Answer:
x=-2,-4 is your answer
x²+6x+8=0
doing middle term factorization
x²+4x+2x+8=0
x(x+4)+2(x+4)=0
(x+4)(x+2)=0
either
x=-4
or
x=-2
Answer: x=9
Explanation: All 3 angles of a triangle add up to 180, so basically the equation is (3x-5)+(7x+5)+90=180.
Then you add your like terms, so 3x+ 7x=10x and -5+5=0, which cancels out. Now we have 10x+90=180, we subtract the 90 from 180 to see what 10x is equal to and we get 90. So 10x=90. We divide 10 from 90 and we get the value of X, which is 9.
Answer:
c i think
i remember having this question
x is equal to 0 because 6 is already equal to 6
so there shouldnt be another number unless its 0
0+6=6
Answer:
8.3
Step-by-step explanation:
The tenths spot in 8.275 is where the 2 is. Since it is a 75 after that you will round it up.
. Tenths (2), Hundredths (7), Thousandths (5)