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Find the area of shaded region of circle of radius =7cm, if ∠AOB=70o, ∠COD=50o and ∠EOF=60o. (Ans:77cm2)
Ans: Ar( Sector AOB + Sector COD + Sector OEF)
= 70/360 Π x 72 + 50/360 Π x 72 + 60/360 Π x 72
49 Π ( 7/36 +5/36 + 6/36 ) = 49 Π x 18/36 = 49/2 x 22/7 = 77 cm2
A painting was purchased 11 years ago for $26900. It has just been sold for $78000. Calculate the flat rate of appreciation p.a.
A closed conical vessel of radius 36 cm and height 60 cm, has some water. When vertex is down then the height of water is 12 cm. What is the height of water when vertex is up?
3 1/2 x 1 4/7 x 1 1/3
How do you find the maxima or minima on a parabolic graph?
What decimal is represented by point A on the number line? The hash marks indicate units of 0.01 between 0.75 and 0.80. Point A is 0.77. See the ?gure below.
Determine the inverse of the following matrix, if it exists. We first form the new matrix through tacking onto the 3 x 3 identity matrix to this matrix. It is, We
One of two complementary angles is 80& of the other. What is the degree measure of the smaller angle?
The next kind of problem seems as the population problem. Back in the first order modeling section we looked at several population problems. In such problems we noticed a single po
4n to the power 3/2 = 8 to the power minus 1/3. find the value of n.
Definition 1: Given the function f (x ) then 1. f ( x ) is concave up in an interval I if all tangents to the curve on I are below the graph of f ( x ) . 2. f ( x ) is conca
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