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mars1129 [50]
2 years ago
14

Find the value of z in the following equation. z + 3z + 25 = 125

Mathematics
2 answers:
stellarik [79]2 years ago
7 0

Answer: 25

Step-by-step explanation:

Combine like terms

z + 3z + 25 = 125

4z + 25 = 125

Subtract 25 on both sides

4z = 100

z = 25

Y_Kistochka [10]2 years ago
3 0

Answer:

25

Step-by-step explanation:

z+3z+25=125

4z=100

z=25

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Darina [25.2K]

Answer:

a) The estimates for the solutions of 4\cdot x^{2}-4\cdot x -1 = 0 are x_{1}\approx -0.25 and x_{2} \approx 1.25.

b) The estimates for the solutions of 4\cdot x^{2}-4\cdot x -1 = 2 are x_{1}\approx -0.5 and x_{2} \approx 1.5

Step-by-step explanation:

From image we get a graphical representation of the second-order polynomial y = 4\cdot x^{2}-4\cdot x -1, where x is related to the horizontal axis of the Cartesian plane, whereas y is related to the vertical axis of this plane. Now we proceed to estimate the solutions for each case:

a) 4\cdot x^{2}-4\cdot x -1 = 0

There are two approximate solutions according to the graph, which are marked by red circles in the image attached below:

x_{1}\approx -0.25, x_{2} \approx 1.25

b) 4\cdot x^{2}-4\cdot x -1 = 2

There are two approximate solutions according to the graph, which are marked by red circles in the image attached below:

x_{1}\approx -0.5, x_{2} \approx 1.5

5 0
3 years ago
Can someone help me please.​
wolverine [178]

9514 1404 393

Answer:

  a=\sqrt{33}

Step-by-step explanation:

The Pythagorean theorem tells you that the area of the square with side 'a' is the difference of the areas of the other two squares.

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5 0
3 years ago
What is the mode for the following set of numbers 1,1,2,2,2,3,3,4
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Mode = 2
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5 0
2 years ago
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Answer:

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Step-by-step explanation:

Just set up a simple equation.

3 0
2 years ago
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dalvyx [7]
Answer: a bigger or equal to 20

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8a - 40 _> 5a + 20

3a _> 60

a _> 20
3 0
3 years ago
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