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SVETLANKA909090 [29]
2 years ago
6

Which number does the 6 have a value that is one-tenth the value of 6 in 34,761?

Mathematics
1 answer:
Sholpan [36]2 years ago
8 0
It's in the housands.
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Can someone explain me problem #5 please? Thanks
drek231 [11]

The question describes the motion of a ball and asks about the motion of a rocket. There is no explanation for that. It goes directly into my "dumb question" file.

<h3>Given</h3>

The equation of ballistic motion is

... h(t) = -1/2·g·t² + v₀·t + h₀

where v₀ and h₀ are the initial upward velocity and height, respectively.

A rocket's motion is modeled by

... h(t) = -4.9t² + 18t + 14 . . . . . where h is in meters and t is in seconds

<h3>Find</h3>

<u>Part A</u>: v₀

<u>Part B</u>: h₀

<u>Part C</u>: (1) changes if h were measured in feet instead of meters. (2) the gravity coefficient in ft/s².

<h3>Solution</h3>

<u>Parts A and B</u>: You have correctly identified the coefficients in the equation that tell you the initial velocity (18 m/s) and height (14 m).

<u>Part C</u>: The relationship between feet and meters is

... 0.3048 m = 1 ft

Changing the units from m/s and m/s² to ft/s and ft/s² means we need to multiply the equation's coefficients by the appropriate conversion factor. Starting with the first coefficient ...

... (-1/2)g = -4.9 m/s²

... g = 9.8 m/s² = (9.8/0.3048) ft/s² ≈ 32.15 ft/s²

The new initial velocity is

... 18 m/s = 18/0.3048 ft/s ≈ 59.01 ft/s

The new initial height is

... 14 m = 14/0.3048 ft ≈ 45.93 ft

If we round all coefficients to 2 significant digits, the motion equation for units of feet and seconds is

... h(t) = -16t² + 59t + 46

(1) All of the coefficients in the function change to appropriate units. The new equation is ...

... h(t) = -16t² + 59t + 46

(2) The gravity coefficient is approximately 32 ft/s², so shows up in the equation as a coefficient of -16.

5 0
2 years ago
Just do 11 or 12 or both please im really tired and it 1:34 in the morning plz help
kumpel [21]

Answer:

11)<em>(-1)</em>

<em>12)1.7</em>

Step-by-step explanation:

11)y+z/x                

 (-3)+(-2)/5

 (-5)/5

<em>    (-1)</em>

12)x-5z/y

   5+5(-2)/(-3)

   5+(-10)/(-3)

   (-5)/(-3)

   1.666

 <em>    1.7</em>

<em></em>

<em>Hope this helps you</em>

<em>If you have any question just ask me</em>

3 0
2 years ago
11+8q=3q-19 I need help please idk the answer
iren2701 [21]

Answer:

-6

Step-by-step explanation:

1) combine all like terms

(bring 3q to the left and 11 to the right so you can combine the like terms)

(doing that will make 3q negative and 11 negative since your moving them so their sign changes as well)

8q-3q=-19-11

5q=-30

Q=-6

Hope this helps

4 0
3 years ago
Nikki, Pablo, and Mia are running a race. How many different ways might they finish the race?
AleksAgata [21]
They can finish in 18 different ways
4 0
2 years ago
Read 2 more answers
Mrs. Cahan asked her class to write fractions on their whiteboards that were equivalent to 2/4. Which fraction is equivalent to
KatRina [158]

Answer:

1/2

Step-by-step explanation:

because 2/4 can be reduced to 1/2

3 0
3 years ago
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