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musickatia [10]
3 years ago
12

If ZC and ZD are supplementary and mZC = 67°, find mZD

Mathematics
1 answer:
arsen [322]3 years ago
8 0

Answer:

m∠ZD = 113°

Step-by-step explanation:

ZC and ZD are supplementary (180°)

m∠ZD = 180° - m∠ZC

m∠ZD = 180° - 67°

m∠ZD = 113°

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Forty percent of households say they would feel secure if they had $50,000 in savings. you randomly select 8 households and ask
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Since, the binomial distribution formula,

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(b) the probability of the number that say they would feel secure is more than five

P(X>5) = P(X=6)+ P(X=7) + P(X=8)

=^8C_6 (0.4)^6 (0.6)^{8-6}+^8C_7 (0.4)^7 (0.6)^{8-7}+^8C_8 (0.4)^8 (0.6)^{8-8}

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=^8C_0 (0.4)^0(0.6)^{8-0}+^8C_1(0.4)^1(0.6)^{8-1}+^8C_2 (0.4)^2 (0.6)^{8-2}+8C_3 (0.4)^3 (0.6)^{8-3}+8C_4 (0.4)^4 (0.6)^{8-4}+8C_5(0.4)^5 (0.6)^{8-5}

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