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3 years ago

Please help I’m vvv confused

Mathematics

2 answers:

Triss [41]3 years ago

7 0

Equation is y=kx. We have four chance to figure out k; hopefully they all give the same result

x=9, y=63, y=kx becomes 63=k(9) so k=63/9=7

x=4, y=28, 28=k(4), k=7

The constant of proportionality is 7; we check 2×7=14, 11×7=77

Answer: k=7, y=7x

andriy [413]3 years ago

7 0

Answer:

y=kx

y=k(7)x

y=7x(11)

y=7*11

y=77

Step-by-step explanation:

So with useing the equation that I used the porportional relationship is 7 so just fill 7 in for k. Then take the x number and fill it in for x. you will then multiply and get the y value.

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<h2>Answer:</h2>

(a)

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(b)

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(c)

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<h2>Step-by-step explanation:</h2>

We are given a function f(x) as :

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(a)

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We will substitute (x+h) in place of x in the function f(x) as follows:

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(b)

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$f(x+h)-f(x)=8x+8h+3-(8x+3)\\\\i.e.\\\\f(x+h)-f(x)=8x+8h+3-8x-3\\\\i.e.\\\\f(x+h)-f(x)=8h$

(c)

$\dfrac{f(x+ h)-f(x)}{h}$

In this part we will divide the numerator expression which is obtained in part (b) by h to get:

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AleksandrR [38]

Answer:

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After 1 hours, the amount of bacteria increased: 1800/5=360

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