The number 0.8 can be written as 8/9, so it is a irrational number true or false

Mathematics

1 answer:

lesya692 [45]3 years ago

5 0

False//////////////////////////////////////////////////////////////////////////

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Find the angle measures in each regular polygon

erma4kov [3.2K]

Answer:

Step-by-step explanation:

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3 years ago

Slove the simoltanous equation by using substitution or elimination method 5x-3y=1 3x+2y=1<br>

xxTIMURxx [149]

<u>By substitution method </u>

5x - 3y =1

3x + 2y = 1

_____o____o____

$5x - 3y = 1 \\ 5x = 1 + 3y \\ x = \frac{1 + 3y}{5}$

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$3x + 2y = 1 \\ 3( \frac{1 + 3y}{5} ) + 2y = 1 \\ \frac{3 + 9y}{5} + 2y = 1 \\ \frac{3 +9y + 10y}{5} = 1 \\ \frac{3 + 19y}{5} = 1 \\ 3 + 19y = (1)(5) \\ 3 + 19y = 5 \\ 19y = 5 - 3 \\ 19y = 2 \\ y = \frac{2}{19}$

______o_____o____

$x = \frac{1 + 3y}{5} = \frac{1 + 3 \frac{2}{19} }{5} \\ x = \frac{1 + \frac{6}{19} }{5} = \frac{ \frac{19 + 6}{19} }{5} = \frac{ \frac{25}{19} }{5} \\ x = \frac{25}{19} \div 5 \\ x = \frac{25}{19} \times \frac{1}{5} \\ x = \frac{5}{19}$

I hope I helped you^_^

7 0

3 years ago

A square vegetable garden has side lengths of 14 feet. You plant flowers in the center portion of the garden,

Usimov [2.4K]

Answer:

Area of tomato section is 45 $ft^2$

Step-by-step explanation:

The total area for garden is the area of a square with side 14 ft.

That means the garden's total area is the square of its side:

Area of a square of side "x" = $x*x=x^2$ , then for our case where the square's side is 14 ft, the square's area becomes: $Area=(14\,ft)^2 = 196\, ft^2$

Inside this area, there is a square of side 4 ft reserved for flowers (and what is left -the rest- for veggies). The area of the flower section is then: $(4\,ft)^2=16\,ft^2$ . Therefore the rest of the garden that is intended for veggies is (the total garden area minus the flower section area) = $196\,ft^2-16\,ft^2=180\,ft^2$

This remaining veggie are is to be divided in four (4) equal parts, and one of them destined for tomato plants. The area of each of the veggie sections is one fourth of the remaining area: $\frac{180\,ft^2}{4} =45\, ft^2$