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Elina [12.6K]
3 years ago
9

Help me asap lol geometry class

Mathematics
1 answer:
Kobotan [32]3 years ago
7 0

Answer:

x is 35° more degrees than z

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Find the solution to this system of equations x+y=1<br> 2x-y+z=1<br> x+2y+z=8/3
drek231 [11]

9514 1404 393

Answer:

  (x, y, z) = (1/3, 2/3, 1)

Step-by-step explanation:

We can use the first equation to write an expression for x that can be substituted into the other equations.

  x = 1 -y

  2(1 -y) -y +z = 1   ⇒   -3y +z = -1

  (1 -y) +2y +z = 8/3   ⇒   y +z = 5/3

Subtracting the first of these equations from the second gives ...

  (y +z) -(-3y +z) = (5/3) -(-1)

  4y = 8/3

  y = 2/3

  z = 5/3 -y = 1

  x = 1 -y = 1/3

The solution is (x, y, z) = (1/3, 2/3, 1).

4 0
3 years ago
Write a function that is passed in a positive integer, n, and sum up all the digits from 1 to n, doubling the even numbers. In o
olya-2409 [2.1K]

Answer:

Written in Python

def sums(n):

    total = 0

    for i in range(1,n+1):

         if i%2 == 0:

              total = total + i*2

         else:

              total = total + i

    return(total)

Step-by-step explanation:

The function is written in Python

def sums(n):

This initializes total to 0

    total = 0

This iterates through the integers that makes up n i.e. 1,2,3.....n

    for i in range(1,n+1):

This checks if current digit is even

         if i%2 == 0:

If yes, it adds the double of the digit

              total = total + i*2

         else:

If otherwise, it adds the digit

              total = total + i

This prints the calculated sum or total

    return(total)

To call the function from main, use the following:

print(sums(n))

Where n is a positive integer. i.e. n \geq 1

6 0
3 years ago
A train travels 120 miles in 1.5 hours. At this rate how far will the train travel in 6 hours
levacccp [35]
480 miles in 6 hours
8 0
4 years ago
Read 2 more answers
What is the simplest form of 20/100
navik [9.2K]
Divide both numbers by 20

20/20 and 100/20= 1/5

So 1/5 is the answer


4 0
3 years ago
Read 2 more answers
Work out the value of N when a=2 and b=3<br><br>N = 4a + 6b ​
stepladder [879]

Answer:

26

Step-by-step explanation:

N = 4a + 6b ​

Let a=2 and b=3

N = 4*2 + 6*3

Multiply

N = 8+18

Add

N =26 ​

4 0
3 years ago
Read 2 more answers
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