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ozzi
3 years ago
11

Someone please help! I’ll give brainliest!!

Mathematics
1 answer:
anyanavicka [17]3 years ago
6 0

Answer:

The answer is 65.97 yd^3

Step-by-step explanation:

The volume of a cone is: v = \pi r^{2}\frac{h}{3}

So, v = \pi(3^2)(7/3) = 65.97345 yd^3

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A certain virus is dying off at a rate of 18% per hour. Initially there were
djyliett [7]

Answer:

3 strain would still alive after 48 hours

Step-by-step explanation:

Initial population of virus = 40000 grams

A certain virus is dying off at a rate of 18% per hour.

We are supposed to find  how much of the  strain would still be alive after 48 hours

Formula : N(t)=N_0(1-r)^t

N_0=Initial population

N(t)= Population after t hours

r = rate of decrease = 18% = 0.18

t = time = 48 hours

So,the  strain would still be alive after 48 hours=40000(1-0.18)^{48}=2.91 \sim 3

Hence 3 strain would still alive after 48 hours

3 0
3 years ago
11.What is the solution of the inequality below?<br> |2x + 7| &gt; 9
Gennadij [26K]

Answer: X=8,-1

Hope it help:)

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3 years ago
In the equation y=-2x + 3, if x = 7, what does y equal
Ahat [919]

Answer:

-11

Step-by-step explanation:

-14+3=-11

7 0
3 years ago
Evaluate 2xsquared by 2 − 5y over 3x −y when x = 2 and y = -4.
Arisa [49]
(2x^2 -5y)/(3x-y)
((2*2)^2-(5*-4))/((3*-4)-(-4))
(4^2+20)/(-12+4)
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2 years ago
In the diagram below, the horizontal lines are parallel. Find the value of x
marta [7]

Answer:

128

Step-by-step explanation:

180 - 52

5 0
2 years ago
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