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saul85 [17]
3 years ago
10

Weights

Mathematics
1 answer:
nadya68 [22]3 years ago
8 0

Answer:

1. Student #2, 81%

2. Student #2, 85%

Step-by-step explanation:

1. Student #1:

(86 + 59 + 85 + 87 + 69) ÷ 5

= 386 ÷ 5

= 77.2

This student scored an average of 77.2%.

Student #2:

(81 + 96 + 79 + 64 + 85) ÷ 5

= 405 ÷ 5

= 81

This student scored an average of 81%.

Therefore, Student #2 has the better average.

2. Student #1:

(75 + 96 + 63) ÷ 3

= 234 ÷ 3

= 78

This student scored an average of 78%.

Student #2:

(83 + 72 + 100) ÷ 3

= 255 ÷ 3

= 85

This student scored an average of 85%.

Therefore, Student #2 has the better average.

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Vladimir79 [104]
20 / 1000 = 0.02
0.02 x 100 = 2
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3 years ago
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Point A is located at (-4,\ 9)(−4, 9) on the coordinate plane. Point B is located at (-4,\ -7)(−4, −7). ​What is the distance be
galben [10]

Answer:

AB = 16 units

Step-by-step explanation:

Given the coordinate (-4, 9) and (-4, -7)

Using the formula for calculating the distance between two points

AB = √(x2-x1)²+(y2-y1)²

AB =√(-7-9)²+(-4+4)²

AB = √(-16)²+0²

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Hence the distance between Point A and Point B is 16 units

8 0
3 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
shusha [124]

Answer:

24

Step-by-step explanation:

You need to plug in 3 for all of the x-values

That looks like 2(3)^2 + 5(3) - 9

Then if you simplify it is 2(9) + 15 - 9

Then simplify one last time and you get a final answer of 24

6 0
3 years ago
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I'm confused<br>What is the answer?​
forsale [732]

If <em>c</em> > 0, then <em>f(x</em> - <em>c)</em> is a shift of <em>f(x)</em> by <em>c</em> units to the right, and <em>f(x</em> + <em>c)</em> is a shift by <em>c</em> units to the left.

If <em>d</em> > 0, then <em>f(x)</em> - <em>d</em> is a shift by <em>d</em> units downward, and <em>f(x)</em> + <em>d</em> is a shift by <em>d</em> units upward.

Let <em>g(x)</em> = <em>x</em>. Then <em>f(x)</em> = <em>g(x</em> + <em>a)</em> - <em>b</em> = (<em>x</em> + <em>a</em>) - <em>b</em>. So to get <em>g(x)</em>, we translate <em>f(x)</em> to the left by <em>a</em> units, and down by <em>b</em> units.

Note that we can also interpret the translation as

• a shift upward of <em>a</em> - <em>b</em> units, since

(<em>x</em> + <em>a</em>) - <em>b</em> = <em>x</em> + (<em>a</em> - <em>b</em>)

• a shift <em>b</em> units to the right and <em>a</em> units upward, since

(<em>x</em> + <em>a</em>) - <em>b</em> = <em>x</em> + (<em>a</em> - <em>b</em>) = <em>x</em> + (- <em>b</em> + <em>a</em>) = (<em>x</em> - <em>b</em>) + <em>a</em>.

6 0
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Answer:

→ 12..........

I hope this will help you....

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