Convert 278000 into scientific notation

2.78 X 10^5 is the best answer to be responded to

278000 written in scientific notation would be 2.78×10⁵.

You can convert the number into scientific notation by doing the following:

1. Turn 278000 into 2.78000.

2. Move the decimal point to the end of the number, so that it becomes 278000 again.

3. Count the number of places that the decimal point was moved.

Since the decimal point was moved 5 places to the right, the exponent on the 10 will be positive five. Therefore, 278000 becomes 2.78×10⁵.

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50