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Lostsunrise [7]
3 years ago
7

Evaluate the expression when x=-2 and y=3. -y+8x 0 Х 5 ?

Mathematics
1 answer:
FromTheMoon [43]3 years ago
8 0

Answer:

Step-by-step explanation:

First here is the problem

-y + 8x

nwo that u have the problem substitute the variables with numbers...see example

-3  +  (8) (-2)

Then Order of operations do the multiplication...so see example below

-3 + (16)   Its negative -16 because a positive and negative when multiplied is          negative

Now -3 + 16 = 13

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Please help I have no idea what the answer is
coldgirl [10]

Answer:

x = 34

Step-by-step explanation:

This is a right angle. This means that the square to the bottom right is 90 degrees. There is also an angle that is 124, but that is a linear pair to the angle on the inside. This means that 124+__=180 degrees

180-124= 56

So now we know 2 angles, which are 90 degrees and 56 degrees. Because we know that the sum of the angles of a triangle equal 180 degrees, we can subtract 90 and 56 from 180 to get our answer, 34.

3 0
3 years ago
Consider the following proability density function: f(x) = { kx. 0<= x< 2, k(4-x). 2<= x <=4, 0. otherwise. find the
Gnesinka [82]

The value of K for which f(x) is a valid probability density function is 1/4.

<h3>How to solve for the value of K</h3>

\int\limits^4_0 {fx(x)} \, dx =1

\int\limits^2_0 {Kx} \, dx +\int\limits^4_2 {K(4-x)} \, dx =1

K[\frac{2^2}{2} -0]+[K[4(4-2)-(\frac{4^2}{2} -\frac{2^2}{2} )]=1

open the equation

K\frac{4}{2}+K[8 - (\frac{16}{2}  -\frac{4}{2} )] = 1\\

2K+K[\frac{4}{2} ]=1

2K + 2K = 1

4K = 1

divide through by 4

K = 1/4

Read more on probability density function here

brainly.com/question/15714810

#SPJ4

4 0
1 year ago
At a currency exchange, 11 U.S. dollars can be exchanged for 10 Euros. How many Euros will you receive for 1 U.S. dollar?
boyakko [2]
You are given
.. 11 dollars = 10 euros

Divide this equation by 11 to find the euro value of 1 dollar
.. 1 dollar = 10/11 euros

About 0.91 euros


___
The decimal equivalent of 10/11 is the repeating decimal fraction 0.909090...
4 0
3 years ago
2x+ 20 + 3x +40 =<br> 60 + 5X
umka21 [38]
First answer: 160
Second answer: 300
6 0
3 years ago
Cindy has 26 nickels. She is getting rolls of nickels from the bank. She has enough money to get up to 10 rolls of nickels and e
Anna11 [10]
The answer is C I think 
4 0
3 years ago
Read 2 more answers
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