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KATRIN_1 [288]
3 years ago
5

Plz hellllllllllllllllllppppppp add explanation plz

Mathematics
1 answer:
butalik [34]3 years ago
8 0

Answer:

5*5*5 - 12 / 3 = 121

Step-by-step explanation:

5^3 = 5 * 5 * 5 = 25 * 5 = 125

12/3 = 4

We evaluate exponents first: 5^3 = 125

Then division: 12/3 = 4

Then subtraction: 125 - 4 = 121

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The average mark of candidates in an aptitude test was 128.5 with a standard deviation of 8.2.Three scores extracted from the te
Luba_88 [7]

Answer:

102

Step-by-step explanation:

We have the mean (m) 128.5 and the standard deviation (sd) 8.2, we must calculate the value of z for each one and determine whether or not it is an outlier:

z = (x - m) / sd

In the first case x = 148:

z = (148 - 128.5) /8.2

z = 2.37

In the second case x = 102:

z = (102 - 128.5) /8.2

z = -3.23

In the first case x = 152:

z = (152 - 128.5) /8.2

z = 2.86

The value of this is usually between -3 and 3, therefore when x is 102 it goes outside the range of the value of z, which means that this is the outlier.

3 0
3 years ago
15<br> 20<br> Need to reduce this fraction to the lowest terms
wlad13 [49]

Answer:

3/4

Step-by-step explanation:

BTW...can i plz get brainliest???   pllzzzzzz

7 0
3 years ago
Read 2 more answers
) A car leaves a town at 30 miles per hour. How long will it take a second car traveling at 38 miles per hour to catch the first
Mumz [18]

Answer:

4hrs

Step-by-step explanation:

4 0
2 years ago
Make up an equation of the form y = kx +b, the graph of which passes through the following points: A (8, –1) and B (–4, 17)
igor_vitrenko [27]

Answer:

One equation would be y= -1.5x +11

Step-by-step explanation:

Here's a table to show the coordinates

x:             y:

8              -1

-------------------

-4             17

the x coor. 8  goes down by 12 to get to the next x coor. -4.

8-12= -4

the y coor. -1 goes up by 18 to get to the next y coor. 17.

-1+18= 17

therefore 18/-12 is -1.5 which can be your k in y=kx+b.

Check your answer.

-1.5*8= -12 but when you add 11, you get the y coor. -1

Do the same with the other x coor.

-4*-1.5= 6 + 11 =17

11 can be your b in the slope-intercept form equation.

One equation may be y = -1.5x +11

4 0
3 years ago
The diagram below shows a proportional relationship between the number of bags of chips and the price.
rusak2 [61]

Answer:

it would be B 3.09 per bag of chips

8 0
3 years ago
Read 2 more answers
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