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Anni [7]
3 years ago
9

-7+(-3) SHOW WORK PLEASE HURRY

Mathematics
1 answer:
DENIUS [597]3 years ago
7 0

Answer:

-10

Step-by-step explanation:

-7+(-3)= -7-3

= -(7+3)

= -10

Side note: Do you not have a caculator?

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Complete the square and give a substitution (not necessarily trigonometric) which could be used to compute the integral. ∫1x2+2x
Ugo [173]

Answer:

Substitution of x+1

Step-by-step explanation:

We are given that

\int \frac{1}{x^2+2x+2}dx

\int\frac{1}{(x^2+2x+1)+1}dx

\int\frac{1}{(x+1)^2+1^2}dx

By using identity

(a+b)^2=a^2+b^2+2ab

Substitute x+1=t

Differentiate w.r.t x

dx=dt

Substitute the values

\int\frac{1}{t^2+1^2}dx

\frac{1}{1}tan^{-1}\frac{t}{1}+C

By using formula :\int\frac{1}{x^2+a^2}dx=\frac{1}{a}tan^{-1}\frac{x}{a}+C

tan^{-1}(x+1)+C

5 0
3 years ago
Which is equivalent to 2 5/6?
White raven [17]
I think it would be 12/5 that is what I think
8 0
2 years ago
A distributor of cosmetics has sales representatives in various metropolitan areas all over the country. They have collected dat
kompoz [17]

Answer:

The results are given by:___________.

the equation, y = ax+b.

where a = the slope of the line and b is the intercept or the value of Y when X = 0.

Step-by-step explanation:

The simple linear regression is a model for estimating the relationship that exists between an independent variable and a dependent variable.  The model uses a straight line for two quantitative variables.  With a scatter graph, the line of best fit is given as the equation, y = bX + a.  This equation determines the values of b and a for a dataset of two variables.  It can also be used to estimate the value of Y for a given value of X.

8 0
3 years ago
Find the slope-intercept form of an equation of the line perpendicular to the graph of x - 3y = 5 and passes through (0,6).
marissa [1.9K]

Answer:

the desired equation is y = -3x + 6.

Step-by-step explanation:

1) Rewrite x - 3y = 5 in slope-intercept form:  x - 5 = 3y, or y = (1/3)(x - 5)

2) Identify the slope of the given line.  It is (1/3).

3) Find the slope of a line perpendicular to this one.  It is the negative reciprocal of (1/3), or -3.

4) Use the slope-intercept form of the equation of a straight line, y = mx + b, to determine the b value and thus the equation of the perpendicular line:

6 = -3(0) + b.  Then b = 6, and the desired equation is y = -3x + 6.

7 0
4 years ago
What is -2847849+39476 divided by 409
zhenek [66]
Using order of operation. First divide 39476/409 then add -2847849 is -2847752.48166
8 0
3 years ago
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