Answer:
plots: -12,0
Step-by-step explanation:
The original number is 7 i think.
10(x^2) = 70x
10x^2 - 70x = 0
x^2 -7x =0
Δ= b^2 -4ac
where c doesnt exist=0
Δ= 49
-b ± √Δ /2a
7 ± √49 /2
7±7/2
x is either 14/2= 7
or 1/2, which doesnt work.
Lets see:
10(7^2) = 70•7
10•49 = 490
and that is right.
i hope my logic is correct.
Answer:
1. B = 42° C = 138°
2. ∠S = 28°
Step-by-step explanation:
1. Since b and 42° are across from each other, they are congruent angles. So, b would equal 42°. We still don't know the value of c, we can do 42 + 42 + 2c = 360, because again, the two angles are across from each other. The whole equation equals to 360 because the intersecting lines kind of forms a circle and a circle is 360°.
2. All the angles of a triangle add up to 180°. Since the triangle is a right triangle, we know 2 out of the 3 angles. The equation would then be, 62 + 90 + s = 180.
Answer:You have 4 quarters and 45 pennines
Step-by-step explanation: