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3 years ago

Help please!

Mathematics

2 answers:

yawa3891 [41]3 years ago

6 0

Step-by-step explanation:

you're just going to switch x and y and then solve for y

m_a_m_a [10]3 years ago

4 0

Answer:

Hello,

Step-by-step explanation:

The problem is that the inverse function is not a function but

an union of 2 functions.

$y=(x+6)^2+1\ is\ the\ orignal\ function\ f(x).\\\\Inverting\ x\ and\ y\ gives: \ x=(y+6)^2+1\\\\(y+6)^2=x-1 \ nota\ bene\ x-1\geq 0 \\(y+6)^2-(x-1)=0\\\\((y+6)-\sqrt{x-1} ) * ((y+6)+\sqrt{x-1}) =0\\\\y=-6+\sqrt{x-1}-6\ or\ y=-6-\sqrt{x-1}\\$

For the fun

, $f_1(x)= (x+6)^2+1=0\ if\ x$

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Samuel was preparing for the triathlon. He did 3 activities every morning: Ran for 30 minutes, covering 4.5 miles. Swam for 20 m

Setler [38]

Speed can be defined as the <em><u>distance covered per time. </u></em>

The average speed formula is given as: Distance/Time

The average speed of Samuel's morning training is 7 2/3 miles/hour

We are to calculate the time in hours. Remember conversion rate :

60 minutes = 1 hour

He did 3 activities every morning

a) Ran for 30 minutes, covering 4.5 miles.

60 minutes = 1 hour

30 minutes = ?

Cross Multiply = 30 minutes x 1 hour / 60 minutes

= 0.5 hour

Hence: Speed = 4.5 miles/0.5 hour

= 9 miles/hour

b) Swam for 20 minutes, covering 2/3 miles

60 minutes = 1 hour

20 minutes = ?

Cross Multiply = 20 minutes x 1 hour / 60 minutes

= 1/3 hour

Hence: Speed = 2/3 miles/ 1/3 hour

= 2/3 x 3/1 (miles/hour)

= 2 miles/hour

c) Biked for 45 min, covering 9 miles.

60 minutes = 1 hour

45 minutes = ?

Cross Multiply = 45 minutes x 1 hour / 60 minutes

= 3/4 hour

Hence: Speed = 9 miles/ 3/4 hour

= 9 x 4/3 (miles/hour)

= 12 miles/hour

Samuel's average speed during his morning training is calculated as:

(9 + 2 + 12) miles/hour / 3

= 23/3

= 7 2/3 miles/hour

To learn more, visit the link below:

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3 years ago

Evaluate 2 + 6(9-3^2)-2

8_murik_8 [283]

Answer:

Step-by-step explanation:

2+ 6(9-3^2)-2

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6 0

4 years ago

Could somebody please help me?

Ray Of Light [21]

When multiplying exponential terms with the same base, the exponents can be added:

3+-5

3-5

-2

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When raising a value to a negative exponent, it can be rewritten as a fraction. Therefore, the answer is:

1/5^2

Hope this helps!!

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3 years ago

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ankoles [38]

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4 years ago

When the Bucks play Chiefs at football, the probability that the Chiefs, on present form, will win is 0.56. In a competition, th

Tom [10]

Answer:

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