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serg [7]
2 years ago
9

My other equation for a dfferent problem is 1+y=-4/5x-2 ​

Mathematics
1 answer:
slava [35]2 years ago
5 0

Answer:

y-intecept= positive 6

slope is 3/8

Step-by-step explanation:

y−6= 3/8x This is standard form

change to slope-intercept form

y=mx+b

m=slope

b=y-intercept

y= 3 /8 x+6

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The pipe has a length 29cm, internal diameter 6.5cm and thickness 0.5cm. What is the Volume
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Answer:

Length of pipe = 21 cm

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Volume of pipe =\frac{22}{7} (2.5)^2 (21)-\frac{22}{7}(2)^2(21)=148.5 cm^3

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The thickness of a metal pipe is 1.5cm. The inner diameter is 21cm. What is the volume of metal required for a pipe of length 7cm

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2 years ago
Consider the quadratic equation: 5x2 + 2x + 1 = 0. 1) Which statement is true about the roots of the given quadratic equation? A
IRINA_888 [86]

Hello!

In math, there is always something called the discriminant. This is represented by the equation b^{2} -4ac, when a quadratic = ax^{2} + bx + c. The discriminant tells you what roots an equation has. A discriminant of over 0 represents 2 real roots, a discriminant of 0 = 1 real root, and a discriminant of <0 is 0 real roots (2 complex roots)

Now, substitute in the values and solve. In this equation, a = 5, b = 2, c = 1.

b^{2} -4ac

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-16

Therefore, the discriminant is -16. This means that the equation has no real roots, and has 2 complex roots. Therefore, your answer is D.

Hope this helps!

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