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liubo4ka [24]
1 year ago
11

This parabola opens to the left. P. O A. True O B. False

Mathematics
1 answer:
sesenic [268]1 year ago
4 0

Answer:

True.

Explanation:

We take the analogy from the graph of y = ax^2

When y = x^2, the parabola opens upward (towards the positive y-axis). However, when the parabola is y = -x^2, it opens downward (towards the negative y-axis).

In a similar way, when we have x = ay^2, the parabola opens towards the positive x-axis ( towards the right). However, if we have x = -ay^2, then the parabola opens towards the negative x-axis ( towards the left).

Therefore, by comparison, x = - 1/8 y^2, opens to the left, and the correct option to choose is 'True'.

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The radius of a circle is 11 ft. Find the circumference of the circle.
lapo4ka [179]

Answer:

69.12 ft

Step-by-step explanation:

The formula for circumference of a circle is 2πr

= 2 × 3.142× 11

= 69.12

Hence the circumference of the circle is 69.12 ft

8 0
3 years ago
WILL GIVE BRAINLIEST1!! | Help pls cries (pls tell me how u got the answer too)
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2 angles opposite from each other are vertical angles.

Vertical angles are equal to each other.

Since Y is opposite the given angle of 163 degrees, Y = 163.


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Hey here is my question. So if you have 20 legos and your sister has 10 legos how many more legos do you have than her? fr.ee po
just olya [345]

Answer:

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Step-by-step explanation:

because 20-10 is 10

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What is the domain of the relation below?
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Answer:

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A building is 2 ft from a 7 - ft fence that surrounds the property . A worker wants to wash a window in the building 11 ft from
White raven [17]

<u>Answer:</u>

The height of the ladder is 14.491 feet

<u>Explanation</u>:

Given the height is 11 feet

Base = 7 + 2 = 9 feet

Consider the ladder to be the hypotenuse

Applying Pythagoras Theorem,  

H^2   = P^2 + B^2

Substituting the values in the above formula,

H^2  = 112 + 92

H^2  = 121 + 81

H^2 = 210

H = sqrt(210)

H = 14.491

Therefore, the height of the ladder is 14.491 feet

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3 years ago
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