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PtichkaEL [24]
3 years ago
6

Ivan evaluated the expression 8+12÷3×2 and got 10. What mistake did he make?

Mathematics
2 answers:
JulsSmile [24]3 years ago
5 0
He didn’t multiply first
lesya [120]3 years ago
3 0
Ivan forgot to follow PEMDAS
Division first
12/3 = 4
4 x 2 = 8
8 + 8 = 16
Hope this helps!
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A runner starts from rest and accelerates uniformly to a speed of 8.0 meters per
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Step-by-step explanation:

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From the basic science,

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Step 2:

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I believe the answer is: 

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Bill is able to save $35/week after working part-time and paying his expenses. These two formulas show his weekly savings: f(1)
Umnica [9.8K]
1. We use the recursive formula to make the table of values:
f(1) = 35
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f(3) = f(1) + f(3-1) = f(1) + f(2) = 35 + 70 = 105
f(4) = f(1) + f(4-1) = f(1) + f(3) = 35 + 105 = 140
f(5) = f(1) + f(5-1) = f(1) + f(4) = 35 + 140 = 175

2. We observe that the pattern is that for each increase of n by 1, the value of f(n) increases by 35. The explicit equation would be that f(n) = 35n. This fits with the description that Bill saves up $35 each week, thus meaning that he adds $35 to the previous week's value.

3. Therefore, the value of f(40) = 35*40 = 1400. This is easier than having to calculate each value from f(1) up to f(39) individually. The answer of 1400 means that Bill will have saved up $1400 after 40 weeks.

4. For the sequence of 5, 6, 8, 11, 15, 20, 26, 33, 41...
The first-order differences between each pair of terms is: 1, 2, 3, 4, 5, 6, 7, 8...since these differences form a linear equation, this sequence can be expressed as a quadratic equation. Since quadratics are functions (they do not have repeating values of the x-coordinate), therefore, this sequence can also be considered a function.
4 0
3 years ago
F(x) = (1)<br> What is the x intercept
Vinvika [58]

Answer:

There is no x-intercept, only a y-intercept, which would be 1

8 0
3 years ago
Which is a complete list of factors of each term in the expression 16a+18ab?
gregori [183]

Answer:

2a

Step-by-step explanation:

2a(8+9b)

Open the bracket you have

16a+18ab

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