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Inga [223]
1 year ago
11

Simplify the following expression.

Mathematics
2 answers:
lidiya [134]1 year ago
7 0

Answer:

C: 51X+42Y

13x + 38x + 9y + 33y

adding,

51x + 42y so option C

BlackZzzverrR [31]1 year ago
4 0
1) take away the brackets and distribute the plus:
13x + 9y + 38x + 33y

2) add the like terms
13x + 38x + 9y + 33y
= 51x + 42y
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Select each expression that is equivalent to 5(n + 4).
MA_775_DIABLO [31]

Answer:

B and C and D

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME I NEED TO KNOW THIS LIKE NOW ITS SUPER IMPORTANT
pashok25 [27]

Answer:

the information is in the theorem itself and to prove it set up an equation in the same format the theorem uses and test it.

Step-by-step explanation:


5 0
3 years ago
What two numbers add to 15 and multiply to negative 312?
natima [27]
X + y = 15
xy = -312

     x + y = 15
x - x + y = -x + 15
           y = -x + 15

                                           xy = -312
                               x(-x + 15) = -312
                           x(-x) + x(15) = -312
                                 -x² + 15x = -312
                       -x² + 15x + 312 = 0
           -1(x²) - 1(-15x) - 1(312) = 0
                    -1(x² - 15x + 312) = 0
                                  -1              -1
                          x² - 15x + 312 = 0
                          x = -(-15) ± √((-15)² - 4(1)(312))
                                                  2(1)
                          x = 15 ± √(225 - 1248)
                                               2
                          x = 15 ± √(-1023)
                                         2
                          x = 15 ± 31.984i
                                         2
                          x = 7.5 ± 15.992
                          x = 7.5 + 15.992    or    x = 7.5 - 15.992
                          x = 23.492        or         x = -8.492

              x + y = 15
     23.492 + y = 15
   - 23.492        - 23.492
                    y = -8.492
              (x, y) = (23.492, -8.492)

                      or

              x + y = 15
     -8.492 + y = 15
   + 8.492         + 8.492
                   y = 23.492
             (x, y) = (-8.492, 23.492)

The two numbers that add up to 15 and mutliply to -312 are -8.492 and 23.492.
6 0
3 years ago
Karen and bill collector coins Karen has x coins but Bill has eight coins fewer than three times the number of coins Karen has t
zhuklara [117]
Bill y= 3x-8
In total; y= 4x-8+x
???
8 0
3 years ago
4≤n−4. a little help?
saveliy_v [14]

Answer:

Just isolate the variable by performing inverse operations. Its like solving an equation but the sign is different.

Step-by-step explanation:

Well add 4 to both sides

8≤n

Thats basically it

5 0
3 years ago
Read 2 more answers
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