3 years ago

I need help with these 2 questions please help me with scie

Mathematics

1 answer:

Andre45 [30]3 years ago

3 0

He's using the graduated cylinder method. I think the volume might be between 15 and 20. (It's kind of not obvious...)

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the oval track below is formed by a straight section on each side and a semicircle at each end. what is the approximate distance

nikklg [1K]

Answer:

1040

Step-by-step explanation:

Circumference of the Circle: 439.82

Add that to the length of the rectangle time two: 439.82+(300x2)

That will give you the perimeter around the entire track:

439.82+(300x2)

439.82+600

1039.82

Rounded that is: 1040

Hope this Helps :)

4 0

3 years ago

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Kaelyn used 2

n200080 [17]

Answer:

107.5

Step-by-step explanation:

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3 years ago

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What is the value of x? Enter your answer in the box. x =

serious [3.7K]

Answer:

54°

Step-by-step explanation:

2x +2° = 3x - 52° { being vertically opposite angles }

3x - 2x = 52° + 2°

x = 54°

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8 0

3 years ago

100 students are interviewed to see which of biology, chemistry or physics they prefer.

Art [367]

Answer:

43%

Step-by-step explanation:

There are 39 girls. 21 of them like biology. 11 out of 34 who like chemistry are girls.

No. of girls who prefer biology = 21

There are (100-39) boys. 16 of them like physics. (34-11) of them like chemistry.

No. of boys who prefer biology = 100-39-16-34+11

= 22

Percentage of students who prefer biology = $\frac{21+22}{100}$ × 100%

= $\frac{43}{100}$ × 100%

= 43%

6 0

3 years ago

What is the value of the expression

sleet_krkn [62]

Answer:

the value of expression is 1\2

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3 years ago

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