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2 years ago

What is the absolute value of a number?

Mathematics

1 answer:

frutty [35]2 years ago

5 0

Answer:

It is the distance from the zero on a number line. Also, it is never negative.

Step-by-step explanation:

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What is the value of f(−1)f(−1) when f(x)=2x 2 ? enter your answer in the box. f(−1)=

sergiy2304 [10]

I hope this helps you

x= -1

f (-1)= 2. (-1)^2

f (-1)= 2.1

f (-1)= 2

6 0

3 years ago

Helppppp meeee pleassseee

aleksley [76]

Answer:

it is b

Step-by-step explanation:

4 0

3 years ago

Tiago tem uma extensa coleção de livros ele os deixa organizados em uma estante, sparados por gênero. seu gênero favorito, suspe

Andreyy89

Guys help me I’m stuck in this question also it’s in my homework

6 0

3 years ago

Two cities are 150 miles apart. The map that Eric is reading has a scale of 2 inches = 25 miles. How far apart are the two citie

sasho [114]

Answer:

12 inches

Step-by-step explanation:

2 inches = 25 miles

25 * 6 = 150 miles

6 0

3 years ago

an airplane travels 4688 kilometers against the wind in 8 hours and 5808 kilometers with the wind in the same amount of time. wh

Vladimir [108]

The speed of wind is 656 kmph and speed of plane is 70 kmph.

<u>SOLUTION: </u>

Given that, an air-plane travels 4688 kilometers against the wind in 8 hours

And 5808 kilometers with the wind in the same amount of time.

We have to find the rate of the plane in still air and the rate of wind

Now, let the speed of wind be a kmph and speed of plane be b kmph.

And we know that, $\text { distance }=\text { speed } \times \text { time }$

$\begin{array}{l}{\text { Then, while travelling with wind } \rightarrow 5808=(a+b) \times 8 \rightarrow a+b=726 \rightarrow a=726-b \rightarrow(1)} \\\\ {\text { While travelling against wind } \rightarrow 4688=(a-b) \times 8 \rightarrow a-b=586 \rightarrow(2)}\end{array}$

Substituting (1) in (2) we get,

$\Rightarrow 726-b-b = 586\Rightarrow -2b=586-726 \Rightarrow -2b=-140$

$\Rightarrow b=\frac{140}{2} \Rightarrowb=70\Rightarrow (3)$

On substituting (3) in (1) we get,

$a=726-70=656\Rightarrow a=656$

Hence, the speed of wind is 656 kmph and speed of plane is 70 kmph.

4 0

3 years ago