2 years ago

What's 3 and 1 in a half

Mathematics

1 answer:

noname [10]2 years ago

7 0

The answer to the question is 4 1/2

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Find the prime factorization for58 thank you

Vladimir79 [104]

58/2=29
29 is prime
prime factorization is 2 times 29

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2 years ago

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Find all solutions to x³+3x² − 9x − 27 = 0 by factoring the equation.

SCORPION-xisa [38]

Answer:

The solutions are $x=-3,\:x=3$

Step-by-step explanation:

To factor this cubic polynomial $x^3+3x^2-9x-27$ you must:

Group the polynomial into two sections

$x^3+3x^2-9x-27=\left(x^3+3x^2\right)+\left(-9x-27\right)$

Factor out -9 from $(-9x-27)$

$(-9x-27)=-9\left(x+3\right)$

Factor out $x^2$ from $(x^3+3x^2)$

$(x^3+3x^2)=x^2\left(x+3\right)$

$x^3+3x^2-9x-27=-9\left(x+3\right)+x^2\left(x+3\right)$

Factor out common term $x+3$

$-9\left(x+3\right)+x^2\left(x+3\right)=\left(x+3\right)\left(x^2-9\right)$

$x^3+3x^2-9x-27=\left(x+3\right)\left(x^2-9\right)$

Factor $x^2-9$

$x^2-9=\left(x+3\right)\left(x-3\right)$

$x^3+3x^2-9x-27= \left(x+3\right)\left(x+3\right)\left(x-3\right)$

$x^3+3x^2-9x-27=\left(x+3\right)^2\left(x-3\right)=0$

Using the Zero Factor Theorem: = 0 if and only if = 0 or = 0

$x+3=0, \quad{x=-3}\\x-3=0, \quad{x=3}$

The solutions are

$x=-3,\:x=3$

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2 years ago

Please help me now help me nowww please

topjm [15]

Answer:

A. 1
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C. 2
D. 5
E. 4
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2 years ago

Mal is putting money into a savings account. She starts with $350 in the savings account, and each week she adds $30.

Bogdan [553]

S=350+(30*w)
so
350+(30*19)=920

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2 years ago

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Which is the best estimate for this expression ?<br>a) 300 <br>b) 40<br>c) 3<br>d)0.4

Zolol [24]

Answer:

Step-by-step explanation:

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2 years ago