All categories

3 years ago

When u are doing math and u have a question with pi in it don't u use "3.14" or do u use "3.141" or is it "3.14159?

Mathematics

2 answers:

Tju [1.3M]3 years ago

7 0

Usually, I use 3.14.

Bingel [31]3 years ago

4 0

It ultimatley depends on your teacher, or the question you are answering. Some questions will specify, saying something like "Use 3.141 for pi", or sometimes teachers will always want you to use a specific number for pi. Personally, I use as many places of pi that will fit on my calculator, and then whatever I get for my answer I will shrink it so that it only has 3 decimal places. Honestly, you should be fine if you just 3.14 for most equations though!

You might be interested in

You multiply two integers. You increase one of them by 1 and decrease the other

snow_tiger [21]

Integers are numbers without decimals

The integers could you have multiplied are 9 and 2

Let the numbers be x and y

So, we have:

$\mathbf{x \times y}$

Increase x by 1 and reduce y by 1.

So, we have

$\mathbf{(x +1) \times (y -1) = 6 + xy }$

Open brackets

$\mathbf{xy -x + y - 1 = 6 + xy}$

Subtract xy from both sides

$\mathbf{ -x + y - 1 = 6}$

Collect like terms

$\mathbf{ -x + y = 6 + 1}$

$\mathbf{ -x + y = 7}$

Rewrite as:

$\mathbf{ y -x= 7}$

The above means that, the difference between the integers is 7.

There are several integers that fit the above <em>description</em>;

One possibility is: 9 and 2

Read more about products at:

brainly.com/question/3208278

6 0

2 years ago

What is the equation in point-slope form of a line that passes through the points (3, −5) and (−8, 4) ?

maxonik [38]

ANSWER

$y + 5= - \frac{9}{11} (x-3)$

or

$y - 4= - \frac{9}{11} (x + 8)$

EXPLANATION

We want to find the equation in point-slope form of a line that passes through the points (3, −5) and (−8, 4).

The point-slope form is given by;

$y-y_1=m(x-x_1)$

where

$m = \frac{4 - - 5}{ - 8 - 3} = \frac{4 + 5}{ - 11} = - \frac{9}{11}$

is the slope of the line.

If

$(x_1,y_1)=(3,-5)$

The point-slope form is

$y + 5= - \frac{9}{11} (x-3)$

On the other hand, if
$(x_1,y_1)=( - 8,4)$

Then the point-slope form is,

$y - 4= - \frac{9}{11} (x + 8)$

These two equations are the same when simplified.

4 0

3 years ago

Mia had 31 green marbles.Then she bought 4 bags of blue marbles. There were 4 marbles in each bag.How many marbles does Mia have

kiruha [24]

She would have 37 marbles

4 0

3 years ago

HELP I NEED HELP ASAP

antoniya [11.8K]

The width is w. the length is 2w - 4. to find area we would multiply these two together: w(2w - 4) & make sure to distribute the w to the 2w AND the -4. so the answer to this question would be 2w^2 - 4w (c). hope this helps!

6 0

3 years ago

If angle ABD=79 what are angles ABC and DBC<br>ABC=5x+4<br>DBC=8x-3

Ne4ueva [31]

Answer:

Step-by-step explanation:

I believe this is geometry,

One exterior angle = sum of two opposite interior angles

ABC + DBC = ABD

5x + 4 +(8x-3) = 79

5x +4 + 8x - 3 =79

13x + 4 - 3 =79

13x + 1 = 79

13x = 79-1

13x = 78

x = 78/13

x = 6

4 0

3 years ago