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3 years ago

If P 0. P+q =r which statement about R is true lRl=lql R>0 R lQl

Mathematics

1 answer:

Neko [114]3 years ago

6 0

Answer:

R>0

Step-by-step explanation:

I cant tell what R lQl and lRl = lql is

But r will equal q and if q is a positive number it will be more then zero if q is negative then it will be less then zero

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On a recent day a Euro was equal to about 1.2 American dollars. Write an expression which estimates the number of dollars in x E

JulsSmile [24]

Answer:

d = 1.2e

30 dollars

Step-by-step explanation:

To write an expression, define the variables. E will be the number of euros and d will be dollars.

"Euro was equal to about 1.2 American dollars" is one euro equals 1.2 and two euros equals 2.4. So the expression is d = 1.2e.

This means if I have 1 euro, I have 1.2*1 = 1.2 dollars. If I have 2 euros, I have 1.2*2 = 2.4 dollars.

If I have 25 euros then d = 1.2*25 = 30 dollars.

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4 years ago

What is the equation of a vertical line passing through the point (-4, 7)?

Marysya12 [62]

Answer:

Step-by-step explanation:

vertical line is parallel to y-axis so its equation is always x = x₀

at any given point we have coordinates: (x₀, y₀)

given point (-4, 7) means x₀ = -4

so the equation of a vertical line passing through the point (-4, 7) is x=-4

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3 years ago

A bag contains white marbles and red marbles, 16 in total. The number of white

Sonbull [250]

Answer:

Step-by-step explanation:

Let's call the white marbles w and the red marbles r. We can write:

w + r = 16 (1)

w = 3r - 4 (2)

3r - 4 + r = 16 (3) (Substitute (2) into (1))

4r = 20 (simplify)

r = 5 (divide by 4) which means w = 16 - 5 = 11

4 0

3 years ago

Two friends share 7 cookies how many cookies do each of them get

Goshia [24]

Answer:

3.5 cookies

Step-by-step explanation:

Hi there!

Well, assuming they get the same amount of cookies, you'd do 7/2..

7/2=3.5

So they'd each get 3.5 cookies.

Have a great day! ^u^

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3 years ago

Given the following signal:  x(n) = {4, −1, 2, 5, − 2, 3}  Compute the 6-point DFT of x(n) directly from the DFT equation  −

FrozenT [24]

Answer:

Computing the 6-Point DFT of x(n), where X = 0,1,2,3,4,5

x(0) = 11

x(1) = 21/8 -j13/8

x(2) = 27/8 + j33/32

x(3) = 1139/256 + j91/256

x(4) = 4389/1024

x(5) = 4.14685 - j1379/8192

Step-by-step explanation:

See the picture for workings.

Given X(n) = { 4, -1, 2, 5, -2, 3}

Six point DFT implies that N = 6

Step 1 = write out equation X(k)

Step 2 = substitute "Wn" in the equation X(k) to give a new equation

Step 3 = when N=6, substitute for "N" in the new equation and simplify the new X(k) equation.

Step 4 = use 0, 1, 2, 3, 4, 5 in finding the DFT

4 0

3 years ago