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miss Akunina [59]
3 years ago
15

6x-4(3x-5)=2 solve for x.

Mathematics
1 answer:
jeka57 [31]3 years ago
5 0

Answer:

x = 3

Step-by-step explanation:

6x -4(3x-5) = 2

6x - 12x + 20 = 2

-6x = 2 - 20

-6x = -18

x = 3

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soldier1979 [14.2K]
Multiply both sides by 10.
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6 0
3 years ago
Which of the following inequalities represent the number line below?
MrRissso [65]

Answer:

greater than or equal to 250

x < or = 250

Step-by-step explanation:

hopefully this helps

6 0
3 years ago
What is the equation of the circle with center (-3,1) that passes through the point (-5, 3)?
Natali5045456 [20]

Answer:

Option B) (x + 3)^2 + (y – 1)^2 = 8 is the correct answer.

Step-by-step explanation:

The equation of a circle with center (h,k) and radius r is given by:

(x-h)^2 + (y-k)^2 = r^2

Given

Center = (h,k) = (-3,1)

=> h = -3

=> k = 1

The distance between the center of circle and the point through which the circle passes will be the radius.

The distance formula is given by:

r = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2

Given

(x_1,y_1) = (-3,1)\\(x_2,y_2) = (-5,3)

Putting the values in the formula

r = \sqrt{(-5+3)^2+(3-1)^2}\\r = \sqrt{(-2)^2+(2)^2}\\r = \sqrt{4+4}\\r = \sqrt{8}

Putting the values of h,k and r in general form of equation

\{x-(-3)}^2\} +(y-1)^2 = (\sqrt{8})^2\\(x+3)^2+(y-1)^2 = 8

Hence,

Option B) (x + 3)^2 + (y – 1)^2 = 8 is the correct answer.

4 0
3 years ago
3(2 q) 15 simplified is
Murljashka [212]
90q .................
8 0
3 years ago
By determining f prime left parenthesis x right parenthesis equals ModifyingBelow lim With h right arrow 0 StartFraction f left
aniked [119]

Answer:

70 is answer

Step-by-step explanation:

Given that a function in x is

f(x) = 5x^2

we have to find f'(7)

we know by derivative rule derivative of a function is

f'(x) = lim_({h-->0}) \frac{f(x+h)-f(x)}{h}

For finding out at 7 we replace x by 7

f'(7) = lim_({h-->0}) \frac{f(7+h)-f(7)}{h}

=lim\frac{5(7+h)^2-5*7^2}{h} \\= lim \frac{10h*7+h^2}{h} \\= 70+h = 70

So f'(7) = 70

answer is 70

3 0
3 years ago
Read 2 more answers
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