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bazaltina [42]
2 years ago
6

2. Solve - Sy + 13y 45 for y.

Mathematics
1 answer:
zimovet [89]2 years ago
5 0
This makes no sense
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A set of exam marks has mean 70 and median 65 marks. It is decided to subtract 10 from all the marks. For the new set of marks,
Aleks04 [339]

Answer:

For the new set of marks, the median is of 55

Step-by-step explanation:

The median is the halfway point of a dataset, that is, the value that separates the lower 50% of the data set from the upper 50%.

In a data set, if we subtract or add all marks by x, the median will be subtracted or added by x.

In this question, we have that:

Median 65

From all marks, 10 is subtracted.

So, for the new set of marks, the median is of 65 - 10 = 55

6 0
3 years ago
A person walking across a bridge accidentally drops an orange into the river below from a height of 40 feet. The function h = −1
FromTheMoon [43]
H=0
0=-16t^2+40
-40=-16t^2
-40/-16=2.5=t^2
t= sqrt2.5
t=1.58seconds

a
4 0
3 years ago
Read 2 more answers
Are the graphs of the lines in the pair parallel? Explain.<br><br> y = 5x + 6<br> –18x + 3y = –54
raketka [301]
I hope this helps you



y=5x+6 this lines slope= -5


-3 (6x-y)= -54


6x-y= 18

y= 6x-18 this lines slope= -6


parallel lines slopes equal

-5 is not equal -6 not parallel



8 0
2 years ago
Read 2 more answers
Calcule el precio de un rollo de alambre si se
Ostrovityanka [42]

Answer:

A. Encuentre el

valor absoluto. por definición, el valor absoluto es la magnitud de un número real sin tener en cuenta su signo 1. | 120 | = 120 2. | -45 | = 45 3.

Step-by-step explanation:

6 0
3 years ago
Find the value of the determinant.<br> 4 8 10<br> 4 0-1<br> 3 - 2 4
VLD [36.1K]

Answer:

- 240

Step-by-step explanation:

We have to find the value of the following determinant  

\left|\begin{array}{ccc}4&8&10\\4&0&-1\\3&-2&4\end{array}\right|

Now, we know that the value of a general determinant \left|\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right| is given by [a( ei - fh) + b(fg - di) + c(dh - eg)]

Therefore, the value of the given determinant is

= 4[0 × 4 - (-1)(-2)] + 8[3(-1) - 4 × 4] + 10[4(-2) - 3 × 0]

= - 8 - 152 - 80 = - 240 (Answer)

4 0
3 years ago
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