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jenyasd209 [6]
3 years ago
8

Can anyone help me with 4 &’ 7 ?

Mathematics
1 answer:
alukav5142 [94]3 years ago
8 0
Mm i think 7 you just have to divide like the number by 2 like 40 divided by 2 is 20 then divide the 20 and you get 10 idk
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X² - 6x + 4 = 0<br><br> solve and show work. ...?
ycow [4]
The answer is 3 + √5 and 3 - √5.

This is quadratic equation: x² - 6x + 4 = 0
The general quadratic equation is ax² + bx + c = 0
Our equation can be rewritten: 1x² + (-6)x + 4 = 0
So, in our equation we have: a = 1, b = -6, c = 4

Now, x can be calculated using the formula:x_{1,2}= \frac{-b+/- \sqrt{ b^{2}-4ac } }{2a}
x_{1,2} =\frac{-(-6)+/- \sqrt{ (-6)^{2}-4*1*4 } }{2*1} = \frac{6+/- \sqrt{36-16} }{2} = \frac{6+/- \sqrt{20} }{2} =\frac{6+/- \sqrt{4*5} }{2}=  \\ &#10;=\frac{6+/- \sqrt{4}* \sqrt{5}  }{2} =\frac{2*3+/- 2\sqrt{5}  }{2}= \frac{2(3+/- \sqrt{5}) }{2} =3+/- \sqrt{5}

From here:
x_{1} =3+ \sqrt{5}  \\ &#10;x_{2} =3- \sqrt{5}

6 0
4 years ago
Find an equation of the circle that has center (6, 2) and passes through (-2,-6).
Irina18 [472]

Answer:

(x - 6)² + (y - 2)² = 128

Step-by-step explanation:

Given as the circle has center ( 6 , 2)

and it passes through points (-2 , -6)

Now , standard equation of circle is (x -a)² + (y- b)² = r²   , where (a , b) is center and r is the radius .

Again from given center the circle equation is

(x- 6)² + (y- 2)² = r²

Now this circle passes through points (-2 , -6)

so, (-2 -6)² + (-6 -2)²  = r²

so, 8²  + 8² = r²

Or, 128  = r²

i.e Radius pf this circle = 8\sqrt{2}

Hence the circle equation formed is

(x- 6)² +( y-2)² = 128   Answer

6 0
3 years ago
Is 9.36 less. than. 9.359
konstantin123 [22]

Answer:

Its more because 9.36 has a bigger beginning then 9.359.





Ur welcome plzzz mark this as brainlest and thank me


4 0
4 years ago
Read 2 more answers
Jordan and Manuel are on the track and field team at school.running around the track one day, Jordan ran 444m and Manuel ran 777
amm1812
111 is the answer of m the track is
8 0
3 years ago
Read 2 more answers
Slope=-7, through (-5,9)
Gre4nikov [31]

Answer:

y = - 7x - 26

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 7, thus

y = - 7x + c ← is the partial equation of the line

To find c substitute (- 5, 9) into the partial equation

9 = 35 + c ⇒ c = 9 - 35 = - 26

y = - 7x - 26 ← equation of line

3 0
4 years ago
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