Answer:
3
Step-by-step explanation:
area of square=l*b so
81=3x multiply 3x
81=9x^2
81/9=x^2
9=x^2
=x
3=x
_Brainliest if helped!Roots -2/3 and 5 Means X=-2/3 or X=5
Hence the equation would be
(X+2/3)(X-5)=0
(3X+2)(X-5)=0
Answer : 
Answer:
Lower quartile: 21.5
Median: 45
Upper quartile: 57.5
Step-by-step explanation:
pls mark brainliest
Answer:
-8 + x ≥ 9
Step-by-step explanation:
Let's look at your sentence:
The <u>sum of -8 and a number</u> is <u>at least 9 </u>what is the equation look like
Sum is the result of adding
At least 9 means that the number is 9 or greater.
So what you have here is an inequality expression:
Sum of -8 and a number
-8 + x
x here is the "number" since we do not know the value we will use "x" to represent that number.
At least 9
At least means that it is equal or greater, so we use this expression ≥
and so we use put that all together
-8 + x ≥ 9
The height of Mount Kilimanjaro is 19,340 feet.
To convert to scientific notation move the decimal point so there is only 1 digit to the left of the decimal pint, you then multiply that by 10 raised to the number of spaces you moved the decimal point.
19,340 - Move the decimal point 4 places to the left to get 1.9340
You can remove the 0 at the end to get 1.934
You moved the decimal 4 places so raise 10 to 4 and get the final answer:
1.934 x 10^4
The first choice is the correct one.
