Answer:
Step-by-step explanation:
y=ax^2+bx+c we are given point (0,5) so if x=0, y=c, so c=5. We have two other points
(2,3)(4,9) which gives us
4a+2b+5=3 and 16a+4b+5=9
Subtracting twice the first from the second
16a+4b+5-8a-4b-10=9-6
8a-5=3
8a=8, so a=1, so using 4a+2b+5=3 we get
4(1)+2b+5=3
2b+9=3
2b=-6
b=-3 so our quadratic is
y=x^2-3x+5
Answer:
Step-by-step explanation:
Area of shaded region = Area of quadrant - area of triangle
= (1/4)πr² - (1/2)bh
= 7 cm²
So when ur trying to divide fractions that can't really "happen" for one u may not get the correct answer so u (KCF) which would mean "keep change flip" so this is what u should get
See what we did there? We switch the second fraction and instead of division we did multiplication so then if u multiply across you should get
Then find the greatest common factor which is 2 then divide both of them by two straight across then u would get
Cause 6 divided by 2 =3
And 10 ÷2 =5
Answer:
B
Step-by-step explanation:
First we find out over how many years the growth happened, from 1985 to 2020, that's 35 years.
In 1985 the club had 23,000 members, and it grew at an ave. rate of 5% each year. So, to find out 5% of 23,000 we can divide it by 100 to find 1% and then multiply by 5.
23,000 / 100 = 230 now 230 times 5 is 1150, to check our work we can multiply 1150 by 20 because it is 5% to get 100% and it is 23000 so we are on track so far. Now over the span of 35 the club grew by 1,150 each year, so, 1150 times 35 is 40,250 and if we add that to 23,000 we get 63,250. Round to the nearest thousand which would be
B. 78,000 but I may have went about solving exponential growth wrong but if this is the answer you have been getting there you go.
Answer:
x<-2
Step-by-step explanation:
x<-2. The line is going to the left of two so it is less then two and the open circle means its only less then not less then or equal to.