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3 years ago

X -1 3 5 y 7 3 1 find the average rate of change from x=-1 to x=5

Mathematics

1 answer:

zloy xaker [14]3 years ago

7 0

X -1 3 5
y 7 3 1 

avgroc = ( 1 -7) / (5 - -1) = -6/6 = -1

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Select the correct answer.

iris [78.8K]

The future value of $1,000 invested at 8% compounded semiannually for five years is $\bold{\$ 1,480}$

Solution:

$\bold{A = P (1 + i )^{n}}$ ----------- equation 1

A = future value

P= principal amount

i = interest rate

n = number of times money is compounded

P = 1000

i = 8 %

$\mathrm{n} = \text { compounding period } \times \text {number of years}$

(Compounding period for semi annually = 2)

$\mathrm{n} = \text { compounding period } \times \text {number of years}$

Dividing “i” by compounding period

$i = \frac{8 \%}{2} = 0.04$

Solving for future value using equation 1

$\begin{array}{l}{A = 1000(1 + 0.04)^{10}} \\\\ {=1000 (1.04)^{10}}\end{array}$

$= 1480.2$

$\approx 1,480 \$$

3 0

2 years ago

a shopkeeper bought two watches for rs 400.he sold them to gain 5% profit on one and another at 5% loss on other.calculate his f

jekas [21]

Answer:

0.25 % loss.

Step-by-step explanation:

Let the cost of 1 watch be rs x then the cost of the other is rs 400 - x.

Let the sp be rs y.

So we have:

y = x + 0.05x

y = (400 - x) - 0.05(400 - x)

y = 400 - x - 20 + 0.05x

y = 380 - 0.95x

So x + 0.05x = 380 - 0.95x

2x = 380

x = 190.

and y = 190 + 0.05*190 = 199.5.

So the total selling price = 2 * 199.5 = rs 399

So final loss is [ (400-399)/ 400] * 100

= 0.25 %.

8 0

2 years ago

:. Solve for w. P = 2(1 + w)

iragen [17]

answer : 1 = P/2 - 2

6 0

1 year ago

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Renee deposits $4,000 in a savings account that earns 2% simple interest per year. how much interest will she earn after 1 year?

Vera_Pavlovna [14]

I believe it's 80 dollars.

7 0

3 years ago

What is the difference (2 x - 3) - (x - 1)? x minus 4 x minus 2 x + 2 x + 4

kupik [55]

Answer:

x - 2

Step-by-step explanation:

2x - x = x

-3 - -1 = -2

5 0

2 years ago

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