3 years ago

Which point is the reflection of (2,-5) on the

Mathematics

1 answer:

Ivahew [28]3 years ago

7 0

A reflection in the y-axis will reverse the x values but not change the y value
The answer is D. (-2,-5)

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Natasha_Volkova [10]

Answer:

Step-by-step explanation:

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3 years ago

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28. Kay is saving $200 a month into an account earning 5% interest. How long will it

musickatia [10]

Step-by-step explanation:

Accumulated value = $20,000.

A = P + I, P = principal, I = Interest.

I = 200*5*t/100

I = 1000t/100 = 10t

2000 = P + I = 200 + 10t

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1800 = 10t, t = 180.

Therefore, it would take her 180 years to save $20,000.

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4 years ago

Given that f(x) = x2 + 5x + 6 and g(x) = x + 2, find (fºg)(x) and

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Answer:

$(f\circ g)(x)=x^2+9x+20$

Step-by-step explanation:

We have the two functions:

$f(x)=x^2+5x+6\text{ and } g(x)=x+2$

And we want to find:

$(f\circ g)(x)$

This is equivalent to:

$(f\circ g)(x)=f(g(x))$

Therefore, we will have:

$f(x+2)$

By substitution:

$f(x+2)=(x+2)^2+5(x+2)+6$

Simplify. Square and distribute:

$f(x+2)=(x^2+4x+4)+(5x+10)+6$

Rearrange:

$f(x+2)=(x^2)+(4x+5x)+(4+10+6)$

Combine like terms:

$f(x+2)=(f\circ g)(x)=x^2+9x+20$

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3 years ago

I don’t know how to do this ?

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All you need to do is draw the picture of what is happening

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3 years ago

During a long weekend, Devon paid a total of x dollars for a rental car so he could visit his family. He rented the car for 7 da

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Answer:

a. Letting m represent the number of additional miles driven, we have .35m.

b. Devon paid $43 for additional mileage.

Step-by-step explanation:

For part b: $421 - ($54 × 7)

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2 years ago