2 years ago

I need help please someone explain me how to do it

1 answer:

7 0

Hello,

$\lim_{n \to -\infty} {-x^7+bx^3+c} = -(-\infty) =\infty$
(we don't take care of lest powers , only the upper power)

Answer C

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LuckyWell [14K]

Answer:

Step-by-step explanation:

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2 years ago

The Hudson Bay tides vary between 3 feet and 9 feet. The tide is at its lowest point when time (t) is 0 and completes a full cyc

BaLLatris [955]

Answer:

$y(t)= 6-3cos(\dfrac{2\pi}{14}t )$

Step-by-step explanation:

The function that could model this periodic phenomenon will be of the form

$y(t) = y_0+Acos(wt)$

The tide varies between 3ft and 9ft, which means its amplitude $A$ is

$A =\dfrac{(9-3)ft}{2} \\\\\boxed{A = 3ft}$

and its midline $y_0$ is

$y_o=3+3 \\\\\boxed{y_o= 6ft}$ .

Furthermore, since at $t=0$ the tide is at its lowest ( 3 feet ), we know that the trigonometric function we must use is $-cos(\omega t)$ .

The period of the full cycle is 14 hours, which means

$\omega t =2\pi$

$\omega (t+14)= 4\pi$

giving us

$\boxed{\omega = \dfrac{2\pi}{14}.}$

With all of the values of the variables in place, the function modeling the situation now becomes

$\boxed{y(t)= 6-3cos(\dfrac{2\pi}{14}t ).}$

8 0

3 years ago

The lunch choices last Friday were mushroom or pepperoni pizza. The cafeteria made 8

Anna11 [10]

Answer:

5%, 6%

or 6.4%, 5.76%

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2 years ago

Read 2 more answers

Is my answer right?? if not which one is it?? BRAINLIEST IF UR CORRECT!

lorasvet [3.4K]

Answer:

Step-by-step explanation:

1 yes

2 yes

3 yes

4 yes

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2 years ago

Nora measured the angles of a triangle. Two of the angles measured 20° What was the measure of the third angle of Nora’s triangl

aivan3 [116]

Answer:

140°

Step-by-step explanation:

The sum of angle of a triangle is equal to 180°.

Two of the angles measured 20°.

We need to find the measure of the third angle of Nora’s triangle. let the third angle is x. So,

20+20+x = 180

40+x = 180

x = 180-40

x = 140°

So, the third angle of the triangle is 140°.

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2 years ago