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kipiarov [429]
4 years ago
12

How do I find side a?

Mathematics
2 answers:
il63 [147K]4 years ago
6 0

Answer: find a

Step-by-step explanation:

nika2105 [10]4 years ago
5 0

Answer:

a=18

Step-by-step explanation:

the triangles are similar, so the coefficient k is \frac{30}{20}

\frac{a}{12}=\frac{30}{20}  \\a= (30*12)/20=360/20=18

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The equation of motion for a particle in meters at time t seconds is s(t)=sin(pi(t)/6)+cos(pi(t)/6), 0 is less then/equal to t i
Trava [24]
S(t) = sin(πt/6) + cos(πt/6)
Velocity = s'(t) = π/6 (cos(πt/6) - sin(πt/6))

When velocity = 0
cos(πt/6) - sin(πt/6) = 0
cos^2(πt/6) -2cos(πt/6) sin(πt/6) + sin^2(πt/6) = 0
1 - 2cos(πt/6) sin(πt/6) = 0
1 - sin(πt/3) = 0
sin(πt/3) = 1
πt/3 = arcsin(1) = π/2
t = 1.5

acceleration = s''(t) = -(π/6)^2 (cos(πt/6) + sin(πt/6))
s''(1.5) = -(π/6)^2 (cos(π/4) + sin(π/4)) = -(π/6)^2 (2/√2) = -0.3877
accerelation = -0.3877 meter/s^2
7 0
3 years ago
How do you factor out 4v(squared) - 16v + 7?
Salsk061 [2.6K]
It is a square trinomial:
4v^2 - 16v + 7 = 0
lets multiply and divide all by 4, the square term coefficient:
(16v^2 - 16(4)v + 28)(1/4) = 0
(4v - 14)(4v - 2)<span>(1/4) = 0
</span>factor 1/4
(4v - 14)(4v - 2)(1/2)<span>(1/2)</span> = 0
and divide each:
(2v - 7)(2v - 1) = 0
7 0
3 years ago
Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?
Maksim231197 [3]

+ 36 is ur Answer

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3 0
3 years ago
Frands collects marbles. In her collection are:
Vilka [71]

Answer:

Step-by-step explanation:

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3 0
3 years ago
3. (5 + 2) = (3 . 5) + (3 . 2) *
UNO [17]

Answer:

C) Distributive Property

Step-by-step explanation:

You're <em>distributing</em> in the 3 when you multiply it by the 5 and the 2 in the algebraic process:

 ➦  ➦

3•(5 + 2) = (3 • 5) + (3 • 2)

So, the 3 was <em>distributed</em> between the 5 and 2 when you multiplied.

Hence, this is the distributive property.

8 0
3 years ago
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