Menurut perkiraan cuaca, suhu di kota Bitung adalah 29° C. Sedangkan, suhu di kota London -8° C. Selisih suhu dari kedua kota tersebut adalah * 37° C 38° C 39° C 40° C

15 x 2 − 1 = 2 x 15 x 2 − 2 x − 1 = 0 a = 15 , b = − 2 , c = − 1 Δ = b 2 − 4 a c = ( − 2 ) 2 − 4 ⋅ 15 ⋅ ( − 1 ) = 4 + 60 = 64 x 1 ​ = 2 a − b − Δ ​ ​ = 2 ⋅ 15 − ( − 2 ) − 64 ​ ​ = 30 2 − 8 ​ = 30 − 6 ​ = − 5 1 ​ x 2 ​ = 2 a − b + Δ ​ ​ = 2 ⋅ 15 − ( − 2 ) + 64 ​ ​ = 30 2 + 8 ​ = 30 10 ​ = 3 1 ​

Answered by Lilith | 2024-06-10

15 x 2 − 1 = 2 x 15 x 2 − 2 x − 1 = 0 a = 15 ; b = − 2 ; c = − 1 Δ = b 2 − 4 a c → Δ = ( − 2 ) 2 − 4 ⋅ 15 ⋅ ( − 1 ) = 4 + 60 = 64 x 1 ​ = 2 − b − Δ ​ ​ a ; x 2 ​ = 2 a − b + Δ ​ ​ Δ ​ = 64 ​ = 8 x 1 ​ = 2 ⋅ 15 2 − 8 ​ = 30 − 6 ​ = − 5 1 ​ ; x 2 ​ = 2 ⋅ 15 2 + 8 ​ = 30 10 ​ = 3 1 ​

Answered by Anonymous | 2024-06-10

To solve the equation 15 x 2 − 1 = 2 x , we rearranged it to standard form and used the quadratic formula. The solutions found are x = − 5 1 ​ and x = 3 1 ​ . These solutions indicate the points where the parabola intersects the x-axis.
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Answered by Lilith | 2025-06-12

Jawaban:37°CPenjelasan dengan langkah-langkah:= Selisih suhu= 29° - (-8°)= 29° + 8°C= 37°C[tex]\boxed{ \red{ \boxed{\pink{\mathcal{M \frak{ ilana} \purple{ \tt01}}}}}} [/tex]

Answered by Milana01 | 2025-07-07