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2 years ago

Focus Question: How do you determine whether a real-world context should be

Mathematics

1 answer:

Yakvenalex [24]2 years ago

3 0

Answer:

Simplify the equation as closely as possible to the form of y = mx + b. Check to see if your equation has exponents. If it has exponents, it is nonlinear (exponential). If your equation has no exponents, it is linear.

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Solve using demoivres theorem

pashok25 [27]

It's difficult to make out, but I think the task is to expand

$(\sqrt3-i)^4$

Write the number in polar form first:

$\sqrt3-i=2e^{-i\pi/6}$

By DeMoivre's theorem, you have

$(\sqrt3-i)^4=\left(2e^{-i\pi/6}\right)^4=2^4e^{-i4\pi/6}=16e^{-i2\pi/3}$

and converting back to Cartesian form, this number is equivalent to

$16\left(\cos\dfrac{2\pi}3-i\sin\dfrac{2\pi}3\right)=16\left(-\dfrac12+-\dfrac{\sqrt3}2\right)=-8(1+i\sqrt3)$

3 0

2 years ago

What does x/2 + 6 = 7

MaRussiya [10]

Answer:

Step-by-step explanation:

2/2+6=7

8 0

3 years ago

Read 2 more answers

Plsss help meee!!!!!!

Lina20 [59]

Answer:

given below

Step-by-step explanation:

total area = rectangle area + 2 triangle area

= length * width = 2 ( $\frac{1}{2}$ * base * height )

= 7.5 * 6 + 2 ( $\frac{1}{2}$ * 3 * 4 )

= 57 ft²

separate it into two rectangles:

length * width + length * width

6 * 2 + 9 * 4

48 cm²

parallelogram area = base * height

= 20 * 25

= 500 in²

6 0

2 years ago

a girl that is 5ft tall casts a shadow 4ft long. at the same time, a tree casts a shadow 24 ft long. how long is the tree?

taurus [48]

Answer:

25 Feet

Step-by-step explanation:

Im sorry if i am wrong, but it is 25 because the girl is 5 feet, and one feet less of a shadow. So it is obvious to me that the tree is 1 foot larger.

7 0

2 years ago

What is a number increased by 7.9 is 8.3

alexira [117]

First, write an equation

x+7.9= 8.3

Now solve for x.

x=0.4

6 0

3 years ago