Find the zeros of the function by using the Quadratic Formula:
f(x) = X^2 +7x + 9
2 months ago
2 months ago
X= x(2)+7x+9×= 2(x)+7x+9x= 9x+9x= ×=18
📚 Related Questions
In his new living room, Kirk installed carpeting on 1/2 of the floor and tile on another 1/4 of the floor. What fraction of the floor is now covered by either carpet or tile?
To find the total amount of floor covered add the amount of carpeting and tiling together. So 1/2 = 2/4, then 1/4 + 2/4 = (1 + 2) / 4 = 3/4. 3/4 of Captain Kirk's floor is covered.
A holding pen for cattle must be square and have a diagonal length of 84 84 meters. a. find the length of a side of the pen.
b. find the area of the pen.
We know that Applying the Pythagoras Theorem c²=a²+b² in a square a=b c is the diagonal-----> 84 m c²=2a²--------> a²=c²/2-----> a²=84²/2-----> a²=3528-----------> a=√3528 m
the answer part a) is √3528 m or 59.40 m
the area of the pen is a²------> 3528 m²
the answer Part b) is 3528 m²
Sara loves to go hiking. This week she hiked 3 miles on Monday, 4 miles on Tuesday, and 3 miles on Thursday. Last week Sara hiked 8 miles. How many more miles did Sara hike this week than last week?*
This week, the total = 3 + 4 + 3 = 10 miles
Last week = 8 miles.
The number more = 10 - 8 = 2 miles.
2 miles more.
Use the intercept form to find the equation of the line with the given intercepts. the intercept form of the equation of a line with intercepts (a, 0) and (0, b.is
Assuming that the "given intercepts" are (a,0) and (0,b), the equation of the line thru these 2 pts. is easily found thru use of the point-slope formula:
b-0 m = -------- = -b/a 0-a
Then y-0 = (-b/a)(x-a), or y = (-b/a)(x-a) (answer)
donovan bought 5 1/2 pounds of flour for $ 8.25. How much did the flour cost per pound? Give your answer in the correct dollar form.
Unit price per pound = $ 8.25 / 5.5 = $1.50
answer the flour cost $ 1.50 per pound
We want the unit rate: cost of flour per pound.
$8.25 --------- = $1.50/lb 5.5 lb
A price of a new car was £12500
It was reduced to £11625
Work out the percentage reduction
£12500 - £11625 = £875
£875 / £12500 = 0.07 = 7%
How many ounces of water should you drink for every 20 minutes of activity? 12?
Yes because it a fact
How to find an area of a circumbscribed hexagon using the diameter?
The formula for the area of a circumscribed hexagon = 1/2 * 6 * a * r where a = side length and r = radius of the circle ( = 1/2 the diameter) so in terms of the diameter and side length its 1/2 * 1/2 * 6 *d * a = 1.5 ad.
You can calculate the value of a by using trigonometry You consider one of the 6 isosceles triangles that make up the hexagon. The vertex angle of these triangles = 60 degrees so:-
tan 30 = 1/2 a / r = 1/2 a / 1/2 d = a/d
a = d tan 30 = sqrt3 d / 3
Substituting for a :-
So the required formula for the area of the hexagon = 1.5 ad
= 1.5 * sqrt3 d * d / 3 = 1/2 sqrt3 d^2 Answer
How much money must be deposited today to become $1300 in 20 years at 7.5% compounded continuously?
Use the formula for Amount for continuous compounding:
A = Pe^(rt)
Here A = $1300, r = 0.075 and t = 20 yrs. Thus,
1300 = P*e^(0.075*20), or 1300 = P (4.482). $1300 Solving for P: P = ----------------- = $290.07 (answer) 4.482
How to find all values of x where the tangent line is horizontal?
Your question is a rather general one. However, it can be said that differentiating the given function of x with respect to x and setting the result = to 0, then solving for x, will produce all values of x where the t. l. is horizontal.