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2 years ago

Quick Question: did I do this right?

Mathematics

2 answers:

Akimi4 [234]2 years ago

3 0

Answer:

Yes

Step-by-step explanation:

I think it looks right I hate when teacher give you work but no telling you how to do it

Alekssandra [29.7K]2 years ago

3 0

I do not know the answer but I need points so sorry I hope someone go see the very end soon sorry I can I help you today honey points points points points points points points I dondvdjdjd do jcxjckx

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Write a rule for the given transformation. PLEASE HELP a. rotation 180° about the origin b. translation (x,y) -> (x +6, y+2)

Serggg [28]

Answer:

thank you so much for free points

and I don't know the answer but really sorry I don't want to ask some questions on this that's why I did this and thank you for free points

5 0

3 years ago

Ex 2.8 3. find the maximum value of y for the curve y=x^5 -3 for -2≤x≤1

harkovskaia [24]

$y=x^5-3\\ y'=5x^4\\\\ 5x^4=0\\ x=0\\ 0\in [-2,1]\\\\ y''=20x^3\\\\
y''(0)=20\cdot0^3=0$

The value of the second derivative for $x=0$ is neither positive nor negative, so you can't tell whether this point is a minimum or a maximum. You need to check the values of the first derivative around the point.
But the value of $5x^4$ is always positive for $x\in\mathbb{R}\setminus \{0\}$ . That means at $x=0$ there's neither minimum nor maximum.
The maximum must be then at either of the endpoints of the interval $[-2,1]$ .
The function $y$ is increasing in its entire domain, so the maximum value is at the right endpoint of the interval.

$y_{max}=y(1)=1^5-3=-2$

4 0

3 years ago

6. Find the slope of the given points (3,4) and (7,-4).

Grace [21]

Answer:

-2, C

Step-by-step explanation:

Use the formula: (y2-y1)/(x2-x1)

Substitute the numbers:

(4-(-4)) / (3-7)

=8 / -4

= -2

The slope is -2, or C

7 0

3 years ago

Read 2 more answers

(15. Construct Arguments is 0.3 exponent 4 equal to 0.9 exponent 2? Explain.

padilas [110]

No.
0.3^4 or 0.3x0.3x0.3x0.3= 0.0081
0.9^2 or 0.9x0.9=0.81
These are not equivalent.

5 0

2 years ago

Almost all companies utilize some type of year-end performance review for their employees. Human Resource (HR) at a university's

balu736 [363]

Answer:

The Answer is 76.

Step-by-step explanation:

Given the normal distribution " 10% of employees (rated) exemplary, 20% distinguished, 40% competent, 20% marginal, and 10% unacceptable'', we can see that exemplary employees are top 10% rated employees.

We have the formula for normal distribution:

z=(X-M)÷σ

where z is the minimum z-score for top 10% employee, X is the minimum score for top 10% employee, M is the mean of the score distribution, σ is the standard deviation of the score distribution.

The z-score we are looking for is the value "a" that separates the highest 10% from the lowest 90% i.e. P(z≤a)=0.90

If we look at z-table, corresponding value for a is 1.28155

We can now put the values in the formula:

1.28155= $\frac{X-50}{20}$

So X=(1.28155×20)+50=75.631

Therefore minimum score for exemplary employee is 76.

3 0

2 years ago