4 A boy standing in the middle of two flag poles 78 m apart finds that the angle of elevation of the tops of the flag poles from the point where he is standing are 34° and 43° . Find the difference in the heights of the two flagpoles. [4]
1. 4 A boy standing in the middle of two flag poles 78 m apart finds that the angle of elevation of the tops of the flag poles from the point where he is standing are 34° and 43° . Find the difference in the heights of the two flagpoles. [4]
100+34)-77×77
Penjelasan dengan langkah-langkah:
pelajari dulu
2. There are two poles in the earth. If we look at the globe, we can find the two poles in the North andSouth. .... Of them are far from each other.D. NothingC. NoneB. BothA. All
Jawaban:
B. Both
Penjelasan:
Ada dua kutub di bumi. Jika kita melihat dunia, kita dapat menemukan dua kutub di Utara dan
Selatan. .... Dari mereka jauh dari satu sama lain.
3. 1.there are two poles in the world its are.... poles and... poles 2.the coluor is white and black it is on the street it is.. 3.there are... compass 4.the opposite of southeast is... 5.the opposite of north is...
1.there are two poles in the world its are NORTH poles and SOUTH poles 2.the coluor is white and black it is on the street it is ZEBRA CROSS 3.there are 8 compass 4.the opposite of southeast is Northwest 5.the opposite of north is south1. north ... south
2. zebra cross
3. points
4. northwest
5. south
4. Ben is 169cm tall. nicholas is y cm taller than Ben. Lee's height is hald of the total heigth of ben and Nicolas. a. Express Lee's height in terms of y. Total height of Ben and Nicholas; =________+_______= Lee's height = ____cm b. If Nicholas is 6 cm taller than Ben, how tall is Lee?
Ben = 169 cm
Nicholas is y cm taller than Ben:
Nicholas = 169 cm + y cm
= (169 + y) cm
a)
Total height of Ben and Nicholas:
169 cm + (169 + y) cm
= (169 + 169 + y) cm
= (338 + y) cm
Lee's height is half of the total height of Ben and Nicholas:
Lee's height in terms of y:
(338 + y) cm ÷ 2
= ([tex] \frac{338}{2}+ \frac{y}{2} [/tex]) cm
= (169 + [tex] \frac{y}{2} [/tex]) cm
b)
If Nicholas is 6 cm taller than Ben → y = 6 cm
Lee's height:
(169 + [tex] \frac{y}{2} [/tex]) cm
= (169 + [tex] \frac{6}{2} [/tex]) cm
= (169 + 3) cm
= 172 cm
5. b) the height of a 176 cm tall boy to the height of a 160cm tall girl
Jawaban:
tinggi 176 dan 160 cm dengan perbedaan sangat jau karena 176&160 lebi tinggi dari pada 160
6. The cuboid with length 16cm width 10cm and height of x cm has a volume of 4000cm cubic. Find its height
Volume of coboid
= LWH
16 × 10 × Height = 4000
160 × Height = 4000
Height
= 4000 ÷ 160
= 25 cm
7. find the surface area of a cylinder of radius 5cm and height 10cm
Jawaban:
=150πcm
Penjelalasan:
Given
The Radius of a solid cylinder (r)=5cm
Height (h)=10cm
Hence
Total surface area =2πrh+2πr
2
=2πr(h+r)
=2π×5(10+5)
=π×10×15
=150πcm
(don't forget to give thanks:)
8. A cone has a base area of 9pi*c * m ^ 2 and a volume of 12pi*c * m ^ 3 . Find its (a) height, (b) slant height, (c) total surface area.
Jawab:
(a.) 4 cm
(b.) 5 cm
(c.) 24π cm²
Penjelasan dengan langkah-langkah:
A cone has
base area (A) = 9π cm²
volume (V) = 12π cm³
(a.) height (h)
V = Ah/3
Ah = 3V
h = 3V/A
h = 3(12π)/9π
h = 3(12)/9
h = 12/3
h = 4 cm
(b.) Slant height (s)
s² = h² + (A/π)
s² = 4² + (9π/π)
s² = 16 + 9
s² = 25
s = √25
s = 5 cm
(c.) Surface area
√(A/π)(√(A/π)+s) π =
√(9π/π)(√(9π/π)+5) π =
√9((√9)+5) π =
3(3+5) π =
3(8) π =
24π cm²
[[ KLF ]]
9. What causes Aurora?A.Collisions of temperature and light in the polesB.Oxygen and nitrogen are collidedCCollisions between gaseous particles with charged particlesD.The extreme temperature of the poles
Jawaban:
A.Collisions of temperature and light in the poles
10. a sepak takraw that is kicked from a height of two meters?
Jawaban:
sebuah sepak takraw yang ditendang dari ketinggian dua meter?
