Two petri dishes were on the desktop in dr. mcfarlan's lab.
dish a had cells with a radius of 4.1 x 10-15 cm. dish b had cells that had a radius of 2.3 x 10-13 cm. what is the sum of the radii of
the two types of cells, using scientific notation?
a.2.341 x 10-17 cm
b. 23.41 x 10-16 cm
c. 234.1 * 10-15 cm
d. 2.341 x 10-13 cm

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

can i see the following ?

step-by-step explanation: