Answer: Answer: 14 : 12 , 21 : 18 and 28 : 24
Please brainliest i answer first
It’s D, when lines are perpendicular, the slopes of the lines are opposite reciprocals.
Answer:
Step-by-step explanation:
The <em><u>correct answer</u></em> is:
7.8 × 10⁷
Explanation:
To write a number in scientific notation, we want the decimal behind the first non-zero digit in the number. The first non-zero digit in 78 is 7; this means we want 7.8. In order to have the decimal point behind the 7, we need to move the decimal 7 places. This is the exponent of 10 in our scientific notation, which gives us
7.8 × 10⁷
Answer:
Step-by-step explanation:
