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3 years ago

Is 33/3 a natural, whole, integer, or rational number??????

Mathematics

1 answer:

Rasek [7]3 years ago

6 0

Natural, Whole, and a rational number

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A random sample of 30 seventh grade students shows that 12 of them own a dog. How many seventh grade students can you predict ow

ArbitrLikvidat [17]

Answer:

160

Step-by-step explanation:

If out of 30 7th graders, 12 own a dog then when you have 400 of them, 160 will have a dog as well.

The way I did this was by 400/30: which was 13.3 repeating. I then mutliplied this number by 12, to find the final answer of 160.

4 0

3 years ago

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Solve the equation. \dfrac{11}6 =n+\dfrac79 6 11 =n+ 9 7 start fraction, 11, divided by, 6, end fraction, equals, n, plus, s

kvasek [131]

11/6 = n + 7/9
11/6 - 7/9 = n = 19/18

5 0

3 years ago

Perform the indicated operations. Write the answer in standard form, a+bi. (5 + 6i)(5 - 6i)

lubasha [3.4K]

$\boxed{\underline{\bf \: ANSWER}}$

$\sf \: ( 5 + 6 i ) ( 5 - 6 i )$

Multiply complex numbers 5+6i and 5-6i in the same way as you multiply binomials.

$\dashrightarrow \sf 5\times 5+5\times \left(-6i\right)+6i\times 5+6\left(-6\right)i^{2}$

By definition, i² is -1.

$\dashrightarrow \sf 5\times 5+5\times \left(-6i\right)+6i\times 5+6\left(-6\right)\left(-1\right)$

Do the multiplications.

$\dashrightarrow \sf \: 25-30i+30i+36$

Now cancel -30i & +30i

$\dashrightarrow \sf \: 25 \: \bcancel{- 30i} \: + \: \bcancel{30i}+36$

Now the equation becomes

$\dashrightarrow \sf \: 25 \: + 36 \\ \dashrightarrow \boxed{\bf \: 61}$

________

Hope it helps.

ŕάίήвόώşάĻţ2²2²

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3 years ago

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What is half of 7 5/8 and 5 3/8

meriva

Answer:

6.5

Step-by-step explanation:

7 5/8 + 5 3/8= 13

13/2=6.5

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3 years ago

Hi, Guys This is Math 5th Grade I was Doing my homeWork when I did not know a question and I decided maybe 1 of you guys can hel

alexgriva [62]

Answer:

Circle A's attributes were used to be organized because both shapes have a right angle. Circle B's attributes were used to be organized because both shapes have 2 sets of parallel lines that are across from each other. The middle was organized because both shapes have 2 sets of parallel lines and 4 right angles.

Step-by-step explanation:

Let me know if this helps!

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2 years ago