It’s 27 because u multiple the first 2 number and it’s a negative then add the rest to it
We must look at this question in steps
The first half of the journey is travelled at 40 km/h
Half of 100km is 50 km
Using the formula
Distance = Speed x Time
Speed = Distance / Time
Time = Distance / Speed
We can work out the time:
50km / 40km/h = 1.25 hours
Next we look at the second half of the journey
50km at 80km/h
50km / 80km/h = 0.625 hours
Add together both times to work out how long the entire journey took
1.25 + 0.625 = 1.875 hours
Using the Speed formula from before
Speed = 100km / 1.875 =
53 1/3 km/h or 53.3 recurring km/h
Pythagorean Theorem
x^2 = 15.7^2 -7.8^2
x^2 =
<span>
<span>
<span>
185.65
</span>
</span>
</span>
x =
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<span>
<span>
13.6253440324
</span>
</span>
</span>
Answer is C
Answer:
A
Step-by-step explanation:
Hopefully this helps
Answer:
prime numbers are the natural numbers greater than one that are not products of two smaller natural numbers
Step-by-step explanation:
