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2 years ago

5(2x + 3)2 when x = 3.

Mathematics

1 answer:

Anni [7]2 years ago

6 0

Answer:

Step-by-step explanation:

5 x 2=10 x 3 = 30

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You lose 4 points each time you

Anna11 [10]

The change is 6 because the pouts you lose depends on how many times you leave the shoes at home

3 0

2 years ago

A new shopping mall records 120 total shoppers on their first day of business. Each day after that, the number of shoppers is 10

Iteru [2.4K]

Answer:

$1,139\ shoppers$

Step-by-step explanation:

we know that

In this problem we have a exponential function of the form

$y=a(b)^{x}$

where

a is the initial value or y-intercept

b is the base of the exponential function

r is the rate in decimal form

b=(1+r)

In this problem we have

x ----> the number of days

y ----> the number of shoppers

a=120

r=10%=10/100=0.10

b=1+0.10=1.10

substitute the values

$y=120(1.10)^{x}$

First day

$y=120$

Second day

For x=1 day

substitute the value of x in the equation and solve for y

$y=120(1.10)^{1}=132$

Third day

For x=2 days

$y=120(1.10)^{2}=145$

Fourth day

For x=3 days

$y=120(1.10)^{3}=160$

Fifth day

For x=4 days

$y=120(1.10)^{4}=176$

Sixth day

For x=5 days

$y=120(1.10)^{5}=193$

Seventh day

For x=6 days

$y=120(1.10)^{6}=213$

Adds the numbers

$120+132+145+160+176+193+213=1,139$

3 0

2 years ago

Read 2 more answers

The exchange rate for converting units of currency X (x) to units of currency Y (y) was y = 1.05x.

Luba_88 [7]

a) For 900 units of currency X, at an exchange rate of y = 1.05x, you could get <u>945 of currency Y.</u>

b) The inverse function is x is <u>0.9524y</u> and it represents the conversion of units of currency Y to units of currency X.

c) For 46 units of currency Y, at the exchange rate of x = 0.9524y, you could get <u>43.81 of currency X</u>.

<h3>What is an exchange rate?</h3>

An exchange rate is a value that a currency has with another.

The exchange rate shows the proportion or ratio at which two currencies are exchanged.

<h3>Data and Calculations:</h3>

The exchange rate of X (x) to Y 9y) is y = 1.05x.

For 900 units of currency X, you could get 945 of currency Y (1.05 x 900)

The inverse function is x = 0.9524y (900/945)y

For 46 units of currency Y, you could get = 43.81 of currency X (0.9524 x 46).

Learn more about exchange rates at brainly.com/question/4711402

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4 0

1 year ago

A moving company charges $400 plus $8 per hour. Another moving company charges $400 plus $10 per hour. How long is the job that

maks197457 [2]

Answer:

Step-by-step explanation:

6 0

2 years ago

A city has a population of 380,000 people. Suppose that each year the population grows by 9%. What will the population be after

olga55 [171]

Answer:

1,068,813

Step-by-step explanation:

Each year, the population is multiplied by 100% + 9% = 1.09. We want to multiply the population by that factor 12 times. An exponent is used to signify (and compute) that repeated multiplication. The population will be ...

380,000 × 1.09^12 ≈ 1,068,812.6 ≈ 1,068,813

4 0

2 years ago