求解～ 這題我用文氏圖但還是算不太出來 求解法😅😅😅😅

OHE0人中 "A^B、c三科抽考。 A及格者有有41人、B及格者有- 39人。C及格者有有和2人 , A、B不及烙者有14人,B、c不及格才 有13人。A、C不及格者有11人,至少有一科不及格者29人 : 求:(a)三科均不及格人數。 (b)至少有二科不及格之人數。 (o)只是A或B或C單科不及格者,各多少人?

我想問一下 有人手上有三年級直說講義（自然）的解答嗎？ 我不小心把解答弄丟了

我想問一下 有人手上有三年級直說講義（自然）的解答嗎？ 我不小心把解答弄丟了

求題目C🙏

he Secant line PO jpo 全 slope of tangent line GZ+ 全 bs 二Instantaneous velocity i i $ which is the same as the average velocity over the time interval [lg,d 十 四. Therefore 7 e the velocity at time # 三 d (the limit of these average velocities as娘 approaches 0) must 7 [be equal to the slope of the tangent line at (the limit of the slopes of the secant lines). Examples 1 and 2 show that in order to Solve tangent and velocity problems we must be able to find limits. After Studying methods for computing limits in the next four sec- tions, we Will return to the problems of finding tangents and velocities in Chapter 2 FIGURE 4 kk 1.4 EXERCISES , 1. ,A tank holds 1000 liters of water, which drains from the (a) IPis the point (15, 250) on the graph of V, find the bottom of the tank in half an hour. The values in the table slopes of the secant lines PO when O is the point on the show the volume / of water in the tank (in liters) graph_ with 二5, 10, 20,25,and 30. (b) .Estimate the slope ofthe tangent line 午 吃by averaging after 7 minutes- the slopes of two secant lines. | fr(min) S$ 2 30 (c) Use agraph of the function to estimate the slope of the tangent line at P. (This slope Tepresents the rate at which | YOD 28 必 the Water is 1s siowing, from the tank after 15 minutes.)

請問14題怎麼算？ 謝謝🙏🙏

謊/) 7 了有用 7水人 好 歷經族 (人4 量人螞, 當經有革的人點 和 釋放.其白動的路徑為A一O一BO ,則單白的氟動女數為何? 錠0:廓次 1多 劉B點再 過1.5 多[03次 ;,折位移一3 上 公交)? 甲、乙、丙三人騎際踏車沿筆直的公路自東前進, 0至5秒期間距離出發點的位置和時間的關你記欠 如下表所示,則在第3秒和第3入之回歸放全 的大小最多 ? 宮 「 時間 (秒) 4 Ti /Y,悟了7/ 7名

想問第3題 謝謝

求

es 一 詭計 計 說樣 《ee' 五、斷合測驗 :10% qs When we think of sleeping, We probably pieture a mic comfortable bed. We iT Sa s Jaying our heads ori big filuffy pillows and tying under nice Warm blankets. Most ami 一1. _, sleep in very different places. Sea otters, for instance, sleep on their backs Water and _2. don't drown.。 When giraffes get their forty Winks, they are use their hips as a pilow. And some creatures, like the Alpine Swift, can evend while nm fighf These _ 4. migratory birds travel thousands of kilometers between continen every year. On these extremely Jong Hlights, they stay in the Sky months at a fime. One Swiss study in 2013 showed that Alpine SWifts Temainl even Jonger than we imagined. Special sensors were attached to SiX bi Jocation and Speed _6. be measured at all times. The Iesearch team swifts could cover up to 10,000 km and go as long as 200 days 二一 Some __8._ thatAjpine Swifts don't sleep at all during these fiigh many agree 了hat they are capable of getting at ]eaSt some Shutreye makes 出em some of the coolest sleepers _10. . ttalso makes, 和u和Ter一pows or clouds? ( ) .(A)therefore (B) however 人 ) 2.(A) otherwise (B) thus CMAUable 江凶Rule ( ) 4(A)amaze (B) amazes ( ) 5%(A)wihin (B) during (0 00ust (B) might

