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Arada [10]
3 years ago
7

A kite with a string 50 meters long makes an angle of elevation of 58o with the ground, assuming the string is straight, how hig

h is the kite? Round your answer to the nearest tenth of a foot.
Mathematics
1 answer:
joja [24]3 years ago
4 0
String is the hypotenuse
angle is 58 degrees
sine (58) = height / 50
height = 50 * .84805
height = <span> <span> <span> 42.4025 </span> </span> </span>


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The finishing times, in minutes, for running marathons have an unknown distribution with mean 297 and standard deviation 32 minu
dangina [55]

Answer:

The mean for the sample mean distribution is 297 minutes.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

Using the Central Limit Theorem for Means, what is the mean for the sample mean distribution?

The mean is the same as the population mean, that is, 297 minutes.

7 0
4 years ago
Select all the situations that can be represented by 1/2⋅5. * 1 point Diego lives 5 miles from school, and Elena lives 1/2 as fa
SpyIntel [72]

Answer:

  • Elena lives 2.5 miles away from school.
  • The total liters of water is 2.5 liters
  • He can cut 10 pieces of rope of length 1/2 meter
  • The fraction of her goal she ran is 1/10

Step-by-step explanation:

From the question,

  • Diego lives 5 miles from school, and Elena lives 1/2 as far away as Diego

Therefore, Elena lives 1/2 of 5 miles away from school.

1/2 of 5 miles = 2.5 miles

Hence, Elena lives 2.5 miles away from school.

  • Jada has 5 bottles that each contain 1/2 liter of water.

Since each bottle contain 1/2 liter of water, then

The total liters of water is (1/2 × 5) liters

1/2 × 5 = 2.5 liters

Hence, the total liters of water is 2.5 liters

  • Noah has 5 meters of rope

To determine how many pieces of rope of length 1/2 meter he can cut,

Number of pieces of rope of length 1/2 meter that can be cut is 5 meter ÷ 1/2 meter

5 meter ÷ 1/2 meter = 10

Hence, he can cut 10 pieces of rope of length 1/2 meter.

  • Lin's goal is to run 5 miles. She ran 1/2 mile.

To determine what fraction of her goal that is,

First, she ran 1/2 mile out of 5 miles.

The fraction of her goal she ran is 1/2 mile ÷ 5 miles

1/2 mile ÷ 5 miles = 1/10

Hence, the fraction of her goal she ran is 1/10.

8 0
4 years ago
Which to temperatures have a sum of 0°C?
Murljashka [212]

Answer:

2°C and -2°C

Step-by-step explanation:

A number and its opposite sum to zero. (The "opposite" is the number with a minus sign instead of a plus sign, or vice versa.)

4 0
3 years ago
What is 9 plus 10???​
Anon25 [30]

Answer:

21

Here’s legitimate proof that 9+10=21

(9 + 10) (base x) = 21 (base y)

9(1) + [1(x) + 0(1)] = 2(y) + 1

Simplify and solve for y:

2y = 8 + x

y = 4 + x/2

Since we have number bases, we want x and y to be positive integers. The term x/2 requires that x be a positive even number.

Also since 9 is in base x, we have x ≥ 10, as the digit 9 would not be used for a base 9 or smaller.

Thus we have the pairs of solutions:

x = 10, so y = 9

x = 12, so y = 10

x = 14, so y = 12

…

x, y = 4 + x/2 … Therefore 9+10=21!

8 0
3 years ago
Help me please thank youuuuu ^_^
OverLord2011 [107]

Answer:

x = 6

Step-by-step explanation:

2x - 3 = 9

so 9+3 = 12, and 12÷2 = 6

the value of x is 6

5 0
2 years ago
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