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Thepotemich [5.8K]
3 years ago
9

How to solve 2x-5+3a-5x+10a for combining like terms

Mathematics
1 answer:
vladimir1956 [14]3 years ago
7 0
2x -5x
3a + 10a
And -5
Combine and you get:

-3x + 13a - 5
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shusha [124]
5 because 2/6 of 24 is 8 and the difference of thirteen and 8 is 5
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3 years ago
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Find the slope for the pair of points (1,1)(4,-4)
wolverine [178]
(1, 1) and (4, -4)

Slope formula is : m = (y₂-y₁) / (x₂-x₁)

In this case :

x₁ = 1 ; x₂ = 4 ; y₁ = 1 ; y₂ = -4

Now that you know what variable counts as what, we simply just need to plug everything in.

m = (-4 - 1) / (4 - 1)

Simplify.

m = -5/3

Therefore, your slope is -5/3

~Hope I helped~ :)
6 0
3 years ago
A sequence of 1 million iid symbols(+1 and +2), Xi, are transmitted through a channel and summed to produce a new random variabl
Zigmanuir [339]

Answer:

E(w) = 1600000

v(w) = 240000

Step-by-step explanation:

given data

sequence = 1 million iid  (+1 and +2)

probability of transmitting a +1 =  0.4

solution

sequence will be here as

P{Xi = k } = 0.4              for k = +1

                  0.6              for k = +2

and define is

x1  + x2 + ................ + X1000000

so for expected value for W

E(w) = E( x1  + x2 + ................ +  X1000000 )   ......................1

as per the linear probability of expectation

E(w) = 1000000 ( 0.4 × 1 + 0.6 × 2)

E(w) = 1600000

and

for variance of W

v(w) = V ( x1  + x2 + ................ + X1000000 )    ..........................2

v(w) = V x1  + V x2 + ................  + V  X1000000

here also same as that xi are i.e d so cov(xi, xj ) = 0 and i ≠ j

so

v(w) = 1000000 ( v(x) )

v(w) = 1000000 ( 0.24)

v(w) = 240000

8 0
3 years ago
Is the value of 4 in 46,395 36 times the value of 4 in 14,906
expeople1 [14]
Yesthe value of 4 in 46,395 36 times the value of 4 in 14,906
4 0
3 years ago
Sue invests $600 in an account at 4.5% simple interest paid annually over the term of 10 years. What is the final value?
BaLLatris [955]

Answer:

$870

Step-by-step explanation:

To figure out how much the final value here is, use the formula A = P(1 + rt). (A = total accured amount, P = principal, r = rate (%), t = time (years))

A = 600 * (1 + (10 * 9/200)) (multiply 10 by 9 and put that over 200)

A = 600 * (1 + (90/200)) (90/200 simplifies to 9/20)

A = 600 * (1 + (9/20)) (add 1 (20/20) to 9/20 to get 29/20)

A = 600 * 29/20 (Multiply 600 by 29 and put that over 20)

A = 17400/20 (Divide 17400 by 20 to get 870)

A = 870

$870 is the final value.

6 0
3 years ago
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