Answer:
Step-by-step explanation:
y=ax^2+bx+c we are given point (0,5) so if x=0, y=c, so c=5. We have two other points
(2,3)(4,9) which gives us
4a+2b+5=3 and 16a+4b+5=9
Subtracting twice the first from the second
16a+4b+5-8a-4b-10=9-6
8a-5=3
8a=8, so a=1, so using 4a+2b+5=3 we get
4(1)+2b+5=3
2b+9=3
2b=-6
b=-3 so our quadratic is
y=x^2-3x+5
Answer:
D. Two yards of fabric are used to make five place mats.
Step-by-step explanation:
Given
Required
Select the option that describes the scenario
Options A, B and C do not describe the given scenario.
because they all represent
Analyzing D:
We have the following:
Yards = 2
Place Mats = 5
Compare this ratio with the given scenario, we have:
Answer:
ito ba sorry nalang kung Mali
Step-by-step explanation:
kinuha ko lang yan sa g.o.o.g.l.e
X = time, minutes
y = length, inches
When x = 32 min, y = 11.2 in
When x = 32+18 = 50, y = 10.75 in
Assume that a linear relatioship exists between x and y.
In table form, the given data is
x, min: 32 50
y, in: 11.2 10.75
The slope is
m = (10.75 - 11.2)/(50 - 32) = -0.025
In point-slope form, the required equation is
When x = 3 hours = 180 minutes, obtain
y - 10.75 = -0.025*(180 - 50) = -3.25
y = -3.25 + 10.75 = 7.5 in
Answer: 7.5 inches
If it's just simplifying the equation then the answer is:
-4.338