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3 years ago

Can some one help me with this I don’t get it 3+-7=

Mathematics

2 answers:

katovenus [111]3 years ago

7 0

Answer:

3+-7=-4

Step-by-step explanation:

it is the same thing as -7+3. -7 is a negative number and 3 is a positive number, minus multiplied by addition will give you minus so -7+3=-4

lakkis [162]3 years ago

3 0

Answer:

-4

Step-by-step explanation:

3 + - 7

When you these signs together, + and -, or - and +, whatever order it is it remains the same

+ and - always becomes negative

Here you have 3 + - 7

The +- becomes negative (-)

You end up with 3 - 7, or -7 + 3, as the 3 is positive

-7 + 3 = -4

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Use a graphing calculator or other technology to answer the question.

WITCHER [35]

Using a calculator and considering the given data, the quadratic regression equation that best fits the given data is:

y = -0.002x² - 2.051x + 31.179

<h3>How to find the equation of quadratic regression using a calculator?</h3>

To find the equation, we need to insert the points (x,y) in the calculator of quadratic regression.

In this problem, the points to be inserted are as follows:

(0, 31), (1,29), (2, 28), (4,22), (6,19), (10, 11), (11,8).

Inserting these points, the equation is given by:

y = -0.002x² - 2.051x + 31.179

More can be learned about regression equations at brainly.com/question/27895782

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3 0

2 years ago

18ft wide 27 ft long. what is the area

AysviL [449]

Area = L x W

So, you would do 18 x 27.

18 x 27 = 486

Glad I could help, and good luck!

6 0

3 years ago

Read 2 more answers

The number of errors in a textbook follow a poisson distribution with a mean of 0.01 errors per page. what is the probability th

neonofarm [45]

Mean number of errors in each page = 0.01
Mean number of errors in 100 pages = 0.01*100=1

It is possible to use the cumulative distribution function (CMF), but the math is a little more complex, involving the gamma-function. Tables and software are available for that purpose.

Thus it is easier to evaluate with a calculator for the individual cases of k=0,1,2 and 3.

The Poisson distribution has a PMF (probability mass function)

$P(k):=\frac{\lambda^ke^{-\lambda}}{k!}$
with λ = 1
=>
$P(0):=\frac{1^0e^{-1}}{0!}=0.3678794$
$P(1):=\frac{1^1e^{-1}}{1!}=0.3678794$
$P(2):=\frac{1^2e^{-1}}{2!}=0.1839397$
$P(3):=\frac{1^3e^{-1}}{3!}=0.0613132$
=>
$P(k$
or
P(k<=3)=0.9810 (to four decimal places)

3 0

3 years ago

-8 + 8g = 56 work and answer

Vadim26 [7]

Answer:

g=8

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

6 0

3 years ago

Manny bought a two liter bottle of soda. He poured 1/4 of the bottle into his cup. How much soda does Manny have left in the bot

Gre4nikov [31]

3/4 left or 0.75% left because there is 100%/4 = 0.25

7 0

3 years ago