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stiks02 [169]
3 years ago
12

-5/6x-7/30x+1/5x-52 please help me guys cuz imk not good with math

Mathematics
1 answer:
Marina CMI [18]3 years ago
7 0

Answer:

\frac{-13}{15} x-52

Step-by-step explanation:

\frac{-5}{6}x-\frac{7}{30}x+\frac{1}{5}x-52

=\frac{-5}{6}x+\frac{-7}{30}x+\frac{1}{5}x+-52

Combine Like Terms:

=\frac{-5}{6}x+\frac{-7}{30}x+\frac{1}{5}x+-52

=(\frac{-5}{6}x+\frac{-7}{30}x+\frac{1}{5}x)+(-52)

=\frac{-13}{15}x+-52

Therefore, \frac{-13}{15}x+-52 will be your final answer.

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Recall the chapter example which described the fact that the mean IQ in large, diverse populations is 100 and the standard devia
vova2212 [387]

Answer:

The margin of error for the 99% confidence level for this sample is ±2.23.

None of the given figures is close to the answer:

E. None of the above

Step-by-step explanation:

margin of error (ME) around the mean can be calculated using the formula

ME=\frac{z*s}{\sqrt{N} } where

  • z is the corresponding statistic of the 99% confidence level (2.576)
  • s is the population IQ standard deviation (15)
  • N is the sample size (300)

Using these numbers we get:

ME=\frac{2.576*15}{\sqrt{300} }  ≈ 2.23

7 0
3 years ago
What is the lcm for 3/4and 1/2​
ioda

Answer:

1 1/2

Hope that helps!

Step-by-step explanation:

4 0
3 years ago
Please help me thank you.
Alexxandr [17]

Answer:

B

Step-by-step explanation:

3      -4    |   2

0      -1     |   7

3/2    -2    |   1

R1/3 ----> R1  (divide Row 1 by 3)

1       -4/3    |  2/3

0        -1      |   7

3/2      -2     |   1

R3 - 3/2  R1 -------> R3 (multiply Row 1 by 3/2 and subtract it from Row 3)

1      -4/3    |   2/3

0       -1      |    7

0       0      |    0

R2 / -1 -------> R2 (Divide Row 2 by -1)

1      -4/3   |  2/3

0        1     |   -7

0        0    |   0

R1 + 4/3 R2 --------> R1 (Multiply Row 2 by 4/3 and add it to Row 1)

1     0     |   -26/3

0    1      |      -7

0    0     |      0

5 0
3 years ago
Hiii please help i’ll give brainliest if you give a correct answer tysm!
ANTONII [103]

Answer:

7

Step-by-step explanation:

because 105/15=7

84/12=7

28/4=7

so 1x7=7

8 0
3 years ago
Read 2 more answers
The train station clock runs too fast and gain 11 minutes every 3 days. How many minutes and seconds will it have gained at the
WARRIOR [948]
660sec in 3 days.
So 220sec per days
220•5= 1100
1100sec = 18min and 30 second.

Ans:
18min and 30 sec
5 0
3 years ago
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