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Kobotan [32]
3 years ago
14

If f(x) = x2 + 5 find f(-3)

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
3 0

Step-by-step explanation:

If \tt{ f(x)=x^2+5 } ⠀

Then,

\tt{f(-3)=(-3)^2+5  } ⠀

\tt{f(-3)=9+5  } ⠀

\tt{f(-3)=15  } ⠀

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The sum of two consecutive odd integers is at most 166. What are the greatest consecutive odd integers?
bagirrra123 [75]
. x + (x + 2)≤166
. 2x+2≤166
. x≤83 - 1
. x≤82
. x=81
. 81+(81+2)=164;  164<166
answer: 81 and 83
4 0
4 years ago
At which intervals is the function linear or nonlinear?
NeX [460]

Answer:

Linear                                    non-linear

x<2 , x>5                           2<x<5

Step-by-step  explanation:

When a function is linear then the graph is a straight line

When the function is not linear then the graph is like a curve

From x = - infinity to 2 the graph is a straight line

So from - infinity to 2, the function is linear, that is x<2 function is linear

from 2  to 5 the graph is like a curve , so it is not linear

2<x<5 , the function is not linear

From x = 5 to infinity the graph is a straight line

So from 5 to infinity, the function is linear, that is x>5 function is linear

5 0
3 years ago
The table shows formulas for the recommended heart rates during exercise for a person who is "a" years old. Write and solve a co
Naily [24]

Answer:

102 ≤ heart rate ≤ 183.6

Step-by-step explanation:

... lower limit ≤ heart rate ≤ upper limit

Put 16 where "a" is and do the arithmetic.

... lower limit = 0.5(220 -16) = 102

... upper limit = 0.9(220 -16) = 183.6

Then the inequality is ...

... 102 ≤ heart rate ≤ 183.6

_____

<em>Comment on the problem</em>

There is nothing to "solve" here. One only needs to evaluate the limits.

7 0
3 years ago
Evan has 5 tennis balls, 2 footballs and 2 packages of golf balls with 4 balls in each. What is the ratio of tennis balls to his
Sedbober [7]

Answer:

5/13 or 38.41%

Step-by-step explanation:

7 0
3 years ago
Help help help help help please
iris [78.8K]

Answer:

37

Step-by-step explanation:

h + 4g

5 + 4(8)

5 + 32 = 37

4 0
3 years ago
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