Help: I am stuck on this maths question on quadratics and turning points (image attached).
2 answers:
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Answer:
The radius is 7
The diameter is 14
The circumference is 43.98 (if they want it simplified put 44)
Step-by-step explanation:
1.The radius is already given in the picture so the answer is 7
2.To find the diameter, multiply the radius by two. 7 times 2=14
3.The formula for circumference is C=2r. Remove the r and replace it with the number 7. Plug 2
7 into your calculator and you will get 43.98
Lets find the prime factorization of 22, 165, 35 and 210. Prime factorization of a number is breaking a number down into the set of prime numbers which multiply together to result in the original number.
The prime factorization of the number 22 is:
Similarly, for 165, 35 and 210 we have
Then, we can solve the given questions.
Question 1.
so we can cancel out the number 11 and get
Then, the answer is
Question 2.
and we can cancel out the number 5 and 7, then we obtain
then, the answer is
ANSWER
96 yd
EXPLANATION
Let the width of the rectangle be w, then, the length of the rectangle will be:
The area of a rectangle is calculated using the formula:
It was given that, the area of the rectangle is 320yd²
Divide both sides by 5.
Take square root of both sides to get:
This means the length is
The perimeter of a rectangle is given by:
P=2(w+l)
We plug in the values to get:
The perimeter is 96yd