We know that two negative makes a positive. it means every two negative makes a positive. it concludes that even no. of negative sign makes positive and odd no. of negative sign makes a negative.
in positive values there are whatever numbers, they will always be positive.
in question given that multiplication of 199 negative integers. that will give negative value because 199 is an odd number.
and then multiply by 10 positive integers which give positive value.
so overall value will be negative.
Answer:
We start with the equation:
(x^2 - 1)/(x + 1) = 2
We want to rewrite this in standard form.
We can multiply both sides by (x + 1) to get:
((x^2 - 1)/(x + 1))*(x + 1) = 2*(x + 1)
x^2 - 1 = 2*(x + 1) = 2*x + 2
Now we can move all the terms to one side to get:
x^2 - 1 - 2 - 2*x = 0
x^2 - 2*x - 3 = 0
And this is a standard quadratic equation, that we can solve by using the Bhaskara's formula, this will give us the solutions:
Then the two solutions are:
x = (2 + 4)/2 = 3
x = (2 - 4)/2 = -1
Answer:
E. Isosceles Triangle
Step-by-step explanation:
It is because it has 2 equal sides and 2 equal angles.
For number 24, x is equals to 10. It's given that the two triangles are congruent, meaning the angles are congruent too. So, angle A is equals to angle D. Angle A is equals to x+10 and angle D equals to 2x. So we make the two equations equal to each other, x+10=2x, we subtract x from both sides and we get x=10. Remember to replace x with 10 and solve it. The angle would be 20°
For number 25, it's the same thing but we are using sides this time. We make both equations equal to each other and solve for z. 3z+2=z+6, subtract z from both sides and we get 2z+2=6, now we subtract two from both sides and we are left with 2z=4, we are not done yet. We have to isolate z, so we divide both sides by 2 since z is being multiplied by 2, and we end up with z = 2
Remember to replace z with 2, the side would be 8.
I hope this helps. Sorry for the long answer and being late.
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Answer:
15/2
Step-by-step explanation:
Subtract 5x from both sides of the equation to find out.
5x +3x -5x = 5x +15/2 -5x . . . . . . subtract 5x
3x = 15/2 . . . . . . . . . . . . . . . . . . . . collect terms
The required value of 3x is 15/2.