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dlinn [17]
3 years ago
12

Draw the contour lines (in the positive quadrant) for this function for Y = 4, Y = 5, and Y = 10. What do we call the shape of t

hese contour lines? Where does the line 20X + 10Z = 200 intersect with the contour lineY = 50

Mathematics
1 answer:
Lilit [14]3 years ago
6 0

Answer:

The sketches are drawn.

Step-by-step explanation:

We use site geogebra.org to drawn contour lines for this function for

Y = 4, Y = 5, and Y = 10. We conclude that are the planes.

We use site geogebra.org to drawn the line 20X + 10Z = 200 and  line Y = 50.  We conclude that the given planes intersect at point A(10,50,0).

The first image refers to the first part of the task, while the second image refers to the second part of the task.

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Twice jack’s age plus 5 is 21.write and solve an equation.how old is jack
Vedmedyk [2.9K]

Answer:

  8

Step-by-step explanation:

If j represents Jack's age, we have ...

  2j +5 = 21

  2j = 16 . . . . . . subtract 5

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Jack is 8 years old.

4 0
2 years ago
I will give 60 point to answer all my questions .Hello can someone Help? It math I would really appreciate! But please please DO
Allisa [31]

Answer:

1) C

2)C

3)B

4)A

Step-by-step explanation:

1) Circle

Solve for area

A≈28.27cm²

d=Diameter 6cm

Using the formulas

A=πr2

d=2r

Solving for A

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4πd2=1

4·π·62≈28.27433cm²

2)

To calculate 5% of a number, simply divide 10% of the number by 2. For example, 5% of 230 is 23 divided by 2, or 11.5.

4 0
3 years ago
Solve 2x2 − 8x = −7.
leva [86]
\sf 2x^2 - 8x = - 7  \\  \\ Subtract \ -7 \ from \ both \ sides \ of \ the \ equation. \\  \\ 2x^2 - 8x - (-7 ) = - 7 - (-7)  \\  \\ 2x^2 - 8x + 7 = 0  \\  \\ Use \ quadratic \ formula \ a = 2, b = -8, c = 7 \\  \\ x =  \dfrac{- b \pm \sqrt{b^2- 4ac} }{2a}  \\  \\  \\ x =  \dfrac{-(-8) \pm \sqrt{(-8)^2 - 4 (2) (7) } }{2(2)}  \\  \\ x =  \dfrac{8 \pm  \sqrt{8} }{4}  \\  \\ x = 2 +  \frac{1}{2}\sqrt{2} \ or \ x = 2 +  \frac{-1}{2}  \sqrt{2}

Ur answer is the fourth one 



7 0
4 years ago
Read 2 more answers
Please help me on 3 and 4 please thanks ❤️
Fed [463]
For the perimeter, we can literally count 8 sides, and since we have 6 inches per side, 6 added to itself 8 times or 6*8=48

Since we know that there are 12 inches in a foot, and 12 feet, we have 
\frac{12inches}{1foot} * 12feet=144 inches

Feel free to ask with any further questions!
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4 years ago
Please help brainliest incuded for correct answer
Ronch [10]

Answer:

13 / 2 is the answer in fraction and 6.5 in decimal.

hope this answer will help you

6 0
3 years ago
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