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mihalych1998 [28]
3 years ago
15

Someone please help me im so confused​

Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
7 0
Answers:11

That’s the answer like the other person said
ivann1987 [24]3 years ago
5 0

Answer:

x=11

Step-by-step explanation:

5x+62=3x+47+37

5x+62=3x+84

2x=22

x=11

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Solve each system of linear or non-linear equations. Show all work!!<br> 3x - 4y = 13<br> 2x + y = 5
OLga [1]
Answer: See below

Explanation:

3x - 4y = 13 (1)
2x + y = 5 (2)
——————
3x - 4y = 13
4(2x + y = 5) (2) times 4
——————-
3x - 4y = 13
8x + 4y = 20
——————-
11x = 33
x = 33/11
x = 3

Plug x = 3 in (2):

2(3) + y = 5
6 + y = 5
y = 5-6
y = -1

Thus, x = 3 and y = -1
6 0
3 years ago
What is the sST for the data set (1, 5), (2, 8), (4, 14)?<br><br> 14<br> 42<br> 25<br> 9
ohaa [14]

Answer:

42

Step-by-step explanation:

SST = ∑ ( y − ¯ y ) ² (¯ y = mean of y values)

¯ y = (5+8+14)/3 = 27/3 = 9

∑ ( y − ¯ y ) ² =  ( 5 − 9 ) ² +  ( 8 − 9 ) ² +  ( 14 −9 ) ²

=  (  − 4 ) ² +  (  − 1 ) ² +  ( 5 ) ²

= 16 + 1 + 25

= 42

7 0
3 years ago
the length of a rectangular frame is 15 inches and the width of 8 inches. what is the length of a diagonal of this Fram inches
Rashid [163]

Answer:

using the phytogaran theory we get 17 inch as the length of the diagonal

4 0
2 years ago
Read 2 more answers
What is the first step in solving the equation 4.2y-5.2=18.5
Reil [10]
Add 5.2 then divide
4 0
2 years ago
Check all that apply. pi/4 is the reference angle for:
ANEK [815]

Answer:

answer is c

I took a quiz with the question and got 100%

3 0
1 year ago
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