3 years ago

For Anya's birthday her father gave out colorful birthday hats that were

Mathematics

1 answer:

mafiozo [28]3 years ago

4 0

Answer: 21 cm is the volume

Step-by-step explanation: multiply 7cm x3 cm

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Subtracting with zeroes

nexus9112 [7]

The number would stay the same because, for example, 6 - 0 can't be 0 so it would be 6.

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3 years ago

Find two different 2 by 2 matrices a and b such that ab=ba

stiv31 [10]

Let $\mathbf A=\mathbf I$ be the identity matrix. Then pick whatever matrix you like for $\mathbf B$ .

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3 years ago

One-fourth of a number is 3 more than one-seventh of the same number.<br> What is the number?

uysha [10]

I set it up as an equation. 1/4x = 1/7x + 3. After you solve it out, it’s 28.

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3 years ago

Read 2 more answers

Express the radical using the imaginary unit i

valentinak56 [21]

Answer:

$=\pm i\sqrt{66}$

Step-by-step explanation:

So we have:

$\pm\sqrt{-66}$

This is the same as:

$=\pm\sqrt{66\cdot-1}$

Separate:

$=\pm\sqrt{66}\cdot\sqrt{-1}$

Replace the second term with i:

$=\pm i\sqrt{66}$

The square root of 66 cannot be simplified.

So, this is our answer :)

7 0

3 years ago

Thank you for helping :D

padilas [110]

1. I chose Volleyball, which has only 2 kids. Football has 9 kids. So to find how many more kids prefer Football over Volleyball we subtract the two.

9-2= 7

2. The least popular sport is Volleyball, which again is 2.
And soccer has 7 kids who prefer Soccer over any other sport.

So it’s the same process, 7-2= 5

7 0

3 years ago