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djverab [1.8K]
4 years ago
11

Can someone help me with these???? I'm not fully understanding this unit.

Mathematics
1 answer:
LiRa [457]4 years ago
5 0
For the first one you need to change the decimals into a fraction then after you do that you multiply the fractions then you get your answer
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Is the circle inside the hexagon or hexagon inside the circle?
nexus9112 [7]

It could be either, we need more info. How big are each? If it doesn't say, then it's a trick question. Throw Schrodinger's cat at it or something.

8 0
3 years ago
Write an equation of the line perpendicular to the given line that contains P.
lara31 [8.8K]

Answer:

Step-by-step explanation:

perp. -5

y + 7 = -5(x - 4)

y + 7 = -5x + 20

y = -5x + 13

7 0
3 years ago
A scientist writes the equation n(h)100e^0.25h to model the growth of a certain bacteria in a petri dish, where N represents the
Natasha2012 [34]

Answer: Second option is correct.

Step-by-step explanation:

Since we have given that

n(h)=100e^{0.25h}

where, N represents the number of bacteria after 'h' hours.

So, we have given that there are 450 bacteria present.

N = 450

According to question,

450=100e^{0.25h}\\\\\frac{450}{100}=e^{0.25h}\\\\4.5=e^{0.25h}\\\\\text{Taking natural log 'ln' on both sides}\\\\\ln (4.5)=0.25h\\\\1.50=0.25h\\\\h=\frac{1.50}{0.25}\\\\h\approx 6\ hours

Hence, Second option is correct.

8 0
3 years ago
Read 2 more answers
HELLO! SOS!!! PLEASE HELP ME!!! THANK YOU SO MUCH!!! WILL MARK BRAINLIEST!! WORTH 25 PTS!! THANK YOU AGAIN!!
lozanna [386]

Answer:

16.5 =x

Step-by-step explanation:

Since this is a right triangle, we can us trig functions

tan theta = opp side / adjacent

tan 70 = x /6

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6 tan 70 = x

16.48486452 =x

To the nearest tenth

16.5 =x

4 0
3 years ago
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A jar contains n nickels and d dimes. There are 28 coins in the jar,and total value of the coins is $2.20. How many nickels and
Harman [31]
N + d = 20 (there are a total of 20 nickels and dimes).05n + .1d = 1.4 (total change equals $1.40)
7 0
4 years ago
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