Which statement is always true?

Mathematics

1 answer:

Ugo [173]2 years ago

8 0

The product of two rational numbers is rational is the correct answer

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It is roughly 8100 miles to fly from California to Australia. If it takes the plane 15 hours to reach its destination, how fast

Bad White [126]

Answer:

Answer is 540 mph (miles per hour)

Step-by-step explanation:

by diving 8100 by 15, you get a quotient of 540

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3 years ago

Roberta is planting flowers in her garden. She plants 9 rows of flowers. There are 7 flowers in each row. How many flowers does

scZoUnD [109]

Answer:

63 flowers

Step-by-step explanation:

all you have to do is multiply 7 and 9

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2 years ago

What is the product of 4+3i and 4-3i

mash [69]

Use the formula $(a+b)(a-b)=a^2-b^2$ .

$(4+3i)(4-3i)=4^2-(3i)^2=16-9i^2 \\ \\
i^2=-1 \\ \\
16-9i^2=16-9 \times (-1)=16+9=25 \\ \\
\boxed{(4+3i)(4-3i)=25}$

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2 years ago

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What is the coefficient in the following expression?

Y_Kistochka [10]

The coefficient is 4 because it is placed before x.

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2 years ago

What is this answer <br> (9+31+5)[(7•5)•4]

Reptile [31]

I got 63,000 because it simplifies to 45*35*4

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2 years ago