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Leni [432]
3 years ago
12

The domain of y=log(9-x^2),xER, is

Mathematics
1 answer:
jasenka [17]3 years ago
3 0

Step-by-step explanation:

log(z) is defined when z > 0.

For log(9 - x²) to be defined, we have 9 - x² > 0.

=> x² < 9, -3 < x < 3.

The domain of y = log(9 - x²) is (-3,3).

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Answer:

2x'2-3x-12

Step-by-step explanation:

(x-4) (2x+3)

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2x'2-3x-12

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5 0
3 years ago
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In April, Phillipa rode 13.5+8.7+11.1 miles on her bicycle. In March, she rode ( 13.5 + 8.7 + 11.1) ÷ 2 miles, and in May, she r
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3 years ago
Sam the Hummingbird flies at a rate of 2 yards per minute, as modeled by the equation y = 2x. She
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Answer:

See attachment for plot

Step-by-step explanation:

Given

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m =2

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y = 4x

<u>The plot at 1 and 2 minutes</u>

When x = 1

y = 4x = 4 * 1 = 4

When x = 2

y = 4x = 4 * 2 = 8

So, we have:

(x_1,y_1) =(1,4)

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<em>See attachment for plot</em>

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3 years ago
In a parallelogram ABCD point K belongs to diagonal BD so that BK:DK=1:4. If the extension of AK meets BC at point E, what is th
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Answer:

\frac{BE}{EC} =\frac{1}{3}

Step-by-step explanation:

In the diagram below we have

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\frac{BK}{CK} =\frac{1}{4}

And AK meets BC at E

now in Δ AKD and Δ BKE

∠AKD =∠BKE                ( vertically opposite angles are equal)

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By angle angle (AA) similarity theorem

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\frac{EC}{BE}=\frac{3}{1}

taking reciprocal both side

\frac{BE}{EC} =\frac{1}{3}


8 0
3 years ago
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Step-by-step explanation:

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3 years ago
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