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NARA [144]
3 years ago
9

Evaluate the exponential function when x=2 and y=-(1/3)^x

Mathematics
1 answer:
andrew-mc [135]3 years ago
6 0
Plug in the given value of x in the equation
y=-(1/3)^2
  = -1/9      
(because 3^2=9 and 1^2=1)
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Find the missing side of this right a triangle?<br> help pls
yaroslaw [1]

Hi, there!

 _____

To find the missing side length of this triangle (which is a <em>right</em> triangle), we'll use Pythagoras' Theorem.

-\!\!\!-\!\!\!-\!\!\!\longrightarrow\boldsymbol{a^2+b^2=c^2}

Here,

\textsc{legs:}\begin{cases} \bold{a}\\\bold{b} \end{cases}

Hypotenuse (the longest side): c

We know that

\bold{a=2 \ and \ b=28}

So, we can substitute our parameters, and solve for c.

\bold{2^2+28^2=c^2} -\!\!\!-\!\!\!-\!\!\!\longrightarrow square 2 and 28

\bold{4+784=c^2} -\!\!\!-\!\!\!-\!\!\!\longrightarrow add the numbers

\bold{788=c^2} -\!\!\!-\!\!\!-\!\!\!\longrightarrow square root both sides

\bold{\sqrt{788}=c}

Hope the answer - and explanation - made sense,

happy studying!!

6 0
2 years ago
The equations y = 30x + 10 and y = –x2 + 150x + 10 model the daily sales of two car models, where x represents the number of day
yuradex [85]

Answer:

  day 0, day 120

Step-by-step explanation:

You want to find the value of x that makes both y-values be the same:

  y = y

  30x +10 = -x^2 +150x +10

  x^2-120x = 0 . . . . subtract the right side of the equation

  x(x -120) = 0 . . . . . factor

Values of x that make this true are x=0 and x=120.

The same number of each car was sold on day 0 and day 120.

7 0
3 years ago
NEED ANSWER IN LESS THAN 10 MINS!!
Naddik [55]
Heyehejrjrjjdnsnnsne
5 0
3 years ago
How do I do this? (Will give brainliest) (explanation if you could)
Liula [17]
Take a photo of your screen and chose either word or math
6 0
3 years ago
Read 2 more answers
The total charge on 8 particles is −56 units. All the particles have the same charge.
kirza4 [7]
You have to divide negative fifty-six by eight to get the charge on each particle. So you do -56/8. Which gives you negative seven as the answer. 
Answer = -7
5 0
3 years ago
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