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:
- <u><em>option C) 1.61</em></u>
Step-by-step explanation:
The question is to evaluate the natural logarithm of 5. Natural logarithms are logarithms with base <em>e</em>.
<em>e</em> is the irrational number equal to 2.71828182845904523536028747 ... (being irrational the decimals do not end and do not have a repetition period).
Logarithms are evaluated using tables or scientific calculators.
ln (5) = 1.6094379... it is also an irrational number, so it has infinite decimals with no repetition period.
So, rounding to two decimal numbers, ln (5) = 1.61, which is the option C).
1 pound and 2/7 hoped this helped
Answer:
80
Step-by-step explanation:
First move like terms to one side:
x/2=25+15
Notice that the sign (+ or -) changes when we switch it to the opposite side
x/2=40
Multiply both sides by 2...
x=80
9514 1404 393
Answer:
16 nickels
Step-by-step explanation:
Robert can group his coins into groups consisting of 1 nickel and 4 pennies. The value of each group is 9¢, so the number of groups Robert can make is ...
$1.44/$0.09 = 16 . . . groups
Since there is 1 nickel in each group, Robert has 16 nickels.
