Answer:
x = - 3 / 2 ( in decimal form = - 1.5)
Step-by-step explanation:
9(x - 1) - 8x = -3(x + 5)
left side: 9(x - 1) - 8x
Expand... 9x - 9 - 8x
= (9x - 8x) - 9
= 1x - 9 or <em>x - 9</em>
right side: -3(x + 5)
Expand... <em>-3x - 15</em>
combine :
x - 9 = -3x - 15
Add 9 to both sides to get x alone
x - 9 + 9 = -3x - 15 + 9
x = -3x - 15 + 9
x = -3x - 6
Add 3x to both sides
x + 3x = -3x - 6 + 3x
simplified, 4x = -6
Now divided 4 from both sides
4x / 4 = -6 / 4
simplify, x = -6 / 4
You can reduce the fraction by dividing it by 2
(-6 / 2) / (4 / 2) = -3 / 2
Hope this helps, Let me know if you have any questions !
Have a nice day :)
Answer:
he 8 times
Step-by-step explanation:
so he mows 5 time his sister which is 9 but it says 3 for the sister instead of 4 making it 8
Answer:
estimate: $80
exact amount paid: $82
Step-by-step explanation:
If you round $246 to 240, then divide it by 3, you should get $80. The cost per pair should be around $80 each
For the exact answer you take the amount spent (246) and divide it by the amount of jeans she bought (3).
246/3 = 82
Answer:
A - B = C
Step-by-step explanation:
you have to isolate C, so in order to do that you need to subtract the positive B from both sides. so you are left with just C on the right and A - B on the left.
The statements true about the the function f(x) = 2x2 – x – 6 are-
- The vertex of the function is (one-quarter, negative 6 and one-eighth).
- The function has two x-intercepts.
<h3>What is vertex of parabola?</h3>
The vertex of parabola is the point at the intersection of parabola and its line of symmetry.
Now the given function is,
f(x) = 2x^2 – x – 6
Also, it is given that the vertex is located at (0.25, -6) and the parabola opens up, the function has two x-intercepts.
Comparing the given function with standard form,
f(x) = a x^2 bx + c
By comprison we get,
a = 2
b = -1
c = -6
Now, x-coordinate of vertex is given as,
x = -b/2a
put the values we get,
x = -(-1)/2*2
or, x = 1/4
Put the value of x in given function, so y-coordinate of the vertex is given as,
f(1/4) = 2(1/4)² - 1/4 - 6
= -49/6
= -6 1/8
Hence, The statements true about the the function f(x) = 2x2 – x – 6 are-
- The vertex of the function is (one-quarter, negative 6 and one-eighth).
- The function has two x-intercepts.
More about vertex :
brainly.com/question/86393
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