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rewona [7]
2 years ago
11

If w = 2, x = 3, y = 5, and z = 6 then evaluate the expression: 2w

Mathematics
2 answers:
Lisa [10]2 years ago
7 0

Answer:

4

Step-by-step explanation:

2(2) =4

cluponka [151]2 years ago
6 0

answer:

4

step by step :

w=2

2×2=4

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9 = v + 4 v + 12<br><br> help me with this
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Answer:

v=-3/5

Step-by-step explanation:

9 = v + 4 v + 12

=>5v=9-12

=>v=-3/5

8 0
3 years ago
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If PQ=8 and Q lies at -13 where could P be located?
choli [55]

Answer:

In the given figure the point on segment PQ is twice as from P as from Q is. What is the point? Ans is (2,1).

Step-by-step explanation:

There is really no need to use any quadratics or roots.

( Consider the same problem on the plain number line first.  )

How do you find the number between 2 and 5 which is twice as far from 2 as from 5?

You take their difference, which is 3. Now splitting this distance by ratio 2:1 means the first distance is two thirds, the second is one third, so we get

4=2+23(5−2)

It works completely the same with geometric points (using vector operations), just linear interpolation: Call the result R, then

R=P+23(Q−P)

so in your case we get

R=(0,−1)+23(3,3)=(2,1)

Why does this work for 2D-distances as well, even if there seem to be roots involved? Because vector length behaves linearly after all! (meaning |t⋅a⃗ |=t|a⃗ | for any positive scalar t)

Edit: We'll try to divide a distance s into parts a and b such that a is twice as long as b. So it's a=2b and we get

s=a+b=2b+b=3b

⇔b=13s⇒a=23s

7 0
3 years ago
Plz help me well mark brainliest if correct...?????
galben [10]

Answer:

Option B, Shows change over time

Step-by-step explanation:

Since the slope of a line graph could be found out by the formula;

Change y / Change in x...

<u>This represents change over time</u>

Hope this helps!

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Which of the following expressions is equivalent to the one shown below
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