3 years ago

Two and a half hours later than 3:30 is What is it??

Mathematics

2 answers:

Tresset [83]3 years ago

4 0

Answer:

1 o'clock

Step-by-step explanation:

plz brainliest!

dedylja [7]3 years ago

3 0

Answer:

6:00

Step-by-step explanation:

3:30+2:30=6:00

If that's what u mean

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If two-thirds of Sam's weekly income is $480, what is one-fourth of his weekly income?

Butoxors [25]

Answer:

180$

Step-by-step explanation:

If two-thirds of Sam's weekly income is $480

so total is $720

720$/4= 180$

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David and Amanda are trying to figure out how long they can live off their $12,350 savings if they spend $240 each month. They h

Romashka [77]

David's : y = 12,350 - (240x)
Amanda's : y = 12,350 + (240x)

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Given the polynomial 2x3 + 18x2 − 18x − 162, what is the value of the coefficient 'k' in the factored form?2x3 + 18x2 − 18x − 16

s344n2d4d5 [400]

Answer:

$k=3$

Step-by-step explanation:

Let

$f(x)=2x^3+18x^2-18x-162$

We factor 2 to obtain;

$f(x)=2(x^3+9x^2-9x-81)$

We factor the polynomial within the parenthesis by grouping.

$f(x)=2(x^2(x+9)-9(x+9)$

$f(x)=2(x^2-9)(x+9)$

$f(x)=2(x^2-3^2)(x+9)$

We apply difference of two squares on the second factor: $x^2-3^2=(x-3)(x+3)$

$f(x)=2(x+3)(x-3)(x+9)$

We now compare to;

$f(x)=2(x+k)(x-k)(x+9)$

It is now obvious that $k=3$

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3 years ago