Firstly, we need to understand the formula of point-slope form:
Where x and y is the coordinates and m is the slope respectively.
To find the slope:
In this case:
We can then put the above slope and the point (-1,4) into the formula:
4-y = -1/2(-1-x)
-y = 1/2+1/2x-4
y = -1/2x+7/2
Alternatively:
y-4=-1/2(x-(-1))
y=-1/2x-1/2+4
y = -1/2x+7/2
Therefore the answer is y = -1/2x+7/2.
Hope it helps!
Based on the cost of the contract and the probability to win it, the total expected value of the contract proposal is -$2500.
<h3>How to calculate the expected value of a contract proposal?</h3>
The general formula to calculate the expected value is:
- Expected value: possibility of winnind the contract x the amount when winning - possibility of loing the contract x possible loss
- Possibility of winning the contract= 0.10
- Possibility of losing the contract = 0.90
- Gain: $65000
- Loss: $10000
<h3>What is the expected value of the contract?</h3>
- Expected value: 0.10 x 65000 - 0.90 x 10000
- Expected value: 6500 - 9000
- Expected value: -$2500
Learn more about contract in: brainly.com/question/2669219
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Answer:
the answer is 4
Step-by-step explanation:
if y=21 the we substitute in the main equation
21=8x-11
8x=32
x=4
Answer: 22cm
Step-by-step explanation:
A square has four sides with equal length So, the perimeter of a square = 4L (i.e 4 x length)
= 4 x 5.5cm
= 22cm
Thus, the perimeter of the square is 22cm
Answer: 2 1/5 partes de torta
Step-by-step explanation:
Para contestar esta pregunta debemos sumar cada parte de torta:
0.7+9/12+6/8 =
Convertimos las fracciones en decimales, para tener todos los valores expresados de la misma forma. Dividiendo:
9/12=0.75
6/8=0.75
Sumamos
:
0.7+0.75+0.75 = 2.2 partes = 2 1/5 partes
En conclusión, Carolina y sus amigos comieron 2 1/5 partes de torta.
