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3 years ago

Can i plz have some help with this

Mathematics

2 answers:

inysia [295]3 years ago

6 0

Answer:

320 in

Step-by-step explanation:

Anni [7]3 years ago

5 0

<h3>Answer: 400 </h3>

===================================================

Work Shown:

A = area of parallelogram

A = base*height

A = 20*16

A = 320

B = area of triangle at the very top

B = (1/2)*base*height

B = (1/2)*20*8 ... note: opposite sides of parallelogram are equal

B = 80

C = total area of entire figure

C = A+B

C = 320+80

C = 400

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e-lub [12.9K]

Answer:

a number, t, increased by 23

a number, t, plus 23

Step-by-step explanation:

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2 years ago

Geometry 10 long 2.75 wide triangle what is the area?

VladimirAG [237]

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2 years ago

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sertanlavr [38]

Answer:

cos B= 7/25

tan B = 24/7

sin B = 24/25

Step-by-step explanation:

cos B= adjacent/hypotenuse = 7/25

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3 years ago

Problem1 The behavior of a physical system can be described by the following first order differential equation: dy/dt=2y +t^2

daser333 [38]

Answer:

$y = \dfrac{t^3e^{2t}}{3}+Ce^{2t}$ .

Step-by-step explanation:

Using first order linear differential equation:

$\dfrac{\mathrm{d} y}{\mathrm{d} t} = 2y + t^2$

$\frac{\mathrm{d} y}{\mathrm{d} t} - 2y =t^2$

finding integrating factor:

I.F = $e^{\int -2dt}$

I.F = $e^{-2t}$

now,

$y = \dfrac{1}{IF}(\int t^2dt+ c )$

$y = \dfrac{1}{e^{-2t}}(\int t^2dt+ c )$

$y = \dfrac{t^3e^{2t}}{3}+Ce^{2t}$

hence the solution is

$y = \dfrac{t^3e^{2t}}{3}+Ce^{2t}$

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3 years ago

A wagon is on sale for 20% off. The sale price of the wagon is $114. What was the original price of the wagon, assuming no sales

Sphinxa [80]

The 114 represents 80% of the total price before the sale. You would set up your equation as

Cost Price * 80% = Sale Price.

Sale Price = 114

80% = 80/100 = 0.8

Cost Price = 114/0.8

Cost Price = 142.50 which is the price before the deduction. You can confirm this by taking 20% of 142.50 and subtracting it form 142.50

20% * 142.50

20/100 * 142.50

2850/100

28.50

Now subtract 28.50 from 142.50

142.50 - 28.50 = 114 which is just what you might expect.

5 0

3 years ago

Read 2 more answers