Mathematics Senior High over 1 yearago

30メートルの高さから上に45m/sで投げられた石はいつ最高到達点につくのか見つける問題です。式はh(t)=-4.9t^2+v0t+h0　(v0は最初のスピード、h0は最初の高さを表します。) 解き方と答え教えてください🙇‍♂️

18436 18. A stone is thrown with an upward velocity of 45 m/s from a building 30 meters high. Find its height above the ground t seconds later if height can be modeled by h(t)=-4.9t²+vt+h, where v 30 = the initial velocity (m/s) and h₁ = initial height (meters). When does the stone reach the same height that it was thrown? h = -49++Vot+h 4.9t 45 t 30-4at 45++30 0= -4.9€²+45+ Hat 45 ta.1837 Hat² = 45t When will the stone reach its highest elevation? 2 h-Hat +45t +30 9,18 sec

Mathematics Senior High almost 3 yearsago

解答解説お願いします

-4 19 整式P(x)=x3+ax2+bx+cx2-1で割り切れ, x2で割ると余りが3である。 このとき,定数a, b, c の値を求めよ。 P(x)=(xーリ)@x)+0 SosModela) P(x)=(x-2)(x)+3 br cantolto

Mathematics Senior High over 4 yearsago

自分で翻訳してみても、何を求めるべきなのかがわかりませんでした💦 回答と解説お願いします🙇‍♂️

Write a rule in words and as an algebraic expression to model the relationship in each table. 19. The local video store charges a monthly membership fee of $5 and $2.25 per video. Videos (V) Cost (C) 1 $7.25 2 $9.50 3 $11.75

Mathematics Senior High over 5 yearsago

1枚目が私の間違えで、2枚目が答えです。 なぜ私の答えがダメなのですか？何故か答えに納得いきません…。

Sara kicked a football. The height of the ball (in meters above the ground) を seconds after Sara kicked it is modeled by ヵ(0 ニー5だ二204 Sara wants to know the height of the ball above the ground at its highest point. 1) Rewrite the function in a different form (factored or vertex) where the answerappears as a number in the equation. の=| 一57(7ー4) 2) At ts highest point, how farabove the ground was the ball 4 meters