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svp [43]
3 years ago
10

Qual será o tempo de queda se uma pedra cair de uma altura de 19,9 metros?

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
4 0
<span><span><span><span>g<span>t2</span></span>2</span>=2g</span><span><span><span>g<span>t2</span></span>2</span>=2g</span></span><span> or 19.9m.</span>
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What are these answers?
murzikaleks [220]
The first one is 25/9
And the second one is 25/36
8 0
3 years ago
Find factors of 40 that will SUBTRACT to 3 <br><br> Smaller factor:<br> Larger factor:
Cloud [144]
8 and 5 multiply to 40 but subtract to 3.
3 0
3 years ago
If line a is perpendicular to line b and the slope of line a is 7 whats the slope of line b
amm1812

Answer:

If a line is perpendicular to another line, that means that the slope is completely opposite that of the original line.  The first thing that we do to the slope is we negate the number which means that if we have a slope of -7 our slope because 7 in this step.  In our case our slope is 7 so in this step it becomes -7.

Moving onto the second part which is to get the reciprocal of the number which means that if we have \frac{1}{2} then we would switch it to 2.  In our case our number is -7 so we would make that into a fraction like this -\frac{1}{7}.

In conclusion, our final slope of the perpendicular line is -\frac{1}{7}.

<u><em>Hope this helps!  Let me know if you have any questions</em></u>

8 0
2 years ago
Read 2 more answers
-4.5x-2y=-12.5 3.25x-y=-0.75<br> solve by elimination
creativ13 [48]
-4.5x-2y=-12.5 and 3.25x-y=-0.75
we first multiply the second equation by -2
(-2)*(3.25x-y=-0.75)=-6.5x+2y=-1.5
add the equation to eliminate the y
so yo get (-4.5x-6.5x)=(-12.5-1.5)
-11x=-11
x=1
now we plug in x into any equation to solve for y
-45x-2y=-12.5 and x=1
(-45*1)-2y=-12.5
-4.5-2y=-12.5
-2y=-12.5+4.5
-2y=-8
y=4
then your answer is x=1 and y=4
5 0
3 years ago
SOMEONE PLEASE HELP ME ASAP PLEASEEE!!!​
JulsSmile [24]

Answer:

m-9

Step-by-step explanation:

12-9= 3

14-9= 5

18-9= 9

27-9= 18

4 0
3 years ago
Read 2 more answers
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