please answer with explanation

Answer:

17

Step-by-step explanation:

3(-2)^2 - 2(-2) + 1

12 - 2(-2) + 1

12 + 5

17

Answer:

f(-2) = 3(-2)² - 2(-2) + 1 = 17

Step-by-step explanation:

f(x) = 3x² - 2x + 1

f(-2) = 3(-2)² - 2(-2) + 1

= 3 × 4 + 4 + 1

= 12 + 5

f(-2) = 17

Thus, f(-2) = 3(-2)² - 2(-2) + 1 = 17

-TheUnknownScientist

Answer:

Q + 601 = -104

Subtract 601 from both sides

Q = -705

Answer:    -705

Step-by-step explanation:

q+601=-104

q=-104-601

q=-705

Answer:

25 winners

Step-by-step explanation:

Answer:

$753.34

Step-by-step explanation:

trust me it is $753.34

Answer:

Less

Step-by-step explanation:

Answer:

2500+6% per year for 3 years would be 2950.

Answer:

triangle and cylinder is your answer

Answer:

Personification is your answer.

Hope it helps!!!

Answer:

the probability is 0.0378

Step-by-step explanation:

 Given that;

cumulative distribution function: F (x ) = 1 - ( 1 / ( x + 1)³ )

probability the person's reaction time will be between 0.9 and 1.1 seconds will be;

p( 0.9 < x < 0.9 ) = F( 1.1 ) - F( 0.9 )

p( 0.9 < x < 0.9 ) = [1 - ( 1 / ( 1.1 + 1)³ )] - [1 - ( 1 / ( 0.9 + 1)³ )]

= [1 - ( 1 / ( 2.1)³ )] - [1 - ( 1 / ( 1.9)³ )]

= [1 - 0.107979] - [1 - 0.14579]

= 0.8920 - 0.8542

= 0.0378

Therefore, the probability is 0.0378

Answer:

A sample size of 385 is needed.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

You feel that a reasonable estimate of the standard deviation is 10.0 hours.

This means that [tex]\sigma = 10[/tex]

What sample size is needed so that the expected margin of error of your estimate is not larger than one hour for 95% confidence?

A sample size of n is needed. n is found when M = 1. So

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]1 = 1.96\frac{10}{\sqrt{n}}[/tex]

[tex]\sqrt{n} = 1.96*10[/tex]

[tex](\sqrt{n})^2 = (1.96*10)^2[/tex]

[tex]n = 384.16[/tex]

Rounding up:

A sample size of 385 is needed.

Answer:

It's C

Step-by-step explanation:

The directions explain what the teacher is thinking (the way they tell us to do the test without saying it). Directions are good because you can reread them in case your forgot :-/

Answer:

chicken

Step-by-step explanation:

Answer:

ID-=35'-

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

3 is half of 6 and 6 is the total of that line

3 is also the radius of the circle

Answer: 4, 4

Step-by-step explanation: this is on g.oo.g.le

Answer:

0, negative infinity

Answer:

a. use a computer program to select the locations have a rewards program and those that don't.

Step-by-step explanation:

Randomization refers to an important statistical procedure used to eliminate bias in a study. With randomization, all subjects in the study possess equal chances of being selected. In the study scenario described above, randomly choosing half of their total location to partake in the reward program would involve the use of a technique which isn't liable of introducing bias into the study either deliberately or systematically. The use of store managers or other human in the selection process won't be totally convincing at preventing bias. Hence, a computer program will do.

A large firm that has a chain of the grocery stores has implemented a reward member program to increase the visits of patrons. In order to check this, they test the same at 60 different locations.  

Hence the option is A is correct.

Learn more about the firm that owns a chain of grocery stores wanted to see.

brainly.com/question/12385859.

Answer:

yo bro idek bro, gimme brainliest

Step-by-step explanation:

Answer:

-6x+4

Step-by-step explanation:

y-intercept is at 4 which is b.

It goes down 6 units as it decreases from 4 to -2.

Since it decreases 6 is negative

therefore -6x+4

Answer:

The average value of g is:

[tex]\displaystyle g_{ave}=\frac{1}{6}e^6-\frac{49}{6}\approx 59.071[/tex]

Step-by-step explanation:

The average value of a function is given by the formula:

[tex]\displaystyle f_{ave}=\frac{1}{b-a}\int_a^b f(x)\, dx[/tex]

We want to find the average value of the function:

[tex]g(x)=e^{3x-3}-4x[/tex]

On the interval [1, 3].

