Find the values of x and y
1 answer:
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Answer:
2
Step-by-step explanation:
Given in the question,
a + b = √17
(a+b)² = 17
a² + b² +2ab = 17
a² + b² = 17 - 2ab
<h3>Area of triangle </h3>1/2 (h)(b)
here h is perpendicular height of triangle = a
b is the base of triangle = b
<h3>Use pythagorus theorem:</h3>hypotenuse² = base² + height²
3² = a² + b²
9 = a² + b²
9 = 17 - 2ab
9 - 17 = -2ab
-8 = -2ab
cancel minus on both sides
8 = 2ab
ab = 8/2
ab = 4
Plug ab in the formula of area
1/2 (h)(b)
1/2 (a)(b)
1/2 (4)
4/2
2
Answer:
The expression for number of sandwiches is
9 small sandwiches can be made.
Step-by-step explanation:
Given:
Length of party-sized sandwich (l) = 3/4 yard
Length of each small sandwich (s) = 1/12 yard
Now, let the total number of small sandwiches be 'n'.
Now, sum of all the lengths of small sandwiches will be equal to the length of the party-sized sandwiches.
Therefore, framing in equation form, we have:
Length of large sandwich = Length of small sandwich × Total number of small sandwiches.
Now, plug in the given values and solve for 'n'. This gives,
Therefore, 9 small sandwiches can be made.