3 years ago

Need Help!!!! Not sure how to solve this and I need an answer quick!

Mathematics

1 answer:

Mamont248 [21]3 years ago

8 0

Answer:

12 (c)

Step-by-step explanation:

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What is the math answer

never [62]

Answer:

Step-by-step explanation:

The perpendicular diameter to the chord divides it into two congruent parts.

Since

VU⊥XS,
XT=3b-1,
TS=b+5,

we have that XT=TS.

Hence,

3b-1=b+5,

3b-b=5+1,

2b=6,

b=3.

So,

XT=3·3-1=9-1=8

TS=3+5=8

and

XS=XT+TS=8+8=16.

7 0

3 years ago

Read 2 more answers

Evaluate the surface integral. s x ds, s is the triangular region with vertices (1, 0, 0), (0, −2, 0), and (0, 0, 12).

aniked [119]

Parameterize the surface by

$\mathbf r(s,t)=(1-s)(0,0,12)+s\bigg((1-t)(1,0,0)+t(0,-2,0)\bigg)$
$\implies\mathbf r(s,t)=(x(s,t),y(s,t),z(s,t))=(s-st,-2st,12-12s)$

where $(s,t)\in(0,1)\times(0,1)$ . We have

$\|\mathbf r_s\times\mathbf r_t\|=\|(1-t,-2t,-12)\times(-s,-2s,0)\|=2\sqrt{181}s$

The surface integral is then

$\displaystyle\iint_Sx\,\mathrm dS=2\sqrt{181}\int_{s=0}^{s=1}\int_{t=0}^{t=1}s(s-st)\,\mathrm dt\,\mathrm ds$
$=\displaystyle2\sqrt{181}\left(\int_{s=0}^{s=1}s^2\,\mathrm ds\right)\left(\int_{t=0}^{t=1}(1-t)\,\mathrm dt\right)$
$=\dfrac{\sqrt{181}}3$

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3 years ago

If g(t) = sec(t), what is g(-3 π )?

borishaifa [10]

It should be g(-3π) = sec(-3π)

I hope that helped.

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3 years ago

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Find the value of x. (4x + 5) E(7x (4x + 10) (5x - 5)->C (6x + 10)

aleksandrvk [35]

Answer:

mausbdvsusbisdnisbej