2 years ago

Given the function f(x) = −2x2 4x − 7, find f(−4). −55 −7 9 25

2 answers:

6 0

$f(x)=-2x^2+4x-7\\\\x=-4,\ subtitute\\\\f(-4)=-2\cdot(-4)^2+4\cdot(-4)-7=-2\cdot16-16-7\\\\=-32-16-7=-55\\\\\boxed{f(-4)=-55}$

Maurinko [17]2 years ago

6 0

Answer:

The answer is -55

Step-by-step explanation:

You might be interested in

A snail is moving along a path that is 4 meters long. The snail moves at an average rate of 3 3/10 inches per minute. Question 1

Troyanec [42]

Answer: The length of the path = 157 inches { approx}

Step-by-step explanation:

Given: The length of the path = 4 meters

1 meter = 100 centimeters

So 4 meters = 400 centimeters

Also 1 in. ≈ 2.54 cm

$\Rightarrow\ 1 cm = \dfrac{1}{2.54}\ in.$

Now, $\text{ 400 centimeters}=400\times\dfrac{1}{2.54}\text{ inches}$

$=157.480314961\approx 157 \ \ \ \ \ \text{ [Rounded to the nearest inch.]}$

Hence, the length of the path = 157 inches { approx}

5 0

2 years ago

How much is 10 minus 2??

Arlecino [84]

10-2=8
Hope that helps!

5 0

3 years ago

Evaluate<br> 4(x+3)(x+1)/(x+5)(x-5) x=3

Aleks04 [339]

Answer:

below

Step-by-step explanation:

4(3 + 1)(3 + 3)(3 + 5)(3 - 5)

4(4)(6)(8)(-2)

16(-96)= -1536

6 0

2 years ago

Ebert used to make $22 an hour, but got a 10% raise. How much more will he make in a 40 hour work week with the raise? pls answe

erastova [34]

Answer:

he make 968 cash in a week

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

What is 5 8/9 + 7 /13

Ede4ka [16]

I pretty sure that the answer would be 6 50/117 but if you get a fraction calculator app it can help more.

3 0

3 years ago

Read 2 more answers