f(x)= x^2 -6x +21
0 =x^2-6x+21
subtract 21 from each side to prepare for completing the square
-21 = x^2 -6x
completing the square (b/2)^2
(-6/2) ^ =3^2 = 9
add 9 to each side
-21 +9 = x^2 - 6x + 9
-21 +9 =(x-3) ^2
-12 = (x-3)^2
take the square root of each side
+- sqrt(-12) = x-3
add 3 to each side, take out the negative inside the square root
3 +- i sqrt(12)=x
simplify the square root sqrt(12)= sqrt(4)sqrt(3) =2sqrt(3)
3 +- i 2sqrt (3) = x
Answer: 3+2isqrt(3)
3-2isqrt(3)
10. Factor form: 2(x+5)x(x+1)
11. Factor: (x-4)x(x-10)
12. Factor: (a-8b)x(a+8b)
Hope this helps! ❤️
Answer:
I don't know because there is no info for the question but the record for most hotdogs eaten is 74 hotdogs if that helps.
Answer:
3
Step-by-step explanation:
Since the shapes are similar this means they are equal.
If the ratio is 2:1 that would mean divide each number by 2.
6/2 reduced equals 3/1 = 3
Jawaban: 7.812.500
Penjelasan langkah demi langkah:
Diberikan sebagai berikut:
Harga beli Harga tanah = 250.000.000
KEUNTUNGAN dibuat dari penjualan tanah = 25%
Persentase zakat yang dibayarkan dari laba yang dihasilkan = 2,5%
Karena itu,
Keuntungan dari penjualan tanah:
(25/100) × 250.000.000 = 62500000
Harga jual tanah:
Keuntungan + harga beli
62500000 + 250000000 = 312500000
Persentase zakat = 2,5%
Karena itu,
jumlah zakat penjualan tanah dibayar;
(2.5 / 100) × 62500000
0,025 × 312500000 = 7,812,500
