3 years ago

Triangle ABC has vertices at A(-1,1), B(-7,1), and C(-3,6). What is the area of Triangle ABC?

Mathematics

1 answer:

AURORKA [14]3 years ago

6 0

Answer:

I think the answer is b

Step-by-step explanation:

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The 3 is in the tenths place

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Chocolates costing $8 per pound are to be mixed with chocolates costing $3 per pound to make a 20-pound mixture. If the mixture

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8 is the correct answer i think I'm not really sure

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2 years ago

Daniel is completing a home project. He needs 13 pieces of wood, each 112 feet long, to complete the project. How much wood does

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The straight line joining the points A(3,-5) and B(6,k) has a gradient of 4. Work out the value of k.

BaLLatris [955]

The straight line joining the points A(3,-5) and B(6,k) has a gradient of 4.

Gradient is the slope

So the slope of the line joining the points A(3,-5) and B(6,k) is 4

Slope of line joining two points = $\frac{y_2-y_1}{x_2-x_1}$

A(3,-5) and B(6,k) are (x1,y1) and (x2,y2)

slope = $\frac{y_2-y_1}{x_2-x_1}$

slope = $\frac{k-(-5)}{6-3}=\frac{k+5)}{3}$

We know slope =4

$\frac{k+5)}{3}=4$

Cross multiply and solve for k

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3 years ago

Jayden measured a community college and made a scale drawing. He used the scale 22 millimeters : 9 meters. The actual length of

juin [17]

Hey there! :)

Answer:

x = 242 mm.

Step-by-step explanation:

Begin by setting up a proportion between the actual college building and the drawing.

$\frac{22mm}{9m} = \frac{x}{99m}$

Cross multiply:

99 × 22 = 9 × x

2178 = 9x

Divide both sides by 9:

2178/9 = 9x/9

x = 242 mm.

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3 years ago