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lisov135 [29]
3 years ago
14

Find b and c. show your work for brainliest please​

Mathematics
1 answer:
Taya2010 [7]3 years ago
5 0

tan30° =\frac{5}{b}

\frac{1}{√3}=\frac{5}{b}

b=5×√3

<h3>b=5√3</h3>

sin30°=\frac{5}{c}

\frac{1}{2}=\frac{5}{c}

c=\frac{5}{2}

<h3>c=2.5</h3>

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Sherry claims that the expression 1/x will always be equivalent to a repeating decimal whenever x is an odd number greater than
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Answer:

The correct options are :

b. 5

e. 25

Step-by-step explanation:

The question is incomplete. The missing part is :

'' Which of these values will prove Sherry's claim is false :

a. 3

b. 5

c. 7

d. 11

e. 25 ''

One way to prove that Sherry's claim is false is finding one odd number greater than 1 that when we replace it in the denominator of the expression \frac{1}{x} the result isn't equivalent to a repeating decimal.

Let's analyze each option :

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3 is an odd number greater than 1 ⇒ If we replace in the expression \frac{1}{x} ⇒

\frac{1}{3}  ≅ 0.3333 (repeating decimal)

The option a. 3 won't prove that Sherry's claim is false.

  • b. 5

5 is an odd number greater than 1 ⇒ If we replace in the expression \frac{1}{x} ⇒

\frac{1}{5}=0.2

The result isn't a repeating decimal.

The option b. 5 will prove that Sherry's claim is false.

  • c. 7

7 is an odd number greater than 1 ⇒ If we replace in the expression \frac{1}{x} ⇒

\frac{1}{7} ≅ 0.1428 (repeating decimal)

The option c. 7 won't prove that Sherry's claim is false.

  • d. 11

11 is an odd number greater than 1 ⇒ If we replace in the expression \frac{1}{x} ⇒

\frac{1}{11} ≅ 0.0909 (repeating decimal)

The option d. 11 won't prove that Sherry's claim is false.

  • e. 25

25 is an odd number greater than 1 ⇒ If we replace in the expression \frac{1}{x} ⇒

\frac{1}{25} ≅ 0.04

The result isn't a repeating decimal

The option e. 25 will prove that Sherry's claim is false.

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3 years ago
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Answer:

B is the answer

Step-by-step explanation:

4 0
3 years ago
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Using transformation rules, it is found that the correct option is:

No, A'C'B' is located at A(-1,1), C'(-3,4) and B'(-5,1).

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

  • The transformation rule for a reflection over the x-axis is (x,y) \rightarrow (x,- y)
  • The transformation rule for a rotation of 180º is (x,y) \rightarrow (-x,-y)

  • After the reflection over the x-axis: (x,y) \rightarrow (x, -y)
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Answer:

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