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VARVARA [1.3K]
2 years ago
10

Find f(-2) if f(x) = 4x + 8

Mathematics
2 answers:
Solnce55 [7]2 years ago
8 0
The answer should be 0
zzz [600]2 years ago
5 0

Answer:

0

Step-by-step explanation:

Use the hint lol
Step 1: Plug in -2 into the equation.
f(-2) = 4(-2) + 8


Step 2: Multiply
f(-2) = -8 + 8

Step 3: Add

f(-2) = 0

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Within 11 years, the age of Peter will be half the square of the age he was 13 years ago. Calculate the current age of Peter. Re
OLga [1]

Answer:

21

ctto JBarnum

Step-by-step explanation:

P+11=(1/2)(P-13)^2

P+11=(1/2)(P^2-26p+169)

2(P+11)=(1/2)(2)(P^2-26p+169)

2P+22=P^2-26p+169

0=P^2-28p+147      ( -7 and -21)

(P-7)(P-21)=0

P=7,21                     (cant be 7 as 13 years from 7 is negative so peter is 21)

checking:

21+11=32

32=(1/2)(21-13)^2

32=(1/2)(8)^2

32=(1/2)64

32=32

correct

4 0
3 years ago
Please someone HELP QUICK<br> ILL GIVE BRAINLIEST TO CORRECT ANSWER<br><br> HURRYYYYYY
Veseljchak [2.6K]
Okay. So t is in the parenthesis of the equations and represents the number of years after 1950. In this case, the first, second, third, and the seventh tile won't work, because those numbers are too big to be applicable as years. The number of vinyls sold each year would be put behind the equal sign. If you solve it correctly, here are your answers starting from the top:

1. f(8) = 68,594
2. f(11) = 91,299
3. f(2) = 38,720
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8 0
3 years ago
A rectangle has a width of 40 units and a length of 52 units. What is the length of the diagonals of the rectangle
Irina-Kira [14]

Answer:approximately 65.6

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Make b the subject of the formula<br><br>A=½(a+b)h​
kenny6666 [7]
B=A/(1/2h) -a
work shown below

3 0
3 years ago
Read 2 more answers
How do you do this?
Alenkasestr [34]

Answer:

by increasing the size ez

4 0
3 years ago
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