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3 years ago

5

the distribution of the diameters of douglas fir trees in a plot of national forest land is approximately normal with a standard

deviation of 1.6 inches. how does the diameter of a douglas fir tree in the 28th percentile compared with the mean diameter

1 answer:

V125BC [204]3 years ago

8 0

Answer:

1.0

Step-by-step explanation:

this is a aplication of the terms

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Solve the system by substitution

kramer

Answer:

The solution to the system of equations be:

$x=3,\:y=-2$

Step-by-step explanation:

Given the system of equations

4x-2y = 16

y = -5x+13

Solving the system of equations using the substitution method

$\begin{bmatrix}4x-2y=16\\ y=-5x+13\end{bmatrix}$

Substitute y = -5x+13 in 4x-2y = 16

$4x-2\left(-5x+13\right)=16$

$4x+10x-26 = 16$

$14x-26 = 16$

Now isolate x for $14x-26 = 16$

$14x-26=16$

Add 26 to both sides

$14x-26+26=16+26$

Simplify

$14x=42$

Divide both sides by 14

$\frac{14x}{14}=\frac{42}{14}$

Simplify

$x=3$

For y = -5x+13

Substitute x = 3

$y=-5\cdot \:3+13$

Simplify

$y=-2$

Therefore, the solution to the system of equations be:

$x=3,\:y=-2$

6 0

2 years ago

Elow is a bus schedule to New York from your town. You want to spend the least amount of time on the bus. Which is the best rout

dalvyx [7]

I think route 3 c not sure tho

5 0

3 years ago

Read 2 more answers

As mush as you can 10 points

kotykmax [81]

24)you add 5a with 5a and then 6 and 4 an and your answer will be -11 -(10a+10)

6 0

3 years ago

Read 2 more answers

1/2(2.1)(3.5+5.7) Whats the answer please show work

Zepler [3.9K]

1/2(2.1)(3.5+5.7)

1.05(3.5+5.7)

(1.05)(9.2)

=9.66

I hope that's help.

6 0

3 years ago

The area of a rectangle is square cm. Find the possible dimensions of the figure, in cm.

iogann1982 [59]

Answer:

(x-1)(8x-3)

Step-by-step explanation:

$8x^2 - 3x -8x + 3$

Area of the rectangle is length * width

To find the possible dimension we need to factor the given area

the first parenthesis is length and second parenthesis is width

LEts factor $8x^2 - 3x -8x + 3$

We use grouping method

$(8x^2 - 3x)+(-8x + 3)$

Take out GCf from each group

$x(8x- 3)-1(8x -3)$

(x-1)(8x-3)

4 0

3 years ago