2 years ago

Which angle measures represent an acute triangle?

1 answer:

8 0

Acute triangles have angle measures that are less than 90°, so here are your three answers:

20°, 80°, and 80°

60°, 60°, and 60°

25°, 75°, and 80°

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What is the distance between (3, 7 and (15, 16)

Artist 52 [7]

D = √( (x2 - x1)^2 + (y2 - y1)^2 )
D = √( (15-3)^2 + (16 - 7)^2 )
D = √ ( 12^2 + 9^2 )
D = √ (144 + 81)
D = √225
D = 15

4 0

3 years ago

For y = 3x - 2x^2 +5x^3 show how to find the value for y, when x = 3. Show your work

Mnenie [13.5K]

$y \: = \: f(x) \: = \: 3x \: - \: 2 {x}^{2} \: + \: 5 {x}^{3}$
Here, y is a cubic function of x.
When x = 3,
$y \: = \: f(3) \: = \: 3(3) \: - \: 2 {(3)}^{2} \: + \: 5 {(3)}^{3}$
$y \: = \: 9 \: - \: 18 \: + \: 135$
$y \: = \: f(3) \: = \: 126$
Hence, when x = 3, y = 126.

8 0

2 years ago

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What is the 12th term in the sequence? an=−16+2n Enter your answer in the box.

Elis [28]