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Gwar [14]
3 years ago
11

Serena simplify the expression 3 (2x - 6 - x + 1 )^2 - 2 + 4x in step 1 she simplified within the parentheses in step 2 she expa

nded the exponent witch is a possible next step
Mathematics
1 answer:
xz_007 [3.2K]3 years ago
4 0

Answer:

For step three she could multiply the two parenthesis against each other to get 3(x² - 10x + 25) - 2 + 4x

Step-by-step explanation:

step 1: 3(x - 5)² - 2 + 4x

step 2: 3(x - 5)(x - 5) - 2 + 4x

For step three she could multiply the two parenthesis against each other to get 3(x² - 10x + 25) - 2 + 4x

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Wilmer went up a hill for x minutes at a speed of y kilometers per minutes. Then he went down the same path at a speed of z kilo
dedylja [7]

Answer:

xy=wz

Step-by-step explanation:

Given that:

Speed of Wilmer up the hill = y km/min

Time taken up the hill = x minutes

Speed of Wilmer down the hill = z  km/min

Time taken up the hill = w minutes

Distance can be calculated by multiplying the Speed with Time i.e.

The formula for distance is given as:

Distance = Speed \times Time

Distance up the hill = y\times x =xy\ kilometers

Distance down the hill = z\times w =wz\ kilometers

It is well known that, the distance up the hill and down the hill will be same.

Putting both the values equal, we get:

xy=wz

4 0
2 years ago
Express the ratio below in its simplest form.<br> 3:12:9
NeX [460]

Answer:

1:4:3.

Step-by-step explanation:

hope this helps

6 0
2 years ago
Read 2 more answers
What transformation transforms (a, b) to (a, −b)​?
koban [17]

We are given

(a, b) ---------------> (a, −b)​

we can see that

x-values of both points are 'a'

which is same

while y-value of first =b

y-value of second =-b

so, y becomes as -y

and we know that

when a function is reflected about x-axis

then y becomes -y

so, option-C.................Answer

3 0
2 years ago
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A square playing field has an area of 1,255 square yards. About how long is each side of the field?
Studentka2010 [4]

Answer:

Step-by-step explanation:

8 0
3 years ago
Explain or show how you could find 5÷13
OverLord2011 [107]

Answer:

bus stop division really hard to show on here.

13/5

13 does not go into 5 so put a decimal point after the 5

13/5.000 carry the 5 over to the zero

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the answer is 0.38461538

3 0
3 years ago
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