Write the integer that represents the opposite of each situation<br> 100 feet above sea level

I'm pretty sure the area of this triangle is 30 m squared. Can someone please tell me if I am right?

myrzilka [38]

It is 30m.. Because you do 10x6=60 then divide it by 2 which is 20.. and hxb/2 is the formulas so.

8 0

3 years ago

I need help i couldnt understand this!!

Black_prince [1.1K]

For #1 you have to make the denominator the same so it will be 4 and 8/16 and 5 and 9/16 Then subtract them. For #3 you divide 175 by 7.
For #4 you do the number of days and multiply it by the number of people
For #5 you multiply the two numbers. For #6 you

7 0

3 years ago

A stack of printer paper is 2 inches thick and contains 500 sheets. estimate the thickness of an individual sheet of the printer

Harrizon [31]

The thickness of an individual sheet of the printer paper is 101.6 micrometer.

<h3>What is unit conversion?</h3>

Unit conversion is a multi-step process that involves multiplying or dividing by a mathematical factor or, more specifically, a conversion factor.

The procedure may also necessitate selecting the appropriate number of critical digits and rounding.
Different conversion units are used to evaluate different parameters.

Now, according to the question.

The total number of sheets are 500.

The thickness of stack of sheets are 2 inch.

convert 2 inch in cm;

2 inch = 2× 2.54 cm

2 inch = 5.08 cm.

Thickness of 1 sheet = Total thickness/Total sheets

Thickness of 1 sheet = 5.08/500

Thickness of 1 sheet = 0.01016 cm

Covert this thickness in micrometer.

1 micrometer = 1/1000 cm

1 cm = 10000 micrometer

Thus,

0.01016 cm = 0.01016×10000

0.01016 cm = 101.6 micrometer

Therefore, the thickness of an individual sheet of the printer paper is 101.6 micrometer.

To know more about unit conversion, here

brainly.com/question/13016491

#SPJ4

4 0

2 years ago

I can't figure out how to do (i + j) x (i x j)for vector calc

Vinil7 [7]

In three dimensions, the cross product of two vectors is defined as shown below

$\begin{gathered} \vec{A}=a_1\hat{i}+a_2\hat{j}+a_3\hat{k} \\ \vec{B}=b_1\hat{i}+b_2\hat{j}+b_3\hat{k} \\ \Rightarrow\vec{A}\times\vec{B}=\det (\begin{bmatrix}{\hat{i}} & {\hat{j}} & {\hat{k}} \\ {a_1} & {a_2} & {a_3} \\ {b_1} & {b_2} & {b_3}\end{bmatrix}) \end{gathered}$

Then, solving the determinant

$\Rightarrow\vec{A}\times\vec{B}=(a_2b_3-b_2a_3)\hat{i}+(b_1a_3+a_1b_3)\hat{j}+(a_1b_2-b_1a_2)\hat{k}$

In our case,

$\begin{gathered} (\hat{i}+\hat{j})=1\hat{i}+1\hat{j}+0\hat{k} \\ \text{and} \\ (\hat{i}\times\hat{j})=(1,0,0)\times(0,1,0)=(0)\hat{i}+(0)\hat{j}+(1-0)\hat{k}=\hat{k} \\ \Rightarrow(\hat{i}\times\hat{j})=\hat{k} \end{gathered}$

Where we used the formula for AxB to calculate ixj.

Finally,

$\begin{gathered} (\hat{i}+\hat{j})\times(\hat{i}\times\hat{j})=(1,1,0)\times(0,0,1) \\ =(1\cdot1-0\cdot0)\hat{i}+(0\cdot0-1\cdot1)\hat{j}+(1\cdot0-0\cdot1)\hat{k} \\ \Rightarrow(\hat{i}+\hat{j})\times(\hat{i}\times\hat{j})=1\hat{i}-1\hat{j} \\ \Rightarrow(\hat{i}+\hat{j})\times(\hat{i}\times\hat{j})=\hat{i}-\hat{j} \end{gathered}$

Thus, (i+j)x(ixj)=i-j

8 0

1 year ago

A tourist in France wants to visit 8 different cities. If the route is randomly selected, what is the probability that she will

Harlamova29_29 [7]

Answer:

Probability p( selecting 8 cities alphabetically) = 2.48×10^-5

Step-by-step explanation:

Number of possible ways of choosing 8 cities=Permutation P(n,k) = n!/(n-k)!

P(8,8)= 8!/(8-8)! = 8! = 40,320

Probability (selecting 8 cities alphabetically) = 1/40320 = 2.48×10^-5

7 0

3 years ago

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Write the integer that represents the opposite of each situation 100 feet above sea level