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3 years ago

Thats my question down there mates

Mathematics

2 answers:

Law Incorporation [45]3 years ago

7 0

Answer:

x = 9

Step-by-step explanation:

A line segment parallel to a side of a triangle and intersecting the other 2 sides divides the 2 sides in proportion, that is

$\frac{9}{72}$ = $\frac{1}{8}$ = $\frac{3x-20}{56}$ ( cross- multiply )

8(3x - 20) = 56

24x - 160 = 56 ( add 160 to both sides )

24x = 216 ( divide both sides by 24 )

x = 9

Gnom [1K]3 years ago

3 0

Answer:

The value of x = 9

Step-by-step explanation:

From the figure

we can see that, the middle line segment is parallel to one side of the triangle.Therefore we can write,

9/72 = (3x - 20)/56

9*56 = 72(3x -20) [cross multiplying]

56 = 8(3x - 20) [divided by 9]

7 = 3x - 20 [divided by 8]

3x - 20 = 7

3x = 27

x = 27/3 = 9

Therefore the value of x = 9

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Find the midpoint of the line segment with the given endpoints: (-1, -6) and (-6, 5).

Vikentia [17]

Answer:

Step-by-step explanation:

First, we will find the midpoint for the x - coordinate first.

Midpoint (x) = $\frac{-1+(-6)}{2} \\=\frac{-1-6}{2} \\=\frac{-7}{2} \\=-3.5$

Now we will find the midpoint for the y - coordinate.

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Therefore from these 2 values we know that the midpoint of this 2 points is (-3.5,-0.5)

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

The winner of a 100 mile race drove his car to victory at a rate of 120.1229 mph. What was his time to the nearest thousandth of

Zigmanuir [339]

Answer:

$t=1.201\ \text{hour}$

Step-by-step explanation:

Given that,

Distance, d = 100 mile

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$v=\dfrac{d}{t}\\\\t=\dfrac{d}{v}\\\\t=\dfrac{120.1229}{100 }\\\\t=1.201229\ \text{hour}\\\\\text{Round to the nearest thousandth}\\\\t=1.201\ \text{hour}$