"All mobile phones have microphones. Some mobile phones have cameras. All devices with cameras have a battery." Convert these statements into a Venn diagram and use it to answer the following question. If the statements above are true then which of the following statements are incorrect?
a) Sam's mobile phone does not have a camera so it might not have a battery
b) Sam's mobile phone has a camera so it must have a battery
c) Sam has a device that has a camera, a microphone and a battery so it must be a mobile phone
d) Sam has a device that does not have a microphone so it must not be a phone

there is no image or shapes attacted

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

ion

step-by-step explanation:

ion ion ion ion ion ion ion ion ion ion ion

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of