3 years ago

Two years ago the Delhi metro track's length was 200km long. The new track length increased by 20%.

Mathematics

1 answer:

DanielleElmas [232]3 years ago

4 0

I think it is 40% I soo sure

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Find last year's salary if, after a 5% pay raise, this year's salary is $36,225.

Nataly [62]

Answer:

$34500

Step-by-step explanation:

In order to reverse a 5% pay raise, divide by 1.05.

$36225/1.05=34500$

6 0

4 years ago

a shirt was bought for ￦ 528 after getting a discount of 12 % on its market price find the market price of the shirt

BlackZzzverrR [31]

$528 - (528 \times .12) = answer$

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4 years ago

Solve 0 = -1.8y + 0.72. What is y = to?<br> 1.0.4<br> 2.-0.4<br> 3.0.8<br> 4.1.8

PIT_PIT [208]

Answer:

0.4

Step-by-step explanation:

just solve it like an equation.

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3 years ago

Read 2 more answers

Complete the following exercises by applying polynomial identities to complex numbers.

erik [133]

1.)

=(x-8i)(x+8i)

x^2+8ix-8ix-64i^2

x^2-64i^2

x^2-64(-1)

x^2+64

2.)

=(4x-7i)(4x+7i)

16x^2+28ix-28ix-49i^2

16x^2-49i^2

16x^2-49(-1)

16x^2+49

3.)

=(x+9i)(x+9i)

x^2+9ix+9ix+81i^2

x^2+18ix+81(-1)

x^2+18ix-81

4.)

=(x-2i)(x-2i)

x^2-2ix-2ix+4i^2

x^2-4ix+4(-1)

x^2-4ix-4

5.)

=[x+(3+5i)]^2

(x+5i+3)^2

(x+5i+3)(x+5i+3)

x^2+5ix+3x+5ix+25i^2+15i+3x+15i+9

x^2+6x+10ix+30i+25i^2+9

x^2+6x+10ix+30i+25(-1)+9

x^2+6x+10ix+30i-25+9

x^2+6x+10ix+30i-16

Hope this helps :)

6 0

3 years ago

Use rounding or compatible numbers to estimate the difference 192-78

pogonyaev

The answer would be 110

5 0

3 years ago