<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:
Step-by-step explanation:
Given
The attached triangle
Required
Find y
To find y, we make use of the relationship between sides lengths 44 & y and angle 39
The relationship is:
i.e.
Make y the subject
-- approximated
Answer:
h = m + 25
Step-by-step explanation:
Total number of minutes for homework. h
Math problems will take m minutes.
He needs to read for 25 minutes.
h = m + 25
YAY!!! u got it!!! =)
The probability of one head and one tail is 2/3.
<u>Step-by-step explanation</u>:
- The possibilities for flipping two fair coins are {T,T}, {H,H}, {H,T}, {T,H}
- Given the case that at least one coin lands on a head, So the total possibilities are {H,H}, {H,T}, {T,H} = 3 possibilities
- Required event is 1 head and 1 tail= {H,T}, {T,H} = 2 possibilities
To calculate the probability of one head and one tail,
Probability = required events / Total events
Probability = 2/3
Rectangle (left): A = 9 x 7 = 63
Rectangle (right): A = 2 x 10 = 20
Quarter circle: A = (1/4 x 3.14 x 3^2) = 7.065
A = 63 + 20 + 70.65
A = 90.065 square feet
Hope this helps! :)
