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2 years ago

Always sometimes never: one angle in a triangle is more than 90°

Mathematics

2 answers:

ELEN [110]2 years ago

7 0

Answer:

sometimes

Step-by-step explanation:

olga2289 [7]2 years ago

4 0

Answer:

sometimes

Step-by-step explanation:

it can be only possible in case of obtuse triangle.

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If f ( x ) = 2 x - 5, then f (4) is _____. 3 5 4 17

ICE Princess25 [194]

The answer is 3

if you substitute x as 4 then it would be 2 x 4 = 8

8-5=3

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2 years ago

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Pls help me in these two little exercises about the slope.

den301095 [7]

Answer:

3) $y=\dfrac35x+\dfrac25$

4) a) $y=-2x+7$

b) $y=\dfrac12x+\dfrac92$

Step-by-step explanation:

Exercise 3

$-3x + 5y = 2$

$\implies 5y = 3x + 2$

$\implies y=\dfrac35x+\dfrac25$

Exercise 4

a) If L2 is parallel to L1, it has the same slope (gradient) ⇒ $m = -2$

If L2 passes through point (3, 1):

$y-y_1=m(x-x_1)$

$\implies y-1=-2(x-3)$

$\implies y=-2x+7$

So L2 = L1

b) If L3 is perpendicular to L1, then the slope of L3 is the negative reciprocals of the slope of L1 ⇒ $m = \dfrac12$

If L3 passes through point (-5, 2):

$y-y_1=m(x-x_1)$

$\implies y-2=\dfrac12(x+5)$

$\implies y=\dfrac12x+\dfrac92$

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2 years ago

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Zane buys a standard class train ticket.

GaryK [48]

Step-by-step explanation:

15 / 100 × 34

5.1 price he save

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2 years ago

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Svetllana [295]

Answer:

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Step-by-step explanation:

Punch it in the calculator and round the decimal from 42.1911 to 42.191

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3 years ago

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Rudiy27

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Step-by-step explanation:

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