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3 years ago

Which ones is the LCD (Least Common Denominator) out of these three number: 3, 4, and 20?

2 answers:

7 0

I learnt it as lowest common denominator, and the question needs to be in the form, "which of these three numbers (3,4,20) is the lowest common denominator of *insert number here*"

Need to know which number you are asking the LCD for?

Verizon [17]3 years ago

4 0

The least common denominator is 1.

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7 | 6.3 | =<br><br><br><br> help meeeeee

MakcuM [25]

Answer:

i would say 1.111111111111 you get it it keeps going

6 0

3 years ago

Read 2 more answers

If a,b,c,d are in continuous proportion then prove that (c+a) (c+d) = (b+c) (b+d)

sesenic [268]

Answer:

We must prove that (c+a)(c+d) = (b+c)(b+d)

Let us use principles from mathematical induction
$\frac{a}{b} = \frac{b}{c} = \frac{c}{d} = x$
a=bx , b=cx, c=dx
a+c = b + c
c +d = b + d
Such that (a+c)(c+d)=(b+c)(b+d)

Rate positively and give brainlist

8 0

3 years ago

Solve 3(x + 2) > x.

Kamila [148]

Answer:

3x + 6 > x

2x > -6

x > -3

answer is d

6 0

3 years ago

Read 2 more answers

3x to the power of 3 + 21x squared + 36x = 0 by factoring the quadratic equation.

Diano4ka-milaya [45]

Answer:

x = 0, -4 and -3.

Step-by-step explanation:

The given expression is "3x to the power of 3 + 21x squared + 36x = 0".

We can write this expression as follows :

$3x^3+21x^2+36x=0$

Taking 3x common.

$3x(x^2+7x+12)=0\\\\3x=0\ \text{and}\ (x^2+7x+12)=0$

x = 3

$x^2+7x+12=0\\\\x^2+3x+4x+12=0\\\\x(x+3)+4(x+3)=0\\\\(x+4)(x+3)=0\\\\x=-4,-3$

Hence, the solution of the given quadratic equation are x = 0, -4 and -3.

5 0

3 years ago

A city's population is currently 500,000. If the population doubles every 65 years, what will the population be 130 years from n

kompoz [17]

Answer:

2,000,000

Step-by-step explanation:

Simple maths, really.

65 times 2 is 130, and the population is already 500,000 with no time passing. 65 years later, the population would be 1,000,000. 65 years after that, the population would double again, so the answer would be 2 million.

Hope this helped!

5 0

3 years ago