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2 years ago

If 18,x+15,27 and 2x+7 are in proportion,find the value of x

Mathematics

1 answer:

ludmilkaskok [199]2 years ago

7 0

Step-by-step explanation:

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pasensya na god bless!!!!

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Same thing as last. nearest 100th

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Answer:

452.39 mi^2

Step-by-step explanation:

A = πr^2

A = π (12mi)^2

A = 452.39 mi^2

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A gym instructor has a total of 60 hand weight in her studio. Some of the hand weights are 3 pound weights and the rest are 5 po

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Answer:

35 5-lb weights
25 3-lb weights

Step-by-step explanation:

Let t and f represent the numbers of three- and five-pound weights. The problem statement tells us ...

f + t = 60

f - t = 10

Adding these two equations, we get ...

(f +t) +(f -t) = (60) +(10)

2f = 70 . . . . . eliminate parentheses

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She has 35 5-lb weights, and 25 3-lb weights.

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3 years ago

How to do this? (#21 and #23)

Readme [11.4K]

Answer:

$\large\boxed{21.\ g(x)=f(x-2)+1\to g(x)=\log_3(x-2)+1}\\\\\boxed{22.\ g(x)=f(x)-4\to g(x)=3^x-4}\\\\\boxed{23.\ g(x)=-f(x)\to g(x)=-\log_{\frac{1}{2}}x}$

Step-by-step explanation:

f(x) + n - shift the grapf n units up

f(x) - n - shift the grapf n units down

f(x + n) - shift the grapf n units to the left

f(x - n) - shift the grapf n units to the right

-f(x) - reflection about the x-axis

f(-x) - reflection about the y-axis

============================================

Look at the picture.

$21.\\f(x)=\log_3x\\\\g(x)=\log_3(x-2)+1$

move the graph 2 units to the right and 1 unit up

$22.\\f(x)=3^x\\\\g(x)=3^x-4$

move the graph 4 units down

$23.\\f(x)=\log_{\frac{1}{2}}x\\\\g(x)=-\log_{\frac{1}{2}}x$

reflection the graph about the X axis.

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2 years ago

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