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maksim [4K]
3 years ago
10

Plz help me pls

Mathematics
1 answer:
NikAS [45]3 years ago
8 0

Answer:

8hr=480min

30min=1800sec

15hr=900min

5yr=1825d

Step-by-step explanation:

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Which expression is equivalent to (-3y - x) - (5y - 8x)?
Vinil7 [7]

Answer:

b

Step-by-step explanation:

plz mark brainliest

4 0
3 years ago
Find the line y=a+bx which best approximates the data points
Vika [28.1K]

Answer:

y = 11.84x - 32.71

Step-by-step explanation:

Here, the given data points,

(−3,−70),(−1,−42),(1,−21),(2,−9),(4,14),

Let x represents the input value and y represents the output value,

So, the table that represents the given situation is,

x         -3            -1             1             2             4

y       -70          -42         -21         -9             14

By the above table,

\sum x=3

\sum y=-128

\sum xy = 269

\sum x^2=31

\sum y^2 = 7382

Let the equation of the line is,

y = bx + a

Where,

a=\frac{\sum y \sum x^2 - \sum x\sum xy}{n(\sum x^2)-(sum x)^2}

b=\frac{n\sum xy - \sum x \sumy}{n(\sum x^2)-(\sum x)^2}

n = number of data points = 5,

By substituting the values we get,

a = - 32.70547945 ≈ - 32.71,

b = 11.84246575 ≈ 11.84,

Hence, the equation of line would be,

y = 11.84x - 32.71

8 0
2 years ago
Give a brief explanation as to what kind of solution you expect for the linear equation 18x +1/2 equals 6(3x +25). Transform the
Makovka662 [10]

Answer:

there cannot be any solution of the given linear equation.

Step-by-step explanation:

i) the linear equation of 18x + \frac{1}{2} = 6(3x + 25)

ii) transforming the equation to a simpler form we get

              18x + \frac{1}{2} = 18x + 150  which implies that \frac{1}{2} = 150 which is not true.

iii) therefore there cannot be any solution of the given linear equation.

6 0
3 years ago
What is a force described by
Dima020 [189]

Answer:

a force is described by its strength and by the direction in which it acts. -The strength of a force is measured in the SI unit called the Newton (N).

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Simplify the following expression: (x + 6y) − (3x − 10y). If the final answer is written in the form Ax + By, what is the value
Andrews [41]
<span>(x + 6y) − (3x − 10y)
= x + 6y -3x + 10y
= -2x + 16y 

Value of A: -2</span>
3 0
3 years ago
Read 2 more answers
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