help me please, thanks.

9. College-Educated Workers. Based on data from the U.S. Census Bureau, a Pew Research study showed that the percentage of employed individuals ages 25–29 who are college educated is at an all-time high. The study showed that the percentage of employed individuals aged 25-29 with at least a bachelor's degree in 2016 was 40%. In the year 2000, this percentage was 32%, in 1985 it was 25%, and in 1964 it was only 16% (Pew Research website). a. What is the population being studied in each of the four years in which Pew has data? b. What question was posed to each respondent? c. Do responses to the question provide categorical or quantitative data?

請問這題的(5）要怎麼算

動 3 =- 2 5 4. ( 50 = 360.0i =COS 2 2 03 - 16 46 ( 181 手做图設4,8,9,84 分別為第一、第二、第三及第四象限角,且都介於0到360°之間, Esin 0,1 = sin 0,1 = |sin 631 = | sin 0,1 = ,則下列哪些選項是正確的?(多選) 203 02 03 (1)0, < 45° (2) 0, +02=180° (3) cos6, (4) cos 5 2 3 (5)02=0z+90°• sing, = sinon (+。 2/3 sind 3 sino a = - -5 答 il sing, (3) coso – – I sing, a 45 (4, 02:18-003:18 +0. = (2, sing, = sin (18.0)=sing = sind, coso = cos( 18-01) , , : ) 19 Roco qoo, 0 <0iLqo collage = cos( quo 0 ) = sina 23 0,18-01 > 0. + 18 us as (18+) = cos 1904 s sin 45 = 12 2 (1:0,#4 1.2 O₂ = , 156 < 1 103 ) . '( sin 91

指數律 請問第三題怎麼寫 謝謝

(3)飛機約200公尺/秒 zo x 6 (4)聲音約340公尺/秒。 V. | 120. 3. 6 已知2+2=3,求下列各式的值: - a - 0 ra O 3 En (v2)+(12) (1) 4 +4" 。 (2) 8 +8 (° (2942-age 9 4 + 2 x 2 + 4 2 9 78 + 3 x 2 ² X 2 " + 3x 2² x 2 '+^"x + 8 8 已知4-5个,求ge-2.* 的值2. +8^+3x2 +3Ya 求 + 9 9 -29 -a 20 2 4 a a+2 a

這大題求解

II、綜合測驗:20% There are only a handful of underwater hotels around the world. These 16. guests to do what few people ever dream of doing: sleeping underwater. Fish, of course, do this all the time, but to humans the thought of 17._one's head on the seabed isn't very appealing. That's because mammals like us 18. have sufficient air to breathe. 19. _ ever wondered, therefore, how sea mammals, like whales, manage to get their beauty sleep? A number of 20. have attempted to answer this question. They seem to suggest that whales make use of an 21. sleep technique known as “logging.” During "logging," whales are 22. to shut down just one half of their brains. This enables them to get some much-needed rest, and yet at the same time remain alert enough to regularly return to the surface of the water to breathe. 23._ another sea creature that makes use of “logging" to survive is the dolphin. _24. Whales, which can remain underwater for up to ninety minutes, dolphins need to breathe in fresh air above the surface every twenty minutes. Thus for them it's even more important to keep half their brains awake at all times. Logging helps them 25. this. At the end of the day, this is just another example of how human and animal sleep habits are different in strange yet wonderful ways- ( ) 16. (A) let (B) allow (C) make (D) have ( ) 17. (A) throwing (B) burying (C) laying (D) lying ) 18. (A) must (B) may (C) can (D) will ( ) 19. (A) Will you (B) Do you (C) Are you (D) Have you ( ) 20. (A) secrets (B) habits (C) studies (D) facts ) 21. (A) amazed (B) amazing (C) amaze (D) amazingly ( ) 22. (A) able (B) possible (C) capable (D) likely ) 23. (A) Just (B) So (C) Also (D) Yet ) 24. (A) As (D) Unlike ) 25. (A) achieving (B) achieve (C) be achieved (D) to achieving (B) TO (C) With V. 文意選填:10%(請忽略大小寫) A) in fact (B) however (C) amazing (D) standing (E) much Animals sleep in incredible ways. They don't need to lie in bed for hours like we do. Zebra phants, for example, can stay 26. while they sleep. This odd sleeping position comfortable, but it's 27. safer. Predators are always around to catch sleepy prey a phants, therefore, are only away in dreamland for around 3.5 hours a day. Zebras are reported a less. Giraffes, 28. sleep the least of any animal. An average of half an hour per day is hey need to survive in the wild. 29. they hardly ever sleep for more than five minutes af fost and for less than an hour a day?

高一的，我不太會算，求解

977 小叔支後共有十位字,最末了立宇。 1 1 5 630 MESSAGE

怎麼知道0.42=log2.63?

36 第3章 指數、對數函數 0 A 若 logk=842,則人的整數部分有9位,最高位數字為Z,是從小數點後第 9位始不為0,此不為0的數字為3 logk=E.42 = 8+042 =lagolo8+logso 2.mn -legio Zm-/o8 logo te= log1ok = logiok =- 8.42 = -9 +0.58= logolo " + logo 3. lager, 3 x 159 - - - 合的記號為

高一上的指數 想問為什麼不能這樣算 還是我哪裡算錯了 答案是2根號2減1 謝謝!!

二 求 21 +27 GP :* 7 (3943-9). : (39+3 age = 99 + 279-9 = +1+2+ } 3943-a 下+1 二、進階題 - 545-5-| z]+) a = 20.3 b = 20.01 選出正確的選項 0 || 后又

求解

8. > 為配合畢業生申請國外研究所需要,我國 「許多大學已開始採用「等第績分平均( GPA)」來評估學生成績。所謂 GPA( Grade Point Average),是透過轉換機制, 將原始成績轉換為0至4分,0代表不及格 ,其餘分數愈高,成績愈佳。已知某校一 年級 873 名學生成績如附表,試求: GPA 0 1 2 3 4 人數 63 104 269 312 125 167 436 748 873 累計人數 63 1 (1)第80百分位数(PR)。 (2)第25百分位數(Ps)。(素養題】

這題怎麼算？

13. 平面上兩個非零向量立與否,已知己與方不行,令p=att5,其中1為實數,當t=1 時 p為最小,並令Datab,請問下列哪些選敘述為真? 4x+1 (A)必與垂直(B)必與垂直(C)若ub<0,则fo>0 (D)mage 必成立 5 (E) |<b必成立, m= (15)

請問這題該怎麼思考??🙏🏻

( 010. 將“abscissa”八個字排成一列,若b,c,r”的順序不變,其 排法有幾種? (A) 240 (B) 360 ( (D) 720 CA (E) 1440 【答】C (C) 560 201