-√5^2 = ???? Please hurry

Mathematics

1 answer:

IRISSAK [1]4 years ago

8 0

-5 because you apply the rule:

n√a^n= n

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Can someone please explain to me how to do this.

JulijaS [17]

Y = x² - 4x + 4
y = 2x - 4

Find intersection of L and C:
x² - 4x + 4 = 2x - 4
x² - 6x + 8 = 0
 (x - 2)(x - 4) = 0
x = 2 or x = 4

When x = 2 , y = 2(2) - 4 = 0
When x = 4, y = 2(4) - 4 = 4

Points of intersection = A(2, 0) and B(4, 4)

Find the length of AB:

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\text {Length of AB}= \sqrt{(4-0)^2 + (4-2)^2} = \sqrt{16 + 4} = \sqrt{20} = 4.47 \text{ units}$

Answer: 4.47 units

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A 12 oz bottle of shampoo last 16 weeks. How long would you expect an 18 oz bottle to last

jenyasd209 [6]

If a 12 oz bottle of shampoo lasted for 16 weeks, we have a ratio of 12:16 which can be shortened to 3:4.

Now if we have 18 oz bottle we know that it's 1/2 more than 12 oz bottle, so the ratio will be also 1/2 more. So if it was 12:16, the new ratio will be:

12 + (1/2 * 12) : 16 + (1/2 * 16)
12 + 6 : 16 + 8
18 : 24

It means that 18 oz bottle should last for 24 weeks. Of course the ratio has to stay the same in its lowest form in both situations and as 18:24 can be shortened to 3:4, it proves it's correct :)

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3 years ago

Whoever answers first gets the brainliest Given : f(x)=-|x+9|

Mamont248 [21]

Answer:

See below.

Step-by-step explanation:

f(x) = -|x + 9|

compared to

f(x) = |x|

has a graph that opens downward in an upside down V shape.

It has been moved 9 units left compared to the graph of f(x) = |x|.

It reflects over the x-axis.

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Vinvika [58]

-0.2 is not a possible value of x because lengths cannot be negative.

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3 years ago

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Evaluate the expression when a= 2. a? +27

Troyanec [42]

Since a equals 2, 2 plus 27 is equal to 29. So your answer is 29. Hope that helped:)

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4 years ago