3 years ago

Round these decimals to I decimal place

Mathematics

2 answers:

Phoenix [80]3 years ago

5 0

A. 3.5

B. 6.9

C. 1.4

D. 42.3

E. 79.1

F. 8.9

garri49 [273]3 years ago

5 0

3.50 6.90 1.40 42.30 79.20 8.90 15.40 61.80 59.30 165.60

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9 more than y is an expression so it would be 9+y

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kirill [66]

Answer:

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Step-by-step explanation:

$x^{2} -2x-4=0$
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FINAL ANSWER

$x=1+\sqrt{5} , 1-\sqrt{5}$

In Decimal Form (Rounded to 3 significant figures)

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago

Help with #9 please?

nekit [7.7K]

We're given a parabola

$y=x^2-4$

and a line

$y = 2x+b$

The zeros of the parabola are

$0=x^2-4$

$4=x^2$

$x=\pm 2$

We see that (-2,0) is on the line as well:

$y = 2x+b$

$0 = 2(-2)+b$

$b=4$

Choice D

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3 years ago