3 years ago

Do not change the order of the numbers. You may put two numbers together to form a two-degit number.

Mathematics

1 answer:

LenKa [72]3 years ago

7 0

1 + 2 + 3 + 4 + 5 + 67 + 8 = 90

I think this is what you mean right?

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Which of the following triangles have three sides of different length? A. acute B. scalene C.equilateral D. right

katen-ka-za [31]

Answer:

scalene

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Step-by-step explanation:

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Answer:

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If the length of each side of a cuboid decreases by 20%, find the percentage decrease in its volume.

just olya [345]

Answer:

Step-by-step explanation:

(1+25 /100) (1-20/100) (1-50/100) <1

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3 years ago

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A ball is launched straight up in the air from a height of 6 feet. Its velocity (feet/second) t seconds after launch is given by

german

Step-by-step explanation:

A ball is launched straight up in the air from a height of 6 feet. The velocity as a function of time t is given by :

f(t) = -32 t+285

Height of the ball is :

$h(t)=\int\limits{f(t){\cdot} dt}\\\\h(t)=\int\limits{(-32t+285){\cdot} dt}\\\\h(t)=-16t^2+285t+C$

C is constant. Here the ball is launched from a height of 6 feet. So,

$h(t)=-16t^2+285t+6$

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At t = 9 s, $h(t)=-16(9)^2+285(9)+6=1275\ m$

Between 2 s and 9 s, the ball's height changed is : 1275 - 512 = 763 m.

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3 years ago