想問第21題和23題 求解，謝謝～

Everybody loves chocolate. We eat chocolate candy and chocolate desserts. Even the word for chocolate is similar in most languages. Chocolate is 21 Mexico and the Indians there called it "chocolate." They ground beans from the cacao tree. They believed God sent them this special gift. In the 17th century, people in 22/God England started opening chocolate houses. People met there to talk and to drink chocolate. The custom of leaving tips for waiters 23. in chocolate houses. The Swiss were the first to make solid milk chocolate, is a mixture of chocolate, sugar, and milk. In the 1800s, there were wars in Ghana for years. When people started growing cacao trees, they stopped 25. 5. 7 In this way, chocolate brought peace to the Africans there. Today the largest suppliers of chocolate are Ghana, the Ivory Coast, and Nigeria. 21 (A) fond of (B) filled with 22. (A) whether (B) that (C) native to (C) what (D) covered in (D) where 23. (A) origin (B) original (C) originated (D) originality

求解3.4.5謝謝🙏🏻

Who lives in a pineapple under the sea? SpongeBob SquarePants _1_, along with Squidward, Gary, Patrick, Sandy, Mr. Krabs, Plankton, and Karen the computer wife. Created and designed by Stephen Hillenburg, SpongeBob is one of the world's most lovable characters. Before working for TV channel for children, Hillenburg 2 marine biology at the Ocean Institute in California in the 1980s. It was while working there that he first came up with the idea which ____3___ eventually become SpongeBob. It has always been difficult to figure out if SpongeBob is a teenager or an adult. In one episode, however, viewers get a glimpse of SpongeBob's driver's license and it clears everything up-sort of. It says SpongeBob's birthday is July 14, 1986, which means he 4 thirteen when the show hit the air in 1999, and he would be well over 36 by now. Another fun fact revealed: SpongeBob's hair is listed as "yellow," which means he 5 have hair. The color is the exact same color as the rest of his body. In other words, he isn't just a solid mass of bald yellow sponge. (A) do (B) does (C) have BAI. A2. (A) used to teach AB (A) has CA4. ADS. (A) must be (A) does 166) (B) may well teach (B) had (B) had been (B) needs (C) was used to teaching (C) will (C) could have been (C) might (D)has (D) couldn't help teaching (D) would (D) has to be (D) shall

想問這題解法，謝謝🙏

In Exercises 17–20, find the volume of the solid generated by revolv- ing the shaded region about the given axis. 19. About the y-axis 1 y x = tan (7) X

想問一下紫色螢光筆中 has been that的用法是什麼?

In March, scientists reported that a new distinct" layer in the Earth had been detected. Until recently, the standard teaching has been that the Earth is comprised of? four layers: 教書 the crust, mantle4, o'uter Core5, and inner core. The fifth layer is within the inner core, and is being referred to by geologists' as an inner-inner core. In order to study the inner core, scientists have used earthquake waves to create images of this region. Over the past few decades, this imaging has shown some anomalies that scientists cannot account forº. Some of the data seems to suggest that the core is not entirely solid iron as once thought. Now mineral physicists and geodynamicists 10 are working to create models that may help clarify the makeup12 of this newly discovered layer of the Earth. ||| 字詞大補帖 科學家在今年三月公布,他們發現地球有新的明 顯地層。直到最近,標準的教科書都會寫說地球的結 構有四層:即地殼、地函、外地核與內地核。這個第 五層位在內地核裡,地質學家稱之為內內地核。為了 1. distinct [distinkt] a. 明顯不同的 2. be comprised of... 由……組成 comprise [kam praz ] w. 包括,由…… 構成 死亡,於完动自重、由编制: 口国

有人可以解釋一下箭頭畫的地方是怎麼來的嗎？我知道目標是要把1-sin^2θ換成cos^2θ

985 Double Integrals and Volume EXAMPLE 5 14.2 Volume of a Region Bounded by Two Surfaces Find the volume of the solid region bounded above by the paraboloid Paraboloid z = 1 - x2 - y2 and below by the plane z = 1- y as shown in Figure 14.20. Plane Paraboloid: z=1 - x2 - y2 Plane: z=1-y Figure 14.20 Solution Equating z-values, you can determine that the intersection of the two surfaces occurs on the right circular cylinder given by 1- y = 1 - x2 - y2 x² = y - y². So, the region R in the xy-plane is a circle, as shown in Figure 14.21. Because the volume of the solid region is the difference between the volume under the paraboloid and the volume under the plane, you have Volume = (volume under paraboloid) – (volume under plane) Wyz? (1 – x2 - y2) dx dy – (1 – y) dx dy y-y2 Wy-y² 3 y-y2 R: 0 Sys1 -dy-y2 sxs dy-y2 Figure 14.21 - TT 4 SL -SI*6 = y2 + x) dx dy 6 – ymla - Kdy – year2 dy = 990 1.0 – (23 – 1,276? dy 4 2. 2y - 1 = sin e (7/2 cos4 e de 2 -1/2 1/2 cos4 do 1 d." 311 Wallis's Formula 6 16 TT 32

