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pashok25 [27]
2 years ago
5

I need help with this question.

Mathematics
1 answer:
ivann1987 [24]2 years ago
4 0

9514 1404 393

Answer:

  a8 = 4

Step-by-step explanation:

Put 8 where n is and do the arithmetic.

  a8 = (1/2)(8) = 8/2 = 4

The 8th term of this arithmetic sequence is 4.

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427,266 to the nearest ten thousand
GaryK [48]

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430,000

Step-by-step explanation:

Since the thousandths place is more than 4 you can round up the ten thousands

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If angle a measures 64 then what does angle b measure?
Naddik [55]

Answer:

b = 26°

Step-by-step explanation:

a ; b = complementary =>

a + b = 90°  } => b = 90° - 64° = 26°

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The correct scientific notation for the number 500.0 is
marishachu [46]

Answer:

The correct scientific notation for the number 500.0 is 500=5.0\times10^2

Step-by-step explanation:

While writing a large number in scientific notation we do below mentioned two things.

  • We take any number between 1 and 10
  • Then we multiply this number with an exponent of 10.

Hence, any number in scientific notation is in the form a\times10^b

Here a is any number between 1 and 10.

b is exponent of 10.

Now, writing 500 in scientific notation, we take a = 5

Hence, we have to take b = 2, since 5 multiplied by 100 equas 500.

Thus, we have

500=5.0\times10^2

5 0
3 years ago
(-4^-2) (49^-1/2)<br><br> Evaluate the expression
Marizza181 [45]

Answer:

-1/112

Step-by-step explanation:

-4^{-2}=\frac{1}{-4^2}=-\frac{1}{16} \\ \\ 49^{-1/2}=\frac{1}{49^{1/2}}=\frac{1}{7} \\ \\ (-1/16)(1/7)=-1/112

5 0
1 year ago
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