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Lina20 [59]
2 years ago
13

Simple true and false question

Mathematics
2 answers:
Nesterboy [21]2 years ago
8 0

Answer:

true

Step-by-step explanation:

Solnce55 [7]2 years ago
4 0
False, the value would be -2
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Find the distance between the points (1,8) and (9, 2).
grin007 [14]

Answer:

distance = \sqrt{(x_{1} -x_{2})^2+(y_{1} -y_{2})^2  }\\\\

             =\sqrt{(9-1)^2+(2-8)^2  }\\\\=\sqrt{8^2 + 6^2}\\\\=\sqrt{64 +36 }\\\\=\sqrt{100} = 10units

6 0
3 years ago
Which number is irrational
alina1380 [7]

For this case, we have by definition, that an irrational number is a number that can not be expressed as a fraction \frac {a} {b}, where a and b are integers and b is nonzero.

Some examples are:

\sqrt {2}, \sqrt {3}, e, \pi.

So, that the answer is \pi.

Answer:

Option C

4 0
3 years ago
(Solve Problems Involving Proportional Relationships)
gavmur [86]
Okay, so the first thing we have to do is take 6ft and convert it into inches so we get the equation (6x12)+6 6 times 12 is 72 so that gives us 72in plus 6 which is 78 and with that answer we take 78in and divide it by 6.17 which is 12.18. She has a long arm measuring i while feet and 18 inches lol
6 0
2 years ago
A triangle has sides measuring 2 inches and 7 inches. If x represents the
xz_007 [3.2K]

Answer:

its d.

Step-by-step explanation:

the other guy is wrong

3 0
3 years ago
If sin tetha=root3/2, what is cos tetha?​
Minchanka [31]

Answer:

The value of cos Ф is ± \frac{1}{2}

Step-by-step explanation:

There are important rules for sin Ф and cos Ф

  • sin²Ф + cos²Ф = 1
  • sin²Ф = 1 - cos²Ф
  • cos²Ф = 1 - sin²Ф

∵ sin Ф = \frac{\sqrt{3}}{2}

∴ sin²Ф = (\frac{\sqrt{3}}{2})^{2}

∴ sin²Ф = \frac{3}{4}

→ By using the third rule above

∵ cos²Ф = 1 - sin²Ф

∴ cos²Ф = 1 - \frac{3}{4}

∴ cos²Ф = \frac{1}{4}

→ Take square root for both sides

∴ cos Ф = ± \frac{1}{2}

∴ The value of cos Ф is ± \frac{1}{2}

6 0
3 years ago
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