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meriva
3 years ago
13

Answer all those 4 question

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
7 0
4. 11/3 = 3.667, so 3 in 1 and 4 in 2
5. 11 minutes
6. 33 minutes
7. 36 minutes
i think ;)
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PLEASE HELP ASAP 35 PTS + BRAINLIEST TO RIGHT/BEST ANSWER
Semenov [28]

Answer:

(5,2,2)

Step-by-step explanation:

-3x+4y+2z = -3

2x-4y-z=0

y = 3x-13


Multiply the second equation by 2

2*(2x-4y-z)=0*2

4x -8y -2z =0

Add this to the first equation to eliminate z

-3x+4y+2z = -3

4x -8y -2z =0

-------------------------

x -4y = -3

Take the third equation and substitute it in for y

x - 4(3x-13) = -3

Distribute the 4

x - 12x +52 = -3

Combine like terms

-11x +52 = -3

Subtract 52 from each side

-11x +52-52 = -3-52

-11x = -55

Divide by -11

-11x/-11 = -55/-11

x=5

Now we can solve for y

y =3x-13

y =3*5 -13

y = 15-13

y=2

Now we need to find z

2x-4y-z=0

2(5) -4(2) -z=0

10-8 -z=0

2-z=0

Add z to each side

2-z+z= 0+z

2=z

x=5, y=2, z=2

(5,2,2)

3 0
3 years ago
Find the area of the composite figure
-BARSIC- [3]

Answer:

48 ft^2

Step-by-step explanation:

5.5 times 6 equals 33 (larger square part)

2.5 times 6 equals 15 (two triangles combined so you dont have to 1/2)

4 0
3 years ago
Evaluate 17 + x<br> when x = 16
Vesnalui [34]
Answer: 17+ 16 = 33

Good luck !
3 0
3 years ago
Alguem me ajuda<br>por favor​
andre [41]

Answer:

sorry I'm confused boy sorryy

6 0
3 years ago
Write down the 1st term in the sequence given by: T(n)=n2(squared) +3
Citrus2011 [14]
(n) stands for natural number. Natural numbers are counting numbers such as 1, 2, 3, 4, 5, 6, 7 etc...

So the first term in the sequence would be:

T(1)=1^2 + 3 = 1 + 3 = 4

Answer:

4
5 0
3 years ago
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