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astra-53 [7]
3 years ago
6

Please help with this practice so I can study for my final I am stuggling bad! I will give brainiest for the correct answers!

Mathematics
2 answers:
emmainna [20.7K]3 years ago
6 0

Answer:

17.25

Step-by-step explanation:

WARRIOR [948]3 years ago
3 0

Answer:

1) 102

2) x = 31°; y = 6

3) m = 28°, n = 31°

4) x = 79°

Step-by-step explanation:

1) Angle ABD = 180 - 2(69) = 42

Angle DBC = 180/3 = 60

Angle ABC = 42 + 60 = 102

2) Angle ABC = 180 - 2(59) = 62

x = 62/2

x = 31°

ABD and CBD are congruent triangles so y = 6

3) 118 = m + 90

Exterior angle = sum of interior angles

m = 118 - 90 = 28°

n = (180-118)/2 = 31°

4) x = (180-22)/2 = 79°

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Step-by-step explanation:

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3 years ago
Which expression is equivalent to -1/4( -1/2x - 3/4) -1/2 ( 3/4x + 1/8)
solniwko [45]

Answer:

Step-by-step explanation:

\frac{-1}{4}(\frac{-1}{2}x-\frac{3}{4})-\frac{1}{2}(\frac{3}{4}x+\frac{1}{8})\\\\=\frac{-1}{4}*\frac{-1}{2}x-\frac{-1}{4}*\frac{3}{4}-\frac{1}{2}*\frac{3}{4}x-\frac{1}{2}*\frac{1}{8}\\\\=\frac{1}{8}x+\frac{3}{16}-\frac{3}{8}x-\frac{1}{16}\\\\=\frac{1}{8}x-\frac{3}{8}x+\frac{3}{16}-\frac{1}{16}\\\\=\frac{(1-3)x}{8}+\frac{3-1}{16}\\\\=\frac{-2}{8}x+\frac{2}{16}\\\\=\frac{-1}{4}x+\frac{1}{4}

4 0
3 years ago
A binomial distribution
Alina [70]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
emma will roll two number cubes labeled 1 through 6. She will record the sum of the two numbers after each roll. She will roll t
SashulF [63]

Answer:

75 times

Step-by-step explanation:

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2=1,1

3=1,2 2,1

4=1,3 ; 2,2 ; 3,1

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6=1,5 ; 2,4 ; 3,3 ; 4,2 ; 5,1

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8=2,6 ; 3,5 ; 4,4 ; 5,3 ; 6,2

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12=6,6

Looking at the above, there are 4 sums equal to 5 out of a total of 36 sums.

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(5/36) x 540 = 75 times

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3 years ago
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