2 years ago

Evaluate the function. f(x) = -x^2 - 4x + 13 Find f(3)

Mathematics

1 answer:

julia-pushkina [17]2 years ago

3 0

Answer: i believe the answer is 10

Step-by-step explanation:

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I will give brainliest but you need to explain how you received the answer so i can learn how to do it on my own/// thanks!

Readme [11.4K]

To solve this problem we must know that when any two lines intersect , a pair of opposite angles from the figure Will be equal
so that means that
$4x + 20 = 3x + 55$
we can subtract twenty from each side
$4x + (20 - 20) = 3x + (55 - 20)$
$4x = 3x + 35$
now we can subtract like terms
$4x - 3x = (3x - 3x) + 35$
so we can get the final answer as
$1x = 35$

6 0

3 years ago

Plugin y=-5 into either equation and solve for x<br> -6x-8y=-20 or x+y=5

nalin [4]

Answer:

x = 10

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Find the area of this figure. use 3.14 for pi.

Ganezh [65]

The square would be 100.
The semicircle you will use the formula πr^2/2.
That would mean you would take the 3.14x5^2/2.
(3.14x5x5)/2
(3.14x25)/2
78.5/2
=39.25
So the total area would be 139.25

7 0

2 years ago

9 + 5 = x - 11<br>how to find the x number

astra-53 [7]

9 + 5 = x - 11

combine like terms

14 = x - 11

add 11 to both sides

25 = x

x = 25

answer

x = 25