Answer:
plus or minus √10 / 4
Step-by-step explanation:
0=-16t^2 +10 becomes easier to solve if we rewrite it as 16t^2 = 10.
Then t^2 = 10/16 = 5/8, and t = plus or minus √(5/8), or
t = plus or minus (√5) / √8), or
t = plus or minus (√5)√8 √5*2√2
------------- = -------------------
8 8
or plus or minus √10 / 4
Hope this helps!!
1) 25.1 rounds to 30. 30/8=5
2) 59.67 rounds to 60 and 11.1 rounds to 10, so 60/10= <u>6</u>
3) 82.77 rounds to 80 and 7.5 rounds to 10, so 80/10= <u>8</u>
4) 496.3 rounds to 500 and 98 rounds to 100, so 500/100= <u>5</u>
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5) 1.76 rounds to 2 and 0.91 rounds to 1, so 2/1= <u>2</u>
<u></u>
6) 13.07 rounds to 13 and 7.41 rounds to 7, so 13/7= <u>1.85714285714</u>
7) 41.3 rounds to 40 and 6.73 rounds to 7, so 40/7= <u>5.714</u>
<u></u>
8) 81.4 rounds to 80 and 10.03 rounds to 10, so 80/10= <u>8</u>
__
9) 384.4 rounds to 380 and 88.1 rounds to 88, so 380/88= <u>4.318</u>
Answer:
irrational
Step-by-step explanation:
A = s^2
s^2 = 24,200
P = 4s
The perimeter is irrational.
The driver has to drive 20 miles to come back to the starting point directly
Step-by-step explanation:
The driver has driven in the form of two legs on a right-angled triangle where the vertical side (perpendicular) is 12 miles and the horizontal side (base) is 16 miles.
Now as the driver has to return back to the starting point directly, it will form a right-angled triangle making the direct path a hypotenuse
So,
B = 16
P = 12
H = ?
we have to find the hypotenuse
As the triangle is a right angled triangle, we can use the Pythagoras theorem to find the length of hypotenuse So,
taking Square root on both sides
So
The driver has to drive 20 miles to come back to the starting point directly
Keywords: Pythagoras theorem, Right angled triangle
Learn more about Pythagoras theorem at:
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