3 years ago

(9x−5/2) −(3−2x/3) −(8x−2/4 )=2

Mathematics

1 answer:

Ierofanga [76]3 years ago

8 0

The answer for the equation is 21/5 or 4.2.

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Three rectangular prisms have a combined volume of 518 cubic feet. Prism A has one third of the volume of Prism

timurjin [86]

A + B + C = 518 ft^3
A = 1/3B, or 3A = B
B = C
A + B + C = 518 ft^3
1/3B + B + B = 518
7/3B = 518
B = 518×3/7 = 222 ft^3
A = 1/3B = 1/3×222 = 74 ft^3
C = B = 222 ft^3

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3 years ago

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Im on a test and i need the answer really bad please help me out

mash [69]

I’m not sure but good luck with your test

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2 years ago

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svet-max [94.6K]

Answer:

The polygon has 9 sides

Step-by-step explanation:

we know that

A regular polygon has equal length sides and equal interior angles

step 1

Find the measure of the interior angle

Remember that

The interior angle plus the exterior angle must be equal to 180 degrees (form a linear pair)

Let

x ----> the measure of each interior angle in the regular polygon

$x+40^o=180^o$

solve for x

$x=180^o-40^o=140^o$

step 2

Find the number of sides of the regular polygon

we know that

The measure of each interior angle in a regular polygon is given by the formula

$x=\frac{(n-2)180^o}{n}$

where

n is the number of sides of the polygon

substitute the given values

$140^o=\frac{(n-2)180^o}{n}$

solve for n

$140n=180n-360\\180n-140n=360\\40n=360\\n=9\ sides$

therefore

The polygon has 9 sides

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3 years ago

If x is 4, what is:<br> x + 5<br><br><br> 3x:

kirill [66]

Answer:

1) x+5

(4)+5 =

2) 3x

3(4)

Step-by-step explanation:

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bija089 [108]

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2 years ago