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mezya [45]
3 years ago
8

<

Mathematics
1 answer:
just olya [345]3 years ago
4 0

Answer:

Trinomial

Binomial

and monomial

Step-by-step explanation:

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The area of a rectangle is 56 cm. The length is 2 cm more than x and the width is 5 cm less than twice x. Solve for x. Round to
Black_prince [1.1K]
 Length = x + 2  (because it is 2 cm more than x)
Width = 2x - 5   (5 cm lest than 2x)Area = 54 cm2  this is the formula to find the area Length × Width = Area (x + 2)(2x - 5) = 542x2 - x - 10 = 54   (this is you area)

  Subtract 54 on both sides of equation to make the right side zero. 2x2 - x - 64 = 0  then use the quadratic formula x = (-b ± √(b2 - 4ac)) / 2a where:a = 2b = -1c = -64 Plug in these values into the formula. x = (1 ± √(1 - 4(-128))) / 4 x = (1 ± √(513)) / 4 x = (1 ± 22.65) / 4 x = (1 + 22.65) / 4          and          x = (1 - 22.65) / 4 x = 5.91                          and          x = -5.41  Check the validity of the x values by adding them to the length and width.  If the length or width should be a negative value, then that value of x is not acceptable. Now x = 5.91 Length = 5.91 + 2  (positive value.)Width = 2(5.91) - 5  ( positive value.) x = 5.91    If we look at this -- x = -5.41, Both length and width will be negative values. We reject this value of x.  The answer is x = 5.91

Hope I helped and sorry it was really long
6 0
2 years ago
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Round 4,398,202 to the nearest 100
Klio2033 [76]
In the hundreds spot is a 2 and 2 is under 5 so we round down which would be 4 398 200
5 0
3 years ago
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What are some numerical expressions for 9 times x?
Lorico [155]

Answer:

9x

9 • x

9(x)

9*x

I think that's what the question means?

7 0
2 years ago
Which fraction is between 3/20 and 7/10
slavikrds [6]
5/15 depending on what the answers are

8 0
3 years ago
Rewrite the expression in a simpler way: (only one sign between integers and no parentheses).
torisob [31]

Answer: 28 - 8

Step-by-step explanation:

Adding a negative number is the same as subtracting its absolute value (:

7 0
2 years ago
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