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AVprozaik [17]
3 years ago
14

Tina has 3 stacks of 5 cds on each of 3 shelves. How many cds does she have?

Mathematics
2 answers:
trasher [3.6K]3 years ago
6 0
She has a total of 45 CDS. 

One Shelf Have 15 Cds 
 Multiply 15 x 3 and you have 45 CDs total
Andreyy893 years ago
5 0
Equation
(5 x 3) x 3=
15 x 3= 45

Answer is 45 cds

Think about it like this.
There are 3 stacks of 5 on one shelf. So there is 15 in total on 1 shelf. Since each shelf has the same number of CDs answer is 45. 15+ 15 + 15
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H(x) = x2 1 k(x) = x – 2 (h k)(2) = (h – k)(3) = Evaluate 3h(2) 2k(3) =.
natima [27]

Quadratic equation is the equation in which only one variable is unknown. The highest power of the variable is 2.The value of the given functions are,

(h+k)(x)=5

(h-k)(x)=9

3h(2)+2k(3)=17

<h3>Given information-</h3>

The given function is,

h(x)=x^2+1

k(x)=x-2

<h3>Quadratic equation</h3>

Quadratic equation is the equation in which only one variable is unknown. The highest power of the variable is 2.

1) The value of the function (h+k)(2),

(h+k)(x)=h(x)+k(x)

(h+k)(x)=x^2+1+x-2

(h+k)(2)=2^2+1+2-2

(h+k)(x)=5

2)The value of the function (h-k)(3),

(h-k)(x)=h(x)-k(x)

(h-k)(x)=x^2+1-x+2

(h-k)(3)=3^2+1-3+2

(h-k)(x)=9

3) The value of the function 3h(2)+2k(3)

3h(x)+2k(x)=3x^2+3+2x-2\times 2

3h(2)+2k(3)=3\times2^2+3+2\times2-2\times 2

3h(2)+2k(3)=17

Hence the value of the given functions are,

(h+k)(x)=5

(h-k)(x)=9

3h(2)+2k(3)=17

Learn more about the quadratic equation here;

brainly.com/question/2263981

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