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makvit [3.9K]
4 years ago
6

Parametric Equations.

Mathematics
1 answer:
sleet_krkn [62]4 years ago
5 0
2.5+105sin40 t -16 t^2 = 0
 t = (-105sin(40) + sqrt(105^2sin^2(40)-4(-16)(2.5))) /2(2.5)

t = .235 seconds if i entered those right
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Sara works 40 hours per week and earns $660. Which graph shows the unit rate for this situation?
coldgirl [10]

Answer: $16.5/hour

Step-by-step explanation:

The unit rate is the relationship between y and x if x = 1

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Therefore, <u>$16.5/hour</u>

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3 0
3 years ago
Will give me a 20% discount if I spend over $50 my bill is $75.What is my final bill after the savings
Andrews [41]
Hey there,
$75 is above $50
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3 years ago
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Maria says the mean of the scores 7, 8, 3, 0, 2 is 5, because she added the scores and divided by 4. Is she correct? Explain why
Sergeu [11.5K]

Answer:

She is wrong.

Step-by-step explanation:

The mean score is

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20/5= 4.

Therefore, Maria is wrong.

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8 0
2 years ago
Can someone help with this question please?
Ilia_Sergeevich [38]

Answer:

D. x = 5

Step-by-step explanation:

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4 years ago
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Nataly_w [17]

Answer:

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Step-by-step explanation:

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