2 years ago

Find(x)=-x^2-4x+13 find f(3)

Mathematics

1 answer:

hichkok12 [17]2 years ago

5 0

Answer: $f(3)=-8$

Step-by-step explanation:

$f(x)=-x^2-4x+13\\f(3)=-(3)^2-4(3)+13\\f(3)=-(9)-12+13\\f(3)=-9+1\\f(3)=-8$

You might be interested in

Desiree starts a savings account with $125. Every month she deposits $53.50

aev [14]

Answer:

if she deposits for 12 months she would have to deposit 642.

Step-by-step explanation:

3 0

3 years ago

PLEASE HELP ME

Andreas93 [3]

Answer:

480

Step-by-step explanation:

3 0

2 years ago

ladder 5m tall when set against a wall of house just reach the window at a height 3m how far is the lower end of ladder from the

KATRIN_1 [288]

Answer:

Step-by-step explanation:

A simple matter of using Pythagoras. The hypotenuse is the ladder, and one of the legs is the wall, and we have to figure out the value of the other leg.

The Pythagorean formuda is (hypotenuse = a): a² + b² = c² (b and c are the other sides)

applying the values: a = 5 and b or c is 3 (I'll put b = 3)

5² = 3² + c²

25 = 9 + c²

25 - 9 = c²

16 = c²

√16 = c

4 = c

c = 4

3 0

3 years ago

Between which two ordered pairs does the graph of f(x) = x2 + x – 9 cross the negative x-axis? Quadratic formula: x =

katrin2010 [14]

(-6,0) and (-5,0) I got it right

8 0

3 years ago

Read 2 more answers

Please help me with this one

Whitepunk [10]

Answer:

Which school do you attend please and which grade are you in please

6 0

3 years ago