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3 years ago

3/4(x - 16) = -2(x -3) + 4

Mathematics

2 answers:

Mademuasel [1]3 years ago

5 0

Answer:

X=8

Step-by-step explanation:

galina1969 [7]3 years ago

5 0

Answer:

the value of x=8

Step-by-step explanation:

In order to solve the x in question

3/4(x - 16) = -2(x -3) + 4

let us get started by rearragging and opening the brackets

3(x-16)/4 = -2(x-3) + 4

(3x - 48)/4 = -2x +6 +4

(3x - 48)/4 = -2x +10

multiply through by 4

we have,

3x -48 = -8x + 40

collect the like terms

3x+8x = 40 + 48

11x = 88

divide both sides by 11

11x/11 = 88/11

x = 8

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3 years ago

The length of the base edge of a pyramid with a regular hexagon base is represented as x. The height of the pyramid is 3 times l

sergij07 [2.7K]

Answer:

(a)

h=3x

(b)

$A=\frac{\sqrt{3} }{4} x^2$

(c)

$A=\frac{3\sqrt{3} }{2} x^2$

(d)

$V=\frac{3\sqrt{3} }{2} x^3$ units^3

Step-by-step explanation:

We are given a regular hexagon pyramid

Since, it is regular hexagon

so, value of edge of all sides must be same

The length of the base edge of a pyramid with a regular hexagon base is represented as x

so, edge of base =x

b=x

Let's assume each blank spaces as a , b , c, d

we will find value for each spaces

(a)

The height of the pyramid is 3 times longer than the base edge

so, height =3*edge of base

height=3x

h=3x

(b)

Since, it is in units^2

so, it is given to find area

we know that

area of equilateral triangle is

$=\frac{\sqrt{3} }{4} b^2$

h=3x

b=x

now, we can plug values

$A=\frac{\sqrt{3} }{4} x^2$

(c)

we know that

there are six such triangles in the base of hexagon

So,

Area of base of hexagon = 6* (area of triangle)

Area of base of hexagon is

$=6\times \frac{\sqrt{3} }{4} x^2$

$=\frac{3\sqrt{3} }{2} x^2$

(d)

Volume=(1/3)* (Area of hexagon)*(height of pyramid)

now, we can plug values

Volume is

$=\frac{1}{3}\times\frac{3\sqrt{3} }{2} x^2\times (3x)$

$V=\frac{3\sqrt{3} }{2} x^3$ units^3

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3 years ago

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antiseptic1488 [7]

Answer:

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Step-by-step explanation:

The applicable rules of exponents are ...

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Using these rules, we can simplify the given expression to ...

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Answer:

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Step-by-step explanation:

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− to +}

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