Answer:
2i: 169.71
2ii: 0.17L
3a: 4×10⁻⁵
3b: 110011
Step-by-step explanation:
2i. The surface of the top and bottom of the tin is two times (top and bottom) π·r² = 2·π·3² = 18π cm².
The circumference of the circle is 2·π·r = 6π cm².
The area of the material connecting top and bottom is a rectangle of the tin height times the circumference: 6·6π = 36π cm².
This gives a total of 18π + 36π = 54π cm².
With π approximated by 22/7 the total surface area is 54*22/7 ≈ 169.71.
Notice how the calculation is simple by waiting until the very last moment to substitute π.
2ii. The volume is the area π·r² of the circle times the height of the tin: 9π*6 = 54π cm³ ≈ 169.71 cm³.
Since 1L = 1000 cm³ the volume is 0.16971 litres, which should be rounded to 0.17 L.
3a: If we rewrite P as 36 x 10⁻⁴ and realize that 36/2.25 = 16, then the fraction can be written as
16 x 10⁻⁴⁻⁶ = 16 x 10⁻¹⁰.
The square root of that is taking it to the power of 1/2, so (16x10⁻¹⁰)^0.5 = 4x10⁻⁵ = 0.00004
3b: 1111 1111 is 255 in decimal. 101 is 5 in decimal. 255/5 is 51 in decimal. 51 in binary is 110011.
7 goes into 38 five times with a remainder of 3.....of 5.43 when rounded
Answer:
(B)16
Step-by-step explanation:
please mark this answer as brainliest
Answer:
D: 32/5
Step-by-step explanation:
Given series is 8 -2 + 1/2 - 1/8+.....
to find the sum we use formula
where a is the first term
r is the common ratio
To find common ratio we divide second term by first term
a= 8
Now plug inthe values and find out the sum
sum = 32/ 5
Answer:
10/3 of a kitchen cabinet
Step-by-step explanation:
To make a full hour, 1/5 would be multiplied by 5- and so would their progress.
2/3 * 5 = 10/3, which is also an improper fraction.