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15 POINTS!!! HELP ASAP! Liz wants to write the phrase “the difference of seven and the number squared” as an algebraic expressio
n. She wrote out several expressions in the table. Which expression correctly represents the phrase.
Expression number ____?
Expression number ____?
1 answer:
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Answer:
Step-by-step explanation:
Hello,
<u>The mean of five numbers is 8</u> so we can write
<u>When another number is added the mean is 7</u>, let s note x the another number we can write
From the first equation we can say
So the second equation becomes
The solution is then 2
Hope this helps
Use the table of trigonometric ratios /in a picture/.
Answer: m∠A ≈ 70°
