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3 years ago

Bacteria can divide every 20 minutes, so 1 bacterium can multiply to 2 in 20 minutes,

Mathematics

1 answer:

8_murik_8 [283]3 years ago

7 0

There will be 2 bacterias after 20 minutes

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Which expression is equivalent to (2−√−4)+(1+√−49)? 3−5i 3+5i 8+0i −2+0i

sergij07 [2.7K]

Answer:

3 + 5i.

Step-by-step explanation:

(2−√−4)+(1+√−49)

√−4 = 2i and

√−49 = 7i.

So (2−√−4 + (1+√−49

= ( 2 - 2i) + (1 + 7i)

= 3 + -2i + 7i

= 3 + 5i.

3 0

4 years ago

(3x - 9) + x + (x + 28) = 184.

julia-pushkina [17]

Answer:

Step-by-step explanation:

rearrange and combine like terms

(3x - 9) + x + (x + 28) = 184

3x - 9 + x + x + 28 = 184

3x + x + x + 28 - 9 = 184

3x + x + x = 184 + 9 - 28

5x = 165

x = 33

3 0

3 years ago

Read 2 more answers

20 pts

Vlad [161]

D. go study it I dont know it

6 0

4 years ago

1. The formula for the velocity of an object is d=v/t, where v is the object, d is the distance traveled, and t is the time the

Arlecino [84]

Answer:

you need to isolate t or time

you need to know distance between sun and earth and velocity of them in order to calculate how long it takes for light to travel from the Sun to Earth

Step-by-step explanation:

$t*(d)=(v/t)*t\\td= v\\\\\frac{td}{d} =v/d \\t=v/d$

to find time you multiply t to both sides then you cancel t from where velocity is and you get velocity by itself

now you mulipy d to both side to get v over d and time by itself

6 0

3 years ago

Find x K (7x + 217 47 M

Butoxors [25]

Answer:

x=16

Step-by-step explanation:

The opposite angles will always be supplementary

<K + < M = 180

47+ 7x+21 = 180

Combine like terms

7x+68 = 180

Subtract 68

7x = 180-68

7x = 112

Divide by 7

7x/7 = 116/7

x =16

3 0

2 years ago