Oblicz wartości wyrażeń dla podanych wartości zmiennych
-
Temat:
Matematyka -
Autor:
bubba -
Utworzono:
1 rok temu
Odpowiedzi 1
Odpowiedź:
zad 9
a)
6x(2x- 1) + 4x(4 - 3x) = 12x² - 6x + 16x - 12x² = 10x = 10 * (- 4,2) = - 42
b)
(y - 2)(y + 3) - y² = y² - 2y + 3y - 6 - y² = y - 6 = - 1 1/7 - 6 = - 7 1/7
c)
a(3a + b) - 2a² = 3a² + ab - 2a² = a² +ab = 5² + 5 * ( - 3) = 25 - 15 = 10
d)
m(2m + 6) - 3(1 + 2m) = 2m² + 6m - 3 - 6m = 2m² - 3 = 2 * (1/n)² - 3 =
= 2 * (- 1/5)² - 3 = 2 * 1/25 - 3 = 2/25 - 3 = 2/25 - 2 25/25 = - 2 23/25
-
Autor:
trent468
-
Oceń odpowiedź:
7
Znasz odpowiedź? Dodaj ją tutaj!
Other related questions that may help you
4 W zeszycie uzupełnij pytania gości hotelowych. 1 A: ? the bathroom? B: It's in the main building, on the ground floor. 2 A: ? you serve breakfast? B: From 7 till 10.30. 3 A: ? to the nearest town? B: About 2 kilometres. 4 A: ? take to get to the train station by taxi? B: Between thirty and forty minutes. It depends on the traffic, though. 5 A: ? cable cars nearby? B: Yes, there are two but they're both out of service today
-
Autor:
doodles
-
Autor:
ciscoug7p
-
Oceń odpowiedź:
20
Pomocyyyy!!!
Potrzebuje mieć rozwiązane te zadanie
NA ILUSTRACJI PRZEDSTAWIONO KIERUNEK NAPŁYWU MONSUNU
-
Autor:
jasminecampbell
-
Autor:
sophiakeza
-
Oceń odpowiedź:
2
Wybierz poprawną odpowiedź: A, B, albo C i zakreśl ją.
Catch Me If You Can is a crime film, 1 ___ is based on a biographical novel written by Frank William Abagnale and Stan Redding. It tells the story of a young boy 2 ___ runs away from home. Later in life, he pretends to be a pilot, then a doctor and, finally, a lawyer! The film is set in the 1960s, 3 ___ people often used cheques, not credit cards, and the young Frank Abagnale writes out false cheques in order to get money. The FBI is soon after him, so he escapes to France, 4 ___ he ends up in prison. But that’s not the end of the story! I recommend the film to anyone 5 ___ likes a combination of action and humour. You won’t go home disappointed.
1 A which B when C who
4 A which B whose C where
2 A who B who’s C when
5 A which B who C whose
3 A who B where C when
-
Autor:
morse
-
Autor:
charitycantu
-
Oceń odpowiedź:
4
Wybierz język i region
How much to ban the user?
1 hour
1 day
100 years