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3 years ago

I need help with this question?????

Mathematics

2 answers:

ankoles [38]3 years ago

7 0

She harvests roughly 11 and a half acres an hour

Rufina [12.5K]3 years ago

3 0

This would be 8 3/4 / 5/6

= 35/4 / 5/6

= 35/4 * 6/5

= 210 / 20 = 21/2 = 10 1/2 acres per hour (answer).

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Convert these unlike fractions to equivalent like fractions and add them. You must use the LCD to get the answer correct. If pos

elena-14-01-66 [18.8K]

Answer: Find the lowest common denominator of the 2 denominators

Step-by-step explanation:

The common in both denominator is 15.

3: 3,6,9,12,15,18,21,24,27,30

5: 5,10,15,20,25.30,35,40,43,50

Since 5x3 is 15, 1/5 x 3/3= 3/15

Since 3x5 is 15, 2/3 x 5/5= 10/15

3/15 is equivalent to 1/5 and 10/15 is equivalent to 2/3.

3/15 + 10/15 is equal to 13/15

13/15 can't be simplified because they are both odd numbers and they have less than 2 factors.

Hope this helped! Have a nice day! :D

3 0

2 years ago

Please help me with thsi

Bogdan [553]

Answer:

Option 2

Step-by-step explanation:

I say option to because it is 990

8 0

3 years ago

F(x) = -x² + 4x - 1 find the value of f(x) if x = 0

ollegr [7]

Answer:

-1

Step-by-step explanation:

Given,

f(x) = -x² + 4x - 1 and x = 0

Putting the value of x we get,

f(0)= $-0^{2}$ + (4 X 0) - 1

= -0+0-1

=-1

∴f(x)= -1

So, the required value is -1

8 0

2 years ago

A water balloon slingshot launches its projectiles essentially from ground level at a speed of 25.5 m/s . (You can ignore air re

lozanna [386]

A) The longest horizontal distance is reached at 45 degrees angle. This is true for any projectile launch.

B) First, calculate fligth time (using the vertical motion) and then calculate the horizontal movement.

Flight time = 2* ascendent time

ascendent time => final vertical velocity, Vy, = 0

sin(45) = Voy / Vo => Voy = Vosin(45) = 25.5 m/s * (√2) / 2 = 18.03 m/s

Vy = Voy - gt = 0 => Voy = gt = t = Voy / g

Use g = 10 m/s^ (it is an aproximation, because the actual value is about 9.81 m/s^2 depending on the latitud)

t = 18.03 m/s / 10 m/s^2 = 1.83 s

This is the ascendant time going upward.

The flight time is 2*1.83 = 3.66 s

Horizontal motion

Horizontal velocity = Vx = constant = Vox = Vo*cos(45) = 18.03 m/s

Vx = x / t => x = Vx*t

Horizontal distance = xmax = 18.03m/s*3.66 s = 65.99 m

c) The time the ballon will be in the air was calculated in the part B, it is 18.03 s

5 0

3 years ago

Number one please help

erastova [34]

The answer is 6.875 ish. not exact

8 0

3 years ago