3 years ago

Which expression is equivalent to - x/y

Mathematics

1 answer:

Vika [28.1K]3 years ago

5 0

Answer:

${ \sf{ = - (\frac{y}{x}) {}^{ - 1} }}$

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Find (f ∘ g)(4) when f(x) = -5x - 7 and g(x) = -6x 2 + 9x + 9.

mr_godi [17]

Answer:

$\boxed{\sf \ \ \ 248 \ \ \ }$

Step-by-step explanation:

Hello,

$(fog)(4)=f(g(4)) \ \ \ and \ \ \ g(4)=-6*4^2+9*4+9=-51 \ \ so\\(fog)(4)=f(-51)=-5*(-51)-7=255-7=248$

hope this helps

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3 years ago

3.5d + 6.25 = 1 + 5.25d<br><br> The solution is d =

vodka [1.7K]

Answer:

d = 3

Step-by-step explanation:

3.5d + 6.25 = 1 + 5.25d

5.25d - 3.5d = 6.25 - 1

1.75d = 5.25

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3 years ago

What is the equation of the line that passes through (-3,-1) and has a slope of 3/5 in slope intercept?

andrew-mc [135]

Answer is Y=3/5x + 4/5

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3 years ago

A circular swimming pool is 21 feet in

AveGali [126]

Answer:

66 feet

Step-by-step explanation:

Mayra wants to place tiles on the edge of pool, i.e, on the circumference of the circular part

so the length required will be ,2πr

radius=21/2 feet=10.5feet

now req lenght = (2π10.5)=66 (feet)

3 0

3 years ago

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What is the explict formula for this sequence 5, 10, 20, 40, 80, 160, ...

Tcecarenko [31]

Step-by-step explanation:

as we see in the sequence, each term is twice of the previous term.

we mark the Nth as a(N), then:

a(N)=2a(N-1)

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2 years ago

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