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svetlana [45]
3 years ago
9

1.5meters line 1.2 meters wide what is the area

Mathematics
2 answers:
Zina [86]3 years ago
8 0
Area is easy
Area = length x breadth
= 1.5 x 1.2
=1.8
Wittaler [7]3 years ago
3 0

Answer:

1.8m²

Step-by-step explanation:

Area = Length × Width

Area = 1.5m × 1.2m

Area = 1.8m²

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una ventana rectangular tiene l metros de ancho y h metros de altura, con un perímetro de 6 metros y un área de 2m² ¿cuál es la
seropon [69]

Answer:

The formula for calculating the width of the window is

w=\frac{-(-3)(+/-)\sqrt{-3^{2}-4(1)(2)}} {2(1)}

Step-by-step explanation:

<u><em>The question in English is</em></u>

A rectangular window is l meters wide and h meters high, with a perimeter of 6 meters and an area of 2m². What is the formula for calculating the width of the window?

we know that

The perimeter of the window is equal to

P=2(l+w)

we have

P=6\ m

so

6=2(l+w)

simplify

3=(l+w)

isolate the variable l

l=3-w ----> equation A

The area of the window is equal to

A=lw

we have

A=2\ m^2

so

2=lw ----> equation B

substitute equation A in equation B

2=(3-w)w

solve for w

2=3w-w^2

w^2-3w+2=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

w^2-3w+2=0

so

a=1\\b=-3\\c=2

substitute in the formula

w=\frac{-(-3)(+/-)\sqrt{-3^{2}-4(1)(2)}} {2(1)}  --->  formula for calculating the width of the window

w=\frac{3(+/-)\sqrt{1}} {2}

w=\frac{3(+/-)1} {2}

w=\frac{3(+)1} {2}=2\ m

w=\frac{3(-)1} {2}=1\ m

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3 years ago
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Answer:

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Step-by-step explanation

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inna [77]

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Step-by-step explanation:

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Parker has $2,500 in her bank account that earns 3.8% interest annually. How much money will she have in her bank account after
svlad2 [7]

Answer:

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Step-by-step explanation:

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