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3 years ago

The number $75$ is decreased by $40\%$, then the result is again decreased by $40\%$. What is the final result?

1 answer:

7 0

To get 75 decreased by 40% you subtract 40% from 100%.
100 - 40 = 60

So to get 60% of 75 you multiply .60 by 75.
.60 x 75 = 45

You have $45 now, but you have to decrease it by 40% again. You do the same process, so we need to multiply .60 by 45.
.60 x 45 = 27

So, the final result is $27.

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1) ab (c² + 1) - C (a² + b²)

Ganezh [65]

Answer:

(a+bc)(ac+b)

Step-by-step explanation:

Step 1:

abc²+ab+a²c+b²c

Step 2:

ab+a²c+abc²+b²c

Step 3:

a(ac+b)+bc(ac+b)

Step 4:

(a+bc)(ac+b)

So your final answer is:

(a+bc)(ac+b)

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2 years ago

Read 2 more answers

Which point is an intercept of the quadratic function

Oxana [17]

Answer:

x=15

Step-by-step explanation:

you get everything out of the parentheses then u subtract or add the two constants together which will give u 15

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2 years ago

Plz.Help!me to solve first ano. and bno.

OverLord2011 [107]

Answer:

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2 years ago

In a computer instant messaging survey, respondents were asked to choose the most fun way to flirt, and it found that P(D) =0

ikadub [295]

Answer:

P(Dᶜ )=0.41

Step-by-step explanation:

In the survey, the event D is the event of people who prefer to flirt directly in person.

Given that P(D)=0.590.

If someone is selected randomly, the probability that the individual prefers to flirt directly in person is 0.590.

If the person does not like to flirt in person, the probability of it will be the complement of event D.

From Probability Theory,

P(D)+P(Dᶜ )=1

0.590+P(Dᶜ )=1

P(Dᶜ )=1-0.590=0.41

The probability that the selected person does not like to flirt in person is 0.41.

5 0

2 years ago

For any number n>1 is |(3/4+2/3i)^n|

sasho [114]

The for any number n>1 is |(3/4+2/3i)^n| greater than 1 after simplifying the complex number.

<h3>What is a complex number?</h3>

It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.

We have a complex number:

$= \rm |(\dfrac{2}{3}+\dfrac{3}{4}i)^n|\\\\\\= \rm |(\dfrac{8+9i}{12})^n|\\\\\\= \rm |\dfrac{(8+9i)^n}{12^n}|\\\\$

Here n>1

Plug n = 2

$= \rm |\dfrac{(8+9i)^2}{12^2}|\\\\$

= 145/144

= 1.0069

Which is greater than 1.

Thus, the for any number n>1 is |(3/4+2/3i)^n| greater than 1 after simplifying the complex number.

Learn more about the complex number here:

brainly.com/question/10251853

#SPJ1

6 0

2 years ago