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Delicious77 [7]
2 years ago
12

What is an equation of the line that passes

Mathematics
1 answer:
sasho [114]2 years ago
7 0
2x-2y

parallel means that the x part is the same

and it is -2y because the y-coordinate is -2
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`h(t)=-5t^{2}+10t+3`
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8 0
3 years ago
If 6 lemons cost 90p what is the price of 1 lemon and four lemons
alina1380 [7]
75p is the correct answer because 1 lemon is 15p
8 0
3 years ago
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Suppose that X1 and X2 are independent random variables each with a mean μ and a variance σ^2. Compute the mean and variance of
Deffense [45]

Mean:

E[Y] = E[3X₁ + X₂]

E[Y] = 3 E[X₁] + E[X₂]

E[Y] = 3µ + µ

E[Y] = 4µ

Variance:

Var[Y] = Var[3X₁ + X₂]

Var[Y] = 3² Var[X₁] + 2 Covar[X₁, X₂] + 1² Var[X₂]

(the covariance is 0 since X₁ and X₂ are independent)

Var[Y] = 9 Var[X₁] + Var[X₂]

Var[Y] = 9σ² + σ²

Var[Y] = 10σ²

5 0
3 years ago
h = -16t^2 + 541? its been forever since i had to do this and frankly I'm completely lost. please if you answer this can you tea
natta225 [31]
A = -16  b = 0  c = 541
Use the quadratic formula which is
x = [-b +- sq root (b^2 -4*a*c)] / 2*a
x = [-0 +-sq root (0 -4*-16*541)] / 2 * -16
x = + - sq root (0 -4*-16*541) / -32
x = + - sq root (34,624) / -32
x = + - 186.075 / -32

x1 = 186.075 / -32 = <span> <span> <span> -5.81484375 </span> </span> </span>
x2 = -186.075 / -32 = <span> <span> <span> 5.81484375 </span> </span> </span>


7 0
3 years ago
If the price of a purse increased from $45 to $54, what was the percent of increased
pishuonlain [190]
54-45/45 x 100%
= 20%
5 0
3 years ago
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