1,276.
A.
64πcm2
B.
12Oπcm2
C.
184πcm2
D.
200πcm2
E.
32Oπcm2
Correct answer is C
No explanation has been provided for this answer.
1,277.
A.
21cm2
B.
4Ocm2
C.
8Ocm2
D.
150cm2
E.
300cm2
Correct answer is B
No explanation has been provided for this answer.
1,278.
A.
6400πkm
B.
6400km/π
C.
3200πkm
D.
3200km
E.
3200km/π
Correct answer is C
P(67°W, 0°N)
Q(67°W 90°N), R = 6400km
Distance PQ =
90/360 x 2 x 6400 π
= 3200πkm
1,279.
MZ = 152 - 122 = 9cm
YZ = 9 + 5 = 14cm
A.
9cm
B.
12cm
C.
14cm
D.
19.85cm
E.
23cm
Correct answer is C
XM = √132 - 52 = 12cm
MZ = 152 - 122 = 9cm
YZ = 9 + 5 = 14cm
1,280.
P varies inversely as the square of W. When W = 4, P = 9. Find the value of P when W = 9
A.
729/16
B.
6
C.
4
D.
16/9
E.
4/3
Correct answer is D
P α 1/w2; P = K/W2
9 = K/42; 9 = K/16
K = 9 x 16 = 144
P = K/W2; when w = 9
P = 144/92 = 144/81 = 16/9
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