4...

July 2022 1 4 Report

Найдите действительные значения x при которых квадратичная функция y=x^2-x-3 принимает значение равное -13/4

Answers & Comments

flower454

Ответ:

$y = {x}^{2} - x - 3\\y = {( -1 3)}^{2} + 13 - 3 \\ y = 169 + 10 \\ y = 179 \\ \\ \\ 4 = {x}^{2} - x - 3 \\ {x}^{2} - x - 7 = 0 \\ d = 1 -28 = 29 \\ x1 = \frac{1 + \sqrt{29} }{2} \\ x2 = \frac{1 - \sqrt{29} }{2}$

3 votes Thanks 4

vychislite funkciyu y4x20 pri znacheniyah x kratnyh na 3 v otrezke 100100 pr

Answer

Shonnaa November 2021 | 0 Ответы

ukazhite ryad imen sushestvitelnyh kotorye imeyut formu tolko mnozhestvennogo chisl

Answer

Shonnaa November 2021 | 0 Ответы

ukazhite ryad imen sushestvitelnyh kotorye imeyut formu tolko edinstvennogo chisla

Answer

Shonnaa November 2021 | 0 Ответы

ukazhite ryad s oshibkoj v opredelenii mnozhestvennogo chisla imen sushestvitelnyha

Answer

Shonnaa September 2021 | 0 Ответы

v kakoj cvet okrashivaetsya fenolftalein v sernoj kislote

Answer

Answers & Comments

vychislite funkciyu y4x20 pri znacheniyah x kratnyh na 3 v otrezke 100100 pr

ukazhite ryad imen sushestvitelnyh kotorye imeyut formu tolko mnozhestvennogo chisl

ukazhite ryad imen sushestvitelnyh kotorye imeyut formu tolko edinstvennogo chisla

ukazhite ryad s oshibkoj v opredelenii mnozhestvennogo chisla imen sushestvitelnyha

v kakoj cvet okrashivaetsya fenolftalein v sernoj kislote

рекомендуемые вопросы

Helpful Links

Helpful Social