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3 years ago

14

Please help me with these questions!!!!!!

1 answer:

BartSMP [9]3 years ago

4 0

Step-by-step explanation:

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A train traveled 399 miles in 7 hours. Find the train's speed.

GrogVix [38]

The train is traveling at 57 miles per hour.

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3 years ago

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What is the midpoint between the points (1, 4) and (-3, 2)?

emmasim [6.3K]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ 1}}\quad ,&{{ 4}})\quad 
% (c,d)
&({{ -3}}\quad ,&{{ 2}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)
\\\\\\
\left(\cfrac{{{ -3}} + {{ 1}}}{2}\quad ,\quad \cfrac{{{ 2}} + {{ 4}}}{2} \right)$

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4 years ago

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Find the quotient 7/9 divided by 5/6

Blizzard [7]

7/9 divided by 5/6 = 14/15
in decimal for it would be 0.93

3 0

3 years ago

Which of the following rational expressions has the domain restrictions X = -6 and x = 1?

Tcecarenko [31]

The domain of the function is possible values of independant varaible such that function is defined or have real values.

So the expression

$\frac{(x+2)(x-3)}{(x-1)(x+6)}$

is not defined for x = -6 and for x = 1, as expression becomes undefined for this values of x (Denominator becomes 0).

So answer is,

$\frac{(x+2)(x-3)}{(x-1)(x+6)}$

Option B is correct.

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1 year ago

A horseback rider travels 2 miles in 12 minutes. At this speed, how long does it take to travel 5 miles?

CaHeK987 [17]

Divide the time he traveled by the distance to find how fast he travels 1 mile, then multiply that by 5 miles:

12 minutes / 2 miles = 6 minutes per mile.

6 minutes per mile x 5 miles = 30 total minutes.

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4 years ago