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3 years ago

Does anyone know the right set up for this equation?

Mathematics

2 answers:

miss Akunina [59]3 years ago

8 0

I havent done this in a while, but i believe you substitute the variable (x). It says x=.75, so you would put f(x)=7(.75)

attashe74 [19]3 years ago

5 0

5.15 Is the value of the equation

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At maximum speed, an airplane travels 2,400 miles against the wind in 6 hours. Flying with the wind, the plane can travel the sa

Hatshy [7]

X - y = 2400/6 = 400 where x = speed of plane and y = speed of wind.

x + y = 2400/5 = 480 - flying with the wind

adding the 2 equations
2x = 880
x = 440

Speed of the plane with no wind = 440 mph

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3 years ago

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On the first week of class, Lisa reads 45 pages in her history book. It takes her 8 minutes to read. The next week she reads 36

vagabundo [1.1K]

Answer:

I wanna say C not positive but I think C

Step-by-step explanation:

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3 years ago

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Find the area of the circle below???

olga55 [171]

Answer:

Area of the circle = $24.618\,feet^2$

Step-by-step explanation:

Radius of the circle= $2.8\,feet$

Area of the circle= $\pi \times r^2$

As,

$\pi =\dfrac{22}{7} =3.14$

Area of the circle is:

$=3.14\times 2.8 \times 2.8\\\\= 3.14 \times 7.84\\\\=24.618\,feet^2$

The Area of the circle is : $24.618\,feet^2$

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3 years ago

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What is<br> a-7=21 it’s for class obviously

arlik [135]

Answer:

Step-by-step explanation:

7+21=28

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3 years ago

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the number y of calories burned after x hours of rock climbing is represented by the linear function y=650x find the domain , is

Flauer [41]

Answer:

The domain is discrete

Step-by-step explanation:

Given

$y = 650x$

Required

What type of domain is it?

<em>Based on the given options, the domain is continuous.</em>

From the question, we understand that x represents the hours spent in climbing the rock.

The climber can decide to climb for 1 hour, 2 hours, ½ hour, ⅓ hour, ¼ hour, etc..

A domain is said to be discrete if it can only take integers (i.e. whole numbers), if otherwise, it is continuous;

So, since x is not limited to only whole numbers, then we can conclude that the domain of x is continuous

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3 years ago