Find the area of the triangle that has a base of 5 in. and a height of 3 and 3/4 in.
2 answers:
The formula for area of a triangle given its base and its height is A = (bh)1/2.
The base and height of the triangle are given as follows.
b = 5
h = 3 3/4 or 15/4
Plug these values into the above formula and solve.
A = (bh)1/2
A = 5(15/4)1/2
A = 75/4 * 1/2
A = 75/8
Answer:
The area of the triangle is in² or
in².
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Let x represent the number.
.. x^2 +x = 2
.. x^2 +x +1/4 = 9/4 . . . . add 1/4 to complete the square
.. x +1/2 = ±3/2 . . . . . . . .square root
.. x = -2, 1
Numbers meeting that requirement are -2 and 1.
.. x^2 +x = 2
.. x^2 +x +1/4 = 9/4 . . . . add 1/4 to complete the square
.. x +1/2 = ±3/2 . . . . . . . .square root
.. x = -2, 1
Numbers meeting that requirement are -2 and 1.
Answer:
2,200 students
Step-by-step explanation:
To find the number of students, create a proportion which is two equal ratios. Since the middle school and the high school are proportional then they have equal ratios.
Solve for x by cross multiplying by multiplying the numerator and denominator of each fraction.
900(110) = 45(x)
99,000=45x
2,200 = x