Answer:
x=4<u>+</u> 2root14/4
by using quadratic formula
At a concession stand, seven hot dog(s) and four hamburger(s) cost $21:25, four hot dog(s) and seven hamburger(s) cost $22.75 Fi
2 answers:
Step-by-step explanation:
If 4 hamburger = $21.25
1 hamburger = x
Cross multiply
4 x x = $21.25 x 1
4x = $21.25
Devide both side with the coefficient of x
4x/4 = $21.25/4
X = $5.3125
Therefore 1 hamburger cost $5.31
If 4 hotdogs = $22.75
1 hotdog = y
Cross multiply
4 x y = $22.75 x 1
4y = $22.75
Devide both sides with the coefficient of y
4y/4 = $22.75/4
Y = $5.6875
Therefore one hotdog cost $5.69
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The value of n to the nearest whole number is 22
<h3>Trigonometry</h3>From the question, we are to determine the value of n to the nearest whole number
In the diagram,
The given triangle is a right triangle.
Thus,
Using the <em>Pythagorean theorem</em>, we have that
n² = h² + k²
∴ n² = 9² + 20²
n² = 81 + 400
n² = 481
n = √481
n = 21.93
n ≈ 22
Hence, the value of n to the nearest whole number is 22
Learn more on Trigonometry here: brainly.com/question/21568111
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a) <u>n² + 6 </u>
~Here n is the number of term. So, put n = 1,2,3,4.... to get the term.
- If n = 1, first term = 1² + 6 = 7
- n = 2, second term = 10
- n = 3, third temm = 15
- n = 4, fourth term = 22
- n = 10, tenth term = 106
b) <u>3n²</u>
- If n = 1, first term = 3
- n = 2, second term = 12
- n = 3, third term = 27
- n = 4, fourth term = 48
- n = 10, tenth term = 300