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3 years ago

Which property is illustrated (m+7.3)+4.1=m+(7.3+4.1)

Mathematics

1 answer:

dlinn [17]3 years ago

7 0

I think it is the Associative Property of Addition.

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The doubling time of a population of flies is 4 hours. By what factor does the population increase in 24 hours

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The doubling time of a population of flies is 4 hours. By what factor does the population increase in 24 hours

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4 years ago

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A Bar of steel is 340 cm long Issa cuts two 55cm lengths of the bar He then cuts the rest into as many 40cm lengths as possible

Assoli18 [71]

Answer:

5 bars

Step-by-step explanation:

340-(55+55)

230÷40

5.75

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3 years ago

I need help with this stupid question, my teacher got me confused when he kept talking about different things!

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Answer:

2 5/8

Step-by-step explanation:

1 3/4 + 7/8

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3 years ago

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nikdorinn [45]

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Step-by-step explanation:

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3 years ago

The graphs below have the same shape. What is the equation of the red

anyanavicka [17]

Answer:

Option B is correct .

Step-by-step explanation:

According to Question , both the graph have same shape . If we look at the the first graph it cuts x - axis at (0 , 2) and ( 0 , -2) . Hence x = 2 and -2 are the zeroes of the equation .

And ,the given function is ,

$\implies f(x) = 4 - x^2 \\\\\implies f(x) = 4-x^2=0 \\\\\implies 2^2-x^2=0\\\\\implies (2-x)(2+x) = 0 \\\\\boxed{\red{\bf \implies x = 2 , (-2) }}$

Hence ,we can can see that x = 2 and (-2) are the zeroes of graph. 

This implies that if we know the zeroes , we can frame the Equation.

On looking at second parabola , it's clear that cuts x - axis at ( 1, 0 ) and (-1,0). So , 1 and -1 are the zeroes of the quadratic equation . Let the function be g(x) . Here , a and ß are the zeroes.

$\implies g(x) = (x-\alpha)(x-\beta) \\\\\implies g(x) = (1+x)(1-x) \\\\\boxed{\pink{\bf \implies g(x) = 1 - x^2}}$

Hence option B is correct .

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3 years ago

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