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2 years ago

F(n) =5n + 8 when writing a mini prove what first step in evaluating f(-2)

Mathematics

1 answer:

denpristay [2]2 years ago

6 0

Hope it helps you
Please mark it as brainliest

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The input is 8 and the output is 26 what's the rule?

LuckyWell [14K]

Answer:

It could either be x * 3.25 or x + 18

Step-by-step explanation:

8 * 3.25 = 26

8 + 18 = 26

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2 years ago

Shoe sizes and foot length are related by the formula S = 3F - 24, where S represents the shoe size and F represents the length

eimsori [14]

Answer:

$\dfrac{S + 24}{3}$

Step-by-step explanation:

$\begin{array}{rcll}S & = & 3F - 24&\\S + 24 & = & 3F&\text{Added 24 to each side}\\F & = &\mathbf{\dfrac{S + 24}{3}}&\text{Divided each side by 3}\\\\\end{array}$

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3 years ago

A plane flies 450 miles with the wind, and 350 miles against the wind (in the same amount of time). If the wind is blowing at 30

adell [148]

Answer: = 240 mph.

Step-by-step explanation:

Let x = speed of the plane.

t= time taken

As per given, we have

$t=\dfrac{450}{x+30}\ \ \ ...(i)\\\\ t=\dfrac{350}{x-30}\ \ \ ...(ii)$ [Time = distance / speed]

From (i) and (ii), we get

$\dfrac{450}{x+30}=\dfrac{350}{x-30}\\\\\Rightarrow\ 450(x-30)=350(x+30)\\\\\Rightarrow\ 450x-13500=350x+10500\\\\\Rightarrow\ 450x-350x=10500+13500\\\\\Rightarrow\ 100x=24000\\\\\Rightarrow\ x=240$

Hence, the speed of the plane = 240 mph.

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2 years ago

Please help!!!! Consider the region shaded in yellow. Which inequality does the shaded region correspond to?

denis-greek [22]

Answer:

y-x-1 < 0

Step-by-step explanation:

according to the graph (0,1) and (-1,0) lies on the doted line,

equation of the dotted line is y-x-1=0

shaded region = y-x-1 < 0

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1 year ago

Please helpp!!!! I need it right now!!!!!!

marta [7]

Because the image is two reflected triangles, the sides will be the same meaning ∆ AMC ≈ ∆ BMC must be true. M is also the same for both, due to it being the reflected side.

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3 years ago

F(n) =5n + 8 when writing a mini prove what first step in evaluating f(-2)​

F(n) =5n + 8 when writing a mini prove what first step in evaluating f(-2)