First put it in standard form:
<span>x^2 −14x -15 =0
a =1 b =-14 c=-15
Then use the quadratic formula:
x = [-b +-sq root (b^2 - 4ac)] / 2a
x = [--14 +- sq root (14^2 -4*1*-15] / 2*1
x = [14 +-sq root (196 +60)] / 2
</span><span>x = [14 +- 16] / 2
x1 = 15
x2 = -1
</span>
Answer:
0.36
Step-by-step explanation:
Convert the fraction to a decimal by dividing the numerator by the denominator.
<h3>Hope it is helpful...</h3>
Answer: about 16 people would get to 100 and 30,000 would make it to 99
Step-by-step explanation:
the avarage life span is up to 70 years. About 1 in 6,000 reach 100.
Answer:
ah theres no picture m8 put a picture of the shapes your talking about and I could help ya out
Answer:
x=7.5
Step-by-step explanation:
To solve this, cross multiply
3/4=x/10
4*x=3*10
4x=30
Divide by 4 on both sides
x=7.5
Hope this helps! :)
