Предмет: Алгебра, автор: temirtayeva04

вычислите 7√75+4√48

Приложения:

Ответы

Автор ответа: Universalka

$1)7\sqrt{75}+4\sqrt{48}=7\sqrt{25*3}+4\sqrt{16*3}=7*5\sqrt{3}+4*4\sqrt{3}=\\\\=35\sqrt{3}+16\sqrt{3} =51\sqrt{3}\\\\\\2)(\sqrt{5000}+\sqrt{\frac{1}{8}})*\sqrt{18}=\sqrt{5000}*\sqrt{18}+\sqrt{\frac{1}{8}}*\sqrt{18}=\\\\=\sqrt{2*25*100*9*2} +\sqrt{\frac{1}{8}*18} =2*5*10*3+\sqrt{\frac{9}{4}}=\\\\=300+\frac{3}{2}=300+1,5=301,5$

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: Adilka2002

глагол где звуков больше чем букв

2 года назад

Предмет: Английский язык, автор: sv050879

Поставь буквы в нужном порядке и угадай слова,которые здесь зашифрованы:
t,e,h,r,r,b.o

2 года назад

Предмет: Английский язык, автор: svetapehtereva

Помогите раскрыть скобки.
1. I don t like fish. But yesterday I (eat) fish for dinner. It (be) very tasty.
a) eats, was b) ate, was c) ate, were
2. - Do you often see tom?
- Not often, but I (see) him in the park yesterday.
a) am seeing b) sees c) saw d) did saw
3. We usually have breakfast at 8 o'clock, But yesterday we (have) breakfast at 9 o'clock.
a) had b) has c) having d)haved
4. What ...... you (give) your Mother on the 8-th of March last year?
a) gave b) do you gave c) did you give d) are you give
5. My father (go) to Moscow last week.
a) goes b) went c) is going d) goed
6. Where ..... they (play) yesterday?
a) did... play b) played c)do ..... played d) are.....playing
7.She (not listen) to her Mother and the wolf (eat) her.
a) didn't listen ....and....eated b) doesn't listened....and...eats c) didn't listen....and...ate d) is not listen....and....eating
8. Where they (be) last month?
a) were was they... b) where did they be... c) where they were.... d) where were they
9. Last week our family (go) to the Black Sea but our Granny (be) at home.
a) goed....was b) went...was c) did went were
10. Last week my friend (buy) a very interesting book...
a) buys b) boughts c) bought d) buying
11. But I (not can) (buy) it.
a) couldn't b) didn't can bought c) not can to bought c) couldn't buy

вычислите 7√75+4√48​

Ответы

вычислите 7√75+4√48