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strojnjashka [21]
1 year ago
6

How much would you

Mathematics
1 answer:
Sophie [7]1 year ago
8 0
20000 ÷(1+4,75%)^20
=20000 ÷ 1,0475^20
=7905,86
You have to deposit $790586 today.
You might be interested in
Anyone know these???
Schach [20]
So you correctly wrote that the slope is represented by Δy/Δx. The Greek capital letter delta means "change in," so we are looking at the change in y divided by the change in x. You might also hear this called "rise over run," because change in y is the vertical change (rise) and change in x is the horizontal change (run).

Now, to find the change in y and x, we need to take two points, (x_1, y_1) and (x_2, y_2). We can then find the slope, m, as below:

m= \dfrac{y_2-y_1}{x_2-x_1}

So, as we're asked to state the slope and the behavior of the graph. Generally, if you see that as x increases, y increases, then the slope is positive. If y decreases, then the slope is negative. If y stays the same (constant), then the slope is zero. If x is constant, then the slope is undefined. Unfortunately, this worksheet also asks us to calculate the slope. So the equation above comes in handy!

1) let's take x = -1, y = -5 and x = 0, y = 3. We can write (x_1,y_1)=(-1,-5) and (x_2, y_2)=(0,3) (we can choose either point to be (x_1,y_1) so long as we're consistent.

m= \dfrac{3+5}{1}=8

This is a positive (+) change.

2) 

m= \dfrac{-4+1}{2} =  \dfrac{-3}{2}

Negative (–).

3) 

m= \dfrac{-9+4}{-9+6}= \dfrac{-5}{-3}= \dfrac{5}{3}

Positive (+).

4)

m= \dfrac{8-3}{-1+5}= \dfrac{5}{4}

Positive (+).

5)

m= \dfrac{4-5}{2+2}= \dfrac{-1}{4}

Negative (–).
6 0
3 years ago
Someone plz help me with all plz
Lyrx [107]

Answer:

Step-by-step explanation:

A simple fraction (also known as a common fraction or vulgar fraction, where vulgar is Latin for "common") is a rational number written as a/b or {\displaystyle {\tfrac {a}{b}}}  

b

a

​  

, where a and b are both integers. As with other fractions, the denominator (b) cannot be zero. Examples include {\displaystyle {\tfrac {1}{2}}}  

2

1

​  

, {\displaystyle -{\tfrac {8}{5}}}−  

5

8

​  

, {\displaystyle {\tfrac {-8}{5}}}  

5

−8

​  

, and {\displaystyle {\tfrac {8}{-5}}}  

−5

8

​  

.

3 0
3 years ago
What is the value of x2 + 4 for x = 5?
ladessa [460]
29
I hope this helps!
Thank you!!
5 0
3 years ago
Read 2 more answers
Please help me with this
pochemuha

Answer:

Step-by-step explanation:

(-1)^{n} * 2^{n}

then

(-1)^{6} * 2^{6} =  64

4 0
2 years ago
Let e f (x) = x2 – 2x - 4 What is the average rate of change for the quadratic function from X = -1 tox to x = 42 Enter your ans
sammy [17]

Answer:

The average rate of change of the given function

A(x) =  1

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given function f(x) = x² - 2x -4

And given that x = a = -1 and  x=b = 4

The average rate of change of the given function

A(x) = \frac{f(b)-f(a)}{b-a}

<u><em>Step(ii):-</em></u>

f(x) = x² - 2x -4

f(-1) = (-1)² - 2(-1) -4 = 1+2-4 = -1

f(4) = 4² -2(4) -4 = 16 -12 = 4

The average rate of change of the given function

A(x) = \frac{f(b)-f(a)}{b-a}

A(x) = \frac{4-(-1)}{4-(-1)} = \frac{5}{5} = 1

<u><em>final answer:-</em></u>

The average rate of change of the given function

A(x) =  1

5 0
3 years ago
Read 2 more answers
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