2 years ago

What is the answer its for a grade

Mathematics

1 answer:

kolezko [41]2 years ago

8 0

The answers is x=14.

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xeze [42]

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What is the inverse of f(x)=x^4+7 for x>0 where function g is the inverse of function f? -

Ann [662]

Answer:

$g(x) = \sqrt[4]{x-7},~ x\geq 7$

Step by step explanation:

$y= f(x) = x^4+7\\\\\text{Replace x with y and solve for y:}\\\\~~~~~~~x = y^4 +7\\\\\implies y^4 = x-7\\\\\implies y = \pm\sqrt[4]{x-7}\\\\ \implies f^{-1}(x) = \pm\sqrt[4]{x-7}$

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1 year ago

Which product will be positive? -6 × 4 -6 × (-7) -3 × 8 6 × (-4)

masya89 [10]

Answer:

-6x(-7)( negative and negative = positive)

Step-by-step explanation:

-6x4= -24

-6x(-7) = 42

-3x8= -24

6x(-4) = -24

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2 years ago

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Which expressions are equivalent?

nasty-shy [4]

The first set of expressions bc 3x is equivalent to 3x and -7y is equivalent to -7y

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2 years ago

Ezra is training for a track race. He starts by sprinting 100 yards. He gradually increases his distance, adding 5 yards a day f

Sergeu [11.5K]

On the 21st day, he sprints 205 yards.

Is that what you meant for the problem

or do u want to know how many yards he sprinted total for the 21 days
If it is,
he sprinted a total of 3390 yards

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3 years ago

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