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guajiro [1.7K]
3 years ago
5

In your own words explain how you would solve this two step equation for the variable x. 9x-7=-7

Mathematics
2 answers:
NeX [460]3 years ago
6 0

Answer:

Add 7 to both sides

Step-by-step explanation:

The equation has to be just x = y

There cannot be another number on the same side as the variable

Now that we did that, the equation is 9x = 0

x = 0

Well, that was easy lol

BigorU [14]3 years ago
4 0

Answer:

Step-by-step explanation:

Add 7 to both sides

9x = 0

Then divide by 9 both sides to get x by itself

x = 0

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Function Decomposition
Tomtit [17]

Answer:

g(x)=(x+5)

Step-by-step explanation:

we have

h(x)=f(g(x))

f(x)=x^{8}

h(x)=(x+5)^{8}

we know that

The variable of the function f(g(x)) is equal to the function g(x)

so

f(x) -----> f(g(x))

x^{8} -----> (x+5)^{8}

The variable x becomes (x+5)

therefore

The function g(x) is equal to

g(x)=(x+5)

4 0
3 years ago
Isabelle invested $25,000 into an account that earns 3% annual interest compounded quarterly. If she makes no other deposits int
8_murik_8 [283]

Answer: $45451

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1+r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

From the information given,

P = 25000

r = 3% = 3/100 = 0.03

n = 4 because it was compounded 4 times in a year.

t = 20 years

Therefore,

A = 25000(1+0.03/4)^4 × 20

A = 25000(1+0.0075)^80

A = 25000(1.0075)^80

A = $45451

3 0
3 years ago
If you earn $3500 per month and you expect your earnings to increase by 2.3% per year, how much do you think you will be making
Y_Kistochka [10]
\bf \qquad \textit{Amount for Exponential Growth}\\\\
A=I(1 + r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
I=\textit{initial amount}\to &3500\\
r=rate\to 2.3\%\to \frac{2.3}{100}\to &0.023\\
t=\textit{elapsed time}\to &10\\
\end{cases}
\\\\\\
A=3500(1+0.023)^{10}
8 0
4 years ago
The board of directors of Midwest Foods has declared a dividend of $3,500,000. The company has 300,000 shares of preferred stock
FinnZ [79.3K]

Answer:

  1. $855,000
  2. Dividend per share of common stock = $1.06

Step-by-step explanation:

1. Preferred Share dividends.

There are 300,000 preference shares and each of them got $2.85. Total dividends are;

= 300,000 * 2.85

= $855,000‬

2. Total dividends = $3,500,000

Dividends left for Common Shareholders (preference gets paid first)

= 3,500,000 - 855,000

= $2,645,000

Common shares number 2,500,000

Dividend per share of common stock = \frac{2,645,000}{2,500,000}

= $1.06

7 0
4 years ago
y is directly proportional to the positive square root of( x+2)² when x = 8 y= 250 find y when x = 4​
gulaghasi [49]

Answer:

150

Step-by-step explanation:

Since y is directly proportional to sqrt((x+2)^2), there is a constant,k, such that

y=ksqrt((x+2)^2)

We are given a pair (x,y) in this relation. Let's plug in (8,250 ) to find k.

250=ksqrt((8+2)^2)

250=ksqrt((10)^2)

250=k10

250/10=k

25=k

So for any pair (x,y) we have the relation y=25((x+2)^2).

We are asked to find y when x=4.

y=25((4+2))^2

y=25(6)

y=150

Test to see if y is proportional to sqrt((x+2)^2)

For the given points: 250/150=10/6

The equation is true so we're great.

5 0
3 years ago
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