W² - 49 = 0
w² - 7² = -
(w-7)(w+7)=0
w -7=0 , or w + 7 =0
w=-7, w=7
Answer: -7, 7.
Answer:
A ≈ 78.54
Step-by-step explanation:
Area of a circle is A=πr^2
Since you do not know r (radius) you take the formula for the circumference of a circle (C=2πr), plug in 31.4 for C, and solve for r
Now that you have the radius of 4.99746521, you round it up to 5 and solve the area formula with 5 in as r.
4-1 would <span>have the difference of 1 + 4</span>
Answer:
No,
12.8 = 12.800
Obviously, 12.800 <u>< </u>12.815.
Answer:21
Step-by-step explanation: plug in 19 and 1
1x3 is 3 plus 19 is 21
