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2 years ago

8

A cellular phone company charges a 49.99 dollar monthly fee for 600 free minutes. Each additional minute costs 35 cents. This mo

nth, you used 750 minutes. How much do you owe?

1 answer:

solniwko [45]2 years ago

8 0

I'm not 100% sure but what I got was $52.5

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✓-90= Ai√B<br> What is the value of A?<br> What is the value of B?

olga2289 [7]

Answer:

A = 3, B = 10

Step-by-step explanation:

$\sqrt{-90}$

= $\sqrt{9(-1)(10)}$

= $\sqrt{9}$ × $\sqrt{-1}$ × $\sqrt{10}$

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in the form Ai $\sqrt{B}$

with A = 3 and B = 10

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2 years ago

Help me with B please

salantis [7]

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3 years ago

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valentina_108 [34]

-3
step by step
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2 years ago

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kupik [55]

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12.Dragon

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Step-by-step explanation:

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A particle moves on a coordinate line with an acceleration at time t seconds of e^t/2 m/sec^2. At t=0 the particle is at the ori

castortr0y [4]

Hello,

A) $a=e^ \frac{t}{2} \\\\

v(t)=\int\ a\ dt=\int\ e^ \frac{t}{2}\ dt=2*e^ \frac{t}{2}+C\\\\v(0)=-4\\
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\boxed{v(t)= 2*e^ \frac{0}{2}-6}\\\\



$

B)
$2*e^ \frac{t}{2}-6=0\\\\

e^ \frac{t}{2}=3\\\\

t=2*ln(3)\approx{2,19722...}\\

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C)

$x(t)=\int_0^6(2*e^ \frac{t}{2}-6})\ dt=\left[4*e^ \frac{t}{2}-6t\right]_0^6\\\\ =e^3-36-4=4e^3-40\approx{40.3421...}\\\\$

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2 years ago