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Llana [10]
3 years ago
10

PLEASE HURRY I NEED MY WORK TO BE SHOWN!!!!! 15 POINTS!!! CORRECT ANSWERS ONLY PLEASE!!!

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
4 0

Answer:

f(-4) = 72, f(x + 5) = 3x² + 23x + 36

Step-by-step explanation:

f(-4) = 3(-4)² - 7(-4) - 4

      = 48 - (-28) - 4

f(-4) = 72

f(x + 5) = 3(x + 5)² - 7(x + 5) - 4

           = 3(x + 5)(x + 5) - 7(x + 5) - 4

           = 3(x² + 10x + 25) - 7(x + 5) - 4

           = 3x² + 30x + 75 - 7x - 35 - 4

f(x + 5) = 3x² + 23x + 36

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Need help ASAP please I’ll give brainiest:)
scoundrel [369]

Answer:

ac+ad+bc+bd

Step-by-step explanation:

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3 years ago
I am a 3-digit number. If you switch my first and last digits, I decrease by 297. Also, my
malfutka [58]

Answer:

  • 865

Step-by-step explanation:

Let the 3-digit number is <u>abc</u> = 100a + 10b + c.

<u>We have:</u>

  • 100a + 10b + c - 100c - 10b - a = 297
  • b = a - 6
  • a = 2c - 2

<u>Simplify the first equation:</u>

  • 99a - 99c = 297
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  • a = c + 3

<u>Solve for c by substitution:</u>

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  • 2c - c = 3 + 2
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<u>Find a:</u>

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<u>Find b:</u>

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<u>The number is:</u>

  • 865
3 0
3 years ago
Solve the equation for y. Identify the slope and y-intercept then graph the equation.
drek231 [11]

Answer:

y = 1        m = -3       b = 1

Step-by-step explanation:

y = mx + b                          y = -3x + 1

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5 0
3 years ago
PLZ HELP ME I NEED THIS FAST WILL GIVE BRAINLIEST
Bas_tet [7]

Step-by-step explanation:

The formula the amusement parc use is  100y-39000=55(x-800)

The slope intercept form of a function is wriiten generally as:

y = mx+c

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  • c is a constant and represents the y-intercept
  • x is a variable
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Let's rewrite our equation in the precedent form

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The slope intercept form of this equation is:

y= 0.55x-50

4 0
3 years ago
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Real question -6n - 4n = 30 n =
Zepler [3.9K]

Answer: n=0

Step-by-step explanation:

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3 years ago
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