Determine if the set of numbers is in order from least to greatest. Explain. -5,3,-3,1,0

-13/28+17/20 give answer as a reduced proper or improper fraction

Kay [80]

13/28+17/20=−13/28+17/20=27/70

6 0

3 years ago

34 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of 25.9 pounds and a

WINSTONCH [101]

Answer:

24.6 < μ < 27.2

Step-by-step explanation:

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

$\alpha = \frac{1-0.95}{2} = 0.025$

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

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96\frac{3.8}{\sqrt{34}} = 1.3$

The lower end of the interval is the sample mean subtracted by M. So it is 25.9 - 1.3 = 24.6 pounds.

The upper end of the interval is the sample mean added to M. So it is 25.9 + 1.3 = 27.2 pounds.

So the correct answer is:

24.6 < μ < 27.2

7 0

2 years ago

What is the area of this triangle? Please- I stink at Geometry

damaskus [11]

Answer:

Step-by-step exbgvgcvplanation:

-by-step exbgvgcvplanation:

4 0

2 years ago

21, Given: AC=FC, CB = CD<br> Prove:

neonofarm [45]

Answer:

in triangle ACD and BCE

AC = EC

angle ACD = angle ECB ( COMMON ANGLE).

CB = CD

BY side and side criteria

triangle ACD is congruent to triangle BCE

so angle a is congruent to angle E

hence, proved

5 0

1 year ago

Sketch the graph or the inverse of the function pictured

S_A_V [24]

Step 1:

Draw the table for the input x and output y.

Step 2:

From the table, we can see that the function is an exponential function.

$\begin{gathered} y=x^2 \\ \text{for x = 0, y = 0} \\ \text{for x = 1, y = 1} \\ \text{for x = 2, y = 4} \\ \text{for x = 3, y = 9} \\ \text{Hence, y = x}^2 \end{gathered}$

Step 2:

Find the inverse of the function.

$\begin{gathered} y=x^2 \\ \text{The inverse of } \\ y=x^2 \\ is \\ y\text{ = }\pm\sqrt[]{x} \end{gathered}$

Step 3:

The two graphs below, show the graph of the inverse for both negative and positive square roots of x.

$\text{The blue graph above shows the graph for y = +}\sqrt[]{x}$

$\text{The blue graph above shows the graph of y = -}\sqrt[]{x}$

Final answer

The blue graph is the inverse of the red graph.

4 0

1 year ago