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otez555 [7]
3 years ago
11

Solve for y , what is 9x+3y=4 ??

Mathematics
1 answer:
lora16 [44]3 years ago
4 0
To solve for y, isolate the variable to one side.
 9x+3y=4
-9x      -9x
~~~~~~~~
3y= -9x+4
~~~~~~~~
3y= -9x+4 (Divide both sides by 3)

y=-3x+4
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How do you write 7/10 as a decimal Can someone please help me!!
insens350 [35]

Answer:

0.7

Step-by-step explanation:

To get 7/10 as a decimal you simply divide 7 by 10 which gets you 0.7.

7 0
2 years ago
Find the absolute maximum and absolute minimum for f (x )equals x cubed minus 2 x squared minus 4 x plus 2 on the interval 0 les
sineoko [7]

9514 1404 393

Answer:

  • maximum: 2
  • minimum: -6

Step-by-step explanation:

The extrema will be at the ends of the interval or at a critical point within the interval.

The derivative of the function is ...

  f'(x) = 3x² -4x -4 = (x -2)(3x +2)

It is zero at x=-2/3 and at x=2. Only the latter critical point is in the interval. Since the leading coefficient of this cubic is positive, the right-most critical point is a local minimum. The coordinates of interest in this interval are ...

  f(0) = 2

  f(2) = ((2 -2)(2) -4)(2) +2 = -8 +2 = -6

  f(3) = ((3 -2)(3) -4)(3) +2 = -3 +2 = -1

The absolute maximum on the interval is f(0) = 2.

The absolute minimum on the interval is f(2) = -6.

8 0
2 years ago
Can someone help me please
Dafna1 [17]

Answer:

B) -4, - 1, 2, 5, 8

Step-by-step explanation:

Hope it helps you in your learning process

8 0
1 year ago
The long climbing rope is 100 feet long. The long climbing rope is ten times longer than the shorter safety rope. How many feet
saw5 [17]

Answer:

10 feet

Step-by-step explanation:

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8 0
2 years ago
oyce is trying to solve the equation y = x2 − 8x + 7 using the quadratic formula. She has made an error in one of the steps belo
Naddik [55]

You didn't attach anything, but this is how you should solve this equation: given an equation ax^2+bx+c=0 the solutions are

x_{1,2} = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

In your case, the values are a=1,\ b=-8,\ c=7. If you plug these values inside the solving formula, you have

x_{1,2} = \dfrac{8\pm\sqrt{64-4\cdot 1\cdot 7}}{2\cdot 1} = \dfrac{8\pm\sqrt{64-28}}{2} = \dfrac{8\pm\sqrt{36}}{2} = \dfrac{8\pm6}{2} = 4\pm3

So, the two solutions are 1 and 7

3 0
3 years ago
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