Mathematics, 10.09.2020 14:01 stressedstudent1906
Round 7.43 to the nearest tenth
Answer from: Quest
1 3 5
step-by-step explanation:
i took the test: )
Answer from: Quest
what is the question?
step-by-step explanation:
Answer from: Quest
lol.
it's ok we all do this sometimes.
-aparri
Answer from: Quest
x^2 + 81
we can factor this using difference of square binomials.
rewrite the equation:
x^2 - (-81)
factor:
(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)
(x^2 - (-81) = (x + √-81)(x - √-81)
we can remove the - from under the radical by multiplying it by i.
(x^2 - (-81) = (x + i√81)(x - i√81)
(x^2 - (-81) = (x + 9i)(x - 9i)
(x + 9i)(x - 9i)we can check our answer by using foil:
x^2 - 9ix + 9ix - 81i^2
x^2 - 81^2
i^2 = -1
x^2 + 81
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Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright
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Mathematics, 21.06.2019 18:30, locomexicano03
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Round 7.43 to the nearest tenth...
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