3 years ago

What does 6.4 round up to

Mathematics

2 answers:

slega [8]3 years ago

4 0

6 because if it is .5 and up it rounds to the next whole number

Nadusha1986 [10]3 years ago

3 0

The answer is 6 because the number behind the decimal point is not higher than the number 5

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3 years ago

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Use Heron's formula to find the area of the triangle. Round to the nearest square foot.

Sphinxa [80]

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A ≈ 2 ft²

Step-by-step explanation:

The area (A) of a triangle using Heron's formula is

A = $\sqrt{s(s-a)(s-b)(s-c)}$

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s = $\frac{a+b+c}{2}$ = $\frac{4+4+1}{2}$ = $\frac{9}{2}$ = 4.5

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A = $\sqrt{4.5(4.5-4)(4.5-4)(4.5-1)}$

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8 0

3 years ago

1. 4x-8+2x+-5x+x²-3=<br> 2.3x+5x=<br> 3.2r+4+3x-2=<br> 4.3x-2y-x+5y=<br> 5.2y²-8y³+5y-5y²+4y³=

Marrrta [24]

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2. 2x + 5x = 8x

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4. 3x - 2y - x + 5y = (3x - x) + (5y - 2y) = 2x + 3y

5. 2y^2 - 8y^3 + 5y - 5y^2 + 4y^3 = (4y^3 - 8y^3) + (2y^2 - 5y^2) + 5y =
-4y^3 - 3y^2 + 5y

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3 years ago