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Butoxors [25]
2 years ago
10

Determine the value of x (ill give brainliest)

Mathematics
2 answers:
r-ruslan [8.4K]2 years ago
7 0

Answer:

12

Step-by-step explanation:

9 * 12 - 2 = 61

7 * 12 + 12 = 61

Zina [86]2 years ago
4 0

Answer:

I believe the answer is 7

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I need help on this question
Kitty [74]
What is the question? i think that’s important
8 0
3 years ago
Do you agree with the statement that " cubic functions must have at least 1 x-intercept but not more than 3, whereas quadratic f
vladimir2022 [97]

Answer:

Yes, I agree

Step-by-step explanation:

For the cubic function

A cubic function is represented as:

f(x)=ax^3+bx^2+cx+d

A cubic function may have 1, 2 or 3 x intercepts. This is shown below

For 3 x intercepts

y = x^3 - x

Equate y to 0

x^3 - x = 0

Expand

x(x^2 - 1) = 0

Express x^2 - 1 as difference of two squares

x(x - 1)(x +1 ) = 0

<em>x = 0 or 1 or -1</em>

For 2 x intercepts

y = x^3 - x

y  =(x-5)^2)(x+7)

Equate y to 0

(x-5)^2(x+7) = 0

Expand

(x-5)(x-5)(x+7) = 0

<em>x= 5 or x = -7</em>

For 1 x intercept

y = x^3

Equate y to 0

x^3 = 0

Take cube roots of both sides

x = 0

It has been shown above that a cubic function may have 1, 2 or 3.

So, I agree to the statement

For the quadratic function

A quadratic function will not have any x intercept when the function can not be factorized;

E.g.

y = x^2 + x + 17

<em>The above function has no x intercept.</em>

A quadratic function will have at least 1 x intercept when the function can be factorized;

E.g.

y = x^2- 6x + 9

Equate y to 0

x^2- 6x + 9 = 0

Expand

x^2 - 3x - 3x + 9 = 0

(x - 3)(x-3) = 0

x = 3

We've shown that a quadratic may have no x intercept, and it may also have x intercept(s)

Hence, I agree to both statement

3 0
3 years ago
Pls help!!! if f(x) = 3x-2 and g(x) = 6-4x, fibd f(x) + g(x)
sp2606 [1]
So first off the equation we are solving is f(x) + g(x). So i want to plug in those equations first off. The new equation I get should be 3x-2 + 6 -4x. I then simplify this to -x+4 or 4-x.
6 0
3 years ago
Read 2 more answers
-4= 7x-(-1) / -8<br><br> Solve for x <br><br> (Solving multi step equations)
Evgen [1.6K]
Multiply both sides by -8.
Then add the one to both side to cancel it out and get 7x by itself
Then divide the whole thing by 7. So it’ll look like this: 32+1=7x and then add the one then divide by 7
4 0
3 years ago
-4x+6+30 for some value of x, what is the value of -2x+5, for the same value of x?
lana66690 [7]

Answer:

The value of X is 15.5.

7 0
3 years ago
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