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katrin2010 [14]
3 years ago
15

2. Which of the following expressions has a simplified

Mathematics
2 answers:
choli [55]3 years ago
5 0

I think the answer might be C.

Step-by-step explanation:

That is because if you look at C, it is -8 + 3a + 10 - a. Since it says -a, it means you have to subtract 3a - a = 2a, since a variable equals one in algebra.  Then all that is left is -8 + 10, which will give you 2, which will give you 2a + 2. Hope this helps.

den301095 [7]3 years ago
4 0

Answer:

C) -8 + 3a + 10 -a = 2a + 2

Step-by-step explanation:

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2[3(4^2 +1)] - 2^3.
Sav [38]

Answer:

94

Step-by-step explanation:

Do parentheses first, exponents inside them first. 4^2 = 16, + 1 is 17, then multiply by the 3 outside to get 51, then multiply by the 2 outside that to get 102, - 2^3 which is -8 = 94

7 0
4 years ago
URGENT !!!!!!!!!What is the value of x when the expression 3x + 6 equal the expression -15 + 6x WHat does x=__? BEST ANSWER FOR
barxatty [35]

Answer: x= 2

Step-by-step explanation:

hope this helped :)

8 0
3 years ago
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A rectangle has a perimeter of 200m. The length to width ratio is 3:2. Find the LENGTH
Lapatulllka [165]

Answer:

length = 60m

Step-by-step explanation:

let '3x' = length

let '2x' = width

3x + 3x + 2x + 2x = 200

10x = 200

x = 20

length = 3x = 3(20) = 60

4 0
3 years ago
Simplify the expression (4x - 3)(x + 5).
Drupady [299]
(4x-3)(x+5)
= 4x^2+20x-3x-15
= 4x^2+ 17x -15.

The final answer is 4x^2+ 17x -15~
3 0
3 years ago
A function has a constant halving time. What type of function does this represent?
Anna71 [15]
<span>The function which has a constant halving time is in the following form
</span>
A(t) = A_{0} ( \frac{1}{2} )^ \frac{t}{h}
Where:  A₀ is the <span>initial amount
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</span><span>              t    is the time
</span>              A(t) <span>the amount<span> that remains at time t
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The previous function represents an Exponential decay<span> function.
</span>

so, The correct answer is option B. <span>Exponential decay</span>
8 0
4 years ago
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