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andrew-mc [135]
3 years ago
10

−4−5+4+(−5)minus, 4, minus, 5, plus, 4, plus, left parenthesis, minus, 5, right parenthesis.

Mathematics
1 answer:
Tema [17]3 years ago
3 0

Answer: -10

Step-by-step explanation: For this problem we will solve the numbers in order.

-4 - 5 + 4 + (-5)

First subtract -4 - 5, which will give you -9. Then add -9 to 4, which will give you -5. Lastly add -5 plus -5, which will give you an answer of -10.

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Azul bought 10 reams of paper at the store for a total of $84 the tax on the purchase was $4 what was the cost of each room of p
bogdanovich [222]
He paid 10 for each ream so
10r
Then there was a 4 dollar tax so
10r+4
the total was 84
10r+4=84
5 0
3 years ago
Please, someone help? ​
anzhelika [568]

Answer:

x = -5 + \sqrt{26}

Step-by-step explanation:

f(x) = x² + 10x - 1

        x² + 10x = 1

        x² + 10x + 25 = 1 + 25

        (x + 5)² = 26

take the square root of each side to get:

        x + 5 = √26

        x = √26 - 5  or -5 + √26

       

4 0
3 years ago
Draw the graph for f(x)=x-1/x^2-x-6 and state:a. the x-intercept(s).b. the y-intercept.c. the equation(s) of any vertical asympt
Zigmanuir [339]

ANSWER:

a. (1, 0)

b. (0, 1/6)

c. x = -2. x = 3

d. y = 0

e. The asymptotes have the form of a line and divide the function into 3 parts.

f.

\begin{equation*} \text{Domain: }\left(-\infty\:,\:-2\right)\cup\left(-2,\:3\right)\cup\left(3,\:\infty\:\right) \end{equation*}

g.

\text{Range}(-\infty,\infty)

STEP-BY-STEP EXPLANATION:

We have the following function:

f\left(x\right)=\frac{x-1}{x^2-x-6}

The graph corresponding to the function is the following:

We determine in each case what the statement asks for, like this:

a. the x-intercept(s):

\begin{gathered} \text{ in this case y = 0, therefore:} \\  \\ \frac{x-1}{x^2-x-6}=0 \\  \\ x-1=0\cdot(x^2-x-6) \\  \\ x=1 \\  \\ \text{The x-intercept is \lparen1, 0\rparen} \end{gathered}

b. the y-intercept:

\begin{gathered} \text{ in this case x = 0, therefore } \\  \\ y=\frac{0-1}{0^2-0-6} \\  \\ y=\frac{-1}{-6} \\  \\ y=\frac{1}{6} \\  \\ \text{ The y-intercept is }\:\left(0,\frac{1}{6}\right) \end{gathered}

c. the equation(s) of any vertical asymptote(s). The horizontal asymptotes are the values that x cannot take since the function would be discontinuous for those values.

In this case, since it is a rational function, it would be when the denominator is 0, therefore, we solve the following:

\begin{gathered} x^2-x-6=0 \\  \\ (x-3)(x+2)=0 \\  \\ x-3=0\rightarrow x=3 \\  \\ x+2=0\operatorname{\rightarrow}x=-2 \\  \\ \text{ The equation\lparen s\rparen of any vertical asymptote are:} \\  \\ x=3,x=-2 \end{gathered}

d. the equation of the horizontal asymptote. If the degree of the denominator is greater than that of the numerator, the horizontal asymptote is the x-axis, that is:

y=0

e. information about the behavior at the asymptote(s).

In this case the behavior of the asymptotes are straight lines that represent values that the function cannot take or cannot reach, divide the function into 3 parts.

f and g.

In this case, the domain is the interval of values that x can take and the range is the interval of values that y can take.

Therefore:

\begin{gathered} \text{Domain: }\left(-\infty\:,\:-2\right)\cup\left(-2,\:3\right)\cup\left(3,\:\infty\:\right) \\  \\ \text{Range:}\:\left(-\infty\:,\:\infty\:\right) \end{gathered}

8 0
1 year ago
How do you find the number of degrees in a third angle of a triangle
Setler79 [48]

every triangle must equal 180 degrees so add the other two angles and subtract by 180 to get that angle

Hope this helps :)


3 0
3 years ago
What is the length of PR?
kicyunya [14]

Answer:

8\sqrt{3}

Step-by-step explanation:

2/3 pi radians =   2/3 * 180 =  2  * 60 =  120 degrees

split triangle in half:

30, 60, 90  triangle

1/2 PR= 4 root   3

7 0
3 years ago
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