Answer:
Semicircle
Step-by-step explanation:
As we can see, the arc is bounded by the chord MO
since the chord passes through the center of the circle, we have it that the chord is a diameter
Mathematically, an arc bounded by a diameter represents half of a circle
So we can conclude that the arc MNO in circle C is a semicircle
Assuming your numbers are rounded to the nearest km, the minimum area will be ...
(5.5 km)·(10.5 km) = 57.75 km² . . . minimum
And the maximum area will be ...
(6.5 km)·(11.5 km) = 74.75 km² . . . maximum
_____
When a number is rounded to 6 km as the nearest km, its value may actually be anywhere in the range 6 km ± 0.5 km. If you really want to get technical about it, the ranges of possible dimensions are [5.5, 6.5) km and [10.5, 11.5) km, and the range of possible areas is [57.75, 74.75) km².
Answer:
He can buy 3 plants
Step-by-step explanation:
$27 is the total amount of money he can spend, if each plant costs $9 the equation would be like this:
9x = 27
Divide 27 by 9 because division is the opposite operation to multiplication
x = 3
The correct answer is C) 800,000 cubic meters.
The scale given is for the length, width or height of the model. In order to find the scale for the volume, we would cube this scale, since volume is a cubic measurement:
(1/200)³ = 1/8,000,000
Since the volume of the model is 0.1, we multiply this by 8,000,000 to find the volume of the actual dam:
0.1(8000000) = 800,000
Answer: x=4
Step-by-step explanation:
Simplifying
(14x + -15) + 139 = 180
Reorder the terms:
(-15 + 14x) + 139 = 180
Remove parenthesis around (-15 + 14x)
-15 + 14x + 139 = 180
Reorder the terms:
-15 + 139 + 14x = 180
Combine like terms: -15 + 139 = 124
124 + 14x = 180
Solving
124 + 14x = 180
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-124' to each side of the equation.
124 + -124 + 14x = 180 + -124
Combine like terms: 124 + -124 = 0
0 + 14x = 180 + -124
14x = 180 + -124
Combine like terms: 180 + -124 = 56
14x = 56
Divide each side by '14'.
x = 4
Simplifying
x = 4
