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seropon [69]
2 years ago
6

Increase 69 L by 28%​

Mathematics
2 answers:
Anton [14]2 years ago
8 0

Answer:

88.32 L

Step-by-step explanation:

69x1.28= 88.32 L

Zina [86]2 years ago
4 0
The correct answer is 88.32L
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Romashka [77]

Given:

m∠DAE = 30°

m∠CBE = 20°

To find:

The value of x.

Solution:

In rectangle, all angles are right angle.

m∠A = m∠B = m∠C = m∠D = 90°

m∠EDA + m∠EAB = 90°

30° + m∠EAB = 90°

m∠EAB = 90° - 30°

m∠EAB = 60°

Similarly, m∠CBE + m∠EBA = 90°

20° + m∠EBA = 90°

m∠EBA = 90° - 20°

m∠EBA = 70°

In triangle AEB,

Sum of all angles in a triangle = 180°

m∠EAB + m∠AEB +m∠EBA = 180°

60° + x° + 70° = 180°

130° + x° = 180°

Subtract 130° from both sides, we get

x° = 50°

x = 50

The value of x is 50.

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3 years ago
Cos130° = _____<br><br> -cos50°<br> cos50°<br> cos(-50°)
klemol [59]

Answer:

cos(-50°)

Step-by-step explanation:

6 0
3 years ago
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Match the word with its definition
Inessa05 [86]

Answer:

#1- definition #2

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Step-by-step explanation:

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3 years ago
The final scores of students in a graduate course are distributed normally with a mean of 72 and a standard deviation of 5. What
Tcecarenko [31]

Answer:

0.8041

Step-by-step explanation:

We know that  

μ=72  and  σ=5

and P(65<X<78)

We can determine the Z value as (X-μ)/σ

P( 65<X<78 )=P( 65-72< X-μ<78-72)

P((65-72)/5

P(65

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P (-1.4

From the standard normal tables:

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P ( Z

From the standard normal tables:

P ( Z

Therefore

P(-1.4

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3 years ago
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