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miv72 [106K]
3 years ago
7

Can somebody help me with this question please and fast!! I’ll mark brainliest

Mathematics
1 answer:
Gnoma [55]3 years ago
8 0

Answer:

The midrange of the data set shown is 85

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na2s + hcl _____ nacl + h2s Which of these would represent the coefficients needed to balance this equation? A) 1, 1, 1, 1 B) 1,
USPshnik [31]

Answer:

B) 1, 2, 2, 1

Step-by-step explanation:

In given equation:

Left side:                                Right Side:

  2 Na                                          1 Na

  1 S                                              1 S

  1 H                                             2 H

  1 Cl                                             1 Cl

To equal the number of Na and H atoms on both sides, HCl and NaCl will have a coefficient of 2 to balance the equation while Na₂S and H₂S will have a coefficient of 1.

1 Na₂S + 2 HCl ⇒ 2 NaCl + 1 H₂S

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3 years ago
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Verdich [7]

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\tan( \alpha )  =  \frac{8}{15}

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3 years ago
The quotient of two numbers is 4 and their difference is 39. What is the smaller number of the two?
MatroZZZ [7]

Answer:

13

Step-by-step explanation:

x/y = 4

x=4y

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4y - y = 39

3y = 39

y= 13

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The digit in the tens place is the value of a fraction with the same numerator and denominator
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