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2 years ago

6

4) A safe contains 120 coins, the value of which is $10. If the coins consist of nickels and dimes, how many of each kind are in

it?

1 answer:

alexandr1967 [171]2 years ago

8 0

There are 40 nickels and 80 dimes

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3 years ago

The sum of three numbers is 110. The third number is 4 times the second. The first number is 10 less than the second. What are t

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2 years ago

Which function represents a reflection of f(x) = Three-sevenths(2)x over the x-axis?

NemiM [27]

<u>Given:</u>

The given function is $f(x)=\frac{3}{7}(2)^{x}$

We need to determine the reflection of f(x) over the x - axis

<u>Reflection over x - axis:</u>

The translation rule to reflect over the x - axis is given by

$(x, y) \rightarrow(x,-y)$

Reflecting the function over the x - axis, we get;

$-y=\frac{3}{7}(2)^{x}$

Multiplying -1 to both sides of the equation, we have;

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This can be written as

$g(x)=-\frac{3}{7}(2)^{x}$

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Thus, Option A is the correct answer.

9 0

2 years ago

Read 2 more answers