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Kryger [21]
2 years ago
6

The number positioned at point E is...

Mathematics
2 answers:
Lilit [14]2 years ago
7 0

Answer:4 and a half

Step-by-step explanation:

4 and a half

larisa [96]2 years ago
4 0
Answer : 4 1/2

explanation - 4 and a half
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Solve for m. F=1/2 mr
algol [13]

Answer:

2F /r = m

Step-by-step explanation:

F=1/2 mr

Multiply each side by 2

2F = 2*1/2 mr

2F = mr

Divide each side by r

2F/r = mr/r

2F /r = m

7 0
3 years ago
Question 2 - Signal and System Properties. State whether each of the statements is true or false. Note that a statement is true
gregori [183]

Answer:

  (a) true

  (b) true

  (c) false; {y = x, t < 1; y = 2x, t ≥ 1}

  (d) false; y = 200x for .005 < |x| < 1

Step-by-step explanation:

(a)  "s(t) is periodic with period T" means s(t) = s(t+nT) for any integer n. Since values of n may be of the form n = 2m for any integer m, then this also means ...

  s(t) = s(t +2mt) = s(t +m(2T)) . . . for any integer m

This equation matches the form of a function periodic with period 2T.

__

(b) A system being linear means the output for the sum of two inputs is the sum of the outputs from the separate inputs:

  s(a) +s(b) = s(a+b) . . . . definition of linear function

Then if a=b, you have

  2s(a) = s(2a)

__

(c) The output from a time-shifted input will only be the time-shifted output of the unshifted input if the system is time-invariant. The problem conditions here don't require that. A system can be "linear continuous time" and still be time-varying.

__

(d) A restriction on an input magnitude does not mean the same restriction applies to the output magnitude. The system may have gain, for example.

6 0
3 years ago
Which is the vertex of x^2 + 10x = - 17?
Dafna11 [192]

Answer:

(-5, -8)

Step-by-step explanation:

Parabolas always have a lowest point (or a highest point, if the parabola is upside-down). This point, where the parabola changes direction, is called the "vertex". If the quadratic is written in the form y = a(x – h)2 + k, then the vertex is the point (h, k).

x^2 + 10x = - 17

x^2+10x+17=0

x^2+2*5x+25 - 8=0

(x+5)^2-8=0

h=-5, k= -8

vertex is (-5, -8)

3 0
2 years ago
A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second. After approximately 2.3
Stella [2.4K]
Just use your equation and sub in 1.5 for x (thee time) to find y (the height at that time). You get a height of 15.5 when the time is 1.5 seconds
6 0
3 years ago
Read 2 more answers
I dont mind giving out 40 points to who ever answers this correctly
jenyasd209 [6]

Answer:

27/ (4  x^6 y^8)

Step-by-step explanation:

4(3x^2y^4)^3/(2x^3y^5)^4

expand

4 (3^3  x^2^4 y^4^3) / (2^4 x^3^4 y^5^4)

power of the power rule , exponents to the power are multiplied

4 (3^3  x^(2*4) y^(4*3) / (2^4 x^(3*4) y^(5*4))

4 (27  x^(8) y^(12) / (16 x^(12) y^(20))

put like terms over each other

4 * (27/16) * x^8/x*16  * y^12/y^20

when dividing exponents , we subtract the powers

27 * 4/16 * x^ (8-14) * y^ (12-20)

27* 1/4 * x^(-6) *  y^ (-8)

27/4  *  x^(-6)(y)^ (-8)

negative terms go to the denominator

27/ (4  x^6 y^8)


5 0
3 years ago
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