Which ordered pair describes a point with a location in the first quadrant of a coordinate plane?

I need this TONIGHT!!! Three years ago, Jolene bought $750 worth of stock in a software company. Since then the value of her pur

Paul [167]

Answer:

$A\approx\$880.68$

Step-by-step explanation:

So, we know that Jolene bought an initial $750.

We also know that the purchase is increasing at an average rate of 5 1/2 %or 5.5%. In other words, this is being compounded.

So, we can use the compound interest formula, which is:

$A=P(1+\frac{r}{n})^{nt}$

Where A is the total amount, P is the principal value, r is the rate and n is the number of times compounded per year, and t is the amount of years.

So, substitute 750 for P. 5 1/2% is the same as 5.5% or 0.055 (you move the decimal two places to the left and remove the percent symbol) so substitute this for r. Since it's increasing yearly, n is 1. So, our formula is:

$A=750(1+0.055)^t$

Add:

$A=750(1.055)^t$

Since the stock was bought 3 years ago, the value now is t=3. So, substitute 3 for t and evaluate:

$A=750(1.055)^3$

Evaluate. Use a calculator:

$A\approx\$880.68$

And we're done!

7 0

4 years ago

Read 2 more answers

Megamart collects a sales tax equal to 1/16 of the retail price of each purchase. is the amount proportional to the cost of an i

Debora [2.8K]

So examle

if reatil is 16, then tax is 1,
if reatil is 32, then tax is 2

proprtional is if
a/b=c/d
16/1=32/2
16=16
true

it is proportional

4 0

3 years ago

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What is the value of x in the equation: 0.7x - 1.4 = -3.5? A. -7 B. -3 C. 3 D. 7

SashulF [63]

Answer:

B). -3

add the -1.4 to-3.5 then divide the solution

6 0

3 years ago

Read 2 more answers

Can anyone help me with these two plz

Evgen [1.6K]

Answer:

Part 1) The scale factor is $1.5$

Part 2) The altitude QS is $4\ units$

Part 3) The scale factor is $\frac{2}{3}$

Part 4) The value of x is $12\ units$

Part 5) The perimeter of ABCDE is $46\ units$

Step-by-step explanation:

Part 1) Find the scale factor of triangle TQR to triangle NQP

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

Let

z-----> the scale factor

$z=\frac{NP}{RT}$

substitute the values

$z=\frac{24}{16}=1.5$

Part 2) Find the length of the altitude QS

we know that

To find the altitude QS, divide the altitude of triangle NQP by the scale factor

so

$QS=\frac{6}{1.5}=4\ units$

Part 3) Find the scale factor of FGHJK to ABCDE

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

Let

z-----> the scale factor

$z=\frac{AB}{FG}$

substitute the values

$z=\frac{10}{15}=\frac{2}{3}$

Part 4) Find the value of x

we know that

The value of x is equal to multiply the length side FK by the scale factor

so

$AE=FK(z)$

substitute the values

$AE=18(2/3)=12\ units$

Part 5) Find the perimeter of ABCDE

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

Let

z-----> the scale factor

x-----> the perimeter of ABCDE

y-----> the perimeter of FGHJK

$z=\frac{x}{y}$

we have

$z=\frac{2}{3}$

$y=15+9+12+15+18=69\ units$

substitute the values

$z=\frac{x}{y}$

$x=(z)(y)=\frac{2}{3}(69)=46\ units$

6 0

4 years ago

Can someone help me with this?

AfilCa [17]

The box does not let me write in it....

3 0

3 years ago