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Tema [17]
3 years ago
9

The area of different squares are shown. For each square, write an expression using a square root that can be used to estimate t

he length of one side.
Help me please! greatly appreciated if so!

Mathematics
1 answer:
antoniya [11.8K]3 years ago
3 0

Answer:

...

Step-by-step explanation:

since the area of a square is side² then we can just square root the area and find the side

first one to the left would be √16, which would equal 4, which in this case is correct

first one the right is √220 which is about 18.832

bottom left √65 which is about 8.062

bottom left √83 which is about 9.110

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Prove that the number A= [tex]20^{8^{2014} } }+113 is composite
Drupady [299]

Cheese proof:

We can just prove that it is divisible by 3, which means that it is composite. We can use modular exponentiation, where if a \equiv b \pmod{n} then a^x \equiv b^x \pmod{n}. In this case, {-1}^{8^{2014}} \equiv 20^{8^{2014}} \pmod{3}. This is much easier to calculate! Since 8^{2014} is even, -1^{8^{2014}}=1, meaning that now we only need to prove that 0\equiv(1+113) \pmod{3}, which is obviously true.

8 0
2 years ago
Complete this number sentence.
murzikaleks [220]

Answer:

carry the one?

Step-by-step explanation:

5 0
3 years ago
What is another way to write the equation 2/3(x+6)=-18?
bagirrra123 [75]

Answer: 2/3x+4=-18

Step-by-step explanation:

2/3(x+6)=-18

do distributive property

2/3*x=2/3x

2/3*6=4

so you get

2/3x+4=-18

4 0
3 years ago
Points P, Q and R are collinear such that PQ : QR=2:3 point P is located at (1,3) and point R is located at (11,15)
balandron [24]

Using line segments, it is found that:

  • The coordinates of Q are (5,7.8).
  • The midpoint of segment PQ is M(6,9).

----------------------------

  • Point P is located at (1,3).
  • Point R is located at (11,15).
  • Point Q is located at (x,y).
  • PQ:QR = 2:3, which means that:

Q - P = \frac{2}{5}(R - P)

This is used to find the x and y coordinates of Q.

----------------------------

  • The <em>x-coordinate</em> of P is 1.
  • The <em>x-coordinate</em> of R is 11.
  • The <em>x-coordinate </em>of Q is x.

Thus:

Q - P = \frac{2}{5}(R - P)

x - 1 = \frac{2}{5}(11 - 1)

x - 1 = \frac{2}{5}10

x - 1 = 4

x = 5

----------------------------

  • The y<em>-coordinate</em> of P is 3.
  • The y<em>-coordinate</em> of R is 15.
  • The y<em>-coordinate </em>of Q is y.

Thus:

Q - P = \frac{2}{5}(R - P)

y - 3 = \frac{2}{5}(15 - 3)

y - 3 = \frac{24}{5}

y - 3 = 4.8

y = 7.8

The coordinates of Q are (5,7.8).

----------------------------

  • The midpoint of segment PQ is the mean of the coordinates, thus:

M = (\frac{1 + 11}{2}, \frac{3 + 15}{2}) = (\frac{12}{2}, \frac{18}{2}) = (6,9)

The midpoint of segment PQ is M(6,9).

A similar problem is given at brainly.com/question/24148182

4 0
3 years ago
PLZ HELP ME OUT Is 1.3 rational or irrational? Is 36 rational or irrational Is 3.14 or pi rational or irrational Is 2/3 rational
Neporo4naja [7]

A rational number can be made by dividing two integers.

An irrational number cannot be made by dividing two integers.

1.3 is rational

36 is rational

2/3 is rational

Pi is not rational

8 0
3 years ago
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