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erica [24]
3 years ago
8

Given f(x) = -2(x + 5), find f(3).

Mathematics
1 answer:
MatroZZZ [7]3 years ago
3 0

Answer:

f(3) = -16

Step-by-step explanation:

f(3) means you substitute x for 3.

f(3) = -2(3 + 5)

f(3) = -2(8)

f(3) = -16

You might be interested in
What is the formula for the nth term of the given sequence? -17, -8, 1
Citrus2011 [14]

Answer:

The n^{th} term of A.P sequence

tₙ = 9 n - 26

Step-by-step explanation:

<u><em>Step(i):</em></u>-

Given sequence

                   - 17 , -8 , 1 .......

first term   = -17

Second term =  - 8

The difference of first two terms

                        d = - 8 -(-17) = -8+17 = <em>9</em>

The difference of next two terms

                        d = 1 - (-8) = 1+8 =   9

∴ The given sequence is  in A.P ( Arthimetic progression)

<u><em>Step(ii):-</em></u>

The n^{th} term of A.P sequence

                t_{n}  = a + ( n-1 ) d

Given a = - 17 and  d = 9

                t_{n}  = -17 + ( n-1 ) 9 = - 17 + 9 n -9 = 9 n - 26

<u><em>Final answer</em></u>:-

The n^{th} term of A.P sequence

tₙ = 9 n - 26

4 0
3 years ago
Can someone plz help me with this problem and plz show work.
motikmotik

Answer:

C

Step-by-step explanation:

y = 2x + 5

the slope (m) of this line is 2 (which can be written as 2/1)

The slope of a perpendicular line is -1/m (the reciprocal of the slope with the opposite sign)

so m = 2/1 => -1/m = - 1/2 = the slope of a line perpendicular to y = 2x + 5

3 0
4 years ago
PLS HELP ME PLS!!!
Natasha2012 [34]

Answer:

I don't know

Step-by-step explanation:

I (aee) - don't (dooont) - know (no)

8 0
3 years ago
I don’t know the answer to this question help me
Tresset [83]

Answer:

x+74

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
2t - 9 - 6t + 2 i really need help
MakcuM [25]

Answer:

-4t-11

Step-by-step explanation:

rearrange the numbers

2t-6t-9+2

Add negative 2

2t-6t-11

2-6

-4t-11

3 0
2 years ago
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