3 years ago

I need help with Algebra. is this a good site?

Mathematics

1 answer:

forsale [732]3 years ago

7 0

Answer:

Yes! I use this site all the time and my questions always get answered quickly!

Step-by-step explanation:

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Given the parent function

yanalaym [24]

Answer:

Option a is right.

Step-by-step explanation:

Parent funciton is

$f(x) = x^3$

The new graph is

$f(x) = -2x^3$

Since there is no change for x, there is no horizontal shift.

BUt since sign is changed there is a reflection on the line y=0 i.e. x axis.

Also new y is -2x^3 , -2 indicates the vertical shrink by scale factor 1/2

Option a is right

i.e. there is a reflection on x axis also there is a compression of scale factor 2 vertically.

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3 years ago

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yKpoI14uk [10]

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$507

Step-by-step explanation:

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-2x+y=1 and y=-x+4 What is x?

Vikentia [17]

When -2x+y=1 and y=-x+4, x = 1

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3 years ago

After 3.5 hours ,pasha had traveled 217 miles if she travels at the constant speed how far will she have travelled after 4 hours

vesna_86 [32]

Answer:

248 miles

Step-by-step explanation:

we know that

After 3.5 hours ,Pasha had traveled 217 miles

using proportion

Find out how many miles she will have traveled after 4 hours

$\frac{3.5}{217}\ \frac{hours}{miles}=\frac{4}{x}\ \frac{hours}{miles}\\\\x=217(4)/3.5\\\\x=248\ miles$

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3 years ago

I need help with Algebra. is this a good site?​

I need help with Algebra. is this a good site?