(50 points and brainliest. )the size of a certain cell is 2.5 × 10^–9 m. another cell is 1.5 × ^times larger. how large is the larger cell in scientific notation?

The answer is 3.75× m.

Step-by-step explanation:

let x denotes the size of certain cell which is equal to 2.5×m.

let y denotes  the size of another cell  which is equal to 1.5x .

y=1.5(2.5×m)

y=1.5×2.5×m

y=3.75×m

Then the size of larger sell is 3.75×m.

2/3x + 7 = 29

step-by-step explanation:

two thirds = 2/3

plus a number = x

at least 29 = 29

there for you should get 2/3x + 7 = 29

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752