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scoundrel [369]
3 years ago
10

The function f is defined by f(x)=x^2-5 find f(2y)

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
4 0
\bf f(x)=x^2-5\qquad \qquad f(2y)=(2y)^2-5\implies f(2y)(2^2y^2)-5
\\\\\\
f(2y)=4y^2-5
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2/3A=-24 <br><br> this the last one that I need help on.
pychu [463]
You can answer this question in numerous ways but one simple way is by multiplying fractions. 

<span>2/3 of 24 is also 2/3 of 24/1 </span>
<span>To get the answer, you must multiply 2/3 by 24/1 </span>

<span>To do this, you multiply the numerator (the top number) by the other numerator. That is, 2 x 24 . The answer is 48. </span>

<span>Then, multiply the denominators (the bottom numbers) by each other. That is, 3 x 1. The answer is 3. </span>

<span>The answer is 48/3. But you must continue simplifying. </span>

<span>What is 48 divided by 3? 16. </span>

<span>If you do not understand it that way, think of it in a simpler way. </span>

<span>Say there are 24 slices of pieces. </span>

<span>What is one third of those 24 slices? </span>

<span>24 divided by 3 = 8. </span>

<span>Now you want TWO thirds. So all you do is multiply 8 by 2. </span>

<span>That gives you 16. 
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I hope i helped, and, if so, please mark as brainliest :P
3 0
3 years ago
Read 2 more answers
Please help ASAP !!!!!
shusha [124]

Answer:

Step-by-step explanation:

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8 0
3 years ago
Kim is trying to save at least $450. She has already saved $75. She can babysit for $5 an hour. How many hours does Kim need to
larisa [96]

Answer:

70 hours.

Step-by-step explanation:

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7 0
3 years ago
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MakcuM [25]

Answer:

(0,0)

Step-by-step explanation:

Y = 2x is a <u>proportional</u> relationship because it follows the form y = kx, where k = constant of proportionality. Proportional relationships intersect the y-axis at (0,0), thus having a y-intercept of 0, but we usually don't write the 0.

Given the information above, y = 2x intersects the y-axis at (0,0), the origin.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

6 0
2 years ago
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lora16 [44]

Answer:

A few ways are:

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6 0
3 years ago
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