求

五、綜合測驗:10% When we think of sleepi Jaying our heads ori big ftuffy pillows and lying under niee warm bl ,SjJeep in very different places. Sea otters, for instan' 2. don't drown. When giraffes get their forty Winks, tbey are water and _2. use fheir hips as a pillow. And some creatures, like the Alpine swWift, can even doze 0 | while in 各ght! These every year On these extremely 1ong 和ights, they stay in the Sky _5 , We prob: migratory birds trayel thousand ably picture a nice comtortable bed. We imagine ankets. Most antmals, ce, sleep on their backs in the | 蟬 人G | js of kilometers between continents Weeks and even months at a time. One Swiss study in 2013 showed that Alpine sSWitts remain in the air for even 1onger than we imagined. Special sensors w be measured at all timmes. The research team found that tte Jocafion and speed _6. swifts could cover up to 10,000 km and go as long as 200 days 和hatAlpine swWifts don't sleep atall during these flights Tecently. 9. Some 8 many ag nakes fhem some Of the coolest sleepers Juffier一piows Or clouds? ( ) 1L.(A) therefore ( ) 2.(A) otherwise )訪3(0a9l ) 4.(A)amazZe ) 5.(A) Within 0 must ree that they are capable oF getting 所 least some Shut- ere_ attached to SiX birds so that their Vanding! eye up in the Sky. This 10._. It also makes you Wonder which 3 (B) however (0C) fortunately (D) miraculousiy (B) thus (C) theretore (D)yet (B) sure (C) about (D) goimg (B) amazes (C) amazg (D) amazew (B) during (C) for (D) on (B) might (C) should (D)wil

第6題 能選A嗎？謝謝

ITIGUCTD72 1 !! 讓 也ousands Of k1llo 5 Weeks tle lu tgnt. 點 以 必 Tthese _失 migratory birds travel mely long flights, 了hey Stay im 了he Sky 和 ery eat. On theSe exttt s 所atitne. One SW1ss study in 2013 showed that Alpine SW1fts 和main 思 也ea 1 sensors Were attached to SIX birds SO 也3 an We imagined. Specla 6._be measured at all times. The research team found ft oas long as 200 days 凌 landing: during these, flightsr cently. 一 Wontt Ven longer th location_ and speed over up to 10,000 km and g that Alpine SWitts dont sleep at 和 e of getting at least Some Shut- 10. .I/also makes you wonder wh SWiWtS coultdc Some _$%. agree that they are cabatbl sormne ot the coolest sleepers tnany eye up mm thes tnakes thet Wuftiec一DillloWs 0r clouds? (Gb ) 1.(A) therefore (B) however (C) fortunately (D) miraculou 人 2/ ) 2.(A) otherwise (B) thus (C) therefore (D) yet ( / ) ) 3.(A) able (B) sure (0C) about (D) going ( C ) 4.(A) amaze (B) amazes (C) amazing (D) 時 ( U) 5.(A)Witbin (B) during (0) for (D) on ( 號 ) 6.(A) must (B) might (C) should (D) will 18

想問第5題 4個選項的答案怎麼出來的 謝謝🙏🙏🙏

不計開力,下苞要謂計em ,3w 生 二較慢若Hh 7 的盡全軍銜較長,,,。 比較慢著地 (B)甲球運動的3 過的路徑較長, 陵受的革力人 , 全國(GOZ球中 下梨的重力大,故乙球先著地、個關絲本li 語Bee地 ( 八《 22活圖為自由落體實驗, 經每同 20 秒照相請計得點紀錄。 下列、A 敘述哪一項是錯誤的? (Wu ~30公分生 (GO EF 之平均速度為 216 公分/秒“0此實驗 重力加速計為 測 圖記一52 由 了 條 960 公分/秘- 各廬Ad 全生交友Q 必/: 同 Si 為 人 太人 旬t ( /)6 有關自由落髒的相關敘述,下列何者錯誤? (質量說 還 ,其重力加速度移大_(B)自由落體是等加速度運動 (0下還! 程中,加速度、束度與位移方向相同 人Q自由洛財的人和和加卅還,, Jo.今 只 4 下 上卻 交 ] 和 不成正比關係 號 3 (選好 小鋼珠自 19.6 公尺高處自由落下的過程中,下列敘述何者錯誤? 個懲和 “落下的距離為49公居 (8第1秒末的瞬時速率為49 公尺/秒 (GQ小鋼珠帛有全人 時間為2秒_(D全程之平均速率為9.8 公尺/秒表戰 後,再落回原處。若不考慮空氣介力及浮力名 和 間虹 主 》革 晤.-圳 /和| /)8 小迪將一小球鉛直向上拋,達最高點