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kakasveta [241]
3 years ago
15

3x(2x-7y)-8x(x+2y)+2y(4x-y)

Mathematics
2 answers:
pickupchik [31]3 years ago
6 0

Answer: you're correct.

Brainliest or a thank you please :)) <3

dusya [7]3 years ago
3 0

Answer:

It is -2 x^2 -13xy- 16ux - 2y^2

Step-by-step explanation:

Hope this helps :)

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Select the statement that is FALSE. The range is never greater than the greatest value of a data set. The interquartile range is
Nata [24]

Answer:

The interquartile range is the difference between the highest and lowest values in the middle of a data set.

Step-by-step explanation:

The range is the difference between the maximum and minimum value, hence, it cannot be greater than the maximum value, which is the greatest value in a dataset, the highest value a range could have being equal to the maximum value when the minimum vlaue of the dataset is equal to 0.

The mean is the average value of a dataset, hence, it cannot be greater than the maximum value.

The interquartile range is the middle 50% or half of a dataset and not the difference between the highest and lowest middle values in the middle. It is obtained by taking the difference of the upper and lower QUARTILE.

6 0
3 years ago
Which graph shows the rotation of the shape above, 90° counterclockwise about the origin?​
lara31 [8.8K]

Answer:

W

Step-by-step explanation:

the rule of a 90⁰ counterclockwise rotation is (x,y) -> (-y,x)

For example, if you rotated a point at (3,2) by 90⁰ counterclockwise. You would change it to (-2,3).

5 0
3 years ago
A helicopter hovers 500 feet above a small island. The figure shows that the angle of
Tamiku [17]

Answer:

435 ft

Step-by-step explanation:

Reference angle = <P = 49° (angle of elevation)

Opposite side = 500 ft

Adjacent side = d = ?

Apply trigonometric function, TOA.

This:

Tan P = opp/adj

Tan 49 = 500/d

d × Tan 49 = 500

d = 500/Tan 49

d = 434.643369 ≈ 435 ft (to the nearest foot)

6 0
3 years ago
Please<br> Help !!!!!!!!!!!
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