Answer:
Step-by-step explanation:
So let's think about what values you can take square root of...
anything but negative values!
So the first one is not correct because you can also take square root of 0,
squareroot of 0 is 0.
So because of this, C and D are both correct, E is correct because root x is an increasing function. B is incorrect because (0,0) is an intercept.
Answer:
X =-3 I think
Step-by-step explanation:
Im not to sure giohg ohojhtjot
Answer:
-10x + y = 63
Step-by-step explanation:
Let's find the slope of this line. Going from (-7, -7) to (-6, 3), the "run" is +1 (this is the increase in x) and the "rise" is -10 (y increases by 10). Thus, the slope, m, is m = rise / run = 10 / 1 = 10.
Using the point-slope version of the equation of a straight line, we get
y + 7 = 10(x + 7)
Performing the multiplication results in
y + 7 = 10x + 70.
Rearranging these terms in the form Ax + By = C, we get:
-10x + y = 63
Check this by substituting -6 for x and 3 for y:
-10(-6) + 3 = 63 This is TRUE
Answer:
z = 25
Step-by-step explanation:
adjacent angles in a rhombus are supplementary
3z - 15 + 7z - 55 = 180
10z - 70 = 180
10z = 250
z = 25
Answer:
8/15
Step-by-step explanation:
The reason is because to multiply, you take the reciprocal of the fraction...
So
4/5/3/-2, right? So that's basically -4/5 ÷ 3/-2 so 4/5 * -2/3. The reciprocal of a fraction is literally just flipping it. Now, you know how to multiply, right?
-4/5 * -2/3 = (you can't simplify) 8 (negative times negative = positive) / 5*3
so 8/5*3 = 8/15. 8/15 is 0.53333, or you can just keep it as a fraction.
