All categories

2 years ago

What is the value of f(x) = –x^2 – 2 when x = –1?

Mathematics

2 answers:

Agata [3.3K]2 years ago

6 0

Answer:

-1

Step-by-step explanation:

If x=-1, then we substitute it into the equation. -(-1)^2 is just 1, minus 2 is -1

f(x) = -1

Helen [10]2 years ago

5 0

Answer:

= -3

Step-by-step explanation:

if x equals -1 then we have to plug it in.

f(x) = –x^2 – 2

f(x) = -1^2-2

which equal -3

You might be interested in

The price of a car was decreased by 20% to £720. What was the price before the decrease?

Tems11 [23]

Answer:

£864

Step-by-step explanation:

20% of 720= £144

720+144= 864

3 0

2 years ago

Which list shows all the factors of 72?

Deffense [45]

Answer:

Step-by-step explanation:

8 0

3 years ago

Tom walks 116 kilometers due north, then 150 kilometers due east and finally 196 kilometers due

STatiana [176]

Answer:

80 I believe

Step-by-step explanation:

6 0

2 years ago

Simplify the following expression Algebra Fraction

Elan Coil [88]

To get the denominator you would have to multiply w+5 by w-4

And whatever you do to the denominator you have to do to the numerator

(w-3)(w-4)
w^2-3w-4w+12
w^2-7w+12

So your answer would be c

4 0

2 years ago

A parallelogram has side lengths of 13 and 17 and an

Ilya [14]

Answer:

$x = 16$

Step-by-step explanation:

x = length of diagonal, can be calculated using the Law of Cosines as explained below:

a² = b² + c² - 2bc(cosA),

Where,

a = x

b = 17

c = 13

A = 64°

Plug in the values into the formula:

$x^2 = 17^2 + 13^2 - 2(17)(13)*cos(64)$

$x^2 = 289 + 169 - 442*0.4384$

$x^2 = 458 - 193.77$

$x^2 = 264.23$

$x = \sqrt{264.23}$

$x = 16.255$

Length of diagonal, $x = 16$ (to nearest whole number)

3 0

3 years ago