256 being rounded would become 260 and 321 would become 320 so adding up the estimates the would be 580 (real answer is 577)
Answer: Cant answer this question because the question doesnt say/contain how many children were there and how many parents were there. if you list this, i can help
Step-by-step explanation:
Answer:
the volume of the solid is 
Step-by-step explanation:
Given the data in the question;
y = x and y = x²
so
x = x²
x - x² = 0
Radius will be; r = ( x - x² )/2
Area of the circular disk πr² = π[ ( x - x² )/2 ]²
A =
( x - x² )²
So, our volume will be;
V = ₀∫¹ A(x) dx
we substitute
= ₀∫¹
( x - x² )² dx
{ lets expand; ( x - x² )² = x(x-x²) -x²(x-x²) = x² - x³ - x³ + x⁴ = x² + x⁴ - 2x³ }
so we have;
= ₀∫¹
( x² + x⁴ - 2x³ ) dx
=
+
-
![]^1_0](https://tex.z-dn.net/?f=%5D%5E1_0)
=
[
+
-
]
=
[
]
V = 
Therefore, the volume of the solid is 
The equation that represents the given problem is (n-30) + n = 210. The correct option is the first option (n-30) + n = 210
<h3>Linear equation</h3>
From the question, we are to write an equation for the given problem
From the given information,
n = Tom's weight in pounds
If Jim weighs 30 pounds less than Tom
Then,
Jim weighs (n - 30)
Thus,
The sum of their weight is
(n-30) + n
∴ (n-30) + n = 210
Hence, the equation that represents the given problem is (n-30) + n = 210. The correct option is the first option (n-30) + n = 210
Learn more on Linear equations here: brainly.com/question/4681624
#SPJ1

1. Both are corresponding angles, hence they both are equal, so,

Ans. C) 2
2. They both are in interior corressponding, hence their sum is equal to 180°, so,

Ans. D) 7
3. They both are in interior corressponding, hence their sum is equal to 180°, so,

Ans. A) -10
4. Both are corresponding angles, hence they both are equal, so,

Ans. A) 6
If it helps you, please don't forget to follow me.
✌✌✌