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3 years ago

10. Write an equation to find the value of x.

Mathematics

2 answers:

vitfil [10]3 years ago

6 0

Answer:

x = (180 - 68) / 2

Step-by-step explanation:

x = 56°

Alex787 [66]3 years ago

4 0

Answer:

56°

Step-by-step explanation:

(180° - 68°) ÷ 2 = 112° ÷ 2

= 56°

your welcome :)

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A new online music service has a collection of 1,500 songs. It expects to triple the number of songs each year for the next few

Rzqust [24]

Answer: y = (3^(x-1))*1500

Step-by-step explanation:

We want the relationship

y = f(x)

where y is the number of songs, and x is the number of years.

We know that in the first year, x = 1, the site has 1,500 songs.

The next year, x = 2, the number of songs is tripled, then we will have:

1,500*3 = 4500 songs.

The next year, x = 3, we will have: 3*(3*1500) = (3^2)*1500.

when x = 4, the number is tripled again:

3*(3^2)*1500 = (3^3)*1500

We already can see the pattern, for the year x, the site will have:

y = (3^(x-1))*1500 songs.

This is the equation we are looking for.

7 0

3 years ago

How do u multiply x^2-4 over x^2-1 times x+1 over x^2+2x

Anna11 [10]

$\frac{x ^ 2-4 }{x ^ 2-1}*\frac{ x + 1 }{x ^ 2 +2 x}=\frac{x ^ 2-2^2 }{x ^ 2-1}*\frac{ x + 1 }{x(x +2 )} =\\ \\ \\ =\frac{(x -2)\not(x+2)^1 }{(x -1)\not(x+1)^1}*\frac{ \not(x + 1)^1 }{x\not(x +2)^1 }= \frac{ x-2 }{x(x-1)} \\ \\ \\ \\a^2-b^2 =(a-b)(a+b)$

6 0

3 years ago

Read 2 more answers

3(x-2)+2(x+1)=-14<br> plz show work

Rom4ik [11]

Hello!

First, let's write the problem.
$3\left(x-2\right)+2\left(x+1\right)=-14$
Apply the distributive property on the left side of the equation.
$=3x-6+2x+2$
Add like terms.
$=5x-4$
Let's plug that in into the original equation.
$5x-4=-14$
Add 4 to both sides.
$5x-4+4=-14+4$
$5x=-10$
Divide both sides by 5.
$\frac{5x}{5}=\frac{-10}{5}$

Our final answer would be,
$x=-2$

You can feel free to let me know if you have any questions regarding this!
Thanks!

- TetraFish

5 0

3 years ago

Read 2 more answers

Evaluate. for n = 15 and t = 7

Bingel [31]

Answer:

what is the equation?

Step-by-step explanation:

3 0

3 years ago

Using long division, what is the quotient of this expression?<br> X^4+4x^3-5x^2+x-3/x^2+x-3

Paladinen [302]

Answer:

Using long division method the answer is B

Step-by-step explanation:

x²+3x-5+(15x-18)/x²+x-3

7 0

3 years ago