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2 years ago

How would you solve this equation?use words only 2+4=8

Mathematics

1 answer:

QveST [7]2 years ago

6 0

Answer:

x=2

Step-by-step explanation:

First, subtract four on both sides and then divide both sides by 2 to get x=2.

2x+4=8

-4 -4

2x=4

÷ 2 ÷2

x=2

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2 years ago

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Solve 5r2 – 12 = 68. {±4} {±5} {±3} {±6}

sashaice [31]

Hey there!

Assuming you meant

$5r^2 - 12 = 68$

If so, follow these steps so it can be a little bit easier to solve

Firstly, we have to $add$ by $12$ on each of your sides

$5r^2 -12 +12 \\ \\ 68 + 12$

$5r^2 = 5r^2 \\ \\ 68 + 12 = 80$

We get: $5r^2 =80$

Now, we have $divide$ by $5$ on each of your sides

$\frac{5r^2}{5} = \frac{80}{5}$

$\frac{80}{5} = 16$

We get: $r^2 = 16$

$r =$ ± $\sqrt{16}$

Therefore , your answer is: $r =$ ± $4$

Good luck on your assignment and enjoy your day!

~ $LoveYourselfFirst:)$

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3 years ago

Someone please me thank you

RSB [31]

Answer:

Graph dots in the points of the following:

(-4,10)

(-3,8)

(-2,6)

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(0,2)

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3 years ago

What is the best approximation for the perimeter of a semicircle with a dimeter of 12cm?

taurus [48]

Answer is choice B: the circumference of a circle is the same as perimeter and is defined by πd (or pi times diameter) We can cut this in half because we are working with a semicircle: so we have 6π which approximates to the value in answer when using 3.14 for pi Woops: forgot to add the diameter of 12 so we would have 30.84

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2 years ago

a bag contains 8 red 4 blue and 4 yellow marbles what is the probrability of randomly choosing 2 blue marbles without replacemen

enyata [817]

Answer:

12.5%

Step-by-step explanation:

8+4+4=16

2/16*100=12.5

12.5%

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3 years ago