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3 years ago

F(-1) if f(x)= 4x^2 Help solve please

Mathematics

2 answers:

Dmitry_Shevchenko [17]3 years ago

7 0

Answer: 1

Step-by-step explanation:

Square the -1 first which ends up being positive 1. Then multiply by 4 and it = 4

nasty-shy [4]3 years ago

5 0

Answer:

Option C, $f(-1) = 4\\$

Step-by-step explanation:

Step 1: Set x to -1

$f(x)=4x^2$

$f(-1)=4(-1)^2$

$f(-1)= 4(1)$

$f(-1) = 4\\$

Answer: Option C, $f(-1) = 4\\$

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What is the simplified expression for the expression below? 4(3x – 2) + 6x(2 – 1) 24x – 3 18x – 8 18x – 7 24x – 14

kvasek [131]

Answer:

Option b 18x-8 is correct answer.

Step-by-step explanation:

We need to simplify the expression 4(3x – 2) + 6x(2 – 1) and find the result.

Solving:

= 4(3x – 2) + 6x(2 – 1)

Multiplying terms with values in the bracket.

= 12x - 8 + 12x -6x

Adding like terms

= 12x + 12x - 6x -8

= 24x -6x -8

= 18x -8

So, Option b 18x-8 is correct answer.

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3 years ago

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Identify the vertex of the parabola y = x^2-2x-3

melisa1 [442]

Answer:

(2, -3)

Step-by-step explanation:

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2 years ago

One estimate shows that the number of people without access to safe drinking water is about one billion. How much water is requi

gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

1 billion = 10^9

10^9 people * (10 Liters)/person = 10^10 Liters

3 0

2 years ago

Help me please please

Vera_Pavlovna [14]

Answer:

3.88 nm

Step-by-step explanation:

The angle at Port Latta between the actual direction of travel and the destination at Lookout Point is 90° -75° = 15°. The sine function relates the angle, the side opposite, and the hypotenuse of a right triangle, so you have ...

sin(15°) = (distance to Lookout Point)/(15 nm)

Solving for the desired distance, we have ...

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The yacht is 3.88 nautical miles from Lookout Point.

3 0

3 years ago

Doña Gertrudis recolecta en promedio 75 litros de leche de cabra por día y utiliza alrededor de 5 litros para hacer un kilogramo

Nimfa-mama [501]

Answer:

825 pesos a day on average

1 dozen weight = 2.4 kg

Step-by-step explanation:

In ENGLISH:

Doña Gertrudis collects on average 75 liters of goat milk per day and uses around 5 liters to make one kilogram of cheese. The cheeses he makes weigh 200 grams each and he sells them for 132 pesos a dozen. How much money do you get per day on average from the sale of your cheeses? How many kilograms does the dozen cheeses weigh?

Solution:

75 Liters / 5 Liters = 15

15 * 1 kg = 15 kg of cheese per day

15kg in grams is 15*1000 = 15,000 grams

Each cheese block is 200 grams, so number of blocks of cheese:

15,000/200 = 75 blocks of cheese

1 dozen (12) = 132 pesos, so 1 would be:

132/12 = 11 pesos PER BLOCK

SO, 75 blocks of cheese = 75 * 11 = 825 pesos (per day on average)

Dozen cheese weight in kg,

200 grams * 12 = 2400 grams

In kg,

2400/1000 = 2.4 kg

8 0

3 years ago