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Kay [80]
2 years ago
6

A rectangular array of cabbage plants in a field had 6,489 plants arranged in 9 rows

Mathematics
1 answer:
adell [148]2 years ago
8 0

Answer:

There are 721 columns.

Step-by-step explanation:

6,489 ÷ 9 = 721

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A computer store decides to increase the prices of all the items it sells by 15%. the store manager uses matrices to prepare the
Andrews [41]

The matrix exists as a set of numbers placed in rows and columns to create a rectangular array. The manager could achieve scalar multiplication on Matrix A, utilizing the scalar 1.15.

<h3>What is the matrix?</h3>

The matrix exists as a set of numbers placed in rows and columns to create a rectangular array. The numbers exist named the elements, or entries, of the matrix. Matrices contain wide applications in engineering, physics, economics, and statistics as well as in different branches of mathematics.

Increasing the price by 15% would mean we exist taking 100% of the value + another 15%

100 + 15 = 115%

115% = 115/100 = 1.15.

Multiplying every value in Matrix A by 1.15 will give the price raised by 15%.

Therefore, the correct answer is option c. by multiplying each entry of matrix a by 1.15.

To learn more about matrix refer to:

brainly.com/question/12567347

#SPJ4

7 0
2 years ago
"he residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 4 to 5. If there were 3
charle [14.2K]

Answer:  5742

================================================

Work Shown:

x = number of yes votes

(number who said yes)/(number who said no) = 4/5

x/3190 = 4/5

5x = 3190*4 .... cross multiply

5x = 12760

x = 12760/5 ... divide both sides by 5

x = 2552

There were 2552 people who voted yes

The total number of votes is 2552+3190 = 5742

5 0
3 years ago
(-1/4)^8 * (8/11)^6 * (1/2)^-8
marissa [1.9K]

Answer:

1024/1771561

Step-by-step explanation:

Using exponent rules, we can multiply all of them together after applying the exponent to get the final answer.

8 0
4 years ago
Hei has $1,300 in a retirement account earning 4% interest compounded annually. Each year after the first, she makes additional
SVEN [57.7K]

Answer:

Her account balance after 5 years is $8702.87

Step-by-step explanation:

1500 (1.05) = 1575 --> after one year

1575 + 1500 = 3075    

3075 (1.05) = 3228.75 --> after two years

3228.75 + 1500 = 4728.75

4728.75 (1.05) = 4965.1875 --> after three years

4965.1875 + 1500 = 6465.1875

6465.1875 (1.05) = 6788.44688 --> after four years

6788.44688 + 1500 = 8288.44688

8288.44688 (1.05) = 8702.86922 --> after five years = $8702.87

7 0
3 years ago
Use the number line to answer the question
nekit [7.7K]

Answer:

2.8

Step-by-step explanation:

I hope this helps!

4 0
3 years ago
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