2 years ago

How do you do this because I don’t understand

Mathematics

2 answers:

Leona [35]2 years ago

7 0

Okay so basically it's like 4 to the power of 5 and like that and the • means multiply

harkovskaia [24]2 years ago

3 0

Subtract exponents when dividing :

4*5*6 is your final answer.

ie exp 5-4 = 1, put on 4, etc...

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We have 25% off coupon for a Christmas tree already marked down to 10% if the original price of the tree is 189 how much will sh

Vladimir [108]

Answer:

She will pay $122.85

Step-by-step explanation:

First, find the amount of the percents.

To do that, turn the percents into decimals.

25% --> 0.25

10% --> 0.10

Then, multiply each decimal with the original price.

189×0.25= 47.25

189×0.10= 18.90

Now that you have the amount of the percents, subtract both from the original price.

189- (47.25+18.90)

189-66.15= 122.85

5 0

2 years ago

Reka Maharis drove her vehicle to and from work last year. Her records show a total of $1,560 for fixed costs and $3,740 for var

amid [387]

Answer: 5,300

Step-by-step explanation:

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2 years ago

Read the problem to choose the correct method, then solve. A farmer buys a tractor for $50,000. If the tractor depreciates 10% p

OlgaM077 [116]

Answer:

The correct option is, Exponential Decay, $23,914.85.

Step-by-step explanation:

A farmer buys a tractor for $50,000.

It is provided that the the tractor depreciates 10% per year.

The exponential function for decay is:

$y=a\cdot (1-r\%)^{t}$

Here,

a = initial value

r = decay rate

t = time

Compute the value of the tractor in 7 years as follows:

$y=a\cdot (1-r\%)^{t}$

$=50000\times (1-0.10)^{7}\\\\=50000\times 0.4782969\\\\=23914.845\\\\\approx 23914.85$

Thus, the correct option is, Exponential Decay, $23,914.85.

5 0

2 years ago

A square has a perimeter of 100 square meters. What is the perimeter of the square

inna [77]

You mean a square has an AREA of 100 square meters?
The length of 1 side equals square root of 100 = 10 meters.
Therefore perimeter = 4 * 10 = 40 meters.

3 0

2 years ago

Read 2 more answers

Anna makes 120 dolls each month to sell. This month, she increases the number of dolls she makes by 30%. How many dolls does Ann

scoray [572]

120 * .30 (30%) = 36
120+36 = 156

4 0

3 years ago