Answer:
C. 400
Step-by-step explanation:
The number 14752 is "Fourteen thousand, seven hundred and fifty two"
The 1 is the place of ten thousands ⇒ 10,000
The 4 is the place of thousands ⇒ 4,000
The 7 is the place of hundreds ⇒ 700
The 5 is the place of tens ⇒ 50
The 2 is the place of units ⇒ 2
So we need to find how many groups of tens are in 4000.
To do this, divide 4000 by 10.
To divide anything by 10, simply move the decimal point one place to the left.
Therefore, there are 400 groups of ten in 4000
as 400 × 10 = 4000
For this case, we can model the problem as a triangle with a right angle.
Where,
x, y: lengths of the sides of the triangle
d: hypotenuse of the triangle
We then have the following relationship:
![d ^ 2 = x ^ 2 + y ^ 2 ](https://tex.z-dn.net/?f=d%20%5E%202%20%3D%20x%20%5E%202%20%2B%20y%20%5E%202%0A)
Clearing d we have:
Answer:
A functions that would best model the situation above is:
D square root
Answer:
r = 3 in.
Step-by-step explanation:
vol = Bh where B is the area of the base and h is the height of the cylinder
The base is a circle so
B =
h = 5
141.3 = 3.14(5)![r^{2}](https://tex.z-dn.net/?f=r%5E%7B2%7D)
= 15.7![r^{2}](https://tex.z-dn.net/?f=r%5E%7B2%7D)
= 141.3/15.7 = 9
r = 3 in.
Answer:
x = -9, y = 8
or,
(-9, 8)
Explanation:
Equation 1: 2x + 3y = 6
Equation 2: 4x - y = -44
To solve by substitution, make y subject for equation 2.
4x - y = -44
-y = -44 - 4x
y = 4x + 44
Substitute this y value into equation 1.
2x + 3(4x + 44) = 6
2x + 12x + 132 = 6
14x = 6 - 132
14x = -126
x = -9
Now, find y value:
y = 4x + 44
y = 4(-9) + 44
y = 8
To check for solution, insert x and y value in either equations.
2x + 3y = 6
insert values
2(-9) + 3(8) = 6
6 = 6
Hence, the solution is correct as both sides equal.
Half of 128 is 64. This is the answer because if you divide the number by two, you are breaking the number into two pieces, or otherwise, two halves. So, 2 goes into 128 a total of 64 times.