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dmitriy555 [2]
3 years ago
9

Reggie drove his race car 4 times around the track for a total of 10 miles. How many kilometers did he drive? (Note that 1 mile

= 1.61 kilometers.) Reggie drove kilometers.
Mathematics
2 answers:
Pavlova-9 [17]3 years ago
6 0

Answer: 16.1 kilometers

Step-by-step explanation:

He drove a total of 10 miles, 1 mile=1.61 kilometers

1.61 kilometers x 10 = 16.1 kilometers

Allushta [10]3 years ago
3 0

Answer:

16.1 km

Step-by-step explanation: 10mi x 1.61=16.1km

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Two inches is approximately _____. 10 cm 5 cm 500 mm .5 m
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Write an equation of the perpendicular bisector of the line segment whose endpoints are (−1,1) and (7,−5)
icang [17]

The equation is y = \frac{3}{2} x - \frac{11}{2}

<u>Explanation:</u>

We have to first find the mid-point of the segment, the formula for which is

(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2} )

So, the midpoint will be (\frac{-1+7}{2} , \frac{1-5}{2} )\\\\

                                  = (3,-2)

It is the point at which the segment will be bisected.

Since we are finding a perpendicular bisector, we must determine what slope is perpendicular to that of the existing segment. To determine the segment's slope, we use the slope formula \frac{y_2-y_1}{x_2-x_1}

The slope is \frac{-5-1}{7+1} = -\frac{2}{3}

Perpendicular lines have opposite and reciprocal slopes. The opposite reciprocal of  -\frac{2}{3} is \frac{3}{2}

To write an equation, substitute the values in y = mx + c

WHere,

y = -1

x = 3

m = 3/2

Solving for c:

-1 = \frac{3}{2} X 3 + c\\\\-1 = \frac{9}{2}+c\\ \\c = \frac{-2-9}{2} \\\\c = \frac{-11}{2}

Thus, the equation becomes:

y = \frac{3}{2} x - \frac{11}{2}

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3 years ago
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EastWind [94]

Answer:

646.04 cm³

Step-by-step explanation:

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<u>Hemisphere volume formula:</u>

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<u>Add both together</u>

128/3 + 512 ≈ 646.04cm³

4 0
3 years ago
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