25.12 units
</em>
<em></em>Thus, the figure formed is a cylinder with base circumference equal to 25 units. The answer is the third choice. <em>
</em>
6 0
3 years ago
Read 2 more answers
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