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4 years ago

How would you put that in interval notation?

Mathematics

1 answer:

svet-max [94.6K]4 years ago

8 0

If that is all it gives for the answer, then it is saying that x can be all numbers less than 3 except -2. So for interval notation it will be (-∞,-2),(-2,3). You also use the parenthesis instead of brackets because the number is not included in the answer.

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I need help with this<br>

zzz [600]

Answer:

Yes because 5^2 + 12^2 = 13^2

Step-by-step explanation:

We can check using the Pythagorean theorem

a^2 + b^2 = c^2

5^2 + 12^2 = 13^2

25+ 144= 169

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3 years ago

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A certain shampoo is available in two sizes. A 12.6-ounce bottle costs $2.37. A 25.3-ounce bottle costs $5.24.

neonofarm [45]

Answer:

The 12.6 oz bottle

Step-by-step explanation:

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3 years ago

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Answer:

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4 years ago

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The height, h, in feet of a ball above the ground is given by h = −16t2 + 64t + 80, where t is the time in seconds. How long doe

Gwar [14]

Answer:

t = 5 seconds

Step-by-step explanation:

It is given that, the height h, in feet of a ball above the ground is given by :

$h=-16t^2+64t+80$

Where t is in seconds

We need to find how long does it take the ball to hit the ground? When it hits the ground, its height will be equal to 0. So,

$-16t^2+64t+80=0\\\\t=\dfrac{-64\pm \sqrt{(64)^2-4\times (-16)(80)} }{2\times -16}\\\\t=\dfrac{-64+ \sqrt{(64)^2-4\times (-16)(80)} }{2\times -16},\dfrac{-64-\sqrt{(64)^2-4\times (-16)(80)} }{2\times -16}\\\\t=-1\ s\ \text{and}\ t=5\ s$

Neglecting negative time.

It means ball will take 5 seconds to hit the ground.

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3 years ago

If x2 = 4, what are the possible numbers for x?

vichka [17]

Answer:

Step-by-step explanation:

x=2 so 2×2=4

(mark me as brainlest)

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3 years ago