Answer: (D) 2.394 * 10^-1
Step-by-step explanation:
(4.2 * 10^-1) (5.7 * 10^-1)
= 2.394 * 10^-1
Answer:
Answer: 51x45+23=10.2x4+23
Step-by-step explanation:
I’m thinking maybe 12 boys?

so,

it equals 12.49 or 12.5 depending on rounding
I hope this helps!
If the exponent is a negative number, then you make it a fraction, with the exponent on top as a positive and the coefficient as a positive on the bottom AFTER you multiply, so what happens is if the coefficient has a negative exponent, you multiply the number by the exponent, make it positive, and put it under 1 as a fraction. So your answers are:
1/7
1/125
1/36
Hope this helps! Stay safe out there :)