First lets figure out what -5+5 equals. so -5+5=0. so then -4-0 equals -4. so therefor your answer is -4
Answer:
39/40
Step-by-step explanation:
Since 39 out of 40 marbles are green, the probability of randomly choosing green is 39/40.
However, the probability becomes 100% when you look into the bag and choose a green marble. (Unless you are blind or unable to distinguish blue from green, in which case the probability remains 39/40.)
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<u>Find Radius:</u>
Radius = Diameter ÷ 2
Radius = 4 ÷ 2 = <u>2 in</u>
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<u>Find Surface Area:</u>
Surface Area = 2πr² + 2πrh
Surface Area = 2π(2)² + 2π(2)(3)
Surface Area = 8π + 12π
Surface Area = 2<u>0π in²</u>
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Answer: 20π in²
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C. 3/7 because it would be 1 twenty, 1 ten, 1 five and 4 ones
