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Xelga [282]
3 years ago
10

I need help 20 points for this !!!

Mathematics
1 answer:
icang [17]3 years ago
8 0

Answer:

Step-by-step explanation:

X=44

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PLEASE HELP WILL GIVE YOU THE BRAINLIEST!!
Ivenika [448]

Answer:

40

Step-by-step explanation:

34 to 40 eaasssy i think ims ry if wrong or it might be 35

3 0
3 years ago
Coach Yip decides to order pizza delivery for the team after a game. The pizza shop is having a promotion where any large pizza
Nana76 [90]
The answer is B. You will get that after multiplying 12.99 by 4, and then calculate the tax and add 2.50
5 0
3 years ago
Read 2 more answers
Simon has a scale model of the Concorde airplane. The actual length of the Concorde is approximately 200 feet. If the ratio of t
Verizon [17]
The answer is:  "40 cm " .
_________________________________________________________
<u>Note</u>:
_________________________________________________________

\frac{200 ft }{ (x) cm} = \frac{5}{1}  ;

Solve for "x" (in "cm" ) ; 


→  5x = 200 * 1 ; 

→  5x = 200 ; 

Divide each side of the equation by "5" ; 
   to isolate "x" on one side of the equation; & to solve for "x" ; 

→  5x / 5 = 200 / 5 ; 

to get:

→  x = 40 .
___________________________________________________________
The answer is:  " 40 cm " .
___________________________________________________________
6 0
3 years ago
Read 2 more answers
The polynomial $f(x)$ has degree 3. If $f(-1) = 15$, $f(0)= 0$, $f(1) = -5$, and $f(2) = 12$, then what are the $x$-intercepts o
Alex_Xolod [135]

Your calculator's cubic regression function can tell you the equation is

... f(x) = 2x³ + 5x² -12x = x(x +4)(2x-3)

The x-intercepts are -4, 0, +1.5.

_____

If you want to solve this "by hand", you can first of all recognize that since there is an x-intercept at 0, the cubic will only have three coefficients. That is, you can write the equation as

... f(x) = ax³ + bx² + cx

Substituting the given points (except (0, 0)) gives three linear equations in a, b, c.

... -a +b -c = 15 . . . . . for x=-1

... a + b + c = -5 . . . . for x=1

... 8a +4b +2c = 12 . . for x=2

adding the first two equations gives 2b=10, or b=5. Now, you can reduce the system to

... a + c = -10

... 4a +c = -4

Subtracting the first of these equations from the second gives 3a=6, or a=2. That tells you c=-12 (from a+c=10).

Then your equation is

... f(x) = x(2x² +5x -12)

Factoring by any of the usual techniques, or graphing, or using the quadratic formula will tell you the zeros (x-intercepts) are as above.

_____

Since the input values are sequential, you can also develop the function from differences of the output values. Those are 15, 0, -5, 12. First differences are -15, -5, +17. Second differences are +10, +22. The third difference is 12. Using the first of these differences in appropriate places in the interpolating polynomial formula, we have

... f(x) = 15 + (x+1)(-15 + (x)/2·(10 + (x-1)/3·(12))) = 2x³ +5x² -12x . . . . as above

4 0
2 years ago
The ratio of red to green tiles in a pattern is 2:3 what fraction of the tiles are green
zhannawk [14.2K]
The answer is 2/10


your just reducing the ratio
3 0
3 years ago
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