B. 548, 000
75,364 rounds down to 75,000 because of the 3. 472,756 rounds up to 473,000 because of the 7.
75,000 + 473,000 = 548000
Answer:
1st row: 12 7 5
2nd row: 4 9 11
3rd row: 8 8 8
12 7 5
4 9 11
8 8 8
Step-by-step explanation:
12+7+5=24
4+9+11=24
8+8+8=24
12+4+8=24
7+9+8=24
5+11+8=24
Hope it helps!
PERFECT application of the general equation of things
that are moving up and down in gravity:
H(t) = H₀ + v₀t + 1/2 g t²
t = time after the toss
H(t) = height at any time after the toss
H₀ = height from which it's tossed
v₀ = initial speed
g = acceleration of gravity
I'm going to call 'UP' = the positive direction .
So ...
H₀ = +40 ft
v₀ = +54 ft/sec
g = -32 ft/sec²
When the object hits the ground, H(t) = 0 .
So you have ...
0 = 40 + 54 t - 16 t²
Let me re-write that for you, to make it a
little easier and more familiar:
- 16 t² + 54 t + 40 = 0
Divide each side by -2 : 8 t² - 27 t - 20 = 0
Now go to your toolbox, pull out your quadratic formula,
solve that quadratic equation, and you'll get the usual two
solutions.
The positive one is the one you want.
The negative one refers to time before the toss, and may be discarded.
Volume of triangular prism = area of triangle × length
volume of 'L'-shaped prism = area of 'L'-shape × length
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