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Sati [7]
3 years ago
14

Katrina said that the lines y=-2/3x + 5 and y = -3/2x + 2 are perpendicular. Explain Katrina's error.

Mathematics
2 answers:
Elis [28]3 years ago
8 0

There shouldn't be a negative in front of one of the equations.

Vika [28.1K]3 years ago
7 0

Answer:

product of gradients of the two lines = 1 does not imply the lines being perpendicular, the product of gradients have to instead be equal to -1.

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Compare the dimensions of the prisims. How many time greather is the surface area of the red prism than the surface area of the
SVEN [57.7K]

Answer:

Step-by-step explanation:

To get from blue to red you need to multiply the blue dimensions by 1.5.

4*x = 6       Divide by 4

x = 6/4

x = 1.5

The surface area is a different ball game.

SA of the blue figure

Surface area of 1 side = 4 *  4 = 16

The total surface area = 16* 6 = 96

SA of the red figure

Surface area of 1 face = 6*6

Surface area of  6 faces = 6 * 36 = 216

So what's the ratio ?

Ratio = red surface area/ blue surface area

Ratio = 216 / 96 = 2.25

Notice that if you square the dimensional ratio, you get the area ratio

1.5^2 = 2.25

4 0
2 years ago
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adell [148]

Answer:

0 gallon

Step-by-step explanation:

Given: 1 gallon per mile

total amount = 3000 gallons

capacity of truck = 1000 gallons

total number of trips = 3000/1000 = 3

total oil to reach the destination = 3000-3000=0

I hope this helps.

3 0
2 years ago
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NARA [144]
4) Answer is D.
Irrational numbers cannot be classified as rational numbers

5) Answer is B.
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4 years ago
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bija089 [108]

Answer:

D.

Step-by-step explanation:

The domain remains the same [a, b) and the range  is [mc + n,md + n).

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Solve for b.<br> 3b &lt; 9<br> 23<br> Submit
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Answer:

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Step-by-step explanation:

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