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IRISSAK [1]
3 years ago
15

A middle school counselor randomly sampled students about their favorite subjects. Suppose an 8th grade student from the school

is asked about their favorite class. Based on the random sample, what is the probability that the student would select science? (Round to the nearest whole percent.)
A) 20%
B) 31%
C) 53%
D) 65%
Mathematics
1 answer:
NISA [10]3 years ago
7 0

Answer: B

Step-by-step explanation:

68 divided by 204 gives you 0.33 so round to nearest tenth and and go to 0.31 and then convert to percent and you have 31%

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Find the surface area of the pyramid shown to the nearest whole number. The base is a regular hexagon.
Fiesta28 [93]
The surface area of the pyramid will be given as follows:
Area of triangles:
A=1/2×base×height
A=1/2×12×18
A=108 m²
Area of 6 triangles is given by:
A=108×6=648 m²

Area of the hexagon:
A=6×1/2×12×6√3
A=374.123m²

Total surface area:
SA=648+374.123
SA=1022.123 m²~1022 m²

Answer: C] 1022 m²

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3 years ago
What is 1/6 divide by 1/3
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0.555555556 so that's it hope this helped

4 0
4 years ago
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svet-max [94.6K]

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3 years ago
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Someone help me please !!!
KIM [24]

Answer:

1. 10

2. 12

3. Sqrt 130

4. Sqrt 45

Step-by-step explanation:

To find the missing side of a right triangle, use the Pythagorean Theorem. The Pythagorean Theorem is a^2+b^2=c^2 where a and b are the legs with a being the smallest and c is the hypotenuse.

1. a=6, b=8, c=?

6^2+8^2=c^2\\36+64=c^2\\100=c^2\\10=c

2. a=5, b=?, c=13

5^2+b^2=13^2\\25+b^2=169\\169-25=b^2\\144=b^2\\12=b

3. a=7, b=9, c=?

7^2+9^2=c^2\\49+81=c^2\\130=c^2\\\sqrt{130}=c

4. a=2, b=?, c=7

2^2+b^2=7^2\\4+b^2=49\\49-4=b^2\\45=b^2\\\sqrt{45}=b

5 0
3 years ago
Joelle would like to tip her hairdresser 20%. If her haircut was $38.00, which expression should she use to find the tip amount?
Vilka [71]
I pretty sure you would use x over 38.00 = 20 over 100 then cross multiply them
6 0
3 years ago
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