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3 years ago

a side of an equilateral triangle is 2/8 cm long. draw a picture that shows the triangle. what is the perimeter of the triangle?

1 answer:

8 0

We use P = 3 times (side of triangle), where P is the perimeter of the triangle.

P = 3(2/8)cm
 P = (3/1)(2/8) cm long
P = (3/1)(1/4)
P = (3)(1)/(1)(4)
P = 3/4 = (Decimal: 0.75)

Hope this helps!

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A rectangular box has the dimensions shown in the diagram. The volume of the box is given by the function V(x) = x3 – 4x, where

marta [7]

Answer:

$Height =3$

Step-by-step explanation:

Given

$Length = x + 2$

$Width = x - 2$

$Height = x$

$Volume = 15$

Required

Find the height

The volume is calculated as thus:

$Volume = Length * Width * Height$

This gives

$15 = (x + 2) * (x - 2) * x$

Apply difference of two squares

$15 =(x^2 - 4 ) * x$

$15 = x^3 - 4x$

Subtract 15 from both sides

$x^3 - 4x - 15 = 0$

Using a calculator to factorize, we have:

$(x-3)(x^2+3x+5) = 0$

Split

$x - 3 = 0$ or $x^2 + 3x + 5 = 0$

$x = 3$ or $x^2 + 3x + 5 = 0$

x has complex roots for $x^2 + 3x + 5 = 0$

Hence:

$x = 3$

Recall that:

$Height = x$

$Height =3$

3 0

2 years ago

600,000 gallons of water pass through a given point along a river every minute. Which equation represents the amount of water, y

11111nata11111 [884]

Answer:

y=600,000 x=1

Step-by-step explanation:

y is equal to 600,000 which means that every minute (x) 600,000 gallons of water would pass that point in the river

8 0

2 years ago

Read 2 more answers

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solmaris [256]

Different Number , 23 is in the 2 digets and 9 is at the one digets one of them is low one of them is high

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2 years ago

Wich fraction can be replaced with one half when estemating fraction

s2008m [1.1K]

Wich fraction can be replaced with one half when estemating fraction

Example
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3 years ago

Evaluate the expression 2(8 − 4)2 − 10 ÷ 2.

Darina [25.2K]

2(8-4)2-10/2, 8 - 4 is 4 so then times that by 2 and you'll get 8 then multiply that by 2 to get 16, after that you need to subtract it by ten which is 6 then divide it by 2 to get 3.

Hope this helped

6 0

2 years ago