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hodyreva [135]
3 years ago
13

Which number is not irrational? A. 20 B. 127 c. 125 D. V50

Mathematics
1 answer:
Tju [1.3M]3 years ago
7 0

Answer:

A. A rational number gives you a remender when you divide it through by let say an even number 2.so irrational gives you no remender, hence A as an answer.

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Solve the system by substitution: -4.5x-2y=-12.15 3.25x-y=-0.75
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The answer is x=0.97 while y=3.90

4 0
2 years ago
Write the function f(x) = 3x2 - 6x + 5 in vertex
weeeeeb [17]
3(x-1)^2 +2
This is your answer in vertex form, your h and k values are the vertex. Solving the function by using b/2a, we get that h is 1. ( in the equation 3 is your a, 6 is b and 5 is c.). ( 6/2(3)) = 1. We can then plug in 1 as x into the original equation and get positive 2 ( 3(1)^2 -6(1) +5) = 3-6+5 = 2. This is your vertex. In the function, your a value will always stay the same as this is your shrink or stretch. In this case, a is 3 so it will go outside the parenthesis. Put that all together and you get the function above.
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7 0
2 years ago
Help pleaseee it’s a quiz<br> 35 points
nekit [7.7K]

Answer:

what do you need help with

Step-by-step explanation:

6 0
2 years ago
`h(t)=-5t^{2}+10t+3`
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8 0
3 years ago
Which equation does the graph below represent?<br> y=1/3+x<br> y=1/3x<br> y=3+x<br> y=3x
barxatty [35]
Lets find 2 points, one obvious one is (0,0), another point is (12,4)

Slope = \frac{4-0}{12-0} =\frac{4}{12} = \frac{4\times 1}{4\times 3} = \frac{1}{3}

y = mx + b

m is the slope

we got m = 1/3

We can eliminate answer choices C and D.

y = 1/3x + b

we need to solve for b

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0 = 1/3(0) + b

0 = 0 + b

b = 0

The equation of the line is y = 1/3x + 0, or y = 1/3x

Your answer is B.
3 0
3 years ago
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