可以幫我排一下難易度嗎？ 我覺得好像差不多 但是只要寫一本 共3本 謝謝🙏

gniwoflol od 10 doinW OA sto ortul ONT (A) baroni od nso isdW JA ord bed vondt.95M lus (A) ylioblo adt (A) impact. Vesostition To Me (B) Oceans and the creatures in them. the covernatoqoqrad mazs verdwenly (C) A biological study and its findings. (0) (D) All drifting animals and algae in the oceans. 2 od tuoda a bomoloq as sy woH (0) 50. What is the purpose of the project mentioned in the third paragraph? (A) To remove junk in the ocean. oe bus cae! (B) To promote tourism in 210 regions. (a) (C) To survey marine organisms. yob (D) To provide more oxygen for the planet. 51 What does the word “mitigate” in the last paragraph probably mean? Luizasowuje s 2i 11 (C) (A) Emphasize. (B) Lessen. (C) Ignore. or cos w Torle (D) Generate. 52. According to the passage, what may happen if the amount of plankton drastically deceases? (A) The ocean may shrink. moms (B) Most marine creatures may die. otsa (5) (C) Diatoms may become prosperous. (D) It may worsen global warming.lus (CI raianpo lobbon To assolst od wolsa 8A 53.256.0 Ri de deprived on Nuclear energy is an appealing alternative to fossil fuels, because it is carbon free and hence doesn't contribute to global warming. However, the radioactive wastes generated after nuclear fission takes place are the principal environmental concern. They must be well disposed of in specially designed pools and then maintained in costly dry storage containers. They are highly radioactive, hazardous to humans even with short-term exposure. The disposal and storage of these radioactive isotopes as well as the decommissioned reactors cost taxpayers more than tens of millions of dollars annually. le; the White sed Scientists are dedicated to the reuse of nuclear wastes. The researchers at the University of Bristol in the U.K. are trying to encapsulate nuclear waste within diamonds. “The radiation is locked safely away inside the gemstone, meanwhile providing a clean energy supply like a long-lasting battery,” said the head of the team. They aim at carbon-14, a radioactive isotope with a half-life of around 5,730 years and available in graphite blocks used to cool the uranium rods. By heating the blocks, scientists convert carbon-14 into a gas and then gather it to form a kind of “diamond”- since diamonds are just another form of carbon. To safely block the short-range radiation it emits, scientists suggest the most solid substance on Earth, diamond, to contain it. A diamond beta-battery comes into being as a result. carly The same as what is confronting in dealing with nuclear waste stockpiles, the diamond battery is highly-priced, too expensive to manufacture. However, researchers are still holding an optimistic attitude toward it, speculating about its possible applications in anything where

18🙏🙏🙏

18 A cell engaged in phagocytosis must be A) engulfing a live organism B) acquiring a liquid C) engulfing a dead organism D) transporting bulk dissolved nutrients E) transporting bulk solid material

大一普化 5.36求解

5.38 9389 信4 5,42 sphere (about 30 Where the temperatu lbove the surface of Earth), >and presSure are 一235C : h gd 交 and 3.00 XX 10 atm, respectively. Calculate the final Volume of the balloon. The temperature ot 2.5 L of a gas initially at SUN increased to 2507”C at constant volume. Calculate the final pressure of the gas in atm. The pressure of 6.0 L of an ideal gas in aflexible contalner 1S decreased to one-third of its original presSure, and 1ts absolute temperature 1s decreased by one-half. What 1s the flnal volume of the gas? A gas evolved during the tfermentation of glucose (wine making) has a volume of 0.78 L when mea- sured at 20.1?C and 1.00 atm. What was the volume of this gas at the fermentation temperature of 36.5 C and 1.00 atm presSure? An ideal gas originally at 0.85 atm and 66”C was allowed to expand until its final Volume, preSSure, and temperature were 94 mL, 0.60 atm, and 45 C, respectively. What was its initial volume? The volume of a gas at STP is 488 mL. Calculate 1ts volume at 22.5 atm and 1507C. A gas at 772 mmHg and 35.0”C Qceuples a Volume of 6.85工. Calculate its volume at STEP. Dry ice is solid carbon dioxide. A 0.050-g sample ot dry ice js placed in an evacuated 4.6-L vessel at 30。C. Caleulate the pressure inside the VesSel after all the dry ice has been conVerted to CO gasS, Avolume of 0.280Lofagas at STP weighs 0.400 g. Calculate the molar mass Of the gas. Aquantity of gas Weighing 7.10g at741tor and 445C oeeupies a volume of 5.40L. What is its molar mass? Si人2 5.93 5.54 Dalt 和Ae0U76 5 5.56

9 10 請問為什麼

( 和 必 池 / 由 I 【 八 【 基 交 really ffrustrates me. ) /.Anew Set ot two collection bags was designed for the space suits. One is for Jiquid wasSte, and 1S for solid waste. (A) the other (B) other (C) another (D) one )8.Kim 也e doorbell for a while, but no one answered ffhe door (A) rings (B) had been ringing (C) has been Tinging (DJ) was fmg )9.Those in red uniformsfatg 也e Waitresses in 了is restaurant. You can ca them whenever you need any service. (A) dressed (B) dressed 了hemselves(B) dress_(D) who dressed ) 10.Iis to take this challenge, because you may be promoted 計you suecceed- ( A) worth“(B) worthwhile(C) worthy“(D) worthy 9 Gina always misunderstands Isay toher ) 11.Tcan'tfgure out 子 六

為什麼答案是d 🙏🙏🙏

Which of fhe following would NOT be considered an 旋fe7s/ve p/ope/fy describing an unknown sample? at is asolid at 25”C. bp)蔬has a density of 1.38 g/cm3. C)t melts at 62.0” C. djt has a volume of 0.52 cm3. e湃jS shiny.