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2 years ago

How do i solve this and what is the answer?

Mathematics

1 answer:

Alex73 [517]2 years ago

7 0

Answer:

I totally get why you are asking , how do I solve this. there is so much implied about this

Step-by-step explanation:

1st you have to recognize that ∠ACB ( in my drawing ) has that same angle as the arc from A to B , so that's implied. next you have to recognize that the triangle formed by ACB with the 124 degree angle at C is an isosceles and therefore has identical angles at A and B so that's 180 = 124 + 2A , so A = 28° and so does B , then , b/c we know that small angle... you also have to know, that the line AC is perpendicular to AD. that they from a right angle and there for... you now know , that ∠BAD is the other part of that 90 or 90= 28 + ∠BAD so ∠BAD = 62°

I went through that kinda fast, there was several "leaps" of using logic to get to the correct answer , using things you know from prior understanding about angles , circles and geometry, you are putting all of the parts together here. :/ kinda daunting in some ways.

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Answer:

56.5

Step-by-step explanation:

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What is the y-intercept, axis of symmetry and vertex of the following function.

tamaranim1 [39]

To find the y intercept you must substitute 0 into x.

F(x) = (-3x0) - (6x0) - 5
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To find the axis of symmetry and vertex we use the formula -b/2a to find the x coordinate

x = 6/(-3x2)
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Now we need to find the y coordinate so we sub -1 into x.

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The axis of symmetry and vertex are (-1,4) and the y coordinate is -5. Hope this helps.

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2 years ago

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What transformation maps the preimage (red) onto the image (blue)?

Dominik [7]

Answer:

Rotate counter clockwise about the center point 180 degrees

Step-by-step explanation:

You can use transformations to preserve shape and size but move a shape or change its position. Transformations include:

reflection - a flip across an axis
rotation - a turn around a point
translation - a slide a specific distance and direction

To map the red into the blue, you can rotate it counter clockwise about the center point which the red and blue shapes share 180 degrees. It will land exactly on the red.

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3 years ago

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A football is passed through the air and caught at ground level for a touchdown. The height of the ball (h) is given by h= -d² +

IgorC [24]

Answer:

d = 6+sqrt(42)=12.4807407

Step-by-step explanation:

h= -d² + 12d + 6

The ball is caught at ground level which means h=0

0 = -d² + 12d + 6

Subtract 6 from each side

-6 = -d^2 +12d

Factor out a - sign

-6 =-(d^2-12d)

Divide by -1

6 = d^2 -12 d

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Add 36 to each side

6+36 = d^2 -12d +36

42 = (d-6)^2

Take the square root of each side

±sqrt(42) = sqrt( (d-6)^2)

±sqrt(42) = (d-6)

Add 6 to each side

6±sqrt(42) = (d-6)+6

6±sqrt(42) = d

d = 6+sqrt(42)=12.4807407

d =6- sqrt(42)=-.480740698

Since the distance cannot be negative

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3 years ago

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Answer:

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