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fenix001 [56]
3 years ago
10

I am just going to ask this question again because I keep getting a scam answer

Mathematics
2 answers:
lapo4ka [179]3 years ago
7 0

Answer:

14.52 seconds

Step-by-step explanation:

GenaCL600 [577]3 years ago
4 0
Whats the answer ?

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the time that the rocket will hit the ground, to the nearest 100th of second.
y=-16x^2+148x+128
Hope this elf full to you ( thanks) !
You might be interested in
A right triangle has a perimeter of 24 cm and a hypotenuse of 10 cm. Find the length of the other two sides.
jekas [21]

Answer:

One of the sides is 6 cm and the other is 8 cm

Step-by-step explanation:

Let's call the unknown sides a and b. From the perimeter information (24 cm) we have:

a + b + hypotenuse = 24

a + b + 10 = 24

a + b = 14

b = 14 - a

So now we can right the Pythagorean theorem as follows:

a^2 + b^2 = hypotenuse^2\\a^2 + (14-a)^2=10^2\\a^2+ 14^2-28\,a+a^2=100\\2\,a^2-28\,a +96=0\\2\,(a^2-14\,a+48)=0\\2\,(a^2-6\,a-8\,a+48)=0\\2(a\,(a-6)-8\,(a-6))=0\\2\,(a-6)\,(a-8)=0

and from this expression in factor form to be zero a must be 6 or a must be 8.

Therefore the solutions are a = 6 (and therefore b = 14 - 6 = 8)

or a = 8 (and therefore b = 14 - 8 = 6)

7 0
3 years ago
Read 2 more answers
Does anyone know how to do this? And can you also help me with this problem, thank you :)
GenaCL600 [577]
<span>Multiply equation(2) with 4 so that coefficient of become same in both the equations(You can make coefficient of y same and can follow the following procedure.) 
</span><span>* Subtract (3) from (1) 
* </span>Divide both sides by -19
*Subtract 21 from both sides.
*Divide both sides by 4
so the solution is     x= 3 and  y= -7
Hope I helped you :)
6 0
3 years ago
HELP I ONLY HAVE 5 MINUTES LEFT
Darina [25.2K]

Answer:

i=13

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Help me guys, Due now please
Otrada [13]

Answer:

about 8.3 miles an hour.

Step-by-step explanation:

34/4 is 8.5

90/11 is 8.2

average: 8.3

6 0
3 years ago
Can you help me Figure out what x is asap
prohojiy [21]

Answer:

x= -11/10

Step-by-step explanation:

-6.75 + 21/4 - 3.25 - -11/10= -3.65

8 0
2 years ago
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