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Aleks [24]
3 years ago
11

What value of x makes the question true? 2x + 9 = 4x - 1

Mathematics
1 answer:
leonid [27]3 years ago
8 0

Answer:

5

Step-by-step explanation:

2x +9 =4x - 1

2x - 4x =-1 - 9

-2x=-10 /(-1)

2x=10

x=10 :2

x=5

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Which points are exactly 10 units from the point (–8, –2)? Check ALL that apply.
Archy [21]

Answer:

The points that are exactly 10 units from the point (–8, –2) are (2, –2)  and (–8, 8).

Step-by-step explanation:

The distance formula is;

                               d= \sqrt{( x_{2}-x_{1} )^{2}-(y_{2} -y_{1} )^{2}   }

So for distance between: (–8, –2)  and (2, –2) is:

                             d=  \sqrt{( 2-(-8))^{2}-(-2 -(-2) )^{2}   }

                             d= \sqrt{100}

                            d= 10 unit

Similarly for distance between: (–8, –2) and (–8, 8) is,

                                d=  \sqrt{( -8-(-8))^{2}-(8 -(-2) )^{2}   }

                               d= \sqrt{100}

                               d= 10 unit

6 0
4 years ago
Which function has two x intercepts one at (0,0) and one at (4,0)
marta [7]

Answer:

f(y) = y(y - 4).

Step-by-step explanation:

The function has two x-intercepts of the function are (0,0) and (4,0).

X-intercept means that the y-value will be zero.

Therefore, the function f(y) has two roots, one at y = 0 and another at y = 4.

Hence, the function x = f(y) has two factors (y - 0) and (y - 4)

So, the function is f(y) = (y - 0)(y - 4) = y(y - 4). (Answer)

8 0
3 years ago
Which of the following is equivalent to this expression?
Aliun [14]

Answer:

121

Step-by-step explanation:

6 0
3 years ago
Help! Algebra!!!
balandron [24]
Thet contradict each other, that's why both of them are incorrect.
<span>Suppose that a polynomial has four roots: s, t, u, and v. If the polynomial were evaluated at any of these values, it would have to be zero. Therefore, the polynomial can be written in this form. 

p(x)(x - s)(x - t)(x - u)(x - v), where p(x) is some non-zero polynomial 

This polynomial has a degree of at least 4. It therefore cannot be cubic. 

Now prove Kelsey correct. We have already proved that there can be no more than three roots. To prove that a cubic polynomial with three roots is possible, all we have to do is offer a single example of that. This one will do. 

(x - 1)(x - 2)(x - 3) 

This is a cubic polynomial with three roots, and four or more roots are not possible for a cubic polynomial. Kelsey is correct. 

Incidentally, if this is a roller coaster we are discussing, then a cubic polynomial is not such a good idea, either for a vertical curve or a horizontal curve. I hope this helps</span><span>
</span>
4 0
3 years ago
How do you calculate 15-(37+8)÷3
Lorico [155]
PEMDAS

15-(37+8)/3
15-45/3
15-15
0
5 0
3 years ago
Read 2 more answers
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