bagaimana cara mencari banyak nya himpunan bagian​

Jawaban:

1. A 2. A, C, D3. a. Magnesium  b. Nitrogen  c. Sulfur(Belerang)  d. Calcium(Kalsium)4. CaCO₃ (s) + 2 HCl (aq) → CaCl₂ (aq) + CO₂ (g) + H₂O (l)Semoga membantu!

Jawab:(1.) 9x² - 4 = 0(3x + 2)(3x-2) = 0Hp = {-⅔, ⅔}

(2.) 2x² + 5x - 3 = 0(2x-1) (x+3) = 0Hp = {½, -3}

(3.) 4a(a+1) = 15(2a-3) (2a+5) = 0Hp = {³/₂, -⁵/₂}

(4.) m² - m - 6 = 0(m + 2)(m - 3) = 0Hp = {-2, 3}

Penjelasan :(1.) 9x² - 4 = 0(3x)² - 2² = 0a² - b² = (a+b)(a-b)(3x + 2)(3x-2) = 0Hp = {-⅔, ⅔}

(2.) 2x² + 5x - 3 = 0a = 2x² + 5x - 3(2) =0x² + 5x - 6 = 0b = 5, c = -6b+c = 5, bc = -6-1+6 = 5, -1(6) = -6b = -1, c = 6¹/ₐ (ax+b)(ax+c) = 0½ (2x-1) (2x+6) = 0(2x-1) (²/₂x+⁶/₂) = 0(2x-1) (x+3) = 0Hp = {½, -3}

(3.) 4a(a+1) = 15a(a+1) = ¹⁵/₄a² + a = ¹⁵/₄a² + a + (½)² = ¹⁵/₄ + (½)²a² + 2a(½) + (½)² = ¹⁵/₄ + ¼(a + ½)² = ¹⁶/₄(a + ½)² = 4a + ½ = ±√4a + ½ = ±2a = ±2 - ½Hp = {2 - ½, -2 - ½}Hp = {⁴/₂ - ½, -⁴/₂ - ½}Hp = {³/₂, -⁵/₂}(2a-3) (2a+5) = 0Hp = {³/₂, -⁵/₂}

(4.) m² - m - 6 = 0ab = -6, a + b = -12(-3) = -6, 2 - 3 = -1a = 2, b = -3(m + a)(m + b) = 0(m + 2)(m - 3) = 0Hp = {-2, 3}

(xcvi)

What will you do or not based on situation below.

1. You look your mother is busy to do the house work.
2. Your friend is thristy.
3. You see an accident on your way home from school.
4. You have three tests tomorrow.
5. You feel your room is too hot.
6. Your brother is studying seriously for the test.
7. Your parents need much money to pay the electricity's bill.
8. There is raining so hard outside.
9. There is a sick people sleeping.
10. There are many dirty plate in the kitchen.

What will i do or not based on situation below.

1. I will help my mother to do the housework.
2. I will give my friend a drink.
3. I will take her/him to the hospital.
4. I will study for tomorrow's three tests.
5. I will open the window or turn on the fan/ac.
6. I will not disturb my brother.
7. I will save on electricity use.
8. I won't leave the house.
9. I won't be noisy.
10. I will wash the dishes.

Pembahasan:

Modals atau kata kerja bantu dalam bahasa Inggris berfungsi untuk mengekspresikan willingness (kemauan) atau ability (kemampuan), necessary(kebutuhan), dan possibility (kemungkinan). Modals memiliki macam macam bentuk seperti, can, could, may, might, will, would, shall, should, must dan ought to yang semuanya dapat dijadikan sebagai kata kerja bantu.

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Jawaban:

bunga raflesia ditemukan oleh rafles arnoldi