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3 years ago

Elapsed time 9 3/4 hours end time 6:00 p.m. what is the start time

1 answer:

4 0

<span>It will be 8:15 am because if you start at 8:15 am and you add 9 hours 45 minutes you get 18 and the 18 hours of the day its 6:00 pm</span>

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5x - 2y = 3, -5x + 4y = 9 solutions

Vinvika [58]

5x-2y=3
-5x+4y=9

2y= 12
divide it by 2

y= 6

put y in any equation

5x-2 (6)=3

5x-12=3
5x= 3+12=15
divide by 5
x=3

y= 6

3 0

3 years ago

Read 2 more answers

Factorise x(6x - 5y) - 4(6x - 5y)^2

Fed [463]

Answer:

(6x-5y)(20y-23x)

Step-by-step explanation:

x(6x - 5y) - 4(6x - 5y)^2

= (6x-5y)(x-4(6x-5y))

= (6x-5y)(x-24x+20y)

= (6x-5y)(20y-23x)

5 0

3 years ago

What is the value of ln e^4

sineoko [7]

Answer:

$\large\boxed{\ln e^4=4}$

Step-by-step explanation:

$Use\\\\\log_ab^n=n\log_ab\\\\\log_aa=1\\\\\ln a=\log_e a\to\ln e=1\\====================================\\\\\ln e^4=4\ln e=4(1)=4$

3 0

3 years ago

The perimeter of the polygon above is

Rama09 [41]

Answer:

80 cm

Step-by-step explanation:

5 points in a star, each point has a perimeter of 16,

16 x 5 = 80

or just legit add all the 8's

DONT FORGET TO INCLUDE THE UNITS

4 0

3 years ago

Read 2 more answers

PLEASE I NEED HELP!!!!!!!!

Yanka [14]

Answer:

1) x= 3i, x= - 3i

2) x= +i $\sqrt{7}$ , x = - i

Step-by-step explanation:

1) x^2+9=0

(x+3i)(x-3i)=0

x= 3i, x=-3i

2) x^2-4=-11

x^2=-7

x= ±i $\sqrt{7}$

x= +i $\sqrt{7}$ , x = - i

hope this helps!! :))

7 0

3 years ago