<span>-2x^2-x+7=0
Variable with the highest degree's (exponent) constant, -2 is a, next variable's constant, -1 is b, the constant or number without a variable, 7 is c
using substitution put the numbers into the formula
</span>(-b±√(b^(2)-4ac))/(a^(2))
(-(-1)±√((-1)^(2)-4(-2)(7))/((-2)^(2)) simplify
(1±√(1+56))/4
1±√(57)/4 is your answer
Answer:
We get value of y: y = 2
Step-by-step explanation:
The points (3,5) and (2, y) are on a line with a slope of 3. Find y.
We can find y using formula of finding slope of a line.
The formula is: 
We have
and Slope = 3
Putting values and finding y

So, we get value of y: y = 2
Hello,
Step-by-step explanation:
90 = 9 x 10 = (7 + 2) x 10 = 70 + 20
70 men and 20 women

56 = 20 + X ⇔ X = 36
Answer : + 36 women
Answer:
5
Step-by-step explanation:
20 divided by 4 is 5
Answer:
Oldi is best value
Step-by-step explanation:
<u>Lidal</u>
8 rolls for £3.76
72 rolls for £3.76*9= £33.84
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72 rolls for £4.14*8= £33.12
Oldi offers better price for 72 rolls