Each classmates contributes $2 for charity Write an expression for the amount of money raised by your class

2 answers:

5 0

2n
2 is there due to the fact that everyone is donating $2. n is for the number of people in the class.
E.g.
If there were 20 people in the class, you would substitute n for 20.
20 x 2 = $40

Alecsey [184]3 years ago

3 0

$2*S=A
S=Student
A=Total amount

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What is the completely factored from of 9x2+24x+16

dezoksy [38]

Answer:

(3x+4)(3x+4) is factor of given expression.

B is correct.

Step-by-step explanation:

We are given an expression $9x^2+24x+16$

Formula: $a^2+2ab+b^2=(a+b)^2$

First we write each term as perfect square as formula.

$\Rightarrow 9x^2+24x+16$

$\Rightarrow (3x)^2+2\cdot 3x\cdot 4+4^2$

Using formula , a=3x and b=4

$\therefore (3x)^2+2\cdot 3x\cdot 4+4^2=(3x+4)^2$

Now we write same number two times.

Hence, (3x+4)(3x+4) is factor of given expression.

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ki77a [65]

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d² = 4² + 7²
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C 8.1

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