Answer:
216°
Step-by-step explanation:
Both chords are the same length, so the left and right arcs are both 72°. The whole circle is 360°, so:
72° + 72° + x = 360°
x = 216°
I believe it is 1250
Explanation: Area of a triangle=1/2bh-1/2•20•30
Area of square=bh-25•25
Add your answers together then you get 1250
The probability that a Cd drive will fail is 1.6 %.
<h3>What is probability?</h3>
Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.
Given,
Cd tested = 250 read operations
Cd fails = 4 times
probability =
here we have,
Probability = 4/250
= 0.016
= 0.016 × 100
= 1.6 %
To learn more about probability from the given link
brainly.com/question/9953973
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<span>number b because
by multiplying
(2x+3)(x+1) = 2x^2 +2x+3x +3 = </span><span>2x^2 +5x +3</span>