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valentinak56 [21]
2 years ago
12

Please help me with this

Mathematics
1 answer:
rjkz [21]2 years ago
7 0
The answer to your question is 17

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(-7) + b = (-11) PLEASE HELP
Alex
B=-4 because the7 turns positive then you add -11+7 which is -4
6 0
3 years ago
There are 1096 marbles in a bag. One of the marbles is to be randomly chosen from the bag. If the probability that a red marble
erica [24]

Answer: 685 red marbles

Step-by-step explanation:

Lets set up a proportion:

x/1096 = 5/8

(For every 8 marbles, 5 of them are red)

Then we cross multiply

5480 = 8x

and divide!

so 685 marbles

6 0
3 years ago
Graph the function y = x3 + 3x2 – x – 3. Which lists all of the turning points of the graph? (–3, 0) and (1, 0) (–2, 3) and (0,
Vlada [557]

Answer with explanation:

The given function is:

  y=x³+3 x²-x-3

    =x²(x+3) -1(x+3)

    = (x²-1)(x+3)

   = (x-1)(x+1)(x+3)

Put, y=0 , gives

⇒ (x-1)(x+1)(x+3)=0

≡→x-1=0 ∧ → x+1=0 ∧→x+3=0

≡x=1, -1, -3

So, there are three breaking points in the curve.

1.⇒Putting, x=1 , in the function

y(1)=1³+3×1²-1 -3

  =1 +3-4

  =0

2. ⇒Putting, x=-1 , in the function

y(-1)=(-1)³+3×(-1)²-(-1) -3

  = -1 +3+1-3

  =0

3.⇒Putting, x=-3 , in the function

y(-3)=(-3)³+3×(-3)²-(-3) -3

  =-27+27+3-3

  =0

So, These are points where curve crosses the X axis, which are , (1,0),(-1,0) and (-3,0).

But turning points are those points where curve takes the turn , that is, if it is increasing function then it starts decreasing or becomes constant function after that point, and if it is a decreasing function then it becomes increasing or constant function.

So,turning points of the given function by looking at the graph of the function  by approximation

Option B:→(-2,3) and (0, -3)

8 0
3 years ago
Someone please help!!!!<br> 6+2/3x&gt;12-1/3x
attashe74 [19]

Answer:

the answer is x>6

Step-by-step explanation:

hope dis right

5 0
2 years ago
Read 2 more answers
Circumfrance of a circle, (Show working)
Ronch [10]

Answer:

25.1cm

Step-by-step explanation:

C=2πr

here radius, r=4 cm and π=3.142

Put values in formula.

C=2(3.142)(4)

C=25.1 cm (Rounded to 1 decimal place)

3 0
2 years ago
Read 2 more answers
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