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seraphim [82]
2 years ago
9

How much work is done when a girl pushes a lunch cart 15m across the cafeteria with a force of 3N​

Mathematics
1 answer:
pashok25 [27]2 years ago
3 0

Answer:

45 J

Step-by-step explanation:

Just plugged into the work force formula got 45 jules

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Question 3, help please!
White raven [17]

The answer is not defined.

Explanation:

The given matrix is $\left[\begin{array}{cc}{2} & {4} \\ {1} & {-6}\end{array}\right]+\left[\begin{array}{c}{1} \\ {0}\end{array}\right]$

The matrix $\left[\begin{array}{cc}{2} & {4} \\ {1} & {-6}\end{array}\right]$ has dimensions 2\times 2

This means that the matrix has 2 rows and 2 columns.

Also, the matrix $\left[\begin{array}{l}{1} \\ {0}\end{array}\right]$ has dimensions 2\times1

This means that the matrix has 2 rows and 1 column.

Since, the matrices can be added only if they have the same dimensions.

In other words, to add the matrices, the two matrices must have the same number of rows and same number of columns.

Since, the dimensions of the two matrices are not equal, the addition of these two matrices is not possible.

Hence, the addition of these two matrices is not defined.

4 0
3 years ago
I do not get it because i never learned coefficient i
aleksley [76]
1/4 

The coefficient is the number attached to a variable. 
7 0
3 years ago
Matt builds a storm shelter in the shape of a rectangular prism. It is 6 feet tall, 8 feet long, and 2 feet wide. What is its su
Ainat [17]

Answer:

152 feet^2

Step-by-step explanation:

(8x2 + 8x6 + 2x6)x2

152

8 0
2 years ago
Pls help, I will give brainlist!
LenKa [72]

Answer:

Step-by-step explanation:

2.)A=\frac{bh}{2}

\frac{15*10}{2}=75.

3.) years to month

6 years is 72 month+2 month=74 month

month to days

74 month=2250.84days.

6 0
2 years ago
Lucy drove 300 miles in 10 hours. On average, how fast did she drive in hours per
Simora [160]

Answer: 30 miles per hour

Step-by-step explanation:

Speed = distance / time

= 300 / 10

= 30 miles per hour

7 0
3 years ago
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