2 years ago

PLEASE HELP 25 POINTS

Mathematics

1 answer:

Monica [59]2 years ago

8 0

Answer:

Step-by-step explanation:

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

Harlamova29_29 [7]

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

4 0

2 years ago

Please choose answer choice a,b,c or d

dmitriy555 [2]

Answer:

A. -4

Step-by-step explanation:

Slope is rise over run, or y2-y1 / x2-x1.

$\frac{y2-y1}{x2-x1} = \frac{-4-8}{2--1} =\frac{-12}{3} = -4$

<u>The slope is A. -4.</u>

Let's see--does that make sense? A slope of four would be pretty steep, and that matches the graph. It also should be negative because the line goes down and to the right, not up and to the right, so -4 makes sense!

4 0

2 years ago

PLEASEEEE HELPPP i can’t get it

sveta [45]

Answer:

(-4, 2.5)

Step-by-step explanation:

-8/2=-4

5/2=2.5

8 0

2 years ago

Write and inequality for Toni can carry up to 18lb in her backpack.

mr Goodwill [35]

X is less than or equal 18. I hope it helps

7 0

2 years ago

4×(2.1+3.9)-7)+6×(6.2-4.2)=

Helen [10]

I am pretty sure it is 29 because i did the math and that is what it comes out to

8 0

2 years ago