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4 years ago

What is 0.8% as a fraction in simplest form?

Mathematics

2 answers:

elena55 [62]4 years ago

4 0

Answer:

8/10

Step-by-step explanatio: Its in the tenths place so it would be 8 out of 10.

Mashutka [201]4 years ago

3 0

Answer:

4/5

Step-by-step explanation:

.8 is the equivalent of 80%, which is 80/100. You can divide both the numerator and the denominator by 20 to get 4/5.

(80/20 = 4) --> numerator

(100/20 = 5) --> denominator

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What is the greatest common factor of 40x^ 5 y^ 2 and 32x^ 2 y^ 3 ?

Neko [114]

Answer:

the greatest common factor of 40x^ 5 y^ 2 and 32x^ 2 y^ 3 is 1

Step-by-step explanation:

Find the prime factors of each term in order to find the

greatest common factor (GCF).

4 0

3 years ago

What is 5% of 15??????????

Daniel [21]

Answer:

0.75

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Here are two expressions whose product is a new expression, :

Vera_Pavlovna [14]

Answer:

1. Fill in the box with 1

2. Fill in the box with -2

Step-by-step explanation:

Expression:

$(-2x^3 + [\ ]x)(x^{[\ ]}+1.5) = A$

Solving (1): Fill in the box to make it a polynomial.

To make it a polynomial, we simply fill in the box with a positive integer (say 1)

Fill in the box with 1

$(-2x^3 + [1]x)(x^{[1]}+1.5) = A$

Remove the square brackets

$(-2x^3 + x)(x^1+1.5) = A$

$(-2x^3 + x)(x+1.5) = A$

Open bracket

$-2x^4 - 3x^3 + x^2 + 1.5x = A$

Reorder

$A = -2x^4 - 3x^3 + x^2 + 1.5x$

The above expression is a polynomial.

This will work for any positive integer filled in the box

Solving (2): Fill in the box to make it not a polynomial.

The powers of a polynomial are greater than or equal to 0.

So, when the boxes are filled with a negative integer (say -2), the expression will cease to be a polynomial

Fill in the box with -2

$(-2x^3 + [-2]x)(x^{[-2]}+1.5) = A$

Remove the square brackets

$(-2x^3 - 2x)(x^{-2}+1.5) = A$

Reorder

$A = (-2x^3 - 2x)(x^{-2}+1.5)$

Open brackets

$A = -2x-3x^3-2x^{-1}-3x$

Collect Like Terms

$A = -3x^3-2x-3x-2x^{-1}$

$A = -3x^3-5x-2x^{-1}$

Notice that the least power of x is -1.

Hence, this is not a polynomial.

3 0

3 years ago

I dont know how to do this, please help

IgorLugansk [536]

Answer: B= 11

Step-by-step explanation:

8 0

3 years ago

Determine the angles made by the vector v = (67)i + (-15)j with the positive x- and y-axes. write the unit vector n in the direc

vivado [14]

Consider the picture attached.

From right triangle trigonometry:

tan(α)=(opposite side)/(adjacent side)=15/67=0.2239

using a scientific calculator we find that arctan(0.2239)=12.62°

thus α=12.62°, is the angle that the vector makes with the positive x-axis.

The angle made with the + y-axis is 12.62°+90°=102.62°.

The length of the vector v can be determined using the Pythagorean theorem:

$|v|= \sqrt{ 67^{2} + 15^{2} }= \sqrt{4489+225}= \sqrt{4714}=68.8$

Thus, to make v a unit vector, without changing its direction, we need to divide v by |v|=68.8.

This means that the x and y components will also be divided by 68.8, by proportionality.

So, the unit vector in the direction of v is:

<span>(67/68.8)i + (-15/68.8)j=0.97 i + (- 0.22)j
</span>

Answer: 12.62°; 102.62°; 0.97 i + (- 0.22)j

6 0

3 years ago