All categories

4 years ago

How do you calculate correctly with real world measurements

1 answer:

6 0

Based on the experience of the responder, to correctly calculate measurements in real-world. Firstly is to avoid errors as much as possible. Errors are what makes your measurement invalid and unreliable. There are two types of error which is called the systematic error and the random error. Each error has different sources. Words that were mentioned –invalid and unreliable are very important key aspects to determine that your measure is truly accurate and consistent. Some would recommend using the mean method, doing three trials in measuring and getting their mean, in response to this problem.
HOPE THIS HELPED

You might be interested in

Tim wanted to sell his watch at a discount of 10%. However, he then decides to increase the discount price by 5%. What is the ne

miv72 [106K]

Answer:

15% is the discount

Step-by-step explanation:

10 + 5

3 0

3 years ago

Regular Hourly Rate = $6.50 Total Work Hours = 48 Overtime Rate = Time

Vikki [24]

Answer:

2212$

Step-by-step explanation:

6 0

3 years ago

Write 57.5% as a fraction in simplest form

Sholpan [36]

The answer is 23/40 . Hope this helps

8 0

3 years ago

I suck at math if you could help me with these questions that would be great

docker41 [41]

Answer:

Part 8) The triangles are not similar (see the explanation)

Part 12) The triangles are not similar (see the explanation)

Part 14) The area is increased by 125%

Part 15) $h=30\ ft$

Step-by-step explanation:

Part 8) we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

Find the value of x in the larger triangle

The sum of the interior angles in any triangle must be equal to 180 degrees

$64^o+85^o+x=180^o$

$149^o+x=180^o$

$x=180^o-149^o$

$x=31^o$

Find the value of y in the smaller triangle

The sum of the interior angles in any triangle must be equal to 180 degrees

$26^o+85^o+y=180^o$

$111^o+y=180^o$

$y=180^o-111^o$

$y=69^o$

The corresponding angles of both triangles are not congruent

therefore

The triangles are not similar

Part 12) we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

The measure of the interior angles of the triangle of the left are

88°

29° ----> by vertical angles

and

180°-(88°+29°)=63° ---> the sum of the interior angles in any triangle must be equal to 180 degrees

The measure of the interior angles of the triangle of the right are

180°-91°=89° ----> the sum of a exterior angle and a interior angle is equal to 180 degrees

29°

and

180°-(89°+29°)=62° ---> the sum of the interior angles in any triangle must be equal to 180 degrees

The corresponding angles of both triangles are not congruent

therefore

The triangles are not similar

Part 14) we know that

If two figures are similar then the ratio of its areas is equal to the scale factor squared

In this problem the scale factor is 1.5

Because

100%+50%=150%=150/100=1.5

The scale factor squared is $1.5^2=2.25$

That means that the new area is 2.25 times the original area

The area is increased by 125%

Part 15)

Let

h ----> the height of the pine

we know that

The height of the person divided by the length of his shadow is equal to the height of the pine tree divided by the length of its shadow

using proportion

$\frac{6}{3}=\frac{h}{15}$

solve for h

$2=\frac{h}{15}$

$h=2(15)=30\ ft$

6 0

3 years ago

Edith works for x amount of hrs that pays $4 she also has accepted another job that pays $8 an hr working y amount of hrs she ca

igor_vitrenko [27]

Study the problem
Organize your facts
Line up the problem
Validate
Explain

<h2 />

<h2>step 1 :study the problem </h2>

write down your fact or what you know about the problem. also crossout unnecessary parts of the problem and highlight important information.

example: X = hours

<h2> </h2><h2>Step 2: organize your facts</h2>

organize your facts means put in order ,write what it means etc.

example: the problem say rebbeca has 3 3 times as much candy than Sara. what does the problem mean ?

<h2>Step 3 : line up your strategy. </h2><h3> what are your plans for solving this problem ? what operation will u do ? how much step is in this problem ? does this make sense ? in line up your strategy u have to think about why I'm doing this? how I will do this etc.</h3>

<h2>Step 4 : validate </h2>

<h3>"SOLVE THE PROBLEM"!</h3>

8 0

4 years ago