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3 years ago

How can-9 4/5 be expressed as the sum of its integer and fractional parts?

Mathematics

1 answer:

Rufina [12.5K]3 years ago

8 0

Answer:

D is the answer because it make since to me

Step-by-step explanation:

brainlst pls

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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:

The question in English is

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

$P=6\ m$

$6=2(l+w)$

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

$A=2\ m^2$

$2=lw$ ----> 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

$w^2-3w+2=0$

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

substitute in the formula

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

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

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

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

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

7 0

4 years ago

Una escalera, tiene un largo de 6m y está recargada en un muro. El ángulo entre la escalera y el muro es de 65°,

Rudiy27

Adyacente=hipotemusa*coseno del angulo
A=6*cos(65)
A=2.54m
Una pregunta, ¿estudias en educazion.net?

6 0

3 years ago

What does x stand for in 4+x=3x

Irina18 [472]

x stands for a variable, in which the variable would be replaced by a number(s) that would make the equation true.

Hope this helps

7 0

4 years ago

If a function uses variables other than x and y for its input and output variables, you take the original equation and solve for

grandymaker [24]

For the answer to the question, if a function uses variables other than x and y for its input and output variables, you take the original equation and solve for the input variable to find the inverse.

The answer is Simply true. But in real life it's false.

I hope my answer helped you.

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3 years ago

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A) 77° C) 109° B) 167° D) 150°

Grace [21]

Answer:

Wat is the question?

Step-by-step explanation:

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3 years ago

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