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3 years ago

Angle F has what measurement according to the protractor?

Mathematics

2 answers:

Ahat [919]3 years ago

8 0

Answer: The correction option is B, i.e., $140^{\circ}$ .

Explanation:

To find the angle F using protector first we have to study about the protractor.

In a protractor the angles are written in two scales. The angles of outer scale is increased in clockwise direction and the the angles of inner scale are increasing in anticlockwise direction.

The reason behind it is the property of supplementary angles. The sum of angles lie on straight line is always 180 degree.

When we have to find the angle we see the inner angles or inner semi circle or the angle in anticlockwise direction.

From the given figure it is noticed that the angles F lies on $40^{\circ}$ and $140^{\circ}$ .

The angle in anticlockwise direction is $140^{\circ}$ , therefore, the correct option is B.

NemiM [27]3 years ago

4 0

The answer is A. 140

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3 years ago

What equation do I need to use?

goldenfox [79]

To ease your problem, consider "L" as you x-axis
Then the coordinate become:
A(- 4 , 3) and B(1 , 2) [you notice that just the y's changed]

This is a reflection problem.
Reflect point B across the river line "L" to get B', symmetric of B about L.
The coordinates of B'(1 , -1) [remember L is our new x-axis]
JOIN A to B' . AB' intersect L, say in H
We have to find the shortest way such that AH + HB = shortest.
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4 years ago

Given f (x)=-3x+4 what is f (-4)<br> a.-40<br> b.-22<br> c.-1<br> d.40

FinnZ [79.3K]

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3 years ago