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3 years ago

Help!!!!! please!!!!!

Mathematics

2 answers:

Crazy boy [7]3 years ago

8 0

Answer:

108cm $^{3}$ (B)

Step-by-step explanation:

Find the area of the triangle first.

6 * 4 = 24/2 = 12

Multiply by the width.

12 * 9 = 108

UNO [17]3 years ago

8 0

Hey there! :)

Answer:

B. V = 108 cm³.

Step-by-step explanation:

Find the volume of the triangular prism using the formula:

V = 1/2(bh) where b = l × w

Solve for the base:

b = 4 × 9

b = 36 cm²

Plug this into the formula for the volume:

V = 1/2(36 · 6)

V = 1/2(216)

V = 108 cm³. The correct answer is B.

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Consider the equation ay'' + by' + cy = d, where a, b, c, and d are constants. (a) find all equilibrium, or constant, solutions

Orlov [11]

Rewrite equation so that it is homogeneous .
$ay'' +by' + cy = 0$

Solve characteristic equation:
$ar^2 +br + c = 0 \\ \\ r = \frac{(-b) \pm \sqrt{b^2 -4ac}}{2a}$

The solutions to the homogeneous equation are:
$y = k_1 e^{r_1 t} + k_2 e^{r_2 t}$

Finally you need the constant term in "cy" to equal 'd' to satisfy the particular solution.
$y= k_1 e^{r_1 t} + k_2 e^{r_2 t} + \frac{d}{c}$

4 0

3 years ago

Which of the following systems of inequalities represents the graph?

mixer [17]

Answer:

Option D.

Step-by-step explanation:

Consider the below figure attached with this question.

If a line passes through two points $(x_1,y_1)$ and $(x_2,y_2)$ , then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

From the below figure it is clear that the a solid line passes through the points (-2,0) and (0,4). So, the equation of related line is

$y-0=\frac{4-0}{0-(-2)}(x-(-2))$

$y=2(x+2)$

$y=2x+4$

$-2x+y=4$

All area above the solid line is shaded. It means the sign of inequality is ≥.

$-2x+y\geq 4$

From the below figure it is clear that the a dashed line passes through the points (2,0) and (0,2). So, the equation of related line is

$y-0=\frac{2-0}{0-(2)}(x-(2))$

$y=-1(x-2)$

$y=-x+2$

$x+y=2$

All area below the dashed line is shaded. It means the sign of inequality is <.

$x+y$

System of inequality is

$-2x+y\geq 4$

$x+y$

Therefore, the correct option is D.

5 0

3 years ago

Can somebody show the work for the both on a picture or link to a pdf or something?

dalvyx [7]

Answer:

The Answer for part be is 65.5584

Step-by-step explanation:

8 0

3 years ago

You decide you need a new computer. The cost of the computer is $768. However,

igor_vitrenko [27]

Answer:32

Step-by-step explanation:

768/24=32

6 0

4 years ago

You can buy DVDs at a local store for 15.59 each. You can buy them at on online store for 13.99 each plus $6 shipping. How many

dalvyx [7]

Local(L) = 1 x (15.99)
Online(O) = (1 x 13.99) + 6

So use that equation until you find the same number.

L1=15.99
O1=19.99

L2=31.98
O2=33.98

L3=47.97
O3=47.97

And your answer will be three from local and three from online.

8 0

3 years ago