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weeeeeb [17]
2 years ago
9

Hellllpppppp meeeee :3

Mathematics
1 answer:
spayn [35]2 years ago
5 0

ANSWER : A= 3r^2 {r<u>></u>0}

1. square both sides

2. Expand

3. solve 3^2= A/3 :  A= 3r^2

4. A=3r^2

5. Verify solutions

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What expressions are equivalent to 7^3 * 7^x
solong [7]

Answer:

The question = (7^3)*(7^x)

When multiplying two exponents with the same base, all you do is add the exponents together and keep the same base

Therefore,

(7^3)*(7^x) = 7^(3+x)

Step-by-step explanation:

7^3+x is the answer

3 0
2 years ago
Plz help me plz f(89) = -481.4 and f(126) = -677.5
yaroslaw [1]

Answer:do u have the answer

Step-by-step explanation:

4 0
3 years ago
If the product of a number and -4 is subtracted from the number, the result is 3 more than the number. Find the number
lesya [120]

Answer: The number is 0.75 or 3/4

Step-by-step explanation:

let x = the number.

Now set up an equation: The product of a number (x) and -4 = -4x. So -4x is subtracted from the number - x.     x-(-4x)

Then, that equals 3 more than the number (x) = x+3

So the equation is x-(-4x)=x+3.

Then, solve the equation!

x-(-4x)=x+3

x+4x=x+3  (Distribute the negative to the parentheses)

5x=x+3  (Combine like terms)

4x=3  (Get the Xs on one side by subtracting x from both sides)

x=0.75 or 3/4  (divide by the coefficiant, 4, on both sides)

3 0
3 years ago
Read 2 more answers
How do I factor 8x^2+12+48?
wolverine [178]
<h3><u>4(2x^2 + 3x + 12)</u></h3>

We can factor a 4 out of this expression.

4(2x^2 + 3x + 12)

Now that the expression is simplified, we can see if splitting the middle term is possible.

<em><u>Display factors of 24.</u></em>

1 * 24

-1 * - 24

2 * 12

-2 * -12

3 * 8

-3 * - 8

4 * 6

-4 * -6

All factors of 24 have been listed, and none of these digits satisfy the criteria.

Trinomial cannot be further factored.

8 0
3 years ago
Increase £30 by 2/5?
Sergeu [11.5K]
2/5 of 30 = 12
30 + 12 = 42
£42
6 0
3 years ago
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