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2 years ago

Round the following problems to the nearest ten.

Mathematics

2 answers:

tatyana61 [14]2 years ago

8 0

20,20,50,40,80,70.......

faust18 [17]2 years ago

6 0

Answer:

1. 20

2. 20

3. 50

4. 40

5. 80

6. 70

Step-by-step explanation:

When you round, in this case to the tens place, you look at the number to the right of the value given. So if we are asked to round to the tens place, we must actually look at the ones place.

<h2><u>Remeber:</u></h2><h2><u></u></h2><h2><u>0 - 4 = round down</u></h2><h2><u></u></h2><h2><u>5 - 9 = round up</u></h2><h2><u></u></h2>

1. 2<u>4</u>

=> 20

2. 1<u>5</u>

==> 20

3. 4<u>7</u>

==> 50

4. 4<u>2</u>

==> 40

5. 8<u>1</u>

==> 80

6. 6<u>5</u>

==> 70

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1. 3x^2-7=31<br> 2. 2x^2+18=0<br> 3. 4x^2-26=-50<br> 4. 2x^2+36=x^2

yan [13]

The quadratic equations are solved and answered below -

<h3>What is a equation?</h3>

An equation is a mathematical statement showing the equivalence of two mathematical expressions. Example -

3x + 5 = 8

Given is -

3x² - 7 = 31

2x² + 18 = 0

4x² - 26 = - 50

2x² + 36 = x²

We have -

3x² - 7 = 31

3x² = 38

x² = 38/3

x² = 12.67

x = ±3.56

2x² + 18 = 0

2x² = - 18

x² = -9

x = ±3i

4x² - 26 = - 50

4x² = - 24

x² = -6

x = ±√6i

2x² + 36 = x²

x² = - 36

x = ±√6 i

Therefore, the quadratic equations are solved above.

To solve more questions on Rectangles and their Dimensions, visit the link below -

brainly.com/question/1041084

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Step-by-step explanation:

Y=x^2

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