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shtirl [24]
3 years ago
15

Help me please It about linear equations

Mathematics
1 answer:
marin [14]3 years ago
5 0

Answer:

Hours:         Elevation:

0                  3000

2                  2000

5                  500

Step-by-step explanation:

Time is always placed on the x (horizontal) axis, and the dependent variable on the y. Just find the number given and find the corresponding value to go with it! Hope this helps :)

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Find the missing dimension. Use the scale factor 1 : 12.
erastova [34]

Answer:

0.0

Step-by-step explanation:

7 0
4 years ago
K=10t−19<br> Find the output, k, when the input, t is, -7.
aalyn [17]
K= 10(-7) -19
k= -70-19
k=-89
4 0
3 years ago
A survey was conducted that asked 1003 1003 people how many books they had read in the past year. results indicated that x overb
kirill115 [55]
The confidence interval is

10.5\pm1.35 = (9.15, 11.85).  This means that we can be 99% confident that the mean number of books people read lies between 9.15 and 11.85.

To find the confidence interval, we first find the z-score associated with it:

Convert 99% to a decimal:  0.99
Subtract from 1:  1-0.99=0.01
Divide by 2:  0.01/2 = 0.005
Subtract from 1:  1-0.005 = 0.995

Using a z-table (http://www.z-table.com) we see that this is associated with a z-score between 2.57 and 2.58.  Since both are equally far from this value we will use 2.575.

We calculate the margin of error using

ME=z*\frac{s}{\sqrt{n}}&#10;\\&#10;\\=2.575*\frac{16.6}{\sqrt{1003}}=1.35

This means that the confidence interval is
10.5\pm1.35

The lower limit is given by 10.5-1.35 = 9.15.
The upper limit is given by 10.5+1.35 = 11.85
5 0
3 years ago
3(-1)(-1) - 2x-1x-2 + 4(-2)(-2)
BaLLatris [955]
-3x+17 because you want to simplify first by multiplying each term and then you combine like terms(x) and then you write the variable first
3 0
4 years ago
The movie theater has 250 seats, 225 seats were sold for the movie. What percent of the seats were not sold?
Igoryamba

Answer:

D. 10%

Step-by-step explanation:

First divide 250 by 10 to get how many seats are in 10%.

250/10 = 25

Then, divide 225 by 25 to see what percent was taken up.

225/25 = 9

9 x 10 = 90

100 = 90 = 10

Therefore, 10% of the seats were not sold.

5 0
4 years ago
Read 2 more answers
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