Mathematics, 22.09.2021 22:50 jojo77789
Algebra > Linear equations > 176 - Forming equations > Quiz
7 X
8 x
6
5
4
3
1
2
9 of 12
Natasha was thinking of a number. Natasha divides by 12 then adds 2 to get an
answer of 38. Form an equation with x from the information
Answers: 2
Mathematics, 21.06.2019 17:30
Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.
Answers: 2
Mathematics, 21.06.2019 18:00
Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 Β· 12 b = 36 describe the mistake that arnold made.
Answers: 2
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
Algebra > Linear equations > 176 - Forming equations > Quiz
7 X
8 x
6
5...
8 x
6
5...
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