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tresset_1 [31]
3 years ago
7

-6x-4+5x=4 What is "x". Please show your work.

Mathematics
2 answers:
4vir4ik [10]3 years ago
5 0

Answer:

first thing to do is combine like terms

now you would have -x-4=4

this is because you added -6x+5x

now you would add 4 to each side

now you would have-x=8

then you would divide the negative because x has to be positive

now you would have x= -8

that is your answer. if you any questions just ask :D

Step-by-step explanation:

BARSIC [14]3 years ago
3 0

Answer:-6x-4+5x=4

-x-4=4

-x. =4+4

-x. =8

-x/-1= 8/-1

Therefore x = -8

Step-by-step explanation:

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xenn [34]

Answer:   17.5 square yards

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Work Shown:

base = 5 yards

height = 7 yards

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area of triangle = 0.5*(5)*(7)

area of triangle = 17.5 square yards

The other values aren't used. They're likely thrown in as a distraction.

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CaHeK987 [17]
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5 0
3 years ago
Solve the following system of equations and show all work.<br> y = 2x^2 +9x<br> y = 4x + 25
Genrish500 [490]

Answer:

x = 5/2 thì y = 35 và x = -5 thì y = 5

Step-by-step explanation:

thay y = 4x + 25 vào phương trình y = 2x ^ 2 + 9x ta có:

4x + 25 = 2x ^ 2 + 9x

⇒2x ^ 2 + 5x - 25 = 0

⇒ x = 5/2 và x = -5

thay x = 5/2 vào phương trình y = 4x + 25 ⇒ y = 4*(5/2) + 25 = 35

thay x = -5 vào phương trình y = 4x + 25 ⇒ y = 4*(-5) + 25 = 5

7 0
3 years ago
1. A test-tube has a diameter of 3cm. How many turns would a piece of thread of length
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Step 1) Find the circumference

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C = 3.14 x 3

C = 9.42

Step 2) Divide the length of the string by the circumference

90.42 / 9.42 = 9.5987

The string would make approximately 9.60 turns around the test tube.

Hope this helps!! :)

6 0
2 years ago
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