11. What is the difference between earth geomagnetic poles and a geographic poles?
Jawaban:
Hari Surah Al-Fatihah kepada orang yang sedang kamu lakukannya rasa sakit hati kita akan ada yg ini biasanya mengebor ke dalam suatu gagasan dan dapat menyerap oksigen dari ordo Coleoptera
Penjelasan:
Ha tidur di kecamatan di kecamatan di rumah siput laut dan dapat digunakan sebagai☑ pecahan uang tunai di rumah sakit hati kita akan ada yang sedang berlangsung di rumah siput
Jawaban:
On Earth, the magnetic north pole is located on the edge of the Arctic Ocean while the magnetic south pole is located on the edge of the Antarctic landmass. The position of the magnetic north pole does not coincide with the geographic north pole as well as the magnetic south pole with the geographical south pole
12. find the surface area of a cylinder of radius 6cm and height 7cm
Penjelasan dengan langkah-langkah:
CIRCLE
r = 6 cm
h = 7 cm
S.a = 2πr(r + h)
S.a = 2 × 3,14 × 6 × (6 + 7)
S.a = 37,68 × 13
S.a = 489,84 cm² ✔13. a sepak takraw that is kicked from a height of two meters follows a path that is?
Jawaban:
sebuah sepak takraw yang ditendang dari ketinggian dua meter mengikuti jalan setapak itu?
14. When the unlike poles of two magnet are bought close to each other, there is a force of____between them.
Jawaban:
Whentheunlikepolesoftwomagnetareboughtclosetoeachother,thereisaforceofthebetween.
Penjelasan:
(Maafkalausalah)
Semogamembantu
15. Ryo's height is 150 cm and Adrian's height is 165 cm. What is the difference height of Ryo and Adrian ?
Penjelasan dengan langkah-langkah:
terjemahan ke bahasa Indonesia
Ryo memiliki tinggi 150 cm dan Adrian memilikinya tinggi 165 cm. Berapa beda (selisih) tinggi mereka?
jawab:
tinggi Ryo = 150 cm
tinggi Adrian = 165 cm
beda tinggi mereka
= tinggi Adrian - tinggi Ryo
= 165 cm - 150 cm
= 15 cm
16. find the volume of a cone of a base area 30 cm² and height 15 cm
Jawab:
150cm³
Penjelasan dengan langkah-langkah:
V=ABh
3=30·15
3=150cm³
17. The height of two plants is in the ratio 7:9.the height of the taller plant is 26 cm more than the height of the shorter plant.what is their total height?
s : t = 7 : 9 <=> 9s = 7t (s = shorter, t = taller)
t = s + 26
9s = 7t
9s = 7(s + 26)
9s = 7s + 182
2s = 182
s = 91
So
s + t
= s + s + 26
= 2s + 26
= 182 + 26
= 208 cm
◉‿◉
18. Which boxes have a volume of 120 cubic feet? Box A: length of 5 ft, width of 4 ft, height of 6 ft Box B: length of 7 ft, width of 7 ft, height of 6 ft Box C: length of 3 ft, width of 6 ft, height of 4 ft Box D: length of 10 ft, width of 3 ft, height of 4 ft 1; A and B 2; A and D 3; B and C 4; B and D Please help
Jawaban:
A AND B LEJHEJRKUEJEIRYJEGWNW
Answer:
Boxes A and D have a volume of 120 cubit feet.
Step-by-step explanation:
First, we just have to find the volume for each box so we do...
The volume of box A is:
(Length) x (Width) x (Height) = 5 ft x 4ft x 6ft = 120
The volume of box B is:
(Length) x (Width) x (Height) = 7ft x 7ft x 6ft = 294
The volume of box C is:
(Length) x (Width) x (Height) = 3ft x 6ft x 4ft = 72
The volume of box D is:
(Length) x (Width) x (Height) = 10ft x 3ft x 4ft = 120
Now we can see that boxes A and D have a volume of 120 cubit feet.
19. A cylinder has a height of 15cm and a volume of 500cm. Calculate the radius of the cylinder.
Jawaban:
10.6
Penjelasan dengan langkah-langkah:
diketahui:
t = 15 cm
v = 500 cm
ditanya:
r= ?...
rumus:
[tex] {r}^{2} = \frac{v}{\pi.t} [/tex]
[tex] = \frac{500}{3.14 \times 15} [/tex]
[tex] = \frac{500}{47.1} [/tex]
[tex] = 10.6[/tex]
sorry if this answer doesn't help
20. what is the hypotenuse of a triangle with a base of 7cm and height √240 cm
17 cm
Penjelasan dengan langkah-langkah:
r² = 7² + (√240)²
= 49 + 240
= 289
r = √288
= 17 cm
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