Answer:
65°
Step-by-step explanation:
Radii CA and CB are perpendicular to tangent lines AT and BT, so
Since angle BAT is equal to 65°, angle CAB has measure
Consider triangle ACB. This triangle is isosceles, because CA=CB as radii of the circle. Two angles adjacent to the base are congruent, thus
The sum of the measures of all interior angles in triangle is always 180°, so
Angle ACB is central angle subtended on the minor arc AB, angle APB is inscribed angle subtended on the same minor arc AB. The measure of inscribed angle is half the measure of central angle subtended on the same arc, so
Answer:
Step-by-step explanation:
Given
Stage 20 has 
circles
Considering at each consecutive stage circle doubles itself
So at stage 21, there will be 
circles
Answer:
B, because thats dividing, which equals 3. for the answer A, did you mean 15*5?
Step-by-step explanation:
Answer:
Step-by-step explanation:
5³ × 25
25 can be written as a base of 5.
5³ × 5²
We need expressions with fewest number of bases possible.
Apply exponent rule : 
Add exponents.
The function is <span>b(x)= |x+4|,
which means that b(-10)=|-10+4|, since we can replace both x-es above with any number. (This is what the rule means.)
Further, |-10+4|=|-6|. We know that the absolute value gives us always positive values, so |-6|=6.
Thus, the answer is 6.
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