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Aleonysh [2.5K]
3 years ago
7

Can someone help me with this diagram problem?

Mathematics
1 answer:
mart [117]3 years ago
6 0

Answer: the diagonal is 10 units

Step-by-step explanation:

The rectangle has 2 parallel and equal sides. Each of the 4 angles in a rectangle is 90°. Therefore, the diagonal of the rectangle divides it into 2 equal right angle triangles and the diagonal represents the hypotenuse of both right triangles.

To determine the length of the diagonal of the rectangle, d, , we would apply Pythagoras theorem which is expressed as

Hypotenuse² = opposite side² + adjacent side²

Therefore

d² = 5² + (5√3)²

d² = 25 + 25×3 = 100

d = √100

d = 10 units

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The average fuel efficiency of U.S. light vehicles for 2005 was 21 mpg. If the standard deviation of the population was 2.9 and
statuscvo [17]

Answer:

1) The probability that the mean mpg for a random sample of 25 light vehicles is 0.042341.

2) between 20 and 25 --> 21-25/2.9 = -1.38

Step-by-step explanation:

Problem #1:

  • Using the z-score formula, z = (x-μ)/σ/n, where x is the raw score = 20 mpg,μ is the population mean = 21 mpg , σ is the population standard deviation = 2.9, n = random number of samples.
<h3><u>X < 20</u></h3>
  • = z = 20 - 21/2.9/√25
  • = z = -1/2.9/5
  • = z = -1.72414
<h2><u><em>Now</em></u></h2>

<em>P-value from Z-Table:</em>

<h3><u>P(x<20) = 0.042341</u></h3>

Problem #2:

<h3>21-25/2.9 = -1.38</h3>
6 0
3 years ago
Factor the following equation: 4x^2 – 81
pishuonlain [190]
The answer is:
(2x+9)(2x-9)
3 0
4 years ago
A diver was 40 feet below the surface of the water. A fisherman was casting off a dock right above the diver that was 12 feet ab
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Answer:

The answer is D.

Step-by-step explanation:

It is D because they cannot be negative feet away and if the fisherman is 12ft above water and the diver is 40ft below than 40 + 12 = 52. Hope this helps.

5 0
3 years ago
Select all the expressions that all have the following quotient 2m+3
Leno4ka [110]

Answer:

1, 2 and 4

Step-by-step explanation:

1.32m2/16m +48m/16m =2m +3

2.4m2/2m +6m/2m =2m+3

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LiRa [457]

Answer:

option B is correct answer

because it is similar by AA similarity -.theorum

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3 years ago
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