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3 years ago

Write an expression equivalent to -9y + 2x + 3 - 7x + 4y.

Mathematics

1 answer:

inessss [21]3 years ago

6 0

Answer:

-5y - 5x + 3 EASY MATH

Step-by-step explanation: Because its just easy

GIVE BRAINLEIST WHEN U CAN PLEASE

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What is the gcf of 8 and 16

Gennadij [26K]

to get GCF find what divide into both numbers

2 | 8 16

4 | 4 8

1 2

now multiply the numbers on the side 2 x 4 = 8 that's the GCF

5 0

4 years ago

Read 2 more answers

I WILL MARK BRAINLIEST!!

Stels [109]

Answer:

9 inches

Step-by-step explanation:

The population is within 6 standard deviations of the mean with a confidence of 99.7 percent, 3 above and 3 below

The standard deviation of the sample mean is equal to the population standard deviation divided by the square root of the sample size

population standard deviation = 36

sample size = 144

standard deviation of the sample mean = 36/ sqrt(144)

=36/12

The margin of error is the number of standard deviations above the mean * the standard deviations

margin of error = 3 * 3

= 9 inches

8 0

3 years ago

The following six independent length measurements were made (in feet) for a line: 736.352, 736.363, 736.375, 736.324, 736.358, a

horrorfan [7]

Answer:

Assuming population data

$\sigma = \sqrt{0.000354}=0.0188$

Assuming sample data

$s = \sqrt{0.000425}=0.0206$

Step-by-step explanation:

For this case we have the following data given:

736.352, 736.363, 736.375, 736.324, 736.358, and 736.383.

The first step in order to calculate the standard deviation is calculate the mean.

Assuming population data

$\mu = \frac{\sum_{i=1}^6 X_i}{6}$

The value for the mean would be:

$\mu = \frac{736.352+736.363+736.375+736.324+736.358+736.383}{6}=736.359$

And the population variance would be given by:

$\sigma^2 = \frac{\sum_{i=1}^6 (x_i-\bar x)}{6}$

And we got $\sigma^2 =0.000354$

And the deviation would be just the square root of the variance:

$\sigma = \sqrt{0.000354}=0.0188$

Assuming sample data

$\bar X = \frac{\sum_{i=1}^6 X_i}{6}$

The value for the mean would be:

$\bar X = \frac{736.352+736.363+736.375+736.324+736.358+736.383}{6}=736.359$

And the population variance would be given by:

$s^2 = \frac{\sum_{i=1}^6 (x_i-\bar x)}{6-1}$

And we got $s^2 =0.000425$

And the deviation would be just the square root of the variance:

$s = \sqrt{0.000425}=0.0206$

6 0

3 years ago

Amembership to the gym costs $ 25 per person in 1995 .the membership cost has increased by an average of $ 6 per person for each

Step2247 [10]

Answer:6x+25

109

Step-by-step explanation:

X is the amount of years since 1995

2009 is 14 years so plug in 14 for x and solve

4 0

4 years ago

Find the sum of.....

tester [92]

Answer:wrhn

Step-by-step explanation:

4 0

3 years ago