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3 years ago

How to divide 0.13 by 0.25

Mathematics

1 answer:

viktelen [127]3 years ago

7 0

Divide 0.13 by 0.25 and your answer should be 0.52.

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Find the product (7m^2-3m-7)(m^2-7m-6)

earnstyle [38]

Answer:

7m^4-52m^3-28m^2+67m+42

Step-by-step explanation:

(7m^2-3m-7)(m^2-7m-6)

7m^4-3m^3-7m^2-49m^3+21m^2+49m-42m^2+18m+42

7m^4-3m^3-49m^3-7m^2+21m^2-42m^2+49m+18m+42

7m^4-52m^3-28m^2+67m+42

4 0

3 years ago

Verify the identity<br><br> cos quantity x plus pi divided by two = -sin x

In-s [12.5K]

Answer:

Identity is verified.

Step-by-step explanation:

We have to verify the identity $cos(x+\frac{\pi }{2}) = (- sinx)$

To prove any identity we always prove one side(either left hand side or right hand side) of the equation equal to the other side.

In this identity we take the left hand side first

$cos(x+\frac{\pi}{2})$

$=cosx\times cos(\pi/2)-sinx\times sin(\pi/2))$ (as we know cos(a+b) = cosa×cosb-sina×sinb)

$= cosx\times0-sinx\times1$

$= 0-sinx$

= - sinx ( Right hand side)

Hence identity is proved.

6 0

3 years ago

There are 14 books on a shelf. 6 of these books are new.

Alexxandr [17]

a) 8:14

b) 6:8

yeah its telling me I'm short of words

3 0

3 years ago

Read 2 more answers

Bob paid 17.50 for a box of cards and .35 each for 18 stamps. What was the total cost in dollars and cents of the box of cards a

alexgriva [62]

$23.80 for a box of cards and 18 stamps

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3 years ago

Li Na is going to plant 6363 63 tomato plants and 8181 81 rhubarb plants. Li Na would like to plant the plants in rows where eac

Whitepunk [10]

Answer: The greatest number of rows Li Na can plant is 9.

Step-by-step explanation:

Given: Li Na is going to plant 63 tomato plants and 81 rhubarb plants.

Li Na would like to plant the plants in rows where each row has the same number of tomato plants and each row has the same number of rhubarb plants.

To find the greatest number of rows Li Na can plant, we need to find the GCF of 63 and 81.

Since , $63=7\times9\ and\ 81=8\times9$

Clearly, GCF(63,81)=9

Therefore, the greatest number of rows Li Na can plant is 9.

6 0

2 years ago