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enot [183]
3 years ago
5

Help asap please!!!!!!​

Mathematics
1 answer:
Andrews [41]3 years ago
3 0

Step-by-step explanation:

[(-3 × 2 × (-4)] ÷ [-6 × 12]

[3 × 2 × -4] ÷ [-6 × 12]

[6 × -4]/[-6 × 12]

-4/(-1 × 12]

-4/-12

⅓

Option A is wrong

Option B is wrong -9/-18 = ½ not ⅓

Option C is correct = -24/-72 = ⅓

Option D is wrong = 9/-18 = -½ not ⅓

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Which one of these formulas describes the following sequence?<br><br> 1,5,12,22,35
kati45 [8]

We can find a formula for nth term of the given sequence as follows:

1, 5, 12, 22, 35

The 1st differences between terms:

4, 7, 10, 13

The 2nd differences :

3, 3, 3

Since it takes two rounds of differences to arrive at a constant difference between terms, the nth term will be a 2nd degree polynomial of the form: a n^2 + b n + c, where c is a constant. The coefficients a, b, and the constant c can be found.

We can form the following 3 equations with 3 unknowns a, b, c:

1 = a\cdot1^2 + b\cdot1 + c\\5 = \cdot2^2 + b\cdot2 + c\\12 = a\cdot3^2 + b\cdot3 + c

Solving for a, b, c, we get:

a = 3/2, b = -1/2, c = 0

Therefore, the nth term of the given sequence is:

\boxed{ a_n = \dfrac{3}{2}n^2- \dfrac{1}{2} n}

7 0
3 years ago
McKenna wants to divide 48.6 by 0.7. In order to estimate the quotient, which is the best expression to use?
Natasha_Volkova [10]

Answer:

Option D is the Answer

Step-by-step explanation:

Given : Benni wants to divide 48.6 by 0.7.

To find : In order to estimate the quotient, which is the best expression to use?

Solution :

In order to estimate i.e. an approximate calculation we round the numbers,

48.6 as tenth place is > 5 then it round completely

0.7 as tenth place is > 5 then it round completely

So the estimated expression is given by,

Therefore, option D is correct.

6 0
3 years ago
Read 2 more answers
Marlene's taxable income is $95,000. Use this tax schedule to calculate the total amount she owes in taxes. A. 12,88.75 B. 17,90
zheka24 [161]
The answer is C. 

Since here taxable income is over $77,100 and below $160,850, her tax is $15,698.75 + [.28*($95,000 - $77,100)].

Tax = $15,698.75 + [.28*($17,900)]<span>.
       = </span>$15,698.75 + [$5012]<span>.
       =</span><span> $</span><span>20,710.75

Thank you for posting this question. Please feel free to ask me more.</span>
7 0
3 years ago
Which relation describes the graph?
otez555 [7]

Answer:

A.

Step-by-step explanation:

idk how to explain it. all you need to do is look at the graph..... every point is (x,y). x is where it is horizontally and y is vertically

8 0
3 years ago
Jessica has one piece of ribbon that is 6 2/3 yards long and one piece that is 5 1/3 yards long. What is the total length, in fe
AfilCa [17]
Answer: 36

Step-by-step: 6 2/3 + 5 1/3 = 12
12 x 3 = 36
5 0
3 years ago
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