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Yuri [45]
3 years ago
9

What is the answer to this

Mathematics
2 answers:
Maurinko [17]3 years ago
5 0

{x}^{2}  - 9x - 36 = 0 \\ (x - 12)(x + 3) = 0 \\ x - 12 = 0 \\ x = 12 \\ x  + 3 = 0 \\ x =  - 3
Elden [556K]3 years ago
3 0
X^2 - 9x - 36 = 0

Note that one possible set of factors is (x-12)(x+3).  Why?  Because (-12)(3) = -36 and -12x + 3x = -9x.
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If there are 2 girls per 3 boys What is<br> the ratio of girls to Boys
Phantasy [73]

Answer:

2:3

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3 0
3 years ago
A square with an area of 144cm is reduced by a factor of 1/3. How long are the new sides of the square?
denis23 [38]

Answer:

9.797. . .

Step-by-step explanation:

2/3 of 144 is 96

\sqrt{96} = 9.797...

8 0
2 years ago
PLEASE HELP!!! WILL GIVE BRAINLIEST AWARD FOR BEST EXPLAINED! PLEASE HELP
Arada [10]

Answer:

[1]

Given: (5x^3 + 3x^2 - 7x + 10) - (3x^3 - x^2 + 4x - 1)

Remove the parenthesis, we get;

(5x^3 + 3x^2 - 7x + 10) - (3x^3-x^2+ 4x -1)

5x^3 + 3x^2 - 7x + 10- 3x^3 + x^2- 4x + 1

Like terms are the those terms with same variable and powers.

Combine like terms;

2x^3 + 4x^2 - 11x + 11

To write this polynomial in standard form, you write starting with the term with the highest degree, or exponent(i.e x^3), and then in decreasing order .

Standard form: 2x^3 + 4x^2 - 11x + 11

To, classify a polynomial by degree, you just look at the highest exponent, or degree.

Since, 3 is the highest degree (x^3), it is a cubic.

Now, classify a polynomial by the number of terms, count how many terms are in the polynomial( 2x^3 + 4x^2 - 11x + 11)

Number of terms: 4 (so this is polynomial)

[2]

Similarly,

for  (9w - 4w^2 + 10) + (8w^2 + 7 + 5w)

Remove the parenthesis, we get;

9w - 4w^2 + 10+ 8w^2 + 7 + 5w

Combine like terms; we have

14w + 4w^2 + 17

Standard form: 4w^2 + 14w + 17

Degree of the polynomial is, 2

Number of terms: 3 ( so, this is trinomial)



8 0
3 years ago
Read 2 more answers
Which figure shows the correct dimensions of 2/5 scale drawing of the given figure?
kap26 [50]

Answer:

A=40

Step-by-step explanation:

If A=100 and we need 2/5 the scale then all we do is divide 100 by five and multiply it by two giving us 40

8 0
3 years ago
Hannah buys 3 pack of 36 exposure film and 2 packs of 24 exposure film.She uses 8 rolls of film.How many rolls does she have lef
xeze [42]
3 times 36= 108
2 times 24= 48
108+48= 156
156-8=148 rolls
3 0
3 years ago
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