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4 years ago

6

What else can the radio 4/5 be written

1 answer:

UNO [17]4 years ago

4 0

4/5 4:5 4 to5 8 to 10 8/10 8:10

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Ratling [72]

Check the picture below.

so our bases are "d" and "d+a+b", and a height of "c".

$\bf \textit{area of a trapezoid}\\\\ A=\cfrac{h(x+y)}{2}~~ \begin{cases} x,y=\stackrel{parallel~sides}{bases}\\ h~~~=height\\ \cline{1-1} x=d\\ y=d+a+b\\ h=c\\ A=(d+b)c \end{cases}\implies (d+b)c=\cfrac{c[d+(d+a+b)]}{2} \\\\\\ 2(d+b)c=c[d+(d+a+b)]\implies 2dc+2bc=c(2d+a+b)$

$\bf ~~\begin{matrix} 2dc \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~+2bc=~~\begin{matrix} 2dc \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~+ac+bc\implies 2bc=ac+bc\implies 2bc=c(a+b) \\\\\\ \cfrac{2b~~\begin{matrix} c \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{~~\begin{matrix} c \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}=a+b\implies 2b=a+b\implies 2b-b=a\implies \blacktriangleright b=a \blacktriangleleft$

8 0

4 years ago

One rectangle is devided into four parts. How much is one part?

Rom4ik [11]

Answer:

$P = \¼R$

Step-by-step explanation:

Given

Shape: Rectangle

Division = 4 parts

Required

How much is one part of the division

Represent the rectangle with R and the parts with P

When a rectangle (R) is divided into 4 parts (P); the relationship between R and P is:

$P = \frac{R}{4}$

$P = \¼R$

<em>This implies that the one part of the division is ¼ of the divided rectangle</em>

7 0

3 years ago

The sum of three consecutive numbers is 72. What are the smallest of these three numbers?

strojnjashka [21]

X=small number x+1= second x+2= third 3x+3=72 3x=69 x=23 smallest number

6 0

3 years ago

I need help on this question plz

alekssr [168]

The curved dome has the area of half a sphere with radius 8 in. That is

... A = 2πr² = 2π(8 in)² = 128π in²

The lateral area of the cylinder is

... A = 2πrh = 2π(8 in)(7 in) = 112π in²

The area of the flat base is

... A = πr² = π(8 in)² = 64π in²

Then the total area of the figure is

... (128π + 112π + 64π) in² ≈ 304·3.14 in²

... = 954.56 in² . . . . matches the 2nd selection

3 0

4 years ago

Would this be a rectangle or a parallelogram??? please help me.

tangare [24]

a rectangle because a parallelogram has more squared so this makes it a rectangle since a rectangle is not as square

3 0

3 years ago