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Dovator [93]
4 years ago
5

Solve for(x-4)(x+4)=

Mathematics
1 answer:
Lubov Fominskaja [6]4 years ago
7 0

Answer:

x^2-16

Step-by-step explanation:

x^2-4^2

x^2-16

difference of squares

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one month Miguel rented 5 movies and 3 video games for a total of $27. The next month he ordered 2 movies and 6 video games for
34kurt

Answer:

The price of each movie is $2.25

The price of each video games is $5.41  

Step-by-step explanation:

Given as :

Miguel rented 5 movies and 3 video games for a total cost = $27

Next day Miguel rented 2 movies and 6 video games for a total cost = $36

Let The cost of each movie = $m

And The cost of each video game = $v

Now, According to question

5 m + 3 v = 27            .....1

2 m + 6 v = 36          ...........2

Now, solving the equation

2 × (5 m + 3 v)  - (2 m + 6 v) = 2 × 27 - 36

Or, 10 m + 6 v - 2 m - 6 v = 54 - 36

Or, (10 m - 2 m) + (6 v - 6 v) = 18

Or, 8 m + 0 = 18

∴ m = \dfrac{18}{8} = \dfrac{9}{4}

i.e m = $2.25

So, The price of each movie =  m = $2.25

Again, put the value of m into eq 2

So, 2 × 2.25 + 6 v = 36  

Or, 4.5 + 6 v = 36  

Or, 6 v = 36 - 4.5

Or, 6 v = $32.5

∴ v = \dfrac{32.5}{6}

i.e v = $5.41

So, The price of each video games = v = $5.41

Hence, The price of each movie is $2.25 and

The price of each video games is $5.41  Answer

7 0
3 years ago
0.07 x 1.22 = help thanks
Masteriza [31]

0.07 * 1.22 = 0.0854

4 0
3 years ago
Read 2 more answers
Please help 15 points
Ksenya-84 [330]

Answer:

  D. The graph of g(x) is the graph of fix) translated to the left 7 units and up 9 units

Step-by-step explanation:

The transformation of f(x) to g(x) ...

  g(x) = a·f(b·x -c) +d

involves ...

  • vertical expansion by a factor of "a"
  • horizontal compression by a factor of "b"
  • translation to the right by "c" units
  • translation up by "d" units

Here, you have a=b=1, c=-7, d=9, so the graph of f is translated left 7 units and up 9 units to make the graph of g.

3 0
4 years ago
Use substitution to solve the linear system of equations.
goblinko [34]

Answer:

(4, - 2 )

Step-by-step explanation:

Given the 2 equations

x = 4 → (1)

- y = \frac{1}{2} x → (2)

Substitute x = 4 into (2)

- y = \frac{1}{2} × 4 = 2 ( multiply both sides by - 1 )

y = - 2

Solution = (4, - 2 )

6 0
3 years ago
Ethan has saved $180 to buy a bicycle which costs $540. He wants to find out how much more he needs to save to buy bicycle. Whic
Ede4ka [16]
180 + x = 540
-180 = -180
X = 360
4 0
3 years ago
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