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3 years ago

The table shows the number of hours that Kaitlyn worked last week.

Mathematics

1 answer:

Inessa05 [86]3 years ago

6 0

Answer:

Step-by-step explanation:

5 1/2 , 6 3/4 , 4 2/3

Convert to decimals

5.5 , 6.75 , 4.67

Add

16.92

She worked 16.92 hours

Convert to mixed fraction

Hope this helps :)

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Factorize this expression completely <br>using (a-b)² formula<br>3a²- 36a + 108

Novosadov [1.4K]

Answer:

$3a^2 - 36a + 108 = (\sqrt{3}a - 6\sqrt{3} )^2$

Step-by-step explanation:

$3a^2 = (\sqrt{3} a)^2\\108 = 9 \times 4 \times 3= 3^2 \times 2^2 \times 3 = (3\times2 \sqrt{3} )^2 = (6\sqrt{3})^2$

$so, a = \sqrt{3} a \ , \ b = 6\sqrt{3} \\\\(a - b)^2 = a^2 -2ab + b^2\\\\-36a = -2ab\\\\-36a = -2 \times \sqrt{3} a \times 6\sqrt{3}$

Therefore ,

$3a^2 - 36a + 108 = (\sqrt{3}a )^2 - 2(\sqrt{3}a \times 6\sqrt{3} ) + (6\sqrt{3} )^2 = (\sqrt{3}a - 6\sqrt{3} )^2$

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3 years ago

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Alex_Xolod [135]

Step-by-step explanation:

the area of a triangle is always

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7 × 2 / 2 = 7 × 1 = 7 units²

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Ainat [17]

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Step-by-step explanation:

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How to find 4x=14y and if it is parallel, perpendicular or neither to -2x+7y=14

RUDIKE [14]

4x = 14y
y = 4/14(x)
y = 2/7(x) slope = 2/7

<span>-2x+7y=14
7y = 2x + 14
y = 2/7(x) + 2 slope = 2/7

parallel lines, slope is the same
both lines have slopes equal 2/7

answer
</span><span>parallel</span>

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