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rosijanka [135]
3 years ago
10

Find the domain of the function. (Enter your answer using interval notation.) f(x) = 7 − 1 2 x if x ≤ 2 8x − 4 if x > 2 g

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
4 0

Answer\left ( -\infty,2\right ]

Step-by-step explanation:

Given

(i)

F(x)=7-12x

and x\leq 2

Domain is \left ( -\infty,2\right ]

(ii)F(x)=8x-4

x>2

Domain is (2,\infty)

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Answer:

        2                   2

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Step-by-step explanation:

(the twos are exponents)

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3 years ago
It takes 15 minutes to preheat your oven to 325 degrees. For an oven preheated to 325 degrees, the recommended cooking time for
Alisiya [41]

Answer:

(a) T = (15 + 16p) minutes

(b) It will takes approximately 239 minutes to prepare a turkey weighing 14 pounds

Step-by-step explanation:

(a) To determine the total time T needed to preheat the oven and then bake a turkey weighing p pounds

We will sum the time needed to preheat the oven to the time needed to bake the turkey.

From the question,

It takes 15 minutes to preheat the oven to 325 degrees;

Also,

It takes 16 minutes per pound to bake a turkey in the preheated oven.

That is, to bake a turkey weighing p pounds in the preheated oven, it will take

p pounds × 16 minutes / pound = 16p minutes

Hence, the total time T needed to preheat the oven and then bake a turkey weighing p pounds is

T = 15 minutes + 16p minutes

T = (15 + 16p) minutes

This is the formula that express the total time T, in minutes, needed to preheat the oven and then bake a turkey

(b) To find the approximate time required to prepare a turkey weighing 14 pounds.

From the formula in (a)

T = (15 + 16p) minutes

where p is the weight in pounds of a turkey

Then,

T = 15 + 16(14)

T = 15 + 224

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Hence, it will takes approximately 239 minutes to prepare a turkey weighing 14 pounds

7 0
3 years ago
What is the square root of 140 in simplest radical form?
Savatey [412]
‾‾‾‾√140≈11.832159566199232
3 0
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postnew [5]

Step-by-step explanation:

2(10)+2(x+4)

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5 0
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Variation equation and determine the quantity indicated.
mr_godi [17]

Answer:

Step-by-step explanation:

Direct variation has the form y=kx, given k=7 and x=20

y=7(20)=140

8 0
3 years ago
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