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3 years ago

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

Mathematics

2 answers:

Agata [3.3K]3 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]3 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

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A pair of jeans is discounted by 12% and then a further 17% discount is

Andreyy89

Answer:

$171.14

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

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2 years ago

If ABC~DEF what is the length of BC? If ABC~DEF what is the length of EF?

marysya [2.9K]

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3 years ago

Exam question: You can buy a 57-pound bag of flour for $ 11 or you can buy a 1-pound bag for $ 0.41 Compare the per pound co

egoroff_w [7]

Answer:

Step-by-step explanation:

57 lb bag for $ 11 or 1 lb bag for $ 0.41

11/51 = 0.215 .....rounds to 0.22 ......this is the correct way...... the student messed up and divided wrong.

the large bag only charges $ 0.22 per lb, whereas, the small bag charges $ 0.41 per lb.

3 0

3 years ago

In the figure to the right, AE + DC = 1 1/5 cm, AB = 1 3/4 cm, DE = 1 1/4 cm, and BC = 1 3 /10 cm. Find the perimeter of the fig

pentagon [3]

Answer:

The perimeter of the figure = 9.5 cm

Step-by-step explanation:

Note: You probably missed to add the figure, but after a little research I found and am attaching the figure. I have answered your question based on the reference of that figure. But, I hope you would learn the concept so that you could solve any question based on this concept. So, please check the figure.

Solution:

The perimeter of the figure is the sum of all the sides of the given figure as shown in the attached figure.

So, here is the formula to calculate the perimeter.

Perimeter = AB + DE + BC + AE + BC

As AE + DC = 1 1/5 cm, AB = 1 3/4 cm, DE = 1 1/4 cm, and BC = 1 3/10 cm

Therefore,

Perimeter = 1 3/4 + 1 1/4 + 13/10 + 1 1/5 ∵ AE + BC = 1 1/5

= (130 + 110 + 52 + 88) / 40

= 380/40

= 9.5 cm

So, the perimeter of the figure is = 9.5 cm

Keywords: perimeter

Learn more about perimeter of polygon from brainly.com/question/13393967

#learnwithBrainly

5 0

3 years ago

Read 2 more answers

Based on your observations, what conclusion can you draw about the lengths of AB DB AE EC

Deffense [45]

Answer:

The ratio of AD to DB is equal to the ratio of AE to EC. In other words, the pairs of lengths are proportional.

Step-by-step explanation:

Sample answer from plato

4 0

3 years ago