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3 years ago

Please help me A 3 B 9 C 41 D 1

Mathematics

1 answer:

Luden [163]3 years ago

7 0

Answer:

x = 9

Step-by-step explanation:

Opposite sides of a parallelogram are equal.

16x - 15 = 11x + 30 Subtract 11x from both sides

16x - 11x - 15 = 30 Combine the left

5x - 15 = 30 Add 15 to both sides

5x = 30 + 15 Combine the right

5x = 45 Divide by 5

5x/5 = 45/5

x = 9

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The probability that a plane departs on time at a certain airport is .87 The probability that a plane arrives on time given it d

sleet_krkn [62]

Answer:

0.9355

Step-by-step explanation:

What we will use here is conditional probability formula.

let A be the event that the plane departs on time

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3 years ago

One leg of a 45 - 45 - 90 triangle measures 10 inches. What is the length of the hypotenuse

djyliett [7]

Answer:

Therefore the length of the hypotenuse is 14.14 inches.

Step-by-step explanation:

Given:

The Triangle is of 45 -45 - 90

Length of one leg = 10 inches

To Find:

Length of the hypotenuse = ?

Solution:

The Triangle is of 45 -45 - 90 ..................Given

So For 45 - 45 - 90 Both the Legs of Triangle is SAME

i.e Longer leg = Shorter leg = 10 inches

Now in Right angle Triangle By Pythagoras Theorem we have

$(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}$

On substituting the values we get

$Hypotenuse^{2}= 10^{2}+ 10^{2} \\\\Hypotenuse^{2}=200\\Square\ Rooting\ we\ get\\Hypotenuse=\sqrt{200}=10\sqrt{2}=10\times 1.414=14.14\ inches$

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3 years ago

Is angle B a right angle ?

VMariaS [17]

Yes because it is a 90 degree angle which is a right angle

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3 years ago