Answer:
Pentagon
Step-by-step explanation:
Answer:
2/3 or 66%
Step-by-step explanation:
there are 3 odd numbers on a 6 sided die
3 + 1 = 4
4/6 = 2/3
9514 1404 393
Answer:
a) y = -7/640x^2 +7/4x
b) y = -7/640(x -80)^2 +70
Step-by-step explanation:
a) Given the equation in standard form:
y = ax^2 +bx +c
we can use the points (0, 0), (80, 70), and (160, 0) to find the values of a, b, c.
a·0 +b·0 +c = 0
a·80^2 +b·80 +c = 70
a·160^2 +b·160 +c = 0
The first equation tells us that c=0, so we can write a reduced matrix for the last two equations. The augmented matrix is ...
A matrix solver finds the solution to be ...
a = -0.0109375 = 7/640, b = 1.75 = 7/4
The standard-form equation for Money's path is ...
y = -7/640x^2 +7/4x
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b) Factoring out -7/64, we have ...
y = -7/640(x^2 -160x)
adding and subtracting the square of the x-coefficient, we have ...
y = -7/640(x^2 -160x +6400) +70
y = -7/640(x -80)^2 +70
Answer: 45% of 62 would be 27.9
Step-by-step explanation:
So the way I always figure these out is state the facts first. So we know 62 is equal to 100% in the equation. That means if we divided 62 by 10 then we would also divide 100% by 10%.
62 (divided by) 10 = 6.2
100% (divided by) 10% = 10%
Now we know what 10% percent of 62 is. We need to find 45%. Well divide 6.2 by 2 to get 5 % of 62. (That would be 3.1). Now that we know 10% of 62 and 5% of 62 we are all set.
6.2 x 4 = 24.8
24.8 = 40%
3.1 + 24.8 = 27.9
27.9 = 45% of 62
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