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posledela
3 years ago
14

Please be neat will mark brain

Mathematics
1 answer:
lubasha [3.4K]3 years ago
4 0

Answer:

1) 65\textdegree

2) 44\textdegree

3) 107\textdegree

4) 82\textdegree

Step-by-step explanation:

1) Since the whole angle is 180\textdegree, and to find the other angle, which is labeled as x, you subtract 115\textdegree from 180\textdegree:

180 - 115 = 65

x = 65\textdegree

2) Since you already have two angle measures 46\textdegree and 90\textdegree, you add them up and subtract it from 180\textdegree to get the angle measure for x:

46 + 90 = 136

180 - 136 = 44

x = 44\textdegree

3) Same thing from number 1. Subtract 73\textdegree from 180\textdegree:

180 - 73 = 107

x = 107\textdegree

4) Same thing from number 2. Add 52\textdegree and 46\textdegree and subtract it from 180\textdegree:

52 + 46 = 98

180 - 98 = 82

x = 82\textdegree

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ou find a deck of cards and know that the deck has too many clubs and spades in it. The deck has 59 cards. If you were to draw t
sashaice [31]
We can find the number of extra clubs in the deck from the given probability, since the probability of drawing a diamond and a club is

\dfrac{\binom{13}1\binom{13+c}1}{\binom{59}2}=\dfrac{13(13+c)}{1711}

but this would imply that c=-4, which suggests we're taking 4 clubs out of the original deck and contradicts the problem statement that there are "too many clubs".

Perhaps the question is providing the probability of drawing a diamond, THEN a club, or vice versa. In that case, we have

\dfrac{\binom{13}1}{\binom{59}1}\cdot\dfrac{\binom{13+c}1}{\binom{58}1}=\dfrac{13(13+c)}{3422}

and solving gives c=5, which makes more sense. Then the number of extra spades in the deck must be 2.
7 0
3 years ago
11.MARTIAN FINDS A SHIRT ON SLAE FOR 10% OFF AT A DEPARTMENT STORE. THE ORIGINAL PRICE WAS $20.Martain must also pay 8.5% sales
Snowcat [4.5K]
A. Find 10% of $20, which is $2. Then subtract the sale 20-2, which is $18
B. Since you know the price without taxes is $18, you have to multiply 8.5% of 18, which is $1.53. $18.00 + $1.53= $19.53

So the answer is $19.53


Hope this helped
5 0
3 years ago
Which number line represents the solution set for the inequality –4(x + 3) ≤ –2 – 2x?
const2013 [10]
-4(x + 3) < = -2 - 2x
-4x - 12 < = -2 - 2x
-4x + 2x < = -2 + 12
-2x < = 10
x > = -5

the correct number line will have closed circle on -5 with shading to the right
4 0
3 years ago
Read 2 more answers
Draw a line with slope zero. Name the type of Line
garri49 [273]

Answer:

Horizontal line has a slope of 0



7 0
3 years ago
A toy maker claims his best product has an average lifespan of exactly 14 years. A skeptical quality control specialist asks for
slamgirl [31]

Answer:

interval = [17.3948 , 20.6052]

Step-by-step explanation:

given,

random sample (n) = 45

average product lifespan = 19 years

standard deviation = 4 years

confidence interval of 99 %  = ?

we know,

t* = qt(1.99/2 + 44 ) = qt(0.995,44)

t* = 2.692

so,

interval

x = 19 \pm t* \times (\dfrac{s}{\sqrt{n}})

x = 19 \pm 2.692 \times (\dfrac{4}{\sqrt{45}})

x = 19 \pm 2.692 \times 0.5963

x = 19 \pm 1.6052

interval = [19 - 1.6052 , 19 + 1.6052]

interval = [17.3948 , 20.6052]

4 0
3 years ago
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