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Andrei [34K]
3 years ago
15

Please help!!!!!!!!! (Solve The quadratic equation by completing the square) 2x^2+12x=66 fill in the value of a and b to complet

e the solution

Mathematics
2 answers:
nydimaria [60]3 years ago
6 0

Answer: in order

x=-3-\sqrt{42}

x=-3+\sqrt{42}

Step-by-step explanation:

100 % edmentum  

yKpoI14uk [10]3 years ago
5 0

I hope this it

Explanation:

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Identify the equation in slope-intercept form for the line containing the point (2,4) and perpendicular to y=1/2x+1/2.
qaws [65]

<u>Answer:</u>

 y = − 2 x

<u>Step-by-step Explanation:</u>

Y + 2 = − 2 ⋅ ( − 1 )  Write in   y = m x + b  form.

The equation of a perpendicular line must have a slope that is the negative reciprocal of the original slope.

m  in perpendicular  = − 1 2

(1,-2),y=(1)/(2)x+4

I hope I helped!

6 0
3 years ago
Read 2 more answers
A spin balancer rotates the wheel of a car at 500 revolutions per minute. If the diameter of the wheel is 26 inches, what road s
natta225 [31]

Answer:

c. 52 rad/s

Step-by-step explanation:

Final question does not correspond with available option. The real question is: <em>What is the angular speed in radians per second?</em>

At first we assume that spin balance rotates at constant rate and convert given angular speed, measured in revolutions per minute, into radians per second:

\omega = \left(500\,\frac{rev}{min} \right)\cdot \left(2\pi\,\frac{rad}{rev} \right)\cdot \left(\frac{1}{60}\,\frac{min}{sec}  \right)

\omega \approx 52.360\,\frac{rad}{s}

Which corresponds to option C.

3 0
3 years ago
Fiona starts at the begining of a hiking trail and walks 4/5 mile. She counts the mileage markers and that placed every 1/10 mil
myrzilka [38]
4/5 mile is 8/10 of a mile. 8/10 divided by 1/10 is 8. she saw eight markers
8 0
4 years ago
Graph the following equation using X- and y-intercepts.<br> x + y = -3
Kitty [74]

Answer:

x-intercept: (-3,0)

y-intercept: (0,-3)

Step-by-step explanation:

Looking at the equation, we can see that it is already in standard form, or in a Ax+By=C format. Whenever a line is put into standard form, the x-intercepts are represented by (\frac{C}{A},0) and the y-intercepts are represented by (0, \frac{C}{B} ). So, let's calculate them by doing the following:

1) Find the x-intercept by using the (\frac{C}{A},0) formula. Substitute the number on the right side of the equation for C and the coefficient for the x term for A. So, in this case, C = -3 and A = 1:

(\frac{C}{A},0)\\\\(\frac{-3}{1},0)  \\(-3,0)

Therefore, the x-intercept is (-3,0).

2) Next, find the y-intercept by using the (0,\frac{C}{B} ) formula and substituting the right values. C is still the number on the right side of the equation and B is the coefficient of the y term. So, C = -3 and B = 1.

(0,\frac{C}{B})\\ (0, \frac{-3}{1})\\(0, -3)

Therefore, (0, -3) is the y-intercept.

7 0
3 years ago
Jenna’s backpack weight 12.09 pounds. Kara’s backpack weighted 15.3 pounds. How much heavier was Kara’s backpack?
PIT_PIT [208]

Answer:

3.21 pounds

Step-by-step explanation:

15.3 - 12.09 = 3.21

6 0
3 years ago
Read 2 more answers
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