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3 years ago

HELP ME PLZ LOOK AT PIC. AND FOR YOU PEOPLE WHO REPORT ME U SUCK

Mathematics

2 answers:

olga nikolaevna [1]3 years ago

7 0

Answer: i think its a i think so dont report me if im wrong

Step-by-step explanation:

dybincka [34]3 years ago

5 0

Could be B)
hope this helps :)

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Use the following graph of the function f(x) = −3x4 − x3 + 3x2 + x + 3 to answer this question: What is the average rate of chan

Alinara [238K]

the average rate of change is just the slope from (0,f(0)) to (1,f(1))

find f(0) and f(1)

$f(0)=-3(0)^4-(0)^3+3(0)^2+0+3=3$

$f(1)=-3(1)^4-(1)^3+3(1)^2+1+3=-3-1+3+1+3=3$

slope from (0,3) to (1,3) is rise/run=(3-3)/(0-1)=0/-1

the average rate of change from x=0 to x=1 for f(x) is 0

6 0

3 years ago

Given the position of the particle, what the position(s) of the particle when it’s at rest

choli [55]

The position function of a particle is given by:

$X\mleft(t\mright)=\frac{2}{3}t^3-\frac{9}{2}t^2-18t$

The velocity function is the derivative of the position:

$\begin{gathered} V(t)=\frac{2}{3}(3t^2)-\frac{9}{2}(2t)-18 \\ \text{Simplifying:} \\ V(t)=2t^2-9t-18 \end{gathered}$

The particle will be at rest when the velocity is 0, thus we solve the equation:

$2t^2-9t-18=0$

The coefficients of this equation are: a = 2, b = -9, c = -18

Solve by using the formula:

$t=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}$

Substituting:

$\begin{gathered} t=\frac{9\pm\sqrt[]{81-4(2)(-18)}}{2(2)} \\ t=\frac{9\pm\sqrt[]{81+144}}{4} \\ t=\frac{9\pm\sqrt[]{225}}{4} \\ t=\frac{9\pm15}{4} \end{gathered}$

We have two possible answers:

$\begin{gathered} t=\frac{9+15}{4}=6 \\ t=\frac{9-15}{4}=-\frac{3}{2} \end{gathered}$

We only accept the positive answer because the time cannot be negative.

Now calculate the position for t = 6:

$undefined$

6 0

1 year ago

a small town has about 8000. a random sample of 100 people finds out that 50 are in favor of renovating some of the towns rundow

hodyreva [135]

Answer:

4000

Step-by-step explanation:

Out of their sample half of the people are in favor meaning that half of the total are also in favor and half of 8000 is 4000

I hope this helps and please don't hesitate to ask if there is anything still unclear!

3 0

3 years ago

Pleasee help.If anyone know 12th grade math...Please help any kind hearted ones out there

Sidana [21]

Answer:

m>7 = 142°

Step-by-step explanation:

m>6 = 38°

180° - 38° = 142°

m>7 = 142°

3 0

3 years ago

What is the lowest value in the set of data represented by the following box-and-whisker plot?

Sever21 [200]

D.11.5 because when you bring the line and the dot it is 11.5

8 0

3 years ago

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