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2 years ago

B) Is the relation a function? Use the vertical line test to decide.

Mathematics

1 answer:

Sedaia [141]2 years ago

8 0

Answer:

Step-by-step explanation:

The answer is A U just did that on Khan academy

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On April 11, 2012, two earthquakes were measured off the northwest coast of Sumatra. The first had a magnitude of 8.6. The secon

Hoochie [10]

Answer:

Option D. 2.51 is correct.

Step-by-step explanation:

Magnitude of first earthquake = 8.6

Let intensity of first earthquake be x

$Magnitude = \log(\frac{x}{S}),\text{ where S is seismographic factor}\\\\\implies 8.6=\log(\frac{x}{S}).......(1)$

Magnitude of second earthquake = 8.2

Let intensity of second earthquake be y

$Magnitude = \log(\frac{y}{S}),\text{ where S is seismographic factor}\\\\\implies 8.2=\log(\frac{y}{S}).......(2)$

Now, to find the factor by which intensity of first earthquake is greater than intensity of second : we divide equation (1) by equation (2)

$\implies\log(\frac{x}{y})=8.6 - 8.2\\\\\implies \log(\frac{x}{y})=0.4\\\\\implies\frac{x}{y}=10^{0.4}\\\\\implies\frac{x}{y}=2.51$

Hence the required factor is 2.51

Therefore, Option D. 2.51 is correct.

4 0

2 years ago

a recipe calls for 2/3 of a cup of milk for 12 cookies how many cups of milk are needed to make 180 cookies

VashaNatasha [74]

Answer:

10 Cups of Milk

Step-by-step explanation:

2/3 cup of milk --->10 cookies

x cup of milk --->150 cookies

x=((2/3)*150)/10=(2/3)*15=10 cups of milk

8 0

2 years ago

The length of Rebecca’s rectangular garden was two times the width “w”. She increased the length and width of the garden so that

Damm [24]

Answer:

rebecca increased the length by 3 and the width by 2

Step-by-step explanation:

First we need to find the length and width by factorizing the expressio ofr the area;

A = 2w^2+7w+6

A = 2w^2+4w+3w+6

A = 2w(w+2)+3(w+2)

A = (2w+3)(w+2)

Since l = 2w

Length = 2w+3

width = w+2

This shows that rebecca increased the length by 3 and the width by 2

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2 years ago

Skeleton practices playing spooky music on his piano he practice 60 minutes every single day how many hours does skeleton play i

k0ka [10]

He plays for 14 hours

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2 years ago

How old will Susan be 5 years from now?

zhenek [66]

I think you forgot to mention Susan's current age if not:

x+5

x-4

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2 years ago