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3 years ago

15

If p(x) = 5(x²+1) + 16, what is the value of p(11)?

2 answers:

professor190 [17]3 years ago

8 0

626 bc 5(11^2+1) +16

raketka [301]3 years ago

3 0

Answer: 34 but I’m not 100% sure but that might be right

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Stu trained for a triathlon for 5 hours yesterday. He ran 5 miles and then biked 80 miles. His biking speed is 15 mph faster tha

lara31 [8.8K]

Answer:

Step-by-step explanation:

Given as :

The distance cover while running = $D_1$ = 5 miles

Let The speed for running = $S_1$

The distance cover with bike = $D_2$ = 80 miles

The speed for biking = $S_2$ = 15 mph + $S_1$

Total Time taken = 5 hours

Now Time = $\dfrac{\textrm Distance}{\textrm Speed}$

∴ 5 hour = $\frac{D_1}{S_1}$ + $\frac{D_2}{S_2}$

Or, 5 hour = $\frac{5}{S_1}$ + $\frac{80}{15+S_1}$

Or, 5 hour = $\frac{75 + 5 S_1 + 80 S_1}{S_1(15+S_1)}$

or, 5 × ( $S_1^{2}+15 S_1$ ) = $85 S_1 + 75$

Or, $5 S_1^{2} + 75 S_1$ - $85 S_1 - 75$ = 0

or, $5 S_1^{2} -10 S_1 - 75$ = 0

or, $S_1^{2} -2 S_1 - 15$ = 0

Or, $S_1^{2} -3 S_1 + 5 S_1- 15$ = 0

Or, $S_1 (S_1 - 3) + 5 (S_1 - 3)$ = 0

Or, $(S_1 - 3) ( S_1 + 5 )$ = 0

∴ $S_1$ = 3 , - 5

So, the running speed = 3 mile per hour

And the biking speed = 15 mph + 3 mph = 18 mile per hour

Hence The running speed of Stu is 3 mile per hour . Answer

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3 years ago

Someone can help me ASAPP??

bulgar [2K]

Answer: 23

Step-by-step explanation:

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3 years ago

an amusement park sold 46 child tickets. The other 4 tickets it sold were adult tickets. What is the ratio of the number of adul

Alja [10]

Answer:

2:46

1:23

Step-by-step explanation:

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3 years ago

Giant spider crabs prefer an elevation of around -800 feet, and Atlantic wolffish prefer an elevation of around -300 feet.

Zepler [3.9K]

Giant spider crabs tend to be farther from the surface of the ocean than Atlantic wolffish

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3 years ago

Viktor [21]

Answer:

The choice C.94

Step-by-step explanation:

$2(3( {4}^{2} + 1)) - {2}^{3} \\ \\ 2(3(16 + 1)) - 8 \\ \\ 2(3(17)) - 8 \\ \\ 2(51) - 8 \\ \\ 102 - 8 = 94$

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2 years ago

Read 2 more answers