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Scrat [10]
3 years ago
7

-1/2 (-2x + 4y)=____________________________

Mathematics
2 answers:
Len [333]3 years ago
7 0

Answer:

-1/2 (-2x + 4y)= x - 2y

Step-by-step explanation:

-1/2 (-2x + 4y)

x - 2y

never [62]3 years ago
4 0

Answer:

x - 2y

Step-by-step explanation:

-\frac{1}{2}(-2x + 4y)\\\\\text{Distribute.}\\\\x-2y

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What is a scientific notation?
kirza4 [7]

Answer:

Scientific notation is a way of writing long numbers, often with a lot of zeros, in a shorter and easier to read format.

Step-by-step explanation:

As an example I will use 360

first move the decimal so the number is larger than one but less than ten

So the number will be 3.60

to make it equal to 360 it would be 3.6 x 10^2 multiplying 3.6 by 10 to the power of 2 will make it 360. for a more in depth and probably better explination I would check khan academy.

6 0
4 years ago
Which pair shows equivalent expressions?
DENIUS [597]

2(\frac{2}{5}x + 4) =  \frac{4}{5}x + 4 which is the second option is the equivalent expression.

Explanation:

First,  we need to calculate the value of two-fifths of x. It means 2 portions out of the five portions of x which equates to \frac{2}{5}x.

Now we calculate the values of the two expresssions on the LHS.

1) 2 (two-fifths x + 2) = 2 (\frac{2}{5}x + 2) = \frac{4}{5}x + 4.

2)  (two-fifths x + 4) = 2(\frac{2}{5}x + 4) =  \frac{4}{5}x + 8.

Now we determine values of the four expressions on the RHS.

1) Two and two-fifths x + 1 = 2\frac{2}{5}x + 1

2) Four-fifths x + 4 = \frac{4}{5}x + 4

3) Four-fifths x + 2 = \frac{4}{5}x + 2

4) Two and two-fifths x + 8 = 2\frac{2}{5}x + 8.

Out of the various LHS and RHS values, the 1^{st} LHS value and 2^{nd} RHS value is the same. So option 2 is the answer.

7 0
3 years ago
Read 2 more answers
Solve the equation 3/2(y-1) =y+5 and represent the solution on number line and on the cartesian plane...... pls solve it and spa
motikmotik

Answer:

y = 13

Step-by-step explanation:

Step 1: Distribute

3/2y - 3/2 = y + 5

Step 2: Subtract <em>y</em> on both sides

1/2y - 3/2 = 5

Step 3: add 3/2 on both sides

1/2y = 13/2

Step 4: Divide both sides by 1/2

y = 13

6 0
3 years ago
Read 2 more answers
I Need Help, Fast !!
Ivan

All of the answer choices are correct!

Thanks!

8 0
4 years ago
Read 2 more answers
Can someone please give me the answer to this problem and explain how to do it?
Romashka-Z-Leto [24]
-5+6a+(-8)+(-3a)=
=-5+6a-8-3a=
=3a+(-13)
5 0
3 years ago
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