All Answers 358090 Answers

-2/5,-0.2,0.2.

-2/5 is -0.4.

10^2 = 100 is the one i was thinking of but 2 - (1+1)=000 also works

10^2  = 100

No. pi is 3.14159562559, not 3.4

it would be a proportion like 1:1 or something

8 ft = 96 inches

So the scale of the drawing is 4:96 or just 1:24

 no its about 3.4

it would be 8ft squared

True.....if we know either angle E or F, we can find the reamaining angle and then use the Law of Sines to find the remaiming two sides.

+7,+3,-1,-8,-15

$$2-\left( 1+1\right)=000$$

Pi is an irrational number which is roughly 22/7.

It is used in numerous mathematical equations about circles, $${\mathtt{\pi}}$$d is used to find the circumference of a circle, pi multiplied by the diameter. To find the area of a circle, used $${\mathtt{\pi}}$$r^2. Pi times the radius squared.

The circumference equation can be rearranged to find pi. $${\mathtt{\pi}} = {\frac{{\mathtt{C}}}{{\mathtt{d}}}}$$ where C is the circumference and d is the diameter.

So angle FED is $${\mathtt{180}}{\mathtt{\,-\,}}{\mathtt{45}}{\mathtt{\,-\,}}{\mathtt{63}} = {\mathtt{72}}$$

The Sine rules states that sinD/d = sinE/e = sinF/f, where the lowercase letter is the side opposite to the angle in captials.

sinE/3.8=sinF/DE

$${\frac{\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{72}}^\circ\right)}}{{\mathtt{3.8}}}} = {\mathtt{0.250\: \!278\: \!030\: \!603\: \!947\: \!4}}$$

$${\frac{\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{72}}^\circ\right)}}{{\mathtt{3.8}}}} = {\frac{\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{45}}^\circ\right)}}{{\mathtt{x}}}}$$

$${\mathtt{x}} = {\frac{\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{45}}^\circ\right)}}{{\mathtt{0.250\: \!278\: \!030\: \!603\: \!947\: \!4}}}} \Rightarrow {\mathtt{x}} = {\mathtt{2.825\: \!285\: \!061\: \!899\: \!665\: \!9}}$$

Round this to the nearest tenth of an inch and that would be 2.8 inches.

LOL! XD I HAVE TO SCREENSHOT THIS! x)

8  =  1/4·f(-2x)     ===>    32 = f(-2x)    ===>    f(-2x) = 32

This indicates that the function  f(x)  is a constant function; that is, for every value of  x,  the answer is  32.

So the question is -3-(-6)+5^4=628

$${\left(\left({\mathtt{\,-\,}}{\mathtt{3}}{\mathtt{\,\small\textbf+\,}}\left({\mathtt{6}}\right)\right){\mathtt{\,\small\textbf+\,}}{\mathtt{5}}\right)}^{{\mathtt{4}}} = {\mathtt{4\,096}}$$

the -(-6) was changed to a +6 because 2 minuses = a positive

3c^4·(6c^3 + 7c)    =    3c^4·(6c^3)  +  3c^4·(7c)

                               =  18c^7 + 12c^5

Multiply numbers times numbers and variables times variables. If the bases are the same under multiplication, add the exponents.

Since kj = mj, k = m.

Since lk = nm and k = m, l = n.

If you do it by trial-and-error, there are a lot of possibilities;  

15  can be factored as  (1 and 15)  or  (3 and 5)

32  can be factored as  (1 and 32)  or  (2 and 16)  or  (4 and 8)  or  (8 and 4)  or  (16 and 2)  or  (32 and 1)

Since the last term is positive, the two factors must either be both positive or both negative; since the middle term is negative, they must both be negative.

(n - 1)(15n - 32) =

(n - 2)(15n - 16) =

(n - 4)(15n - 8) =

(n - 8)(15n - 4) =

(n - 16)(15n - 2) =

(n - 32)(15n - 1) =

(3n - 1)(5n - 32) =

(3n - 2)(5n - 16) =

(3n - 4)(5n - 8) =

(3n - 8)(5n - 4) =

(3n - 16)(5n - 2) =

(3n - 32)(5n - 1) =

One of the above is correct, the problem is to determine which of the above has the correct middle term, the O and I of FOIL.

It's there ...

A formula that calculates the sum is:  Sum  =  n(f + l) / 2

where  n  is the number of terms (if you want the sum of 14 terms, n = 14),

f  is the value of the first term, and

l  is the value of the last term (if you want the sum of 14 terms, l is the value of the 14th term.

If you do algebra, the best way is to substitue all the numbers you find back in.

5x+7=20

20-7=15

5x=15

x=3?

3x5+7=20?

15+7=22 not 20 so x=/=3 so somewhere i went wrong.

Sometimes, doing a question a number of times can help check for errors. Say i had a binomial expantion. I would do it at least twice to make sure all the answers I got were the same.

You can also rearrange an answer to see if it still works and also do some question backwards to see if you get the same start.

34x29-12=972?

972 +12 = 984

984/29=33.586

Somewhere i went wrong.

Dont forget to reverse bidmas/bodmas/pidmas or whatever you call it when reversing a calculation.

If its done on a calculator, you can input the question in a number of times to make sure you didn't press a wrong button.

g - (-16)  =  4                            Since     -(-16)  = +16:

g + 16  =  4                               Subtract 16 from both sides:

g + 16 - 16  =  4 - 16

g  =  -12

A constant term is a term that does not change, no matter what numbers are substituted in. 7x is not a constant variable because if x=2 then 7x=14. 2x^2 is not constant because if x=2, then 2x^2=8

The only term in this that does not change at all is 17, because it has no variable attached.