Answer:
+ 3x +9x +27 = 0
x(x+3)+9(x+3)=0
(x+3)(x+9)=0
x=-3, x=-9
Step-by-step explanation:
a=1 b=12 c=27
sum=12
factor=27x 1
3x9
also 3+9=12
3 is the right number in the coordinate pair, hence it it the range.
Answer: 10
Step-by-step explanation:
The interquartile range is the whole box but not the whiskers, so lowest number to highest number you take these two and subtract thus the answer is 10
20 - 30 = 10
Answer:
72 Keychains
Step-by-step explanation:
120 feet = $3.25
divide 120 by 3.25 to find how much string can be bought with $1. The result is 36.923. Then multiply that number by the number of dollars allotted to buying string. 8*36.923= 295.384. This is the total number of feet of string they have. They use 1 foot for each key chain so they can make 295 keychains based on how much string they have.
35 beads = $2.59
Divide 35 by 2.59 to find how many beads can be bought with $1. The result is 13.514. Then multiply that number by the number of dollars allotted to buying beads. This comes out to 364.878. This means She can buy 364 beads. Each Key chain needs 5 beads so divide 364/5 getting a total of 72 keychains.
Since there aren't enough beads to make any more than 72 keychains, they can make a total of 72 keychains (even though there is extra string)
Answer:

Step-by-step explanation:
Let's call
the balloon's height above the ground and
the horizontal distance between the balloon and the first milepost.
If the angle of the depression of this milepost is 24 degrees, we can say the following:

<em>
(equation 1)</em>
For the next milepost, the horizontal distance between the balloon and tihs milepost will be
and the angle of depression will be 20 degrees, so we can say the following


then, replacing from <em>equation 1</em>




Resolving, we'll find the value of 

So, the balloon's height above the ground is 1.99miles