Find the area of a regular octagon with an apothem 9.7 meters long and a side length of 8 meters.
Answers
A = a * P / 2, where a is an apothem and P is a perimeter.
P = 8 * 8 m = 64 m
A = 9.7 m * 64 m / 2
A = 620.8 / 2 m²
A = 310.4 m²
Answer:
The area of a regular octagon is 310.4 m².
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Chris plans to mulch the border surrounding a rectangular garden in his backyard. If the length, l, of the garden (excluding its border) is 3 more than twice its width, w, and the width of the border is , which function represents the area, A, to be mulched in terms of w?
S is a three-digit number. Determine the digits of S from the clues. All the digits are odd. The last two digits add to make ten. The first and last digits add to make eight. The first two digits add to make twelve.
(i need this for school tomorrow)
Answers
Answer:
Ok so here are the simple rules of doing it (very easy) cause I’m not doing it all so . when multiplying a power with The same base keep the base but add the exponents. Dividing, keep the base (if their the same if not then its already simplified same with multiplication) but SUBTRACT the exponents. Also keep the parenthesis if it’s a negative number base.
I’ll do a few.
11) a^10. 11b) 5^4
12) (-2)^2.
13) 10^2. 13b) s^6
14) -4s^5(t^6) <- [Im not sure of this one)
15) x^3(y^3)
Answers
Answer: 515 MPH
Step-by-step explanation: To determine the plane's average speed, we can use the formula:
Average speed = Total distance ÷ Total time
In this case, the total distance is given as 1,416.25 miles and the total time is given as 2.75 hours.
So, by substituting these values into the formula:
Average speed = 1,416.25 miles ÷ 2.75 hours
Simplifying this calculation, we find:
Average speed ≈ 515 mph
Therefore, the plane's average speed is approximately 515 mph.
$25.47
b.
$202.55
c.
$611.20
d.
$4,861.20
Answers
the correct answer is c
Answers
Answer:
The simplified expression is 9x - 5y.
To simplify the expression we can distribute the negative sign to the parenthesis. We can also get rid of the parenthesis of both terms once we have distributed.
We can now combine like terms:
So, our simplified expression is 9x - 5y.
Answers
The required number would be 11 / 3 which represents " Fifteen times a number subtracted from 80 is 25".
What are Arithmetic operations?
Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.
- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.
for example 12 -2 = 10
* Multiplication operation: Multiplies values on either side of the operator
For example 12*2 = 24
To determine the number which is Fifteen times a number subtracted from 80 is 25
Let the number be x.
As per the given condition,
Here the required number would be Fifteen times = 15x and
Then this is subtracted from 80; 80 - 15x
⇒ 80 - 15x = 25
⇒ -15x = 25 - 80
⇒ -15x = -55
⇒ x = -55 / -15
Apply the Division operation, and we get
⇒ x = 11/3
Therefore, the required number would be 11 / 3.
Learn more about Arithmetic operations here:
#SPJ2
15 times the number = 15x
This is subtracted from 80, 80 - 15x
80 - 15x = 25
-15x = 25 - 80
-15x = -55
x = -55 / -15
x = 11/3
So the number is 11 / 3.
Answers
Answer
31,200,000
Explanation
Firstly, calculate the constant of proportionality.
Al ∝ N
Al = kN Where Al = number of aluminium cans, k = constant and N = number of people using the can.
Al = kN
k = Al/N
= 120000/500
= 240
Equation becomes;
Al = 240N
For 130000 cans;
Al = 240 × 130000
= 31,200,000