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Sidana [21]
3 years ago
10

A scientist observes and counts 155 bacteria in a culture. Later, the scientist counts again and finds the number has increased

by 40%.How many bacteria are there now?
Mathematics
1 answer:
nataly862011 [7]3 years ago
5 0
IM STILL TRYNA GET THIS ONEE TOO
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A train runs once a week from Delhi to Mumbai and back. It started from Delhi at 9 PM on 16th May, and returned after completing
Nataliya [291]

Answer:

18th of may at 9:00am

Step-by-step explanation:

because 48 hours after 9PM will be the exact time, i.e., 9PM.

4 0
2 years ago
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What is the ratio for cos B ?
TiliK225 [7]

Answer:

3/5

Step-by-step explanation:

Cos(B) = adjacent/hypotenuse

Cos(B) = 48/80 = 6/10

Cos(B) = 3/5 or 0.6

7 0
3 years ago
[Function Composition] could someone help me with this answers or show work either is fine
zavuch27 [327]

Answer:

21

Step-by-step explanation:

Given the following expressions

f(x) = x³-2x

g(x) =-x-2

We are to find (fog)(-5)

fog = f(g(x))

f(g(x)) = f(-x-2)

Replace x with -x-2 in f(x)

f(-x-2) = (-x-2)³-2(-x-2)

f(-x-2) = (-x-2)³+2x+4

fog = (-x-2)³+2x+4

Substitute x = -5 into the result

fog(-5) = (-x-2)³+2x+4

fog(-5) = (-(-5)-2)³+2(-5)+4

fog(-5) = (5-2)³-10+4

fog(-5) = 3³-6

fog(-5) = 27-6

fog(-5) = 21

Hence the required result of the composite function is 21

8 0
3 years ago
Factor by grouping.<br> xv+ 3x-2v-6
andrey2020 [161]

Answer:

(x - 2)(v + 3)

Step-by-step explanation:

xv + 3x - 2v - 6

= x(v + 3) - 2(v + 3)

4 0
3 years ago
X^2 + 2x +3 find the indicated output for this function
slavikrds [6]
X^+5x would be the answer
4 0
3 years ago
Read 2 more answers
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