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9966 [12]
4 years ago
14

Calc help, don’t get it!

Mathematics
2 answers:
Arisa [49]4 years ago
5 0

Answer:

f(7) = 2

Step-by-step explanation:

3f(7) + f(7)g(7) = 18

3f(7) + f(7)(6) = 18

f(7) (3 + 6) = 18

f(7) x (9) = 18

f(7) = 2

Vikentia [17]4 years ago
3 0
F(7) = 2

Explanation:
It gives you the limit as x goes to 7 of an expression. Try to plug in x = 7, and set it equal to the right hand side.
3f(7) + f(7)g(7) = 18
We can replace g(7) with 6
3f(7) + 6f(7) = 18
9f(7) = 18
f(7) = 2
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A right triangle has a hypotenuse of 43cm and an angle of 56 degrees opposite leg m . What is the length of leg m rounded to the
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6 0
3 years ago
What is the equation of a line with the point of (-1,-3) and a slope of -3
taurus [48]

Answer:

y+3=-3(x+1)

Step-by-step explanation:

y-y1=m(x-x1)

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8 0
4 years ago
Find a 99% confidence interval for the previous problem.A) ($99,271.44, $100,728.56)B) ($99,242.00, $100,758.01)C) ($99.996.46,
Mamont248 [21]

95% confidence interval is given by

x - 2D , and x+ 2D

For 99% confidence interval is

x - 3D , and x + 3D

x = 100000

D = 2000

Then calculate

100000 - 3•2000= 94000

and

100000 + 3•2000= 106000

Now find √D = 44.72

Then interval is

100000 - 44.72 ,. And. 100000 + 44.72

99,956 lower limit and. 100472 upper limit

Then we see that theres only one interval ,

that is between thes 2 limits

ANSWER Is OPTION C) ) ($99.996.46, $100,003.55)

8 0
2 years ago
(-14.2b - 97.35) + (6.76d - 118.7 - 3.4d )
Taya2010 [7]

Answer:

Hi! The answer to your question is -14.2b+3.36d-216.05

Step-by-step explanation:

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6 0
3 years ago
7x + 9 = 58 i need all the steps
pickupchik [31]

Answer:

Step-by-step explanation:

7x + 9 = 58

     -9    -9      Subtract 9 from both sides

7x = 49

/7     /7           Divide both sides by 7

x = 7 (this is an apporximation)

7 0
3 years ago
Read 2 more answers
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