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lisov135 [29]
3 years ago
14

Please help! This is really important. Don't steal my points by commenting random stuff, this isn't funny its a grade. I worked

for my points so work for yours.

Mathematics
1 answer:
vodomira [7]3 years ago
4 0

Answer:

D

Step-by-step explanation:

We can tell that the final number must be -2 from the graph. This means we can cross off A and C. We can also tell that 2/3 must be negative since the graph curves downwards.

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What is the number three thousand eighty expressed in scientific notation?
valentinak56 [21]

Answer:

3.08 x 10^{3}

Step-by-step explanation:

3080 = 3.08 x 1000 = 3.08 x 10^{3}

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tickets for the school play sell for $4 each. Which graph shows the relationship between the number of tickets sold (x) and the
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3 years ago
Read 2 more answers
Determine the roots of f(x) = -12-2.1x+18x^2-2.75x^3 graphically. in addition, determine the first root of the function with
vesna_86 [32]

The given function is that is a cubic polynomial

f(x)=-12-2.1x+18x^2-2.75x^3

when arranged in descending order that is from highest degree to lowest degree

f(x)=-2.75x^3+18x^2-2.1x-12

Since it is a three degree polynomial it has three roots.

According to rational root theorem , the possible roots of the above expression that is factors of  \frac{12}{2.75}=\frac{48}{11}  are \pm1, \pm 2, \pm 3, \pm 4, \pm 6, \pm 8, \pm 12, \pm 24, \pm 48, \pm\frac{1}{11}, \pm\frac{2}{11}, \pm\frac{3}{11}\pm\frac{4}{11}\pm\frac{6}{11},\pm\frac{8}{11},\pm\frac{12}{11}, \pm\frac{24}{11},\pm\frac{48}{11}

As you can see from the graph all roots of this polynomial are real.

The smallest positive root is 0.954 and smallest negative root are -0.724.

4 0
3 years ago
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