Select the correct answer.
Brent works part-time at a clothing store. He earns an hourly wage of $15. If he needs to earn more than $45 in a day and works for x hours a day, which inequality represents this situation?
A.
15x > 45
B.
15x < 60
C.
x > 60
D.
15x < 45
E.
x < 60

Answer:

Hypothesis test conclusion , average salary  ≠ 15

Step-by-step explanation:

Null Hypothesis [H0] : Average Salary = 15  

Alternate Hypothesis [H1] : Average Salary ≠ 15

t = (x bar - μ) ÷ (s / √[n])

Sample Mean [x bar] = 16 , Population Mean [μ] = 15 , Standard Deviation [s] = 2.80 , [Sample number] n = 30

t = (16 - 15) / (2.80 / 5.47)

t = 1 / 0.5

t = 2

As calculated value ie 2 > tabulated critical value ie 1.96 , at significance level 0.05. So, we reject the Null Hypothesis.

Hence, as per Alternate Hypothesis, average salary  ≠ 15

Answer:

A. She will have $2 left over

Step-by-step explanation:

I know this because 3 yards of fabric cost $18 dollars so there would be $2 left

Answer:

the second angle

sorry if wrong

Step-by-step explanation:

9514 1404 393

Answer:

  C.  (-1, 2) and (4, 7)

Step-by-step explanation:

It may be simplest just to try the answer choices.

We notice that y = x+3 is not satisfied by the points in choices A or D, so those can be eliminated.

__

The second equation can be written in vertex form as ...

  y = (x -1)^2 -2

This equation is not satisfied by the points of choice B.

  Using (-1, 4) (from choice B), we get 4 = (-1-1)^2 -2 = 4-2 = 2 . . . FALSE.

However it is a good match for the points of choice C.

  Using (-1, 2) (from choice C), we get 2 = (-1-1)^2 -2 = 4 -2 = 2 . . . True

The appropriate choice is ...

  (-1, 2) and (4, 7)

Answer:

B) 80 miles

Step-by-step explanation:

Answer:

80 mlies,

Step-by-step explanation:

how I got it. 24÷3 hours is 8miles per hour multiple by 10=80miles

Answer:

Width just means, diameter.

Step-by-step explanation:

Given:

The vertices of the parallelogram RSTU are R(-4,4), S(2,6), T(6,2) and U(0,0).

To find:

The perimeter of parallelogram RSTU, rounded to the nearest whole number.

Solution:

Distance formula:

[tex]D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Using the distance formula, we get

[tex]RS=\sqrt{(2-(-4))^2+(6-4)^2}[/tex]

[tex]RS=\sqrt{(6)^2+(2)^2}[/tex]

[tex]RS=\sqrt{36+4}[/tex]

[tex]RS=\sqrt{40}[/tex]

[tex]RS=6.32[/tex]

Similarly,

[tex]ST=\sqrt{\left(6-2\right)^2+\left(2-6\right)^2}[/tex]

[tex]ST\approx 5.66[/tex]

[tex]TU=\sqrt{\left(0-6\right)^2+\left(0-2\right)^2}[/tex]

[tex]TU\approx 6.32[/tex]

[tex]RU=\sqrt{\left(0-\left(-4\right)\right)^2+\left(0-4\right)^2}[/tex]

[tex]RU\approx 5.66[/tex]

Now, the perimeter of the parabola is:

[tex]P=RS+ST+TU+RU[/tex]

[tex]P=6.32+5.66+6.32+5.66[/tex]

[tex]P=23.96[/tex]

[tex]P\approx 24[/tex]

The perimeter of the parallelogram RSTU is 24 units.

Therefore, the correct option is C.

Note: Unit of perimeter cannot be in square.

Answer:

Hello! answer: x = 68

Hope this helps!

Answer:

x = 68⁰

Step-by-step explanation:

112+112+68+x = 360 (Theorem - The sum of the internal angles of a square is 360.)

292⁰+x = 360⁰

x = 360⁰ - 292⁰

x = 68⁰

Answer:

189 components must be sampled.

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 - 0.99}{2} = 0.005[/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 - 0.005 = 0.995[/tex], so Z = 2.575.

Now, find the margin of error M as such

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

Assume that component lifetimes are normally distributed with population standard deviation of 16 hours.

This means that [tex]\sigma = 16[/tex]

How many components must be sampled so that a 99% confidence interval will have margin of error of 3 hours?

n components must be sampled.

n is found when M = 3. So

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

[tex]3 = 2.575\frac{16}{\sqrt{n}}[/tex]

[tex]3\sqrt{n} = 2.575*16[/tex]

[tex]\sqrt{n} = \frac{2.575*16}{3}[/tex]

[tex](\sqrt{n})^2 = (\frac{2.575*16}{3})^2[/tex]

[tex]n = 188.6[/tex]

Rounding up:

189 components must be sampled.

Answer:

Un barco realiza un crucero que visita 5 puertos uno por semana si el último Puerto visitado fue el 18 de agos… Recibe ... un barco realiza un crucero que visita 5 puertos uno por semana si el último Puerto visitado fue el 18 de agosto en qué fecha llegó el segundo Puerto visitado. 1 ... 35 dias de viaje

Answer:

P(A and B) = 0.44

Step-by-step explanation:

Venn probabilities:

Suppose that we have two events, A and B. The probability of A and B is:

[tex]P(A \cap B) = P(A) + P(B) - P(A \cup B)[/tex]

In which [tex]P(A \cup B)[/tex] is P(A or B).

