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just go to symbolab.com and plug them in

the answer to a and b for one r {x=-(((sqrt(41)-11)/10)), x=((sqrt(41)+11)/10)}

The value of n is 12.

The smallest possible value is 0, when a = -1 and b = 1.

The equation of the circle is (x - 1)^2 + (y + 4)^2 = 3.

Twelve is the radius

Find all integers n such that when the clock strikes n o'clock, the acute angle between the hour and minute hands is 90 degrees.     

When a clock stricks on the hour, the minute hand has to be on the 12. 

The only two places the hour hand can be to make a 90^o angle are on the 3 or the 9. 

edited to add....  The above assumes a 12-hour clock. If it's a 24-hour clock, you can figure it out the same way.    

thank you!!

Edit: Solved it by myself, no need to help me anymore :)

.y = (x + 3)^2 - 5

y = 10(x + 3)^2 - 50

x = -3, since -3 + 3 = 0

=^._.^=

The shortest way to solve this problem:

XY = 1/2(CD - AB) 

civonamzuk 

wrongnggggggg

hey sorry thats wrong :)

np tho thanks for trying i dont get it either

 https://web2.0calc.com/questions/urgent-help-needed_6   (Solved by textot, Feb 7, 2021)

A very clever method is used to solve this problem. 

The answer is (-2,-13).

The possible values of j are -8 and 25.

Thank you!

The vertex is at (-5,7).

By Pythagoras, the area of triangle ABC is 360.

A four-dimensional cube has 24=16 corners and 2⋅4=8 three-dimensional sides and 24 two-dimensional faces and 32 on-dimensional edges.

The probability is 3/160.

The ony solution is r = 6.2.

After doing \(\frac{3}{5}\) of his homework he has \(\frac{2}{5}\) left. 

Multiplying the \(\frac{2}{5}\) or his homework must be 6 questions. This is because \(1 - \frac{1}{3} = \frac{2}{3} = 4\), as your problem states "the last 4 questions". Thus, 1/3 is equal to 2 questions, and  \(\frac{2}{5}\) or his homework must be 6 questions. Multiply \(6 \cdot \frac{5}{2} = 15\). 

Therefore, he was assigned 15 questions in total for the weekend. 

hey just saying this might be more of a ela question if u want i can give u a definition of a rational number

-- a rational number is a number such as −3/7 that can be expressed as the quotient or fraction p/q of two integers