−4x−y=24minus, 4, x, minus, y, equals, 24Complete the missing value in the solution to the equation.

Mathematics

1 answer:

Serggg [28]3 years ago

4 0

Answer:

there is no solution to the problem but after calculating and searching a possible answer is

x = -6

y = 0

Step-by-step explanation:

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If you are allowed to use numbers 1 – 20 and need to choose the passcode of an exact 4 digit code, how many possibilities are th

VMariaS [17]

Since in a pass code, the placement of the digits is important, therefore this means that to solve for the total number of possibilities we have to make use of the principle of Permutation. The formula for calculating the total number of possibilities using Permutation is given as:

P = n! / (n – r)!

where,

n = is the total amount of numbers to choose from = 20

r = is the total number of digits needed in the passcode = 4

Therefore solving for the total possibilities P:

P = 20! / (20 – 4)!

P = 20! / 16!

P = 116,280

<span>Hence there are a total of 116,280 possibilities of pass codes.</span>

4 0

3 years ago

Fathi has \$1.10$1.10dollar sign, 1, point, 10 in his printing account. Each sheet of paper he uses reduces his printing account

Pavlova-9 [17]

Answer:

-1.9

Step-by-step explanation:

He has $1.10 in his printing account. 0.25 each sheet of paper.

47 pages.

He printed both sides so 47:2= 23.5.

Because he printed 2 pages then we divide by 2.

23.5:2=11.75

We cannot print a half of page, so we print 12 pages.

12*0.25=3

1.10-3=-1,9

His printing account will be in minus.

8 0

4 years ago

Can anyone help me with this?

aleksklad [387]

With the given table, this isn't possible without resorting to an approximation of an approximation.

The interval $[0,8]$ can be partitioned as $[0,2]\cup[2,4]\cup[4,6]\cup[6,8]$ , with the respective midpoints of $t\in\{1,3,5,7\}$ . So the average temperature is given exactly by the definite integral

$\displaystyle\frac1{8-0}\int_0^8f(t)\,\mathrm dt$

which is approximated by

$\displaystyle\frac14\sum_{t\in\{1,3,5,7\}}f(t)=\dfrac{f(1)+f(3)+f(5)+f(7)}4$

where the coefficient $\dfrac14$ comes from the fact that each subinterval has length 2, and so $\dfrac28=\dfrac14$ .

However, you don't know the values of $f(t)$ at these points. At best you can approximate them, perhaps by interpolating $f(t)$ (you have the details needed to do it, at any rate).

Are you sure you're not supposed to find the average temperature over the entire set of observation times, i.e. over $0\le t\le16$ ?