Please help! I don't understand this question! 19 pts1.) A projectile launched straight up into the air with an initial velocity of 20 meters per second from a height of 10 meters. How long will it take for the projectile to hit the ground?
a.) Which formula should be used?
h(t) = -4.9t² + vot + ho
h(t) = -16t² + vot + ho
b.) What is the vo?
c.) What is the ho?
d.) Use the Quadratic Formula to solve
Answers
gravity on earth :g=9.81 m/s²
9.81/2≈4.9
Answer 1
2)
h(t)=-4.9*t²+20*t+10
To hit the ground ht(t)=0
==> -4.9*t²+20*t+10=0
Δ=20²+4*4*10=560=23,6643...²
t=(-20-4√35)/(-4.9*2)=4,4555...(s)
t=(-20+4√35)/(-2*4.9)=-0,37391... to exclude (time must be >0)
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Answers
Answer:
5/32 in fraction form
0.1563 in decimal form.
Step-by-step explanation:
step 1 Address formula, input parameters & values.
Input parameters & values:
5/8 & 4
5/8 ÷ 4= ?
step 2 Multiply 5/8 with reciprocal of 4
=5/8 x1/ 4 =5/32
Thus, 5/32 is equivalent fraction for 5/8 divided by 4
Answer:
0.15625
Step-by-step explanation:
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x/6=tan 60°==>x/6=√3==>x=6√3
Answer B
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Answers
If you want to draw a table, you need to give values to the X and resolve the equation to find Y.
For example with y=-3x+5
X=0
Y= -3 x 0 + 5
Y= 5
X=1
Y = -3x1 + 5
Y=2
X=2
Y= -3 x 2 + 5
Y= -1
Whe you have some numbers, draw an X Y axis and you can graphic it.
Answers
Answer:
9.9
Step-by-step explanation:
you add the two whole numbers together and get 9
then you need to add whatever is behind the decimal point which is 9
add them together and you get 9.9