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scoray [572]
4 years ago
15

You have a motion security light by your door. A cat run across it and the light turns on. What is the input of this system and

what is the output?
Mathematics
1 answer:
hammer [34]4 years ago
7 0
The input : the light sees the cat running (running) by, the output : the light turns on

Are there any numbers ?
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What is the change in elevation between 8,500m and 3,400m?
Alenkasestr [34]

Answer:

Step-by-step explanation:

8500- 3400=5100

7 0
4 years ago
A golfer exerts a force of 15.0 N on a golf ball that has a mass of 0.42 kg. What is the golf
Gala2k [10]

Answer:

35.71m/s²

Step-by-step explanation:

using the formula force(F)=mass(m)×acceleration(a)

a =

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5 0
4 years ago
Read 2 more answers
What number is 37 1/2% of 32?
Serggg [28]
37.5% of 32 is 12

if you move the decimal point in the percentage 2 places to the left you will get a number you can multiply with 

so 0.375 x 32 = 12


6 0
3 years ago
Find the value of sin(a/2) if cosa= 12/13<br>​
daser333 [38]

Answer: sin\frac{a}{2} = ± \frac{1}{\sqrt{26} }

Step-by-step explanation:

We very well know that,

cos2A=1−2sin²A

⟹ sinA = ±\sqrt{(1-} \frac{cos2A}{2} )

As required,  set A = \frac{a}{2}   &   cos a=  \frac{12}{13}    ,thus we get

sin \frac{a}{2} =± \sqrt{\frac{1-cos a}{2} }  

∴ sin\frac{a}{2} =±\sqrt{\frac{1-\frac{12}{13} }{2} } = ± \frac{1}{\sqrt{26} }

   since ,360° < \frac{a}{2} <450°

             ,180° < \frac{a}{2} <225°

Now, we are to select the value with the correct sign. It's is obvious from the above constraints that the angle a/2 lies in the III-quadrant where 'sine' has negative value, thus the required value is negative.

hope it helped!

   

5 0
3 years ago
A rectangular made of square tiles measures 8 tiles wide and 10 tiles long what is the length in tiles of a similar rectangle 12
Agata [3.3K]
There’s are ratio which would be 8/10. 12/x should equally 8/10. So it would be 14 tiles long.
3 0
4 years ago
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