14. The number 524 000 is correct to k significant figures.(i) Explain why k cannot be 2.(ii) Write down the possible values of k.
1. 14. The number 524 000 is correct to k significant figures.(i) Explain why k cannot be 2.(ii) Write down the possible values of k.
Jawaban: Angka 524 000 benar untuk k angka penting.(i) Jelaskan mengapa k tidak bisa 2.(ii) Tuliskan kemungkinan nilai k.
2. When the value of a number is given, the significant figures provide an indication of theuncertainty in the value; for example, a value of 2.7 indicates that the number lies between2.65 and 2.75. Give ranges within which each of the following values lie.
design ......... ........
3. In the figure, the width of the border of the picture is x cm. The picture has an area of 160 cm². (i) Form an equation in x and show that it reduces to x² - 18x + 40 = 0. (ii) Solve the equation x² - 18x + 40 = 0, giving both your answers correct to 2 significant figures. (iii) Write down the width of the border, giving your answer correct to 2 significant figures.
Jawaban:
the answer is 3²×3÷5= eight hundred and thirty thousand rupiah
4. 1,17,98,354,.... what will be the next number in the series?
1 17 98 354<bilangan
16 81 256 <jarak antar bilangan
4 9 16 <akar kuadrat dari jarak antar bilangan
(1) 4 9 16
3 5 7 <jarak akar kuadrat
*jarak akar kuadrat merupakan bilangan ganjil
(3),5,7,9<>4,9,16,25
25x25=625
354+625=979
5. write the result according to the rule of significant figures a) 15.45 + 17.3669 = …. b) 2.560 x 0.203 = …
Jawaban:
a) 32.8169
b) 0.51968
maafkalo salah
6. Find the values of the unknown in each of the following figures:
Jawaban:
segitiga bca = segitiga sama kaki
jika sudut B= 27° maka sudut A= 27°
sehingga sudut C= 180°- 27°-27°=126°
sudutACD=180°-126°=54°
Penjelasan dengan langkah-langkah:
semoga membantu :)
7. the number of bacteria in a colony is 2^t+1, where t is the number of hours after the first observation. after how many hours will there be 1024 bacteria?
Jawab:
9,9 or if we round it is around 10 hours
Penjelasan dengan langkah-langkah:
Let say that the expansion equation is written down as:
f(x) = 2^t + 1, where f(x) is the amount of bacteria observed. Therefore, we can finish the question by:
f(x) = 2^t + 1
1024 = 2^t + 1
1023 = 2^t
Since we know that:
a^x = b ⇒ log(a)b = x, then:
t = log(2)1023
t = 9,9 or if we round it is around 10 hours
If anything in concern, don't hesitate to ask question :)
8. State the number of significant figures in each of the following. (a) 3800 m (correct to the nearest 10 m) (b) 25 000 km (correct to the nearest km) (c) 100 000 g (correct to the nearest 10 000 g)
Jawaban:
(a) 3.800 m = 380 m
(b) 25.000 km = 25.000 km (rounded to the nearest km)
(c) 100.000 g = 10 g
hope it's help
9. Mr.Vino : I think the goverment should add a green open space in our city. Ms Ida : agree a.It will increase the number of the unemployment people b.It will decrease the number of soil water c.It will make us feel alive d.It will decrease the pollution in the air e.It will be the place where you can sleep in the night
the answer is
D. It will decrease the pollution in the air
10. Rico has 1,568 balls in house his grand mother give him 254 balls he plan to move the balls into 32 places a) how many are there in each place? state the number of significant figures b) round off the number to 2 decimal places
So Rico has
1568+254=1822 balls
1822balls/32places=56.9375 balls/place ~ 56.94 balls/place
11. In 2017, the total land area of Hong Kong was about 1106 km² and the population was 7 392 000. Find the average number of people who lived on 1 km2 of the land. Give your answer correct to 3 significant figures
Penjelasan dengan langkah-langkah:
Average number of people who lived in 1 km² of the land = 7.392.000 : 1.106 km² = 6.683,544303...
or approximately about 6.683,544
12. Which statement is true? A Nucleon number = number of neutrons in the nucleus. B. Nucleon number = number of protons in the nucleus. C. Proton number = number of neutrons in the nucleus. D. Proton number = number of protons in the nucleus.
Jawaban:
D. Proton number= number of Pronto ini the nucleus
Penjelasan:
maaf kalo salah
13. How many figures in the story of thubellina?
ada berapa tokoh pada cerita thubellina?
14. express : a. 0,340258 correct to 4 significant figuresb. 10,2546 correct to 5 significant figuresc. 64704789 correct to 4 significant figuresmaksud dalam bahasa indonesia apa ya? + jawabannya
Maksud dari "significant figures" yaitu pembulatan.
a.) Pembulatan 4 digit dari 0,340258 => 0,3403
b.) Pembulatan 5 digit dari 10,2546 => 10,255
c.) Pembulatan 4 digit dari 64704789 => 64700000
Semoga membantu
15. find the value of the unknown in each of the following figures
b). Besarnya sudut segitiga sama kaki 180°
maka,
<a + <b + <c = 180°
68° + 64° + 2b° = 180°
132° + 2b° = 180°
2b = 180° - 132°
2b = 48°
b = 24°
d). <ABC = 180°
maka,
<a + <b + <c = 180°
3d° + 4d° + d° = 180°
8d° = 180°
d = 180° / 8°
d = 22,5°
f).<ABC = 180°
maka,
<a + <b + <c = 180°
f° + f° + f° = 180°
3f° = 180°
f = 180°/3°
f = 60°
16. the average (mean) of a list of 10 number is 0. if 72 and -12 are added to the list. the new average will be......
Average A / 10 = 0
Average A = 0 x 10
Average A = 0
Average A + 72 + (-12) / 10 + 2
= 0 + 60 / 12
= 60 / 12
= 5 -> the new average
17. Find the value of the unknown in each of the following figures
mboh aku gk ngerti ju woyyyyyy
18. Visual PresentationPractical HintsRefer to all illustrations in the textProvide a context to draw inferencesPlace them immediately after the firstcitation in the text✓ Number them consecutively-classify them astables and figuresPut the number and the title of the tableabove and that of the figures at the bottom artinya kak
Jawaban:
Presentasi Visual
Petunjuk Praktis
Lihat semua ilustrasi di teks
Sediakan konteks untuk menarik kesimpulan
Tempatkan segera setelah yang pertama
kutipan dalam teks
✓ Beri nomor secara berurutan dan klasifikasikan sebagai
tabel dan gambar
Cantumkan nomor dan judul tabel
di atas dan gambar di bawah
Penjelasan:
maaf kalo salah
19. Calculate the mass MR of the metre rule using the equation MR = M/ (G – 1) , where M = 20g. Record the value for MR to a suitable number of significant figures for this experiment.
Jawaban:
di suruh Ijah pengen beli mobil wajib di ikuti di dalam dewan pembina dan di luar rumah dulu ya gan di tunggu kunbal nya di buku tulis ulasan di grup yang sama dengan yang lainnya furniture di taman di dalam Pancasila dlm setiap hari Senin pihak pake seragam ini yg ga tau
20. Write in figures the number that is ten more than two hundred
210 that was Ultra simple
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