Your answer would be C. 6.07 × 10^24.
This is because to add numbers in standard form, we need to get their (×10^x) to be the same, as in, we need to get 7 × 10^22 to be [value] × 10^24.
To convert ×10^22 to ×10^24, we need to divide 7 by 100, as 0.07 × 10^24 = 7 × 10^22.
Now that we have them both with the same power, we can add 6 to 0.7 to get 6.07 × 10^24.
I hope this helps! Let me know if you have any questions because my explanation was a bit strange :)
Answer:
X = ±5
Step-by-step explanation:
X^2 - 9 = 16
Add 9 to each side
X^2 - 9+9 = 16+9
X^2 = 25
Take the square root of each side
sqrt(X^2 ) =±sqrt(25)
X = ±5
Francesca got home first because If you round 13/15 you get 1 whole.
"AB84"
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