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Assoli18 [71]
3 years ago
5

Pls help me guys! And Pls explains how you got the answer! Thanks :D

Mathematics
1 answer:
ollegr [7]3 years ago
6 0

Answer:

Its 8

Step-by-step explanation:

I know this because 8 is the only number they give you the other numbers they dont suply. Ps dont use my spelling and you might want to come up with a better answer. good luck

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IM USING 20 POINTS FOR THIS PLS HELP AND SHOW WORK
emmasim [6.3K]

Answer:

the object is in the air on the time interval (0.24 sec, 6.51 sec)

Step-by-step explanation:

The object is 'in the air' for all t such that h> 0.  We need to find the roots of h = -16t^2 + 108t - 25 = 0.  From the graph we see that both t values are positive.  Once we find them, we subtract the smaller t from the larger t, which results in the length of time the object is in the air.

Use the quadratic formula to find the roots of h(t).  The coefficients of t are {-16, 108, -25}, and so the discriminant b^2 - 4ac is

108² - 4(-16)(-25) = 11664 - 1600 = 10064, whose square root is 100.32.

Then the quadratic formula x = (-b ± √[b² - 4ac)/(2a) becomes

      -108 ± 100.32       108 ± 100.32

t = ---------------------- = --------------------- = 3.375 ± 3.135

             2(-16)                      32

or t = 6.51 or t = 0.24  (both times expressed in seconds).

So, again, the object is in the air on the time interval (0.24 sec, 6.51 sec)

6 0
3 years ago
Please help me with this<br> question​
postnew [5]

Answer:

the picture is not clear of that number in diagram

3 0
2 years ago
What times 4/9 = -8?
djverab [1.8K]

Answ

This is false

Step-by-step explanation:

3 0
3 years ago
How is this number read? 14.102
qwelly [4]

Answer:

fourteen and one-hundred-two

Step-by-step explanation:

we tend to read "." as "point" but the proper reading would be to read the number left to the decimal point (14), add the word "and" and then read the number to the right of the decimal point (102)

5 0
2 years ago
Pls somebody solve this I still don’t understand it yet :/ please
Fofino [41]

Answer:

first blank 39, second 9/39 i think, and third 351

Step-by-step explanation:

i haven't done something like this in a long time so i dont know if its completely correct or correct at all

8 0
2 years ago
Read 2 more answers
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