All categories

2 years ago

A=(-2+4/5)² qual valor de A?

1 answer:

3 0

A=(-2+4/5)² qual valor de A?

 $A=\left(-2+ \dfrac{4}{5}\right)^2 \\ \\ \\ A=\left( \dfrac{-2*5+4}{5}\right)^2 \\ \\ \\ A=\left( \dfrac{-10+4}{5}\right)^2 \\ \\ \\ A=\left( \dfrac{-6}{5}\right)^2 \\ \\ \\ A=\left( \dfrac{(-6)^2}{(5)^2}\right) \\ \\ \\ \boxed{ A= \dfrac{36}{25} } \\ \\ \\$

You might be interested in

Write an example of an equation that’s represents exponential decay

seropon [69]

The equation for exponential decay is given as y = a(1 - r)^x.

Explanation:

The formula for original exponential decay is y = ab^x.

The growth rate (r) is determined as b = 1 + r.

The decay rate (r) is determined as b = 1 - r.

y = ab^x (Where b = 1 - r)

y = a(1-r)^x

a represents the initial value

r represents growth or decay rate

x represents the number of time intervals that have passed.

For example

The population of Home Town is 2016 was estimated to be 35,000 people with an annual rate of increase of 2.4%.

The equation for decay factor y = 35000(1 - 0.024)^x

y = 35000(0.976). (where x = 1)

7 0

3 years ago

0.04 is 1/10 of what number

bulgar [2K]

If you would like to calculate 1/10 of what number is 0.04, you can do this using the following steps:

1/10 of what number is 0.04
1/10 * x = 0.04 /*10
x = 0.04 * 10
x = 0.4

Result: 1/10 of 0.4 is 0.04.

5 0

3 years ago

A restaurant earns $1073 on Friday and $1108 on Saturday. Write and solve an equation to find the amount xx (in dollars) the res

julia-pushkina [17]

Money earned by restaurant on Friday=$1073

Money earned by restaurant on Saturday=$1108

Let Money earned by restaurant on Sunday=$x

Average=$1000

$\text { average}=\frac { sum of all the observation}{total number of observation}$

Number of observation=3

⇒ 3× 1000=1073+1108+x

⇒3000= 2 181+x

⇒3000-2181=x

⇒x=819

The restaurant needs to earn on Sunday to average $1000 per day over the three-day period=$819

6 0

3 years ago

Read 2 more answers

how to solve and write three times a number s plus 4 times a number y is 1 more than 6 times the number s. solve for s

Rasek [7]

3s+4y=1+6s
minus 3s both sides
4y=1+3s
minus 1
4y-1=3s
divide by 3
$\frac{4y-1}{3} =s$

3 0

3 years ago

If 55% people in a city like Cricket, 30% like Football and the remaining like nother games, then what per cent of the people li

labwork [276]

$\large{\dag\:{\underline{\underline{\frak{\pmb{\red{Answer:-}}}}}}}$

Cricket = 55%
Football = 30%
Other games = Remaining (?)

So, the percent of people who like other games equals:

= 100 – (55 + 30)

= 100 – 85

= 15%

If the total no. of. people is 60,00,000:

★ Cricket

= 60,00,000 × 55/100

= 33,00,000

★ Football

= 60,00,000 × 30/100

= 18,00,000

★ Other sports

= 60,00,000 × 15/100

= 9,00,000

6 0

2 years ago