One way to locate the vertex is to obtain the coefficients a, b and c from the quadratic and then calculate
-(-16)
x = -b / (2a). Here, x = ---------- = -2
2(-4)
Next, evaluate y at x = -2: y = -4(-2)^2 - 16(-2) - 12 = -16 + 32 - 12
y = 4
the vertex is at (-2,4).
We solve the question as follows:
Simple interest=Principle×Rate×Time
Thus given:
p=$55000, R=2.5%, time= 1 year
thus
Interest=55000×0.025×1=$1375
To evaluate the amount required to keep up with the inflation, your interest rate should match the inflation rate otherwise prices are going up faster than the savings.
Required interest rate=55000×0.034×1=$1870
The buying power lost will be the difference between your required interest and actual interest.
Thus:
Buying power lost=1870-1375=$495
X = gym memberships, and y = bottles of water
30x + 7y = 1050.....when x = 28
30(28) + 7y = 1050
840 + 7y = 1050
7y = 1050 - 840
7y = 210
y = 210/7
y = 30....so he would have to sell 30 water bottles
Answer:
there's no picture
Step-by-step explanation:
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Answer:
Use the figure for Questions 3 and 4.
(700
3. What is m2?
B 70
A 50
60° 3/4
C 110
D 120
40
4. What is m24?
A 10 B 60
C 100
D 120
Step-by-step explanation:
Use the figure for Questions 3 and 4.
(700
3. What is m2?
B 70
A 50
60° 3/4
C 110
D 120
40
4. What is m24?
A 10 B 60
C 100
D 120
