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mamaluj [8]
3 years ago
7

Find the mean of the data in the dot plot below.

Mathematics
2 answers:
makkiz [27]3 years ago
6 0
2.5.........................
NemiM [27]3 years ago
3 0

Answer:

2.5 is the mean

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200 crayons i think
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Solve System Below<br><br> 5x + 8y = 3<br> 5x + 9y = 3
Aleks04 [339]

Answer:

Step-by-step explanation:

-5x - 8y = -3

5x + 9y = 3

y = 0

5x + 0 = 3

5x = 3

x = 3/5

(3/5, 0)

5 0
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The area of the surface of an office desk is 12 square feet. The desk is 2 feet wide. How long is it?
Over [174]

Answer:

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Step-by-step explanation:

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3 years ago
An elementary ntimesn scaling matrix with k on the diagonal is the same as the ntimesn identity matrix with _______ exactly one
Dafna11 [192]

Answer:

exactly one, 0's, triangular matrix, product and 1.

Step-by-step explanation:

So, let us first fill in the gap in the question below. Note that the capitalized words are the words to be filled in the gap and the ones in brackets too.

"An elementary ntimesn scaling matrix with k on the diagonal is the same as the ntimesn identity matrix with EXACTLY ONE of the (0's) replaced with some number k. This means it is TRIANGULAR MATRIX, and so its determinant is the PRODUCT of its diagonal entries.​ Thus, the determinant of an elementary scaling matrix with k on the diagonal is (1).

Here, one of the zeros in the identity matrix will surely be replaced by one. That is to say, the determinants = 1 × 1 × 1 => 1. Thus, it is a a triangular matrix.

3 0
3 years ago
There are 750 toothpicks in a regular sized box. If a jumbo box is made by doubling all the dimensions of the regular sized box,
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To answer this, let the 3 sides of the regular sized rectangular box be x, y, and z.

When we double all the sides, the new sides have lengths 2x, 2y, and 2z, respectively.

Since the regular box (with dimensions x,y, and z) have 750 toothpicks, we can write

xyz=750

Similarly we can write for the jumbo box as,

(2x)(2y)(2z)

which is equal to 8(xyz)

So this is 8 times the original of xyz. Hence the jumbo box will have 8 times 750 number of toothpicks.

ANSWER: 8*750=6000 toothpicks

7 0
3 years ago
Read 2 more answers
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