Question
Steel is used to make a hemispherical bowl that is 0.4
cm thick. The bowl's inner radius is 7 cm. Find the bowl's outside curved surface.Solution
Thickness =R-r 0.4cm =R-7 R=7.4cm. The curved surface of the hemispherical bowl =2 ΟR2 =2Γ22/7Γ7.4Γ7.4 =344.20cm2
If βAβ means (Γ·), βBβ means (Γ), βCβ means (+), and βDβ means (-), then ____ is the value of the expression.
25 A 5 B 8 D 6 C 4...
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
56 * 492 * 6 * 7 * 123 = 507
Select the correct combination of mathematical signs that can sequentially replace β*β sign and balance the equation given below.
54 * 2 * 4 ...
- Which two signs should be interchanged to correct the given equation?
5 + 3 Γ 8 β 12 Γ· 4 = 3 If 'A' stands for '-', 'B' stands for 'Γ', 'C' stands for '+', and 'D' stands for 'Γ·', then what is the value of the following expression.
54 D...
What will be the value of expression if the signs β(-)β and β(+)β are interchanged?
75 + 42 β 6 Γ 56 Γ· 7 + 6 Γ 3 β 2
...If 'A % B' means 'A + B', 'A # B' means 'A X B', 'A @ B' means 'A - B' and 'A $ B' means 'A Γ· B', then what is the value of the expression β13 # 19 %...
What will be the value of the given expression after the following interchanges?
Expression: 84 Γ· 11 - 15 X 14 + 75
Interchanges: Sign: '...
If β Γ β means β + β. β+β means βΓ·β, β-β means βΓβ and βΓ·β means β-β, then 9 Γ 8 β 5 + 40 Γ· 3 = (?)
...Which two signs need to be interchanged to make the following equation correct?
62 β 14 Γ 75 Γ· 15 + 50 = 82
