$f(x)= x^2+9\\\\for\ each\ x\in R\\\\x^2 \geq 0\ \ \ \Rightarrow\ \ \ x^2+9 \geq 9\ \ \ \Rightarrow\ \ \ f(x) \geq 9\\\\y_{min}=9\\ y_{max}\ \ \ \rightarrow\ \ \ not\ exist$

3 0

3 years ago

Read 2 more answers

Which equations illustrate the commutative property of addition?

steposvetlana [31]

I believe it is A and D. All you have to do is add them all together and if both sides are the same then its a correct answer.

8 0

2 years ago

A boat travels 36 miles in 1.5 hours ans then in 14 miles in 0.75 hour. what is the average speed?

allochka39001 [22]

The average speed can be obtained by the formula:

$V_{\text{average}}=\dfrac{\text{total distance}}{\text{total time}}.$

If a boat travels 36 miles in 1.5 hours ans then in 14 miles in 0.75 hour, then find:

total distance is 36+14=50 miles;
total time: 1.5+0.75=2.25 hours.

Therefore,

$V_{\text{average}}=\dfrac{50}{2.25}=\dfrac{5000}{225}=\dfrac{200}{9}=22.(2)$ miles per hour.

Answer: $V_{\text{average}}=\dfrac{200}{9}=22.(2)$ miles per hour.

6 0

3 years ago

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Y = 10x + 6 sollve this by doing what

Vladimir79 [104]

Answer:

x = -3/5

Step-by-step explanation:

y = 10x + 6

0 (- 6) = 10x + 6 (- 6)

-6/10 = 10x/10

-6/10 = x

-3/5 = x

6 0

2 years ago