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2 years ago

(-11, 12),(-4,-9) what is the slope

Mathematics

1 answer:

snow_tiger [21]2 years ago

5 0

Answer:

m = -21 / 7 = -3 / 1 = -3

Step-by-step explanation:

i think im not sure but i hope it helps and good luck!

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Evaluate 1- (-3) -5 I need an answer asap thxxx

JulijaS [17]

Answer:

MARK ME AS BRAINLIEST , THANK ME AND VOTE 5.0

Answer: -1

Step-by-step explanation:

1- -3 equals 1+3 = 4

4 - 5 equals -1

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3 years ago

At 3pm, the length of the shadow of a thin vertical pole standing on level ground is the same as the height of the pole. A while

aliya0001 [1]

Answer: The height of the pole is 175.97 ( approx )

Step-by-step explanation:

Let the height of the pole is x cm,

Also, let the angle of elevation of the sun to the pole at 3 pm is $\theta$

Thus, by the question,

$tan\theta = \frac{\text{ The height of the pole}}{\text{ The height of the shadow}}$

$\implies tan\theta = \frac{x}{x}$ ( at 3pm the height of shadow = height of the pole)

$\implies tan\theta = 1$

$\implies \theta = 45^{\circ}$

Again, according to the question,

When the angle of elevation is $(\theta - 12^{\circ})$ ,

The height of shadow = x + 95,

$\implies tan(45-12)^{\circ}=\frac{x}{x+95}$

$\implies tan 33^{\circ}=\frac{x}{x+95}$

$\implies tan 33^{\circ}x + 95\times tan33^{\circ}=x$

$\implies tan 33^{\circ}x - x = - 95\times tan33^{\circ}$

$\implies -0.3505924068 x = - 61.6937213538$

$x=175.969930202\approx 175.97\text{ cm}$

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3 years ago

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Step-by-step explanation:

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