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PIT_PIT [208]
3 years ago
10

18 points !!!!!! pls answer :) The instructor had saved $3,500 and rents an apartment for $275 monthly. He believes the point (6

, 1850) would be on the equation of the line. Is he correct? Explain how to check if a point is on a line.
Mathematics
1 answer:
Natali5045456 [20]3 years ago
5 0

Answer:

Then solve this equation for the y-intercept. Next substitute the y-intercept and the coordinates of the other point into the slope-intercept form of the equation of a line. Write the equation in standard form or in point-slope form. C. First use the given points to find the slope of the line. Then substitute the slope and the coordinates.

Step-by-step explanation:

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WILL GIVE BRAINLIEST WHAT IS THE FORMULA FOR SURFACE AREA
eimsori [14]

Answer:

Hi! The formula for surface area is:

area = 2lw + 2lh + 2hw

(l = length, w = width, h = height.)

<em>Hope this helps! :)</em>

8 0
3 years ago
Read 2 more answers
A study involved measuring the average IQ of Americans. What does the Central Limit Theorem say about the study? As long as the
Alexxx [7]

Answer:

As long as the sample size n is large enough: The average IQ of Americans in the sample will be normally distributed.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

So the correct answer is:

As long as the sample size n is large enough: The average IQ of Americans in the sample will be normally distributed.

5 0
3 years ago
The ratio of the lengths of the two legs of a right triangle is 3:4
Snowcat [4.5K]

<em>Greetings from Brasil... </em>

Check Attachment!!!

According to the statement of the question, we have:

a/b = 3/4

<em>Note that according to the attached figure, </em><em>b > a</em><em>, then the correct proportion will be </em><em>a</em><em> to </em><em>3</em><em>, as well as </em><em>b</em><em> to </em><em>4</em><em>, because </em><em>b > a</em><em> and </em><em>4 > 3</em>

Isolating a and b:

a = 3b/4

b = 4a/3

From Pythagoras:

h² = a² + b² - as a = 3b/4 and b = 4a/3, so

<h3>b = 4h/5</h3><h3>a = 6h/5</h3>

For Area:

A = b.a/2

as b = 4h/5 and a = 6h/5, so

<h3>A = 12h/25</h3>

4 0
2 years ago
15 postcards, 10 envelopes, and a notepad cost 1 dollar and 68 cents. The envelope is 8 times cheaper than the notepad and 2 cen
Vlad1618 [11]

15 postcards, 10 envelopes, and a notepad cost------------------- 1.68 dolars

 

 

Postcards------------x

Envelopes------------y

Notepad--------------z

 

15x+10y+z=1.68

<span>Y=z/8     y=0.02+x</span>

<span>Z=8y       x=y-0.02</span>

15(y-0.02)+10y+8y=1.68

15y-0.30+18y=1.68

<span>33y=1.98    y=0.06</span>

Z=8*0.06=0.48

X=0.06-0.02=0.04

Costs

Postcards------------0.04 dolars/ 4 cents

Envelopes------------0.06 dolars/ 6 cents

<span>Notepad--------------0.48 dolars/ 48 cents</span>

3 0
4 years ago
Mrs. Wheeler had a bowl of M&amp;M’s sitting on her table. Her daughter Lauren told her that she thought there were 100 M&amp;M’
laiz [17]

There was 33.3% error in her calculation.

Step-by-step explanation:

Approx value thought by Lauren = 100

Exact value counted = 75

Percent error = \frac{|approx-exact|}{exact}*100

Percent\ error=\frac{|100-75|}{75}*100\\\\Percent\ error=\frac{|25|}{75}*100\\\\Percent\ error=\frac{2500}{75}\\\\Percent\ error=33.33\%

Rounding off to nearest tenth;

Percent error = 33.3%

There was 33.3% error in her calculation.

Keywords: percentage, error

Learn more about errors at:

  • brainly.com/question/8224301
  • brainly.com/question/8280736

#LearnwithBrainly

8 0
3 years ago
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