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Vika [28.1K]
3 years ago
10

Plz help this is a true or false correct answer only question also giving the points it's worth

Mathematics
2 answers:
N76 [4]3 years ago
6 0
The first one is false the second one is true
Bond [772]3 years ago
4 0

Answer:

1.False

the intervals used to create the histogram is 5.5

2.True

more than 10 hours were used by the students in playing the games

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Write the equation in exponential form log2 128=7
zubka84 [21]
The answer is <span>2^7 = 128<span>

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Please help me i will give u brainliest
vivado [14]

Answer:

A ≈ 9.0 ft²

Step-by-step explanation:

70° = 7π/18 radians

Area of the arc section

A = ½(7π/18)8² = 12⁴/₉π ft² = 39.09537 ft²

As the triangle is isosceles, the other two angles are (180 - 70) / 2 = 55°

law of sines 8 / sin55 = L / sin 70  L = 9.17722

so the triangle height  = √(8² - (9.17722/2)²) = 6.55321

Area of triangle ½(6.55321)(9.17722) = 30.07016

Area = 39.09537 - 30.07016 = 9.025211 ≈ 9.0 ft²

7 0
3 years ago
A flute instructor examined student progress.he found that playing a longer song does not necessarily mean that a student will h
Sunny_sXe [5.5K]

Answer:

The flute instructor can conclude that the length of the song does not have a direct variation or correlation with the number of incorrect notes.

Step-by-step explanation:

Direct variation and correlation means that as the "x" variable increases, the "y" variable will change according to it.

If the flute instructor took numerical data, for example, made a chart, and graphed it, then he would not find a trend.

It would probably look like this (see first photo). The plotted points are all over the place. ("x" is the song length, "y" is the number of incorrect notes).

If there was a correlation, then the data would look more like a straight line (see second photo).

5 0
3 years ago
Write an equation of the circle given its center and radius
lara [203]

Answer:

16=(x-0)^{2}+(x-0)^{2}

Step-by-step explanation:

In writing equations for circles with the center and radius given we follow the formula r^{2}=(x-h)^{2}+(y-k)^{2}.

The value of h and k are the center values of (0,0).

So we have:

h = 0

k = 0

r = 4

Now let's plug these values into our formula.

4^{2}=(x-h)^{2}+(x-k)^{2}

4^{2}=(x-0)^{2}+(x-0)^{2}

16=(x-0)^{2}+(x-0)^{2}

7 0
4 years ago
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Please help me with this geo problem
Over [174]

Answer:

  • x = 1.25
  • y = 1.75

Step-by-step explanation:

Find x

  • 8/10 = 5/(5 + x)          Cross multiply
  • 8*(5 + x) = 10*5          Combine on the right
  • 8(5 + x) = 50              Remove the brackets on the left.
  • 40 + 8x = 50              Subtract 40 from both sides.
  • 40-40 +8x = 50-40    Combine
  • 8x = 10                        Divide by 8
  • 8x/8 = 10/8                 Divide
  • x = 1.25

Find y

  • 7/(7 + y) = 8/10                    Cross multiply
  • 8*(7 + y) = 10 * 7                  Combine the right
  • 8(7 + y) = 70                        Remove the brackets.
  • 56 + 8y = 70                       Subtract 56 from both sides
  • 56 - 56 + 8y = 70 - 56       Combine
  • 8y = 14                                Divide by 8
  • y = 1.75
5 0
3 years ago
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