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Alenkinab [10]
2 years ago
10

Which comparison is not correct?A. -2 > -7B. 1 -8c. -3 > -8D. 6 > 5

Mathematics
1 answer:
Gnom [1K]2 years ago
6 0
C is the answer I think
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Polynormual sum of (x^2+9)+(-3x^2-11x+4)
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Answer:

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Step-by-step explanation:

xbsahcbszhjbcjhsbjcvh

5 0
2 years ago
1. A plane is flying at an altitude of 13000 feet. The angle of depression from the plane to a control tower is 20 degrees. The
Mariulka [41]

Answer:

see explanation

Step-by-step explanation:

There is a right triangle formed between the height above the tower to the plane, the horizontal and the line from the tower to the plane.

The height above the tower to the plane = 13000 - 150 = 12850 ft

The angle between the plane and the tower is 20° , angle of depression.

Using the tangent ratio in the right triangle formed, with the adjacent side being the horizontal ( hor ) distance, then

tan20° = \frac{opposite}{adjacent} = \frac{12850}{hor} ( multiply both sides by hor)

hor × tan20° = 12850 ( divide both sides by tan20° )

hor = \frac{12850}{tan20} ≈ 35305 ft ( to the nearest foot )

(2)

Arianna is 60 + 5 = 65 ft above the ground ( to her eye level )

Using the right triangle formed with legs 65 and 37  and angle of depression x, then

tanx° = \frac{opposite}{adjacent} = \frac{37}{65} , thus

x = tan^{-1} (\frac{37}{65} ) ≈ 30° ( to the nearest degree )

4 0
3 years ago
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What would the world be like without math or money? why
Phantasy [73]
Everyone would be confused because they wouldnt know how to add. if there wasnt money then there with be no objects/food/toys/ect. unless its all free. If it all free then everyone would go crazy because they wouldnt have to calculate how much the item cost.
8 0
3 years ago
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Find the value of x given the figure below.
kogti [31]
Here’s the step-by-step answer!

5 0
3 years ago
Help againnnn!!!!!!!
puteri [66]
P(8)=\dfrac{8\cdot(8+1)\cdot(2\cdot8+1)}{6}=\dfrac{8\cdot9\cdot17}{6}=\dfrac{1224}{6}=\boxed{204}

Answer A.
3 0
3 years ago
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