So, the average value will be given by:

[tex]g_{ave}=\displaystyle \frac{1}{3-1}\int_1^3 e^{3x-3}-4x\, dx[/tex]

Simplify. We will also split the integral:

[tex]\displaystyle g_{ave}=\frac{1}{2}\left(\int_1^3e^{3x-3}\, dx-\int _1^3 4x\, dx\right)[/tex]

We can use u-substitution for the first integral. Letting u = 3x - 3, we acquire:

[tex]\displaystyle u=3x-3\Rightarrow du = 3\, dx\Rightarrow \frac{1}{3} du=dx[/tex]

We will also change the limits of integration for our first integral. So:

[tex]u(1)=3(1)-3=0\text{ and } u(3)=3(3)-3=6[/tex]

Thus:

[tex]\displaystyle g_{ave}=\frac{1}{2}\left(\frac{1}{3}\int_0^6 e^{u}\, du-\int _1^3 4x\, dx\right)[/tex]

Integrate:

[tex]g_{ave}=\displaystyle \frac{1}{2}\left(\frac{1}{3}e^u\Big|_0^6-2x^2\Big|_1^3\right)[/tex]

Evaluate. So, the average value of g on the interval [1, 3] is:

[tex]\displaystyle g_{ave}=\frac{1}{2}\left(\frac{1}{3}\left[e^6-e^0\right]-\left[2(3)^2-2(1)^2\right]\right)[/tex]

Evaluate:

[tex]\displaystyle\begin{aligned} g_{ave}&=\frac{1}{2}\left(\frac{1}{3}(e^6-1)-16\right)\\&=\frac{1}{2}\left(\frac{1}{3}e^6-\frac{1}{3}-16\right)\\&=\frac{1}{6}e^6-\frac{49}{6}\approx59.071\end{aligned}[/tex]

Hi there!

[tex]\large\boxed{cos(\frac{\theta}{2} )= \frac{3}{\sqrt{7}}}[/tex]

[tex]\large\boxed{tan(\frac{\theta}{2}) = \frac{\sqrt{5}}{3}}[/tex]

Begin by recalling that:

sin(θ) = O/H,  so:

Opposite side = 3√5

Hypotenuse = 7

We can solve for the adjacent sign using the Pythagorean Theorem:

7² = (3√5)² + b²

49 = 45 + b²

b² = 4

b = 2.

Thus, cosθ = 2/ 7

Use the half angle identity to solve for cos(θ/2):

cos(θ/2) = √(1 + cosθ)

Plug in the value of cosθ:

= √(1 + 2/7) = √9/7, or 3 /√7

Thus:

[tex]cos(\frac{\theta}{2}) = \frac{3}{\sqrt{7}}[/tex]

Calculate tan(θ/2) using the same process but with a different formula:

tan(θ/2) = √(1 - cosθ / 1 + cosθ)

Substitute in the value of cosθ:

tan(θ/2) = √(1 - 2/7)/(1 + 2/7)

= √(5/7)/(9/7) = √5/9 = √5/3

Answer:

(3,4)

Step-by-step explanation:

Answer:

65536

Step-by-step explanation:

(4^3)^2×4^2

4^6×4^2

4^8

65536

Answer:

y = [tex]-2^x[/tex]

Step-by-step explanation:

If the equation of a function is in the form of y = h(x)

When the graph of this function is reflected across x-axis,

Transformed function will be,

y = -h(x)

Further reflected across y-axis, then the transformed function will be,

y = -h(-x)

By this rule,

Given equation when reflected across x-axis,

y = [tex]-(\frac{1}{2})^{x}[/tex]

Further reflected across y-axis,

y = [tex]-(\frac{1}{2})^{-x}[/tex]

y = [tex]-(2^{-1})^x[/tex]

y = [tex]-2^x[/tex]

Answer:

No, the sum of the two smaller sides must be greater than the longer side.

In this case this would be just a straight line.

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

The given lengths won't form a triangle. The sum of the 2 smaller sides should be greater (not equal too) than the longest side.

so, the longest side her is 12ft

so the smaller sides are 4ft, and 8ft.

the sum of this two sides is 12ft which same as longest side (not greater)...

so it won't form a triangle, here it will just form points on lines.

Answer:

divide 4 by 204 and that's your answer

Answer:

S^2 = sample variance

x_i = the value of the one observation

\bar{x} = the mean value of all observations

n = the number of observations

Step-by-step explanation:

In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its mean. In other words, it measures how far a set of numbers is spread out from their average value.

hope i helped:)

Answer:

5

Step-by-step explanation:

Answer:

A,D,E, and F

Step-by-step explanation:

They all equal -1/4.