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Ok? What do i do with that?

(-8 - c)(-1) ....distribute the "-1" over the terms in the parentheses....so we have....

8 + c

An irrational number is a number that cannot be expressed as a ratio using two integers. "Pi," "e," and any number that cannot be completely taken out of a radical are irrational numbers.

y=x-2

y=4x+1

Since  y = x-2 in the first equation, substitute this for y in the second equation...so we have...

x-2 = 4x+1     add 2 ro both sides and subtract 4x from both sides

-3x = 3         divide both sides by -3

x = -1           to find y, substitute -1 for x in either equation....so we have, using the first equation....

y = -1-2  = -3     ......so our solution is.......

(-1,-3)

This is just the graph of a straight line......we only need two points to draw the graph.....

So let x = 0, and y  = 2

And let y =0 and x  = -2

So we have the two points,  (0, 2) and (-2, 0). Connect them with a line, and there's your graph....!!!

The sum of the first "n" even numbers  is given by ...

n (n + 1)

something i know take a number like 1235400000000000 sci notes requrie the number be between 1 and 10 so 1235400000000000 move the decimal < to make it smaller 1.2354*10^12

I like to call this type of problem a "see-saw" problem.

If 20 men finish 1/4 of a job in 8 days, it will take them 24 more days to do the job. Then, the question is how many men would it take to finish the job in 5 days?? So we have....

20 men*24 days = x men * 5 days

x = 20*24/5 = 96 men could finish the job in 5 days. But since we alreafy have 20 men, we need 76 additiomal men.....!!!!

one half is equal to 505 or 50/100 or 1/2=.5

minus before number -1

The cosine of the angle would be 14/19 (adjacent/hypotenuse), so

$${\mathtt{angle}} = \underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{cos}}^{\!\!\mathtt{-1}}{\left({\frac{{\mathtt{14}}}{{\mathtt{19}}}}\right)} \Rightarrow {\mathtt{angle}} = {\mathtt{42.536\: \!898\: \!362\: \!986^{\circ}}}$$

or angle ≈ 42.5°

ms is often an abbreviation for millisecond, but it could easily stand for something else, depending on the context in which it is used.

This is -11 - - 4 = -11 + 4 = -7

You haven't specified an equation, which must have something on both sides of an equals sign, so, as it stands, you can't solve for anything.

You could write it as 0.001132 or 1132*10^-6 or 1.132*10^-3

Type it into the calculator almost as you have written it, but put brackets round the 1/5:  2.5^(1/5)

You just need to use the ^ symbol from your keyboard.

Let s = 1 + 4 + 7 + ... + 85

This is an arithmetic series for which the sum is obtained by taking the average of the first and last terms and multiplying by the number of terms.  Here there are 29 terms so:

$${\mathtt{s}} = {\frac{{\mathtt{29}}{\mathtt{\,\times\,}}\left({\mathtt{1}}{\mathtt{\,\small\textbf+\,}}{\mathtt{85}}\right)}{{\mathtt{2}}}} \Rightarrow {\mathtt{s}} = {\mathtt{1\,247}}$$

I assume ba is a single variable name, not b*a.

From the laws of indices (powers) we have z^m*zⁿ = z^m+n

For example think of 2³*2² = 2*2*2*2*2 = 2⁵ = 2³⁺²

In your case  ba^x+Δx = ba^x*ba^Δx, so if you divide this by ba^x you are left with ba^Δx

Its called the square root function √. You should get 30.

So yes 76 more men, for a total crew of 96 men. I always forget to read the fine print.

If it took 20 men, 8 days to complete 1/4 of the work, then the total job requires 4x8dayx20men=640 man-days. If you have 3/4 of the job to go, then you require 0.75x640 = 480 man-days left to complete the job. If you have only 5 days left, then 480 man-days/5 days = 96 men. Easy pieze, Cheers Ty