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Sveta_85 [38]
3 years ago
12

Evaluate the expression. Let g=3 h=9 4h+2g+4

Mathematics
2 answers:
Sophie [7]3 years ago
5 0
46 is the answer. The equation is 4x9+2x3+4=46
Anarel [89]3 years ago
3 0

Answer:

46

Step-by-step explanation:

  1. 4(9)+2(3)+4
  2. 36+6+4
  3. 46
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What is the value of the expression 24 + 32? Numerical Answers Expected! Answer for Blank 1:
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Answer:

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4 years ago
. Given that O is the centre of the following circle, find the values of the unknowns.​
alex41 [277]

Given:

Radius of circle is 13 cm

Height of triangle is 5 cm

To find:

Value of 'a' and 'b'

Steps:

To find value of 'a', we will use Pythagoras theorem as the triangle is a right angle triangle,

A² + B² = C²

a^{2} + 5^{2} = 13^{2}

a^{2} + 25 = 169

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\sqrt{a^{2}}=\sqrt{144}

a = 12

Now to find the value of 'b', i will use law of cosine,

c=\sqrt{a^{2}+b^{2}-2ab(cos\beta ) }

12 = \sqrt{13^{2}+5^{2}-2(5)(13)(cos\beta )}\\12=\sqrt{169 + 25-130(cos\beta )}\\12=\sqrt{194-130(cos\beta )}\\144 = 194 - 130(cos\beta )\\50 = 130(cos\beta )\\cos\beta =   0.3846\\\beta  = cos^{-1}(0.3846)\\\beta = 67.38

Therefore, the values of 'a' and 'b' is 12 and 67.38 respectively

Happy to help :)

If u need any help feel free to ask

3 0
3 years ago
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