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3 years ago

A person runs 1/7 mile in 1/56 hour.The person's speed is miles per hour.

Mathematics

2 answers:

Oduvanchick [21]3 years ago

8 0

1 minute 8.25 seconds per mile

pav-90 [236]3 years ago

4 0

Hey

So after we do all the math we get 1 minute 8.25.

hope l helped u

have a good day
im out

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creativ13 [48]

The correct answer is 4090

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2 years ago

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denis-greek [22]

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3 years ago

Which function is the inverse of f(x) = –5x – 4?

Finger [1]

Answer:

f^(-1)(x) = \frac{-1}{5} (x+4)

Step-by-step explanation:

Given is a function

$f(x) = -5x-4\\$

To find its inverse.

We must check whether f is one to one or onto first

If -5x1-4 = -5x2-4 we get x1=x2

Hence f is one to one

Also for every f(x) we can find a x so f is onto.

So inverse exists

Let

$y=-5x-4\\-5x=y+4\\x=\frac{-1}{5} (y+4)$

Replace x by f inverse and y by x

$f^(-1)(x) = \frac{-1}{5} (x+4)$

7 0

3 years ago

Simplify the expression 7 times 3g

yKpoI14uk [10]

The answer is 21g hope this helps :)

4 0

3 years ago

Read 2 more answers

Hey Mahfia, please help! Find an equation in standard form for the hyperbola with vertices at (0, ±10) and asymptotes at

Dafna1 [17]

Answer:

$\huge\boxed{ \red{ \boxed{ \tt{ \frac{ {y}^{2} }{ {10}^{2} } - \frac{ {x}^{2} }{ {12}^{2} } = 1}}}}$

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

conic sections
PEMDAS

<h3>tips and formulas:</h3>

$\sf hyperbola \:equation : \\ \sf \frac{ {x}^{2} }{ {a}^{2} } - \frac{ {y}^{2} }{ {b}^{2} } = 1$
vertices of hyperbola:(±a,0) and (0,±b) if reversed
$\sf \: asymptotes : \\ y = \pm\frac{b}{a} x$

<h3>given:</h3>

vertices: (0,±10)
the hyperbola equation is inversed since the vertices is (0,±10)
asymptotes: $\pm \frac{5}{6}x$

<h3>let's solve:</h3>

the asymptotes are in simplest and we know b is ±10

according to the question

$y = \sf \frac{5 \times 2}{6 \times 2} x \\ y = \frac{10}{12} x$

therefore we got

a=12
b=10

note: the equation will be inversed

let's create the equation:

$\sf substitute \: the \: value \: of \: a \: and \: b : \\ \sf \frac{ {y}^{2} }{ {10}^{2} } - \frac{ {x}^{2} }{ {12}^{2} } = 1$

3 0

3 years ago