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Gnesinka [82]
2 years ago
15

Factor completely 81x2 − 100. (1 point) (10x − 9)(10x − 9) (10x − 9)(10x + 9) (9x − 10)(9x + 10) (9x − 10)(9x − 10)

Mathematics
1 answer:
MArishka [77]2 years ago
5 0

The complete factorization of the equation 81x² - 100 is; (9x - 10)(9x + 10)

<h3>How to factorize quadratic equations?</h3>

We are given the quadratic equation;

81x² - 100

Now, according to quadratic identities, we know that;

(a + b) * (a - b) = a² - b²

Now, our equation can also be expressed as;

81x² - 100 = 9²x² - 10²

Thus, applying the quadratic identity gives us;

(9x + 10)(9x - 10)

Read more about factorization of quadratic equations at; brainly.com/question/1214333

#SPJ1

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Respuesta de (-0.5)²
Vladimir79 [104]

Answer:

0.25

Step-by-step explanation:

we have

(-0.5)^2

we know that

-0.5=-\frac{1}{2}

substitute

(-\frac{1}{2})^2=(-\frac{1}{2})(-\frac{1}{2})

Remember that

(-1)(-1)=1\\(-1)(1)=(-1)

so

(-\frac{1}{2})(-\frac{1}{2})=\frac{1}{4}=0.25

5 0
3 years ago
A catering company’s recipe for salad uses a ratio of 2 c of dressing to 4 lb of vegetables. Draw a model for the ratio. Write t
s2008m [1.1K]
The ratio of dressing to vegetable in its reduced form is determined by dividing the amount of dressing by the amount of vegetables. This will give us the answer of,
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In its simplest form, we divide both the numerator and denominator by 2 and the final answer would be,
                                              1 c / 2 lb
7 0
3 years ago
What is the answer A, B, C, or D
adell [148]

The answer would have to be

D


7 0
3 years ago
Rob buys 6 tickets to the basketball game. He pays$8.50 for parking. His total cost is $40.54. What is the cost of each ticket?
Bezzdna [24]

Answer:

Step-by-step explanation:

26.04

7 0
3 years ago
The value of a professional basketball player's autograph rose 20% in the last year. It is now worth $252.00. What was it worth
kolbaska11 [484]
*REVERSE THE CHANGE QUESTION*

100% + 20% = 120% = $252

252 / 120 = $2.10 = 1%

100% = 2.1 x 100 = $210
8 0
3 years ago
Read 2 more answers
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