3 years ago

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

Mathematics

1 answer:

lesya692 [45]3 years ago

3 0

Answer:

Step-by-step explanation:

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|3x|=9 what's the answer and the breakdown of this problem?

andreev551 [17]

$|3x|=9\iff3x=9\ \vee\ 3x=-9\qquad\text{divide both sides by 3}\\\\x=3\ \vee\ x=-3$

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4 years ago

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Given<br>2<br>f (x) = -5x^2 – 8x + 3 and g(x) = -3x^2<br>+ 7x + 11,<br>find (f +g) (x)

denis23 [38]

Answer:

$\boxed{\sf \ \ \ (f+g)(x)=-8x^2-x+14 \ \ \ }$

Step-by-step explanation:

Hello,

$f(x)=-5x^2-8x+3 \ and\\g(x)=-3x^2+7x+11 \ so\\(f+g)(x)=f(x)+g(x)=-5x^2-8x+3-3x^2+7x+11\\=-8x^2-x+14$

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3 years ago

A mass weighing 13 lb stretches a spring 4.5 in. The mass is also attached to a damper with coefficient Y. Determine the value o

Gemiola [76]

Answer:55.227

Step-by-step explanation:

Given data

mass $\left ( m\right )$ =13lb

spring stretches by $\left ( x\right )$ =4.5in=0.375 ft

g= $32ft/s^2$

Now Spring constant K

mg=kx

k= $\frac{13\times 32}{y}=58.667lb/ft$

For critical damping $\zeta =1$

$2\times \zeta \times \omega_n =\frac{c}{m}$

and $\omega_n=\sqrt {\frac{k}{m}}$

$\omega _n=2.1241rad/s$

substituting values

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aalyn [17]

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nata0808 [166]

Answer:

Na dimio reso

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Step-by-step explanation:

there's no explanation

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