這三題該怎麼算 謝謝！

12. 將二紅球,二白球,二黑球,二黄球(同色球外觀均不可分辨),裝入兩相同的袋中,每袋裝四顆,共有 種裝法。(球在袋中沒有順序上的差別)

想問第一張照片和第二張照片的D🙇🏻‍♀️🙇🏻‍♀️

(A)=0.0 4. 考慮坐標平面上的點(0,0)、A、B、C、D、E、F、G, 如右圖所示,其中B點、C與D點,E與F點、G與A點依 序在第一、二、三、四象限內,若,為坐標平面上的向量,且 滿足.O420及1. OB>0,則下與下列哪些向量的內積一定x直 B D x • E 0 •A ( 小於0?(多選) (A) OC (B) OD (B) OD (COE (D) OF (E) OG 【111學測數B】

求這三題的過程 謝謝！

L000 In exercises 37-39, determine values of a and b that make the given function continuous. zeros at f(x) #C Some nu Theorer 2 sin x if x < 0 unction continu- X nction should be 37. f(x)= a if x=0 bcosx if x>0 52. For fo Does t

求解E選項

7元 2 an(2x =tan 2x 2л 3. y = sinx 有3個交點,故有3個相異實根 5. 上下細小為24 倍 1. (09 119 12.4 y=sinx 1 0 2 -tan (2x-2) 2元 1. 3 cosa I 左右搞小為, ˙倍 Round 35 46 52 65 1254&W 1 《解析》 12 smart E f(x)= 向下平移 2 E)-2 A 10.如右圖,已知a>0,b>0,函數 = a sin bx 的圖形通過最高點P(3,2)及 最低點Q(9-2),下列敘述何者正確? 13.27 (單選,9分) (A)振幅為了~ TL (B)振幅為6 Q ().-2) 左右縮為 = 12b=6 (C)週期為12元 (D)圖形對稱於x=6 (6)圖形對稱於x=2019 (16屏東女中) 106 新店高中 6.6元 + 公升和最 氣體積y 1 2 6 62 6 √3 2 cost= 320. C0318 2 sin-the 40030-30050 26058 13 27030 11. 某風景區有一著名的海上步道,以步道為基準,海水水位高度高於步道為正,低 下妻早 張落的記錄表 2058 KU

答案是4跟 5 🙏🙏

THE 9. 若方程式f(x)=(x+1)(x+2)(x+k)+28=0,有整數根,且為整數,則k的值為下列 何者? (1)-22 (3)-17 (5)-11 (2) -19 (4) −14

想請問這兩題，謝謝🙇‍♀️

1 With thirty-five active volcanoes, Iceland is known as a land of seismic activity. In April 2 bringing chaos to transportation systems across a minor volcanic eruption on the island Europe. The eruption, 3 the Eyjafjallajökull glacier in southwestern Iceland, released clouds of ash that drifted across several countries in northern and Western Europe. For several days, nearly all flight in the region were with hundreds of thousands of passengers unable to start their 4 journeys or _5_stranded abroad. Pec (A) that was (B) there was (C) what was (D) it was QA (A) ended up (B) got involved in (C) gave rise to (D) arose out of

求解

39 2.若三次函數 f(x)=-2x' +6x²-2,則/(3+5/7)+f(-1-5.5)= 3.已知三次函數y=f(x)的對稱中心點為(1,2) 且點 (2,1)與(3,-12)在此三次函數圖形上,若f(x)=a(x-h)+b(x-h)+k, 則數對(a,b,h,k)= f(x) = a(x-1)3+6(x-1)+2 1 T O The it IT 10

想問這一題

一等比級數之比,前n项和Sn=48,前2n 項和 Szn = 60,則前3n項和Sam= 63: λ= 解 V # 若 答:63,3 Sn. Son-Sn S3n-Son 國 D 36 48 12.x-60 48 3 6. 144=48x-2880 288 288000 48 S 3024 = 481 48/3024 288 The *

求解

依 THE 6從0.1.2.2.3.3.3.4.5數字堆中:則: (1)任意取三個相異之汉字.可排放個三位权 (2)承第(小小小題,这些三位权中,有個3的倍权 (3)任取4個权字排成4位权,可排成 個4位权 DATE.

求解第二題

10.一盒中有10個球,球上分別印有號碼1,2,3,4, ****** 10,試求: (1)由盒中一次取4球,則4球之號碼中第二小數目是5的情形有幾種?(5分) ②由盒中一次取4球,則4球之號碼恰2個連續自然數的情形有幾種? (1) 如:(1,2,4,7),(3,5,7,8),(2,5,6,9)(5分) -5 4x C2 = 40 (2) 12345678910 (1.2)、(9.10): other C2x2=42 C₁₂ x7 = 105 9組 42+105-2組連2 = 147-C2