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lisabon 2012 [21]

3 years ago

12

Erica rode her bike for 5 hours last week. This week, she did not ride her bike. How many hours did she ride her bike in the pas

t two weeks?

1 answer:

jeyben [28]3 years ago

6 0

Erica rode her bike for five hours in the pas two weeks.

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What type of triangle has only two congruent sides?

grandymaker [24]

Answer: A triangle that only has two congruent sides is called an isosceles triangle. Two equal sides and two equal angles.

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2 years ago

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NEED HELP WITH THIS PLSSS!!!!

rewona [7]

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What are the coordinates of the centroid of a triangle with vertices P(−4, −1) , Q(2, 2) , and R(2, −3) ?

Alenkasestr [34]

Answer:

$(x,y)=(0,\frac{-2}{3})$

Step-by-step explanation:

Given : Vertices of Triangle $P(x_1,y_1)=(-4,-1)$ , $Q(x_2,y_2)=(2, 2)$ and $R(x_3,y_3)=(2,-3)$

To find : Centroid of a triangle

The centroid of a triangle is the point of intersection of the three medians of the triangle.

The formula to calculate the centroid of a triangle is:

$(x,y)=(\frac{x_1+x_2+x_3}{3},\frac{y_1+y_2+y_3}{3})$

Where, $x_1,x_2,x_3,y_1,y_2,y_3$ are the coordinates of the centroid

Substituting the values in the formula gives us:

$(x,y)=(\frac{x_1+x_2+x_3}{3},\frac{y_1+y_2+y_3}{3})$

$(x,y)=(\frac{-4+2+2}{3},\frac{-1+2-3}{3})$

$(x,y)=(\frac{0}{3},\frac{-2}{3})$

Therefore, $(x,y)=(0,\frac{-2}{3})$

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3 years ago

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6(X - 2) = -48<br><br> Find x

Darya [45]

Answer:

6x-12=-48

6x=-36

x=-6

Step-by-step explanation:

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2 years ago

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Quadratic equations of the form _____ can be solved using square roots

icang [17]

Answer:

Step-by-step explanation:

Quadratic equations of the form (x - h)^2 + k = 0 can be solved using square roots: Take the square root of both sides, prefacing the right side with " ± "

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3 years ago