Step-by-step explanation:
x^2+4x=0
therefore x=-4
Absolute values are treated the same way as brackets, therefore, you have to add one first (complete inside the brackets)
i.e.
y = |(-3) + 1|
y = |-2|
y = 2
All you have to do is draw a line on all the posible numbers that can be x makes sure to draw a arrow at the end of the number line. Either that or draw grapshs a dot on every number less then 3. sorry if its worng :)
Answer:
65.5 degrees
Step-by-step explanation:
Triangles add up to 180 degrees. So, the last value has to make the rest add up to 180.
Let x be the unknown degree.
61 + 53.5 + x = 180.
You cancel out the 61 and the 53.3 by subtraction, making you get
x = 65.5
Hope I helped !!! :)
Answer:
2050
Step-by-step explanation:
<u>Year 2010</u>
The number of people over 65 years of age =32 million
Total population = 307 million.
P(meeting a person over 65 at random in 2010)
<u>Year 2050</u>
The number of people over 65 years of age =88 million
Total population = 434 million.
P(meeting a person over 65 at random in 2050)
Conclusion: Since 0.2028 is greater than 0.1042, the chances of meeting a person over 65 at random will be greater in 2050