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2 years ago

Best answer dets Brainliest!!!

Mathematics

1 answer:

Gala2k [10]2 years ago

8 0

Plot the points at
(-9,-5)
And
(-3,-5)
This looks right

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Why sad? be happy :v

Nookie1986 [14]

Answer:

Because two of my uncles got shot and my moms friend committed suicuide. This all happened this year. That’s why I’m sad.

Step-by-step explanation:

7 0

2 years ago

W(t)W, left parenthesis, t, right parenthesis models the daily water level (in \text{cm}cmstart text, c, m, end text) at a pond

erastovalidia [21]

Answer:

t=152 days (in radians)

Step-by-step explanation:

W(t)models the daily water level at a pond in Arizona, t days after the hottest day of the year. (t is entered in radian)

$W(t) = 15\cos\left(\dfrac{2\pi}{365}t\right) + 43$

We want to determine the first time,t at which the water level is 30cm.

When W(t)=30

$30 = 15\cos\left(\dfrac{2\pi}{365}t\right) + 43\\30-43=15\cos\left(\dfrac{2\pi}{365}t\right)\\-13=15\cos\left(\dfrac{2\pi}{365}t\right)\\-\dfrac{13}{15} =\cos\left(\dfrac{2\pi}{365}t\right)\\cos^{-1}(-\dfrac{13}{15})=\dfrac{2\pi}{365}t\right)\\cos^{-1}(\dfrac{13}{15})=\dfrac{2\pi}{365}t\right)$

$cos^{-1}(\dfrac{13}{15})=\dfrac{2\pi}{365}t\right)\\t=\dfrac{365}{2\pi}\cdot cos^{-1}(\dfrac{13}{15})\\t=152.16\\\approx 152 days \text{ (to the nearest whole day)}$

6 0

2 years ago

Read 2 more answers

WILL GIVE BRAINLIEST

Yakvenalex [24]

Answer with working is here in the picture below. Pleaseeeee give brainliest

3 0

2 years ago

Please help me answer this

Mkey [24]

Answer:

The answer is c

Step-by-step explanation:

8 0

2 years ago

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A scientist earning an annual salary of $49,839 gets a 4% raise. Estimate the new annual salary for this scientist.

sattari [20]

So i would do this question is what is 4% of 49,839 and then think about it for a minute or so then if i got stuck i would type it into a claculator and what do you get 1993.56 would be your answer.

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2 years ago