All Answers 353121 Answers

Hmm i think it is 3 1/10 maybe?

What  is    3   1/0      supposed  to be   ????

Hmm if i renember correctly the pythagoren theyrom was a^2+b^2=c^2 so in this case c should be 7^2+5^2=c^2 which equals to 49+10=c so 59 = c. I think? You can ask again if im wrong

Thanks Can you help on my other qustions Plzz

https://web2.0calc.com/questions/help-plzz_9#r2

First one

Area  =  (1/2) (WX) (WY)  sin W  =  (1/2) (10.3)(12.8) sin ( 63°)  ≈  58.7 in ^2 

Second one

arc length  =   r *  central angle  in radians

(7/15)pi  = 14  *  central angle        divide  both  sides  by 14

(1/14) (7 / 15) pi  =   central angle  =  (7 / 210) pi   =  (1/30)pi

Last  one

sin θ  =  -  sqrt  [ 1  -  cos^2 theta ] =  - sqrt  [ 1 -  2/9 ]  =  - sqrt [ 7] / 3

sin B  =  4/5     cos B  = 3/5

sin ( θ  + B)    = sinθ cos B  + sin B cos θ   =   [ - sqrt (7)/3 ] [ 3/5]  +  [ 4/5] [ -sqrt (2) / 3   ]  =

[ -3sqrt (7)  - 4sqrt (2)  ] /  15

8   +   8(1.05)    + 8 (1.05)^2   + 8 (1.05)^3 ......8(1.05)^8

 8 * \(\sum_{0}^{8}\)  1.05ⁿ      = 8 x 11.0265 =  ~~88.213 ~~ 88 miles     Edited: I made a typo   had 10.0265   should be 11.0265

Thanks Again for the help!!

Great work! Well done!

I dont understand is it not correct

sinx x and cosx   normally have midline = 0     this one is shifted UP 3 units     so it needs a +3 at the end....

     all of these fit that req

y intercept at 3    means it is a sin function   which normally has 0  as y-axis intercept...it is shifted up 3

3 cycles in 2 pi means the function of x is sped up three times    sin (3x)     (normally cycle is 1 time per 2 pi)

sin (3x) + 3

max value of 6 means it has been multiplied by 3    usually max value is 1    multiplied by 3   then equals3    then shifted up 3   = max value 6

3 sin(3x) + 3

1)  sin(-x)  =  -sin(x)  

     tan(-x)  =  -tan(x)

     sin(-x) · tan(-x)  =  -sin(x) · -tan(x)  =  sin(x) · tan(x)

The roots of 2x^ 2- 10x + 13 = 0 are (5 - i)/4 and (5 + i)/4, so ab = (5/4)(-1/4) = -5/16.

f(x) and g(x) have a common x-intercept.

True.....the  both  have  the x intercept  of  (2,0)

f(x) is greater than g(x) for all values of x.

False  .......at x  = 4, f(x)  =  0  but  g(x)   = 2

f(x) and g(x) have the same y-intercept.

Definitely False......g(x)  has a positive y intercept  = 2, f(x)  has a negative  y intercept

f(x) and g(x) intersect at two points.

False......the  only common point is  (2,0)

Town A is 50 km south of town B. Town C is 120 km east of town B. Is it quicker to
travel directly from A to C by car at 90 km h¡1 or from A to C via B in a train travelling
at 120 km h¡1?

that was my friend but coudnt find the post sos

Pretty sure it was    BOTH questions had this basic header:

plz CHPHILL HELP THANK YOU

I apologize if it was NOT you....but please look at recently posted Qs to see if yours is there already....

If  the area  of PQRS  =  66 cm^2

Then   

PQ * QR =   66

PQ * 12  =  66       divide both sides  by 12

PQ  =  66 / 12   =  33 /  6  =   5.5  = BC

And the perometer of  ABCD  = 30 cm

So

2 (BC  +  AB)   =   30      divide both sides  by 2

BC +  AB   = 15

5.5  + AB  = 15        subtract 5.5  from both sides

9.5  = AB

Here is the Quadratic Formula:

\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)       the   b^2-4ac   part is the discriminant      5x^2 -2x+8        a = 5        b = -2      c= 8

                                                                 plug in those values and compute ! 

Divide 28 by 42, which is 66.6 and multiply 0.66 by 24, and you get 16.

sorry that wasnt me???????????

DO NOT POST QUESTIONS MORE THAN ONCE !!!!   

https://web2.0calc.com/questions/plzzzz-help-asap_1#r1

If they sold 7 pak black   and  2 pack red   and 4 pack green    that would total    7x3   +   2x5    +  4x6 =  55 pens   

     they sold  FOUR times that many pens (220)       220/55 = 4   

            so the true number of packs must all be multiplied by 4      green packs from ratio is 4      multiply by 4 = 16 packs of green were sold on Monday

                    16 packs x 6 green pens in each pack = 96 green pens sod on Monday

17  * 13   =    221   grams  =  amount of dog food ( in grams )needed  by  dog

221  / 558  *   6    ≈    2.4  =  cups needed

thank you