In this question:

[tex]P(A) = 0.53, P(B) = 0.39, P(A \cup B) = 0.48[/tex]

Then

[tex]P(A \cap B) = P(A) + P(B) - P(A \cup B) = 0.53 + 0.39 - 0.48 = 0.44[/tex]

So

P(A and B) = 0.44

Answer:

Gretchen charges $12 dollars per hour

Step-by-step explanation:

$18/1.5=$12

Answer:

p=36

Step-by-step explanation:

3(6*2)=p  

 3(12)=p

  36=p

Sorry if its hard to understand I'm new to anwering questions on brainly

Answer:

Actually, all of them!

Hope that helps! :)

-Aphrodite

Step-by-step explanation:

Answer:

Step-by-step explanation:

4). Given functions are,

   [tex]f(x)=\frac{1}{3x}[/tex]

   For [tex]x=\frac{1}{12}[/tex]

   [tex]f(\frac{1}{12})=\frac{1}{3(\frac{1}{12})}[/tex]

             [tex]=\frac{1}{\frac{1}{4}}[/tex]

             [tex]=1\times\frac{4}{1}[/tex]

             [tex]=4[/tex]

   [tex]g(x)=\frac{1}{x^2}[/tex]

   For [tex]x=\frac{1}{5}[/tex],

   [tex]g(\frac{1}{5})=\frac{1}{(\frac{1}{5})^2}[/tex]

           [tex]=\frac{1}{\frac{1}{25}}[/tex]

           [tex]=25[/tex]

  [tex]f(\frac{1}{12})-g(\frac{1}{5})=4-25[/tex]

                       [tex]=-21[/tex]

5). f(x) = -2x² + 3x - 8

    f(k + 4) = -2(k + 4)² + 3(k + 4) - 8

                = -2(k² + 8k + 16) + 3(k + 4) - 8

                = -2k² - 16k - 32 + 3k + 12 - 8

                = -2k² - 13k - 28

The series of numbers is adding 5 and then subtracting 2

20+5=25

25-2=23

23+5=28

28-2=26

and so on. Do you understand?

Answer:

The answer should be 84

Step-by-step explanation:

12 - 4 = 8

8 + 4 = 12

8 - 4 = 4

Hopefully this helps :3 sorry if wrong :( plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

Answer:

y=3.5x+9

and

y=x

Answer:

A, B, and E.

Step-by-step explanation:

We know that one vertex is at (5, 4), and each side of our square is 3 units long.

Then the distance between the known vertex and another vertex is 3 units (if those vertexes are connected by a side of the square) or (√2)*3  units (if those vertexes are connected by the diagonal of the square).

Also remember that the distance between two points (a, b) and (b, c) is:

distance = √(  (a - c)^2 + (b - d)^2)

So we need to find the distance between our point and all the ones given in the options:

A) the distance between (5, 4) and (5, 1) is:

distance = √( (5 - 5)^2 + (4 - 1)^2) = 3

Then point (5, 1) can be a vertex.

B) The distance between (5, 4) and (5, 7) is:

distance = √( (5 - 5)^2 + (4 - 7)^2) = 3

Then (5, 7) can be a vertex.

C)  The distance between (5, 4) and (7, 8) is:

distance = √( (5 - 7)^2 + (4 - 8)^2) = √( 2^2 + 4^2) = √20

Point (7, 8) can not be a vertex.

D)  The distance between (5, 4) and (2, 6) is:

distance = √( (5 - 2)^2 + (4 - 6)^2) = √( 3^2 + 2^2) = √13

Point (2, 6) can not be a vertex.

E) The distance between (5, 4) and (2, 1) is:

distance = √( (5 - 2)^2 + (4 - 1)^2) = √( 3^2 + 3^2) = √18 = √(2*9) = √2*√9 = √2*3

Then point (2, 1) can be a vertex.

The transformation of a function may involve any change. The correct option is D.

The transformation of a function may involve any change.

Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretched (multiplying outputs or inputs) etc.

If the original function is y = f(x), assuming horizontal axis is input axis and vertical is for outputs, then:

Horizontal shift (also called phase shift):

Vertical shift:

Stretching:

The given function f(x)=x² is transformed to h(x)=(1/8)x^2-13, therefore, the graph or f(x) is horizontally stretched by a factor of 8 and shifted 13 units to the right.

Hence, the correct option is D.

Learn more about Transforming functions:

https://brainly.com/question/17006186

#SPJ1

Answer:

A.the graph of f(x) is vertically compressed by a factor of 8 and shifted 13 units to the right

Answer:

44

Step-by-step explanation:

axb=56

56-c=44

Answer:

If a coin is tossed 12 times, the maximum probability of getting heads is 12. But, 12 coin tosses leads to 212 , i.e. 4096 number of possible sequences of heads & tails.

Step-by-step explanation:

Answer:

8/13

Step-by-step explanation:

Pam flips a coin 12 times. The coin lands on heads 8 times. What is the theoretical

probability of landing on heads on the next flip?

well it would be 8 and 13

Answer:

660

Step-by-step explanation:

First I found principal and then I added Interest and principal.At last I got sum as 660

Answer:

5 veces.

Step-by-step explanation:

9 x 9 x 9 x 9 x 9 = 45

Answer:

Same! This also happened to me, thank you for sharing this message so everyone knows!

Step-by-step explanation: