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photoshop1234 [79]
3 years ago
10

I need help please quiz

Mathematics
1 answer:
Anon25 [30]3 years ago
4 0

Answer:

f(x - 4) = x^2 - 6x+ 8

Step-by-step explanation:

Given

f(x) = x^2 + 2x

Required

Find f(x - 4)

Substitute x - 4 for x

f(x - 4) = (x- 4)^2 + 2(x - 4)

Expand

f(x - 4) = x^2 - 8x + 16 + 2x - 8

Collect like terms

f(x - 4) = x^2 - 8x + 2x+ 16  - 8

f(x - 4) = x^2 - 6x+ 8

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Someone please help. Please explain how I should do it!
Ede4ka [16]

Answer:

Step-by-step explanation:

if m and n are irrational number then the product of mn sometimes rational and sometime irrational

ex: √5 *√2=√10 irrational

ex: √8*√2=√16=4 rational

b-y=|x|+3

explain why |x|+3≥|x+3|

absolute value of any number is always positive

x           |x|+3          ≥            |x+3|

1              4              =               4             in this case equal

2             5                                5

-2             5             ≥                 1             in this case |x|+3≥|x+3|

in case of negative value of x then |x|+3>|x+3|

7 0
3 years ago
Which function is graphed?
Rufina [12.5K]

Answer:

C or d

Step-by-step explanation:

4 0
3 years ago
What is 0.00078 in scientific notation?
frozen [14]
Answer: 7.8 x 10^-4
4 0
3 years ago
Find the perimeter of a triangle 20cm and 29cm
bagirrra123 [75]

Answer:

Unclear.

To find the perimeter you need all three sides of the triangle. You have only given two.

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5 0
2 years ago
Read 2 more answers
The sum of a number and twenty-six, divided by twelve is equal to seven! <br><br> Please!!
Travka [436]

Answer:

58

Step-by-step explanation:

1. let x be the unknown number

2. make an expression

x + 26/12 = 7/1

3. cross multiply

x +26 × 1 = x + 26

12 × 7  = 84

 x + 26 = 84

4. move variables on one side and numbers on other side of the equal sign

x + 26 = 84

   - 26    -26

x = 58

4 0
2 years ago
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