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Dovator [93]
3 years ago
12

There are 21 plates of tomato sandwiches, 27 plates of cheese sandwiches, and 12 plates of beef sandwiches on a buffet table. If

a guest randomly picks a single plate, what is the probability that he gets tomato or cheese sandwiches? A) 0.10 B) 0.25 C) 0.48 D) 0.80
Mathematics
2 answers:
Mrrafil [7]3 years ago
6 0
It is D: 48/60 = 0.80
Lera25 [3.4K]3 years ago
4 0
Answer is D because i add 21 and 27 and got 48 then divied by the total number sandwiches and got .80
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The base of a 13 foot ladder is 5 feet away from the wall. How far up the wall does the ladder reach? A)8 feet B)10 feet C)12 fe
Lisa [10]

You are solving for the height. Use the formula:

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(13)² - (5)² = a²

Simplify

169 - 25 = a²

144 = a²

Isolate the a. Root both sides

√144 = √a²

a = √144

a = √(12 x 12)

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C) 12 feet is your answer

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3 years ago
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Answer:

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3 years ago
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ivolga24 [154]

Answer:

A

Step-by-step explanation:

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It's not an experiment because there is no experimentation involved. :)

It's not double-blind because in that case the researcher would have to apply something to two kinds of groups. one aware one the other not. not the case.

It's not D because  The observations are comparing two kinds of subjects and they are not looking for a cause and effect.

8 0
3 years ago
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Answer:

The correct answer is B) 8

Step-by-step explanation:

\sqrt{(4-4)^{2}+(5+3)^{2}   } \\\\\\\sqrt{8^{2} } \\\\8

8 0
3 years ago
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Answer:

About 11.62 by 11.62

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So the perimeter would be about 46. But 46.48 exactly.

3 0
3 years ago
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