The preimeter of a rectangle is equal to 2 times the length plus twice the width
2 answers:
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Answer:
The required equation in standard form is
Step-by-step explanation:
The equation of a circle with center (h,k) an radius, r units is given by the formula;
The given circle has center (-2,0) and radius squared can be calculated from the given area, which is
We substitute these values into the formula to obtain;
We simplify to get;
Answer:
Step-by-step explanation:
In these two lines that intersect, we can see that 4 angles are opposite from each other. This means that they are vertical angles and therefore equal. 2 of these angles have values next to them, which happen to be across from each other.
Based on this, we know that they are equal. If we write this as an equation, we can solve it to find the value of x.
75º = (4x - 25)º
Add 25º to both sides of the equation
100º = 4x
Divide both sides of the equation by 4 to isolate x
x = 25
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