Ask question

Ask question

All categories

3 years ago

6

A boy carries a 2 kg bag and walks 8m on a level road to his house. How much work has he done by carrying the bag? a. 4 J b. 16

J c. zero

1 answer:

rjkz [21]3 years ago

3 0

Answer:

160J

Step-by-step explanation:

I think this is the answer

You might be interested in

Marie wrote this expression to describe the number of cherries she would give each friend.

Maksim231197 [3]

The correct answer is A Marie does not know how many cherries she has to share. She knows she is sharing her cherries equally with 3 friends

6 0

3 years ago

A distribution of values is normal with a mean of 188 and a standard deviation of 20.8. Find the probability that a randomly sel

padilas [110]

Answer:0.8413

Step-by-step explanation:

Mean= 188, Std Dev. =20.8, Z=(x-mean)/Std Dev

P(X less than 167.2)= P(Z less than (167.2-188)/20.8)

=P(Z less than (-20.8/20.8))

=P(z less than -1)= P(Z less 1)

The value of 1 in the normal distribution table is 0.3413

So we add 0.5 to 0.3413 =0.8413

6 0

3 years ago

The middle school band has 56 members.The high school band has 96 members. The bands are going to march one after the other in a

riadik2000 [5.3K]

19 columns with 8 members in each column.

6 0

3 years ago

Using the formula for initial velocity h=-16t2+VT the height of any object can be found by the time, Annalee serves a volleyball

Marrrta [24]

The ball will hit the ground at 0.125 seconds

<h3>Quadratic function</h3>

The equation of the function is a quadratic function, and the function is given as:

$h = -16t^2 + 2t$

When the ball hits the ground, the value of h is 0.

So, the equation of the function becomes

$-16t^2 + 2t = 0$

Subtract 2t from both sides of the equation

$-16t^2 =- 2t$

Divide both sides by -2t

$8t =1$

Divide both sides by 8

$t =0.125$

Hence, the ball will hit the ground at 0.125 seconds

Read more about quadratic functions at:

brainly.com/question/11631534

5 0

2 years ago

What number is 40% of 20?<br>

fredd [130]

40% of 20 would be 8.

7 0

3 years ago

Read 2 more answers