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3 years ago

The slopes of vertical lines and horizontal lines are opposite reciprocals

Mathematics

2 answers:

Nitella [24]3 years ago

5 0

True! The slopes are opposite reciprocals (aka perpendicular lines)

Scrat [10]3 years ago

5 0

This is true slopes are vertical and horizontal lines are opposite reciprocals.

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Given the information in the diagram below, what is the measure of LBEC?

liraira [26]

Answer: angle BEC = 43 degrees

Step-by-step explanation:

Straight angle = 180 degrees

75 + 62 = 137

180 - 137 = 43

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2 years ago

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An alloy weighing 40 lbs. is 10% tin. The alloy was made by mixing a 15% tin alloy and a 8% tin alloy. How many pounds of each a

Mice21 [21]

X=15% alloy
y=8% alloy
x+y=40
y=40-x
0.15x+0.08y=40*0.10
0.15x+0.08(40-x)=40*0.1
times 100 both sides for easy
15x+8(40-x)=400
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aprox
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11.4lb of 15%
28.6lb of the 8%
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3 years ago

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Which value of x would make NO II KJ? 1 6 8 10

frez [133]

We sketch the two similar shapes and they are as shown in the attachment. We want to write corresponding side's length in ratio

$LN : LK = x-3 : (x-3+x+2) = (x-3) : (2x-1)$
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Writing the two ratio as fraction gives
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Cross multipliying gives $(x-3)(2x-4)=(x-4)(2x-1)
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3 years ago

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Molodets [167]

Answer:

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Step-by-step explanation:

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3 years ago

The tree diagram represents an experiment consisting of two trials.

Afina-wow [57]

Answer:

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Step-by-step explanation:

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