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Paladinen [302]
3 years ago
10

Help please asap!! will mark brainliest!!!!! its timed

Mathematics
2 answers:
sammy [17]3 years ago
6 0

Answer:

m∠ABD = 140° and m∠DBC = 40°

Step-by-step explanation:

∵ ABC is a straight angle

∴ m∠ABD + m∠DBC = 180°

∴ 15x - 4 + 5x - 8 = 180

∴ 20x - 12 = 180

∴ 20x = 180 + 12

∴ 20x = 192

∴ x = 192/20 = 9.6

∴ m∠ABD = 15(9.6) - 4 = 144 - 4 = 140°

∴ m∠DBC = 180 - 140 = 40° ( 5(9.6) - 8 = 48 - 8 = 40°)

Kay [80]3 years ago
4 0

Answer:

<ABD = 140°

<DBC = 40°

Step-by-step explanation:

<ABD + <DBC = 180°

15x - 4 + 5x - 8 = 180

20x - 12 = 180

20x = 192

x = 9.6

<ABD = 15(9.6) - 4 = 140°

<DBC = 5(9.6) - 8 = 40°

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boyakko [2]

Answer:

The probability is 2.7327 \times 10^{-9}

Step-by-step explanation:

The probability of guessing correctly, P = 0.54

Probability of not guessing correctly, q = 1 – P  

q = 1 – 0.54 = 0.46

Number of trials, n = 32

Now calculate the probability that Mr. Taylor will pick 32 correctly in first round of the game.

Below is the calculation using binomial distribution.

Probability = \left ( _{k}^{n}\textrm{} \right )P^{k}(1-P)^{(n-k)} \\= \left ( _{32}^{32}\textrm{} \right )0.54^{32}(0.46)^{(32-32)} \\= 0.54^{32} \\= 2.7327 \times 10^{-9}

3 0
2 years ago
Miranda’s financial aid stipulates that her tuition not exceed $1200. If her college charges a $90 registration fee for the term
Arlecino [84]

Answer: the greatest number of courses for which miranda can register is 2

Step-by-step explanation:

Let x represent the number of courses for which Miranda can register.

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3 0
3 years ago
Someone please pass the answers to this
arsen [322]

Answer/Step-by-step explanation:

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Area of the triangle = ½*base*height

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Area of rectangle = length * width

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Width = 4 ft

Area of rectangle = 8*4 = 32 ft²

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radius (r) = 3 cm

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Area = ½*6*6 = 6 cm²

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5 0
2 years ago
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Vilka [71]

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