Answer:
hello there,
the answer for this equation is:
The value of Start Fraction 6 Over x End Fraction + 2x2, when x = 3 is 20.
Step-by-step explanation:
:
June has $1.95 in dimes and nickels. She has a total of 28 coins. How many of each type of coin does she have.
2 answers:
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<u><em>v=-6 is the right answer. </em></u> First you had to subtract by 7 from both sides of equation, and it gave us, . And then simplify, and it gave us,
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. Next simplify, and it gave us,
. Then you divide by 2 from both sides of equation, and it gave us,
. And finally simplify, and it gave us the answer is <u><em>v=-6 is the right answer.</em></u> Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie
The measure of angle x will be 88 degrees. Then the correct option is C.
The complete question is attached below.
<h3>What is law of cosine?</h3>Let there is a triangle ABC such that |AB| = a units, |AC| = b units, and |BC| = c units and the internal angle A is of θ degrees, then we have:
2ab cos θ = a² + b² – c²
The triangle is shown below.
Then the value of the variable x will be
2 · 7 · 10 · cos x = 7² + 10² – 12²
140 · cos x = 49 + 100 – 144
cos x = (149 – 144) / 140
x = 87.95 ≈ 88°
Then the correct option is C.
Learn more about law of cosines here:
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Given:
Volume of a rectangular prism is:
Dimensions of the rectangular prism are:
To find:
The height of the rectangular prism.
Solution:
The volume of a rectangular prism is:
After substituting the values, we get
Therefore, the correct option is C.