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3 years ago

14

liz is going on a trip and needs to save money. she currently has $300 in her bank account and she plans to save $50 each payche

ck until she has a balance of $1000

1 answer:

Alik [6]3 years ago

5 0

1000-300 = 700 divided by 50... it’ll take 14 paychecks or possibly about half a year I believe?

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What type of polynomial is: 3x^4 - 2x^3 - 2

butalik [34]

This polynomial has only 3 terms, so it is a trinomial. <em>Hope it helps!</em>

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1 year ago

A particle moves along the x-axis so that at any time t, t ≥ 0, its acceleration is a(t) = -4sin(2t). If the velocity of the par

sasho [114]

The velocity of the particle is given by

$v(t)=v(0)+\displaystyle\int_0^ta(u)\,\mathrm du$

Since $a(t)=-4\sin2t$ and $v(0)=7$ , we get

$\displaystyle\int_0^ta(u)\,\mathrm du=\int_0^t-4\sin2u\,\mathrm du=2\cos2u\bigg|_0^t=2\cos2t-2$

$\implies v(t)=2\cos2t+5$

Similarly, the position function is obtained via

$x(t)=x(0)+\displaystyle\int_0^tv(u)\,\mathrm du$

We know $v(t)$ and we're told that $x(0)=0$ , so

$\displaystyle\int_0^tv(u)\,\mathrm du=\int_0^t(2\cos2u+5)\,\mathrm du=\sin2u+5u\bigg|_0^t=\sin2t+5t$

$\implies x(t)=\sin2t+5t$

making the answer A.

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3 years ago

Fill in the missing number to complete the linear equation that gives the rule for this table.

saul85 [17]

Answer: y= 1x + 1

Step-by-step explanation:

there both 1

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3 years ago

Read 2 more answers

The options are -63/16, -61/16,-59/16, -31/8, -15/4, -29/8

SSSSS [86.1K]

Answer:

-31/8. That's the answer to your question

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3 years ago

Is this a polygon? [(3x+12)•(4x+4)]-(3x+8)-(4x)=

AleksAgata [21]

Answer:

Not a polygon

Step-by-step explanation:

[(3x+12)•(4x+4)]-(3x+8)-(4x)

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12x² + 60x + 48 - 7x - 8

12x² + 53x + 40

This is a degree 2 (quadratic) polynomial, not a polygon.

A polygon is an n-sided figure.

Example: A rectangle --> A four-sided polygon

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3 years ago