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Vikki [24]
3 years ago
5

28. Rewrite the Scientific Notation into expanded form (normal number). 8.675309 x 10

Mathematics
1 answer:
Aleks [24]3 years ago
3 0
86.75309 is the answer
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What was gabriel error
Pavlova-9 [17]

The change is given by the difference between how much you paid and how much you actually had to pay. For example, if you pay with a $50 bill and you had to pay $13, your change will be 50-13 = 37 dollars.

In this case, we have

30 - (2.5x+2y-2) = 30-2.5x-2y+2 = 32-2.5x-2y

So, Gabriel's mistake was to leave the negative sign to the "-2" at the end of the expression, instead of flipping it to positive "+2" when subtracting it.

7 0
3 years ago
Simplify<br> (X+4)+(2x+3)
vfiekz [6]

Answer:

3x + 7

Step-by-step explanation:

<u>Step 1:  Distribute the plus</u>

(x + 4) + (2x + 3)

x + 4 + 2x + 3

<u>Step 2:  Combine like terms</u>

x <u>+ 4</u> + 2x <u>+ 3</u>

<em>3x + 7</em>

<em />

Answer:  3x + 7

<u>If needed solve</u>

3x + 7 - 7 = 0 - 7

3x / 3 = -7 / 3

<em>x = -7/3</em>

8 0
3 years ago
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A triangle with two congruent sides is called a(n) triangle.
mars1129 [50]

A triangle with 2 congruent sides is an <u>ISOSCELES</u> triangle.

Answer: Isosceles

FYI: A triangle with 3 congruent sides is an equilateral triangle.

4 0
3 years ago
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What is the value of the expression 3^−4 ?
ikadub [295]
3^-4 = 1/3^4 = 1/81

hope it helps!
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Answer:

A

Step-by-step explanation:

5 0
3 years ago
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