All categories

3 years ago

Please helpplease please

Mathematics

1 answer:

Elza [17]3 years ago

4 0

Answer:

75cm^2

Step-by-step explanation:

The formula for the area of a parallelogram is the same as a rectangle. lw=A

You might be interested in

A baby's t-shirt requires 5/8 yards of fabric. How many t-shirts can be made from 70 yards?

Zielflug [23.3K]

The answer it’s I don’t know

3 0

3 years ago

Read 2 more answers

Write the given differential equation in the form L(y) = g(x), where L is a linear differential operator with constant coefficie

melamori03 [73]

Answer:

The complete solution is

$\therefore y= Ae^{3x}+Be^{-\frac13 x}-\frac43$

Step-by-step explanation:

Given differential equation is

3y"- 8y' - 3y =4

The trial solution is

$y = e^{mx}$

Differentiating with respect to x

$y'= me^{mx}$

Again differentiating with respect to x

$y''= m ^2 e^{mx}$

Putting the value of y, y' and y'' in left side of the differential equation

$3m^2e^{mx}-8m e^{mx}- 3e^{mx}=0$

$\Rightarrow 3m^2-8m-3=0$

The auxiliary equation is

$3m^2-8m-3=0$

$\Rightarrow 3m^2 -9m+m-3m=0$

$\Rightarrow 3m(m-3)+1(m-3)=0$

$\Rightarrow (3m+1)(m-3)=0$

$\Rightarrow m = 3, -\frac13$

The complementary function is

$y= Ae^{3x}+Be^{-\frac13 x}$

y''= D², y' = D

The given differential equation is

(3D²-8D-3D)y =4

⇒(3D+1)(D-3)y =4

Since the linear operation is

L(D) ≡ (3D+1)(D-3)

For particular integral

$y_p=\frac 1{(3D+1)(D-3)} .4$

$=4.\frac 1{(3D+1)(D-3)} .e^{0.x}$ [since $e^{0.x}=1$ ]

$=4\frac{1}{(3.0+1)(0-3)}$ [ replace D by 0 , since L(0)≠0]

$=-\frac43$

The complete solution is

y= C.F+P.I

$\therefore y= Ae^{3x}+Be^{-\frac13 x}-\frac43$

4 0

3 years ago

What is the area of the figure? ○ 45 cm² ○50 cm² ○70 cm² ○90 cm²

anyanavicka [17]

Answer:

third option; 70 cm²

Step-by-step explanation:

Rectangle:

5 x 10 = 50

Triangle:

1/2bh

18 - 10 = 8

1/2 5(8)

1/2 40

Total area:

50 + 20 = 70 cm²

5 0

2 years ago

Read 2 more answers

50 POINTS What are the values of a1 and r of the geometric series? 2 – 2 + 2 – 2 + 2

torisob [31]

Answer:

a1=2 and r=-1

Explanation:

"A geometric series is a series with a constant ratio between successive terms".

Here, we can observe that the first term 'a' is '2'.

And the common ratio 'r' =

Therefore, the first term 'a' is 2 and common ratio 'r' is '-1'.

8 0

3 years ago

Read 2 more answers

A farmer, Mrs. Many, grows and sells two popular varieties of tomatoes: Better Boy tomatoes and Big Beef tomatoes. Both varietie

kifflom [539]

Answer:

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers