Answer:
4
Step-by-step explanation:
20%=0.2
0.2 times 20 will give you the answer 4
Answer:
the first term is 67
Step-by-step explanation:
A finite arithmetic sequence has 12 terms. The last term Is 100 and the common difference is 3.
the formula for nth term is
Equation for 12th term is
a_12 is the last term, a1 is the first term and d is the common difference
a12= 100, d= 3
Subtract 33 from both sides
a_1= 67
So the first term is 67
If we are talking about the lowest elevation, it would be -7
if Death Valley is 40 times lower than the lowest elevation of Long Beach
u would multiply the 2
so 40x7=280
then you subtract from -7
-7-280=-287
the approximate elevation of Death Valley is -287 feet below sea level
Answer:
A. 5
Step-by-step explanation:
The longest side of the right triangle is the hypotenuse and it is √61 units. The other legs of the triangle is x unit and (x + 1) units.
From Pythagoras theorem for right angle triangle, the square of the hypotenuse is equal to the sum of the square of the other sides of the triangle. This implies that:
(√61)² = (x)² + (x + 1)²
x² + x² + 2x + 1 = 61
2x² + 2x + 1 - 61 = 0
2x² + 2x -60 = 0
Dividing through by 2 gives:
x² + x - 30 = 0
x² + 6x - 5x - 30 = 0
x(x + 6) -5(x + 6) = 0
(x-5)(x+6) = 0
x-5 = 0 or x+6 = 0
x = 5 or x = -6
Since the length of a side cannot be negative, x = 5 units