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3 years ago

Find the surface area of the regular pyramid. _____sq. cm.

Mathematics

1 answer:

snow_tiger [21]3 years ago

7 0

Ashes2049, are you good at geometry?

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How do I simplify ((3x^2+12x+12)/(2x^2+x-6))/((4x^2-9)/(3x^3+x^2-10))

Shalnov [3]

$\dfrac{ \frac{3x^2+12x+12}{2x^2+x-6} }{ \frac{4x^2-9 }{3x^3+x^2-10} } =$

$= \dfrac{3(x + 2)^2}{(2x - 3)(x + 2)} \times \dfrac {3x^3+x^2-10} {(2x + 3)(2x - 3)} }$

$= \dfrac{3(x + 2)}{2x - 3} \times \dfrac {3x^3+x^2-10} {(2x + 3)(2x - 3)} }$

$= \dfrac{3(x + 2)(3x^3+x^2-10) }{(2x - 3)^2(2x + 3)}$

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3 years ago

A kite with a string 50 meters long makes an angle of elevation of 58o with the ground, assuming the string is straight, how hig

Sunny_sXe [5.5K]

An angle of elevation of 58 degrees with the ground means that the angle started at the x-axis and terminates on the first quadrant region through a counter clockwise direction. Imagining a triangle, the string of the kite becomes the hypotenuse, the angle 58 degrees is the angle between the hypotenuse and the ground, and the height of the kite is the side opposite to the angle.

Therefore, we can calculate for the height of the kite using the sin function:

sin θ = opposite side / hypotenuse

sin 58 = opposite side / 50 m

opposite side = 50 m * sin 58

opposite side = 42.4 m

<span>Therefore the kite is about 42.4 m above the ground.</span>

8 0

3 years ago

Fifteen minutes past eight in the evening on a 24 hour clock

anastassius [24]

Answer: The time is 20:15 on a military time clock.

Step-by-step explanation:

4 0

2 years ago

What is (-3, 4) translated by (x,y) → (x – 6, y – 5).

AlekseyPX

Answer:

(-9,-1)

Step-by-step explanation:

You plug in the x and y values and solve the algebraic expression.

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3 years ago

Colleen recorded the type of trees in the woods near her house. She counted 20 spruce trees and 50 maple trees. What is the expe

tankabanditka [31]

Answer:

The answer is A $\frac{2}{7}$

Step-by-step explanation:

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3 years ago