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4 years ago

5

1 1/4 + ( 3 2/3 + 5 3/4)

1 answer:

Dmitrij [34]4 years ago

6 0

Answer:

10.6

10+ 2/3

Step-by-step explanation:

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If (x + 2) is a factor of x3 − 6x2 + kx + 10, k equals

SashulF [63]

Answer:

$\boxed{\sf \ \ \ k=-11 \ \ \ }$

Step-by-step explanation:

for a given k we got

$x^3-6x^2+kx+10$

and we are looking for k so that

$x^3-6x^2+kx+10 = (x+2)(ax^2+bx+c)$

let s estimate

$(x+2)(ax^2+bx+c) = ax^3+bx^2+cx+2ax^2+2bx+2c\\\\= ax^3+(b+2a)x^2+(2b+c)x+2c$

we can identify the terms do

terms in $x^3$

1 = a

terms in $x^2$

-6=b+2a

terms in x

k=2b+c

constant term

10 = 2c

it gives c = 10/2=5 and as a=1 b = -6-2a=-6-2=-8

so k = -2*8+5=-16+5=-11

the answer is k=-11

and then

$x^3-6x^2-11x+10 = (x+2)(x^2-8x+5)$

6 0

3 years ago

What is the answer to 3x² + 5x when x = 3

mafiozo [28]

Answer:

96

The drawings will help

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4 years ago

Which of the following are equivalent to 18a-6b >>6(3a-b),10a-6b+8a,2(9a+3b),3(6a-6b),4(3a-b)+2(3a-b)

Illusion [34]

A.) 6(3a-b)

6•3a = 18a
6•-b = -6b

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4 years ago

What are the possible degrees of the polynomial

Naddika [18.5K]

Answer:

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3 years ago

Spencer can do a piece of work in 20 days and Toby in 25 days. They began to work together.

zlopas [31]

Answer: spencer left after 14 days

Step-by-step explanation:

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2 years ago