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3 years ago

10

URGENT! When we solve (cos²x - 1 = 0) by adding and taking the square root, how come we get the same answer when we factor (cos²

x - 1) and use the zero product property to find the solution?

1 answer:

boyakko [2]3 years ago

4 0

Answer:

56

Step-by-step explanation:

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I need help on this question

77julia77 [94]

Answer:

The answer is B

Step-by-step explanation:

They both equal one 180 so add like terms and solve

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2 years ago

You’re five neighboring restaurants charge $9.95, $12.95, 8.50, 8.95, and $10.54 hamburger special. What is the mean price

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2 years ago

In simplest radical form, what are the solutions to the quadratic equation 6 = x2 - 10x?

WARRIOR [948]

Answer:

x = $5 - \sqrt{31}$ , $5 + \sqrt{31}$

Step-by-step explanation:

6 = x^2 - 10x

0 = x^2 - 10x - 6

Let's use the quadratic formula. ( $x = \frac{-b +- \sqrt{b^2 - 4ac}}{2a}$ )

$x = \frac{10 +- \sqrt{-10^2 - 4(-6)}}{2}$

x = $\frac{10 +- 2\sqrt{31} }{2}$

= 5 +- $\sqrt{31}$

x = $5 - \sqrt{31}$ , $5 + \sqrt{31}$

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3 years ago

An older person is 8 years older than seven times the age of a younger person. The sum of their ages is 32. What are their ages?

tatiyna

Answer:

there ages are 29 and 3 years old

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2 years ago

Students plant 148 flowers at a community park. Seventy-eight percent of the flowers are pansies. Use

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