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HACTEHA [7]
3 years ago
5

When does order matter when writing algebraic expression

Mathematics
1 answer:
Anni [7]3 years ago
4 0
Think of PEMDAS. Solve in this order. Parentheses, Exponent, Multiply, Divide, Add, Subtract. Solving in this order will get you to the right answer. If you try to just solve from left to right, you may get it wrong if it is not solved in that order.
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Work out the area of a triangle of base 7.5 and height 6cm
Reptile [31]
The answer should be 22.5
3 0
3 years ago
Read 2 more answers
Can someone review this and tell me if i'm right?
telo118 [61]
Yes you are right from what i seen 

3 0
4 years ago
PLEASEEE HELPPPP!!!!!!!!!skkaksks
Vesnalui [34]

Step-by-step explanation:

  1. (√3+√7)(√3+√7)
  2. (√3)^2+[(√3*√7)+(√3*√7)]+(√7)^2
  3. 3+2√21+7
  4. 10+2√21
6 0
2 years ago
The country of benin in west Africa has a population of 9.05 million people. The population is growing at a rate of 3.1% each ye
Oksanka [162]
The function would be the initial plus growth rate * # years

So: f(x) = 9.05 + 0.031(7)
Where x= # years
3 0
2 years ago
What is the least common multiple of 6x^2+39x-21 and 6x^2+54x+84?
SOVA2 [1]

Answer:

12x^3+102x^2+114x-84

Step-by-step explanation:

<u>Given polynomials</u>:

\begin{cases} 6x^2+39x-21\\6x^2+54x+84 \end{cases}

Factor the polynomials:

<u>Polynomial 1</u>

\implies 6x^2+39x-21

\implies 3(2x^2+13x-7)

\implies 3(2x^2+14x-x-7)

\implies 3[2x(x+7)-1(x+7)]

\implies 3(2x-1)(x+7)

<u>Polynomial 2</u>

\implies 6x^2+54x+84

\implies 6(x^2+9x+14)

\implies 6(x^2+7x+2x+14)

\implies 6[x(x+7)+2(x+7)]

\implies 6(x+2)(x+7)

\implies 2 \cdot 3(x+2)(x+7)

The lowest common multiplier (LCM) of two polynomials a and b is the <u>smallest multiplier</u> that is <u>divisible</u> by both a and b.

Therefore, the LCM of the two polynomials is:

\implies 2 \cdot 3(x+7)(x+2)(2x-1)

\implies (6x^2+54x+84)(2x-1)

\implies 12x^3+108x^2+168x-6x^2-54x-84

\implies 12x^3+102x^2+114x-84

8 0
2 years ago
Read 2 more answers
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