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3 years ago

5

What is Index Law 1? please give a definition

1 answer:

Nataly_w [17]3 years ago

6 0

Answer:

LAW 2: The second law of indices tells us that when dividing a number with an exponent by the same number with an exponent, we have to subtract the powers. In algebraic form, this rule is as follows . ... Example: In this example, the powers were multiplied together to give the answer which is 3 to the power of 6.

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The width of a human hair is about 0.002 inches, which can be written as

GalinKa [24]

Answer:

-3

Step-by-step explanation:

5 0

4 years ago

Simplify (4x - 6) + (5x + 1).<br> a)9x + 5<br> b)9x-5<br> c)x-5<br> d)-X-5

Lelechka [254]

Answer:

b

Step-by-step explanation:

just add x values and numbers

6 0

3 years ago

Read 2 more answers

Rewrite as y−k=a(x−h)2 or x−h=a(y−k)2. Find the vertex, focus, and directrix.<br> y−3=(2−x)^2

Talja [164]

Given:

The given equation is

$y-3=(2-x)^2$

To find:

The vertex, focus, and directrix.

Solution:

The equation of a parabola is

$y-k=a(x-h)^2$ ...(i)

where, (h,k) is vertex, $\left(h,k+\dfrac{1}{4a}\right)$ and directrix is $y=k-\dfrac{1}{4a}$

We have,

$y-3=(2-x)^2$

It can be written as

$y-3=(-(x-2))^2$

$y-3=(x-2)^2$ ...(ii)

On comparing (i) and (ii), we get

$h=2,k=3,a=1$

Vertex of the parabola is (2,3).

$Focus=\left(2,3+\dfrac{1}{4(1)}\right)$

$Focus=\left(2,3+\dfrac{1}{4}\right)$

$Focus=\left(2,\dfrac{13}{4}\right)$

Therefore, the focus of the parabola is $\left(2,\dfrac{13}{4}\right)$ .

Directrix of the parabola is

$y=3-\dfrac{1}{4(1)}$

$y=3-\dfrac{1}{4}$

$y=\dfrac{11}{4}$

Therefore, the directrix of the parabola is $y=\dfrac{11}{4}$ .

4 0

3 years ago

Given the function, d(t) = 50t, the variable t represents which of the following? Select all that apply. input output function i

34kurt

Answer:

Input

Independent variable

Step-by-step explanation:

we know that

<u><em>Independent variables</em></u>, are the values that can be changed or controlled in a given model or equation

<u><em>Dependent variables</em></u>, are the values that result from the independent variables

we have the function

$d(t)=50t$

In this problem

The function d(t) represent the dependent variable or the output

The variable t represent the independent variable or input

6 0

3 years ago

Read 2 more answers

Pls someone help me fasttttt

gogolik [260]

I think it’s the second answer but just look at the inequality

5 0

3 years ago