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Feliz [49]
3 years ago
15

CAN SOMEONE PLEASE HELP ME????

Mathematics
2 answers:
Vitek1552 [10]3 years ago
3 0

Answer:

Match it with x and y method

Step-by-step explanation:

vladimir2022 [97]3 years ago
3 0

Answer:

you do the x first you go to the right and then you go up. so like if you had (2,7) you will go over to the right 2 and then go up 7.

Step-by-step explanation: I did this before and i have a good teacher.

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Can someone please solve these?
JulijaS [17]

Answer:

Step-by-step explanation:

h = -6t^{2} +20t + 4

I will use calculus,  maybe that's not how you're supposed to do this

-12t +20 =0

12t = 20

t = 20 /12

t = 1 \frac{8}{12}

t = 1 \frac{2}{3}

there will be a max at  1.6666666666  seconds

-6*1.6666666666666^{2}  + 20 * 1.6666666666  +4

= 16.666666666666 + 33.333333333333 + 4

= - 16\frac{2}{3} + 33 \frac{1}{3} + 4

= 20\frac{2}{3}  feet max height ( not too high,  for a rocket)

time of flight:

0 = -6t^{2} +20t + 4

use quadratic formula to find t

-20 +- sqrt [ 20^{2} - 4*(-6)*4 ] / 2*(-6)

-20 +- sqrt [400 + 96 ] / -12

-20 +- sqrt [496 ] / -12

-20 +- 22.27105 / -12

try the negative option 1st

-42.27105 / -12

3.522 seconds.     time of flight

when will the rocket be at 12' ? :

12 = -6t^{2} +20t + 4

0 = -6t^{2} +20t -8

use quadratic formula again to find t

-20 +- sqrt [ 20^{2} - 4*(-6)*(-8) ] / 2*(-6)

-20 +- sqrt [ 400 - 192 ] / -12

-20 +- sqrt [208 ] / -12

-20 - 14.4222 / -12

-34.4222 / -12

2.8685 seconds ( on the way down)

and

-20 + 14.4222 / -12

-5.578 / - 12

0.4648  seconds ( on the way up )

6 0
3 years ago
Lin runs 5 laps in 6 minutes how many laps per minute is that.
ikadub [295]

Answer:

about 1 and a half minutes

Step-by-step explanation:

6/5

laps over minutes

4 0
3 years ago
A bread recipe calls for 1/3 cup of butter. You want to make 1/2 of a batch. How much butter do you need?
Sergio [31]
Do 1/3 x 1/2 to get 1/6, or you could think, 1/3 divided by 2, which would equal 1/3 x 1/2
6 0
3 years ago
Read 2 more answers
Which of the following are geometric sequences?
Nana76 [90]
B. 10, 5, 2.5, 1.25, 0.625, 0.3125
5 0
3 years ago
What is an algebraic expression
Bond [772]
An algebraic expression is an expression that includes constants, variables, and the algebraic operations (add, subtract, multiply, divide.
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