Answer:
20
Step-by-step explanation:
Our expression:
2 * (18 + - 8)
Plus then minus (+ -) is the same as just minus ( - )
Some examples:
1 + (+ 1) = 2
1 + (- 1) = 0
1 - (+ 1) = 0
1 - (- 1) = 2
Thus, 18 + - 8 is the same as 18 - 8
2 * (18 + - 8) =
= 2 * (18 - 8) =
= 2* (10) =
= 2 * 10 =
= 20
Answer: 20
Answer:
C. Quadratic model
Step-by-step explanation:
Determine what type of model best fits the given situation: Farmer Joe has 1,000 bushels of corn to sell. Presently the market price for corn is $5.00 a bushel. He expects the market price to increase by $0.15 per week. For each week he waits to sell, he loses ten bushels due to spoilage. A. none of these B. exponential C. quadratic D. linear
Given:
The quantity of corn Farmer Joe has to sell = 1,000 bushels
The present market price for corn = $5.00 a bushel
The amount by which he expects the market price to rise per week =$0.15
The number of bushels lost to spoilage per week = 10
The price of the corn per bushel with time = 5 + 0.15×t
The amount of corn left with time= 1000 - 10×t
Where;
t = Time in minutes
Value of the corn = Amount of corn left × Price of corn
Value of the corn = (1000 - 10×t) × (5 + 0.15×t)
=(1000-10t) × (5+0.15t)
=5,000 + 150t - 50t - 1.5t²
= -1.5t² +100t + 5000
Value of the corn= -1.5t² +100t + 5000.
It is a quadratic model
Answer: it’s square root(72) and no the length is not a rational number
Step-by-step explanation:
Answer:
1. 62
2. 13
3. 6
4. 18
5. 3
Step-by-step explanation:
1. Let's use pemdas
16*1/2= 8
32 / 4 * 8 - 2
8*8 - 2
64 - 2
= 62
2. Let's use pemdas
5*2/5 = 2
20 / 2 + 3
10 +3
= 13
3. Let's use pemdas
1/2 * 24 / 3 +2
12 / 3 +2
4 +2
=6
4. Let's use pemdas
2 * (6 / 2 + 8) -4
2 * 11 - 4
22 - 4
= 18
5. Let's use pemdas
(28 / 7 +6 / 3) * 1/2
( 4 + 2) *1/2
6 *1/2
= 3
Answer:
Zelie should have divided both numbers by 14 to find the scale (2)
Step-by-step explanation:
