2 years ago

The temperature at noon was 5 degrees and drops 15 degrees. What is the new temperature?

Mathematics

1 answer:

Aleksandr-060686 [28]2 years ago

8 0

The temperature would be -10 degrees

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sergij07 [2.7K]

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Ana’s age is 8 years less than 4 times her sister’s age.

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(5•4)-8 the answer is 12 because 5 times 4 is 20. Then 20 minus 8 is 12.

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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?<br> -

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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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A scale drawing of a pool has scale of 1 in :4 ft. If the actual pool is 16 ft wide, how is the pool represented in the drawing

Deffense [45]

Answer: 4 inches

Step-by-step explanation:

Let the width of the pool in the drawing be represented by x.

Since scale drawing of a pool has scale of 1 in :4 ft and the actual pool is 16 ft wide, this can be represented in an equation as:

1/4 = x/16

Cross multiply

4 × x = 1 × 16

4x = 16

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x = 4

Therefore, the pool representation in the drawing is 4 inches

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