Answer:
Step-by-step explanation:
The area of a trapezium is given as;
Area = 
(a + b)h
where: a is the length of the upper side, b is the length of its base and h is its height.
This implies that; a = x - 4, b = x + 5, h = 2x and area = 351
Thus,
351 = ((x - 4) + (x + 50)) 2x
= (x - 4 + x + 5) x
531 = (2x + 1) x
= 2
+ x
So that;
2 + x - 531 = 0
This gives a quadratic equation.
Answer:
B
Step-by-step explanation:
too easy
Answer:
standard form: −3x³+5x+6
degree and number of terms.
The degree of a polynomial is the highest degree of its terms. 3
The leading term in a polynomial is the term with the highest degree.
−3x³
The leading coefficient of a polynomial is the coefficient of the leading term. −3
List the results.
Polynomial Degree: 3
Leading Term: −3x³
Leading Coefficient: −3
Step-by-step explanation:
Scores are {72, 97, 82, x} where x is the unknown fourth score
They add up to 72+97+82+x = x+251
Divide this sum over four because there are four scores we want to average out. We end up with (x+251)/4 = M where M is the mean. Asa wants the mean to be 82, so make M = 82.
We can replace M with 82 and solve for x like so
(x+251)/4 = M
(x+251)/4 = 82
x+251 = 4*82
x+251 = 328
x = 328-251
x = 77
Asa needs a score of 77 on the fourth test so that the mean of the four tests is 82. If she scores higher than 77 on the fourth test, then the mean will be larger than 82.
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Depending on what your teacher is looking for, the first step is to establish your variable. So you would say "let x = fourth score". However, that seems too easy. So perhaps your teacher is looking for the equation (x+251)/4 = 82 or some variant of it.
Answer:
H-U-I-C- 4X7X468
Step-by-step explanation:
