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Vitek1552 [10]
3 years ago
14

Subtract -5x^2-9x+8− from -6x^2+5−

Mathematics
1 answer:
sweet [91]3 years ago
8 0

Answer: x > 5 - 3

Step-by-step explanation:

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PLEASE HELP IM TIMED ON THIS AND I NEED HELP ASAP PRONTO!!!
dimulka [17.4K]

Answer:

1, 2, 4, 6, 7, 8 (starting from top)

Step-by-step explanation:

for it to be scientific notation, the number has to be between 1 and 10. Hope it helps

6 0
3 years ago
Fill in the blank with the recursive function. Be sure to include the starting point.
erik [133]

Answer:

The recursive  function that represents the number of books Ashley has at any time is

a_n=a_{n-1}-n

starting at

a_1=100

Step-by-step explanation:

Ashley has 100 books that she wants to give away at the rate of n books per week.

So,

a_1=100\\ \\a_2=100-n=a_1-n\\ \\a_3=a_2-n\\ \\...\\ \\a_n=a_{n-1}-n

Thus, the recursive  function that represents the number of books Ashley has at any time is

a_n=a_{n-1}-n

starting at

a_1=100

4 0
4 years ago
Can somebody help me?
puteri [66]
It is an open circle on 2 and then pointing to the left
4 0
3 years ago
Can someone help me with these questions and explain how to find the answer?
ololo11 [35]
12)
First of all, you need to know that profit is the difference between selling price and cost price. In this problem, profit is equal to the markup. Total profit is equal to the profit on each car multiplied by the number of cars sold.

The profit on each car is 2000 -400n, where n is defined in the problem statement as the number of markdowns (of $400).

The number of cars sold is 20 +6n. (Starting at 20, increasing by 6 for every markdown.)

The total monthly profit is the product of these binomials.
.. P(n) = (2000 -400n)*(20 +6n)
.. P(n) = -2400n^2 +4000n +40,000 . . . . . . selection C


13)
Matching functions to data points is often just a matter of trying them to see which fits. The first two function both match points (0, 2) and (1, 6). Functions C and D fail to match (1, 6).

Only the second function matches (2, 18).

The appropriate choice is
.. B. y = 2(3)^x
6 0
4 years ago
The smallest object visible with your eyes is similar to the width of a piece of hair, which is 1×10−4 meters wide. Using an opt
Sloan [31]

Answer:

B. 5\times10^{2}

Step-by-step explanation:

We are told that the smallest object visible with our eyes is similar to the width of a piece of hair, which is 1\times 10^{-4} meters wide.

Using an optical microscope, we can see items up to 2\times 10^{-7} meters wide.

To find the objects we can see with our eyes are how much larger than the objects we can see with an optical microscope, we can set an equation as:

\frac{\text{The width of the object we can see with our eyes}}{\text{The width of the objects we can see with microscope}}=\frac{1*10^{-4}}{2*10^{-7}}

Using the exponent rule of quotient \frac{a^m}{a^n}=a^{m-n} we will get,

\frac{\text{The width of the object we can see with our eyes}}{\text{The width of the objects we can see with microscope}}=\frac{1}{2}*10^{-4-(-7)}

\frac{\text{The width of the object we can see with our eyes}}{\text{The width of the objects we can see with microscope}}=0.5*10^{-4+7}

\frac{\text{The width of the object we can see with our eyes}}{\text{The width of the objects we can see with microscope}}=0.5*10^{3}

\frac{\text{The width of the object we can see with our eyes}}{\text{The width of the objects we can see with microscope}}=0.5*10\times 10^{3-1}

\text{The object we can see with our eyes}=5\times10^{2}*\text{The objects we can see with microscope}

Therefore, the objects we can see with our eyes are 5\times10^{2} times larger than the objects we can see with an optical microscope and option B is the correct choice.

3 0
3 years ago
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