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taurus [48]
2 years ago
10

ABC is a right triangle. AM is perpendicular to BC. The size of angle ABC is equal to 55 degrees. Find the size of angle MAC.

Mathematics
1 answer:
salantis [7]2 years ago
4 0

Answer:55

Step-by-step explanation:

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(2x+3y)raise 2 pls can u tell​
bogdanovich [222]

Answer:

4x² + 12xy + 9y²

Step-by-step explanation:

Assuming you require the expansion

(2x + 3y)²

= (2x + 3y)(2x + 3y)

Each term in the second factor is multiplied by each term in the first factor, that is

2x(2x + 3y) + 3y(2x + 3y) ← distribute both parenthesis

= 4x² + 6xy + 6xy + 9y² ← collect like terms

= 4x² + 12xy + 9y²

5 0
3 years ago
Read 2 more answers
It takes Davine 3 hours to drive a distance of 273 kilometre workout is average speed​
horsena [70]

Step-by-step explanation:

No of hours = 3

Distance in kilometre = 273

Average speed = 273 ÷ 3 = 91

So 91 is the average speed per hour

7 0
3 years ago
What is 4 1/4 divided 4 1/2?
Vika [28.1K]
The answer is 1/2 I believe
8 0
3 years ago
For an object in damped harmonic motion with initial amplitude a, period 2π/ω, and damping constant c, find an equation that mod
Kay [80]

Answer:

  see below

Step-by-step explanation:

We presume the damping constant is the opposite of the multiplier of time in the exponential term. Then the equations are ...

(a)  y = a·e^(-ct)·sin(ωt)

(b)  y = a·e^(-ct)·cos(ωt)

__

These are the standard equations for simple harmonic motion assuming there is no driving function.

  a = initial amplitude*

  c = damping constant**

  ω = frequency of oscillation in radians per second

  t = time in seconds

_____

* Of course, when y(0) = 0, the motion never actually reaches this amplitude because it is subject to decay before it can.

__

** In electrical engineering, damping is often specified in terms of a time constant, the time it takes for amplitude to decay to 1/e (≈36.8%) of the original amplitude. If that time is represented by τ, then the exponential factor is e^(-t/τ).

3 0
3 years ago
5
yawa3891 [41]
Answer: 644
(20x25)+(18x8)
(500) + (144)
=644
4 0
3 years ago
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