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Alex777 [14]
3 years ago
5

3 1/8 + 8 2/9 - 1 1/2

Mathematics
2 answers:
ZanzabumX [31]3 years ago
8 0

Answer: CORRECT ME IF I'M WRONG. 9.84722222222 OR 9 61/72

Step-by-step explanation:

3

1

8

+8

2

9

−1

1

2

=

25

8

+8

2

9

−1

1

2

=

25

8

+

74

9

−1

1

2

=

817

72

−1

1

2

=

817

72

−

3

2

=

709

72

=9

61

72

ololo11 [35]3 years ago
5 0

Answer: 7.48611111111111111........

Step-by-step explanation:

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A plane is flying within sight of the Gateway Arch in St. Louis, Missouri, at an elevation of 30,000 ft. The pilot would like to
Maurinko [17]

Answer:

X = 33,669.78 ft

Y = 15285.76 ft

Step-by-step explanation:

Given data:

let x be the distance btwn arch and plane

and y be the distance btwn  ground point  and arch y

we know that

cos\theta =  \frac{adjacent}{hypotaneous}

cos(27) = \frac{30,000}{x}

xcos27 = 30000

x = \frac{30000}{cos 27}

x = 33,669.78 ft

b) we knwo that

tan \theta  = \frac{opposite}{adjacent}

tan 27 = \frac{y}{30000}

y = tan(27) (30000)

y = 15285.76 ft

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3 years ago
Emma has saved £1.35 in 5p coins. How many 5p coins does Emma have?
valentinak56 [21]
To make calculation easier, we first multiply
1.35 × 100 = 135

then we need to find how many groups of 5 are there in 135.
to do so, we simply take 
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therefore, the answer is <u>27.</u>
8 0
3 years ago
All of the following are equivalent to 2(2 a+ b) + 8 except __________
Masteriza [31]
2 * (2a + b) + 8 = 4a + 2b + 8
------------------------------------------
A.  =
B.  =
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D. =
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Celia bought a bag of 1212 goldfish for \$3$3. What is the cost of 11 goldfish?
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7 0
3 years ago
A room has three lightbulbs. Each one has a 30% probability of burning out within the month. Write the probability as a percenta
lesantik [10]

Answer:

97.3%

Step-by-step explanation:

Let the three bulbs be A, B and C respectively.

Let P(A) denote the probability that the first bulb will burn out

Let P(B) denote the probability that the second bulb will burn out

Let P(C) denote the probability that the third bulb will burn out

Now, we are told that Each one has a 30% probability of burning out within the month.

Thus;

P(A) = P(B) = P(C) = 30% = 0.3

Now, probability that at the end of the month at least one of the bulbs will be lit will be given as;

P(at least one bulb will be lit) = 1 - (P(A) × P(B) × P(C))

P(at least one bulb will be lit) = 1 - (0.3 × 0.3 × 0.3) = 0.973 = 97.3%

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3 years ago
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