Answer:
The function in the vertex form is y = (x + 2.5)² - 15.25
Step-by-step explanation:
The vertex form of the quadratic function y = ax² + bx + c is:
y = a(x - h)² + k, where
a is the coefficient of x²h, k are the coordinates of its vertex pointh = [tex]\frac{-b}{2a}[/tex]k equals y at x = h∵ The given function is y = x² + 5x - 9
∴ a = 1, b = 5, c = -9
→ Use a and b to find h
∵ h = [tex]\frac{-b}{2a}[/tex]
∴ h = [tex]\frac{-5}{2(1)}=-2.5[/tex]
∴ h = -2.5
→ Find y at x = -2.5
∵ y = (-2.5)² + 5(-2.5) - 9 = 6.25 - 12.5 - 9
∴ y = -15.25
∴ k = -15.25
→ Substitute a, h, k in the vertex form above
∴ y = 1(x - -2.5)² + -15.25
∴ y = (x + 2.5)² - 15.25
The function in the vertex form is y = (x + 2.5)² - 15.25
Find f(-5) × f(-3) f(x) = - x - 12
Answer:
63
Step-by-step explanation:
Step 1: Define
f(x) = -x - 12
f(-5) is x = -5
f(-3) is x = -3
Step 2: Find f(-5)
f(-5) = -(-5) - 12
f(-5) = 5 - 12
f(-5) = -7
Step 3: Find f(-3)
f(-3) = -(-3) - 12
f(-3) = 3 - 12
f(-3) = -9
Step 4: Find f(-5) × f(-3)
-7 × -9
63
The ticket booth on the Tech campus is operated by one person, who is selling tickets for the annual Tech versus State football game on Saturday. The ticket seller can serve an average of 12 customers per hour (Poisson distributed); on average, 8 customers arrive to purchase tickets each hour (Poisson distributed). 1. Determine the average time a ticket buyer must wait (in minutes). , Round your answer to integer, the tolerance is +/- 1. 2. What portion of time is the ticket seller busy? %, Round your answer to integer, the tolerance is +/- 1.
Answer:
a
[tex]A_w = 1.667 \ hour [/tex]
b
[tex]b = 0.667 \ hour [/tex]
Step-by-step explanation:
From the question we are told that
The mean number of ticket per hour is [tex]\mu = 12 \ tickets[/tex]
The mean number of customers arrive to purchase tickets each hour is [tex]\lambda = 8 \ customers[/tex]
Generally the average time the ticket buyer must wait is mathematically represented as
[tex]A_w = \frac{\lambda }{ \mu [\mu -\lambda]}[/tex]
=> [tex]A_w = \frac{8 }{ 12 [12-8]}[/tex]
=> [tex]A_w = 1.667 \ hour [/tex]
Generally the portion of time is the ticket seller busy is mathematically represented as
[tex]b = \frac{\lambda}{ \mu}[/tex]
=> [tex]b = \frac{8}{ 12} [/tex]
=> [tex]b = 0.667 \ hour [/tex]
Find the derivative of log e^((1+tan x)) w.r.t x
3/5 + -7/5
Answer fast please
Answer:
-0.8
Step-by-step explanation:
hope this helps :3
Answer:
-4/5 for fraction or -0.8 for decimal
Step-by-step explanation:
A ball is thrown into the air with an initial velocity of 22 meters per second.
The quadratic function ℎ() = −4.9
2 + 22 + 5.5 represents the height of
the ball above the ground, in meters, with respect to time , in seconds.
Part A: Determine ℎ(3) and explain what it represents.
Answer:
27.4 metres
Step-by-step explanation:
Um, your question is missing the x's. I'm going to assume, -4.9x^2+22x+5.5
= -4.9(3)^2+22(3)+5.5
= 27.4
At 3 seconds the ball is 27.4 metres above the ground.
х
3
3
Right triangle similarity
What is the value of x
Answer:
21
Step-by-step explanation:
The length of the other leg (x) is 12 cm.
We have,
To find the length of the other leg, we can use the Pythagorean theorem.
Using this theorem, we can set up the following equation:
x² + 5² = 13²
Simplifying the equation:
x² + 25 = 169
Subtracting 25 from both sides:
x² = 144
Taking the square root of both sides:
x = ±12
Since length cannot be negative in this context, the length of the other leg (x) is 12 cm.
Thus,
The length of the other leg (x) is 12 cm.
Learn more about triangles here:
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The complete question:
In a right triangle, the length of one of the legs is 5 cm, and the length of the hypotenuse is 13 cm.
What is the length of the other leg, represented as x?
Find the distance FG between the points F(0,-7) and G(-6,-3) . Round your answer to the nearest tenth, if necessary
Answer:
7.2
Step-by-step explanation:
how do i find the square root of pi
Answer:
3.141592654...
Step-by-step explanation:
it just keeps going and going and never stops.
please give me brainliest
Since the time series has trend and seasonal pattern, to forecast the quarterly sales of the textbook, the following regression equation was found: stack y t with overparenthesis on top equals 2120 space minus 620 space Q t r 1 space minus space 1320 space Q t r 2 space plus space 290 space Q t r 3 space plus space 24 space t , where Q t r 1 , Q t r 2and Q t r 3 are dummy variables corresponding to Quarters 1, 2 and 3, and t = time period. The sales in Quarter 4 of the next year are predicted to be
Answer:
Y(2)= 2120+ 48= 2168
Step-by-step explanation:
The given equation is
Yt= 2120 - 620 Qtr 1 t -1320 Qtr 2 t + 290 Q tr3 t + 24 t
Taking the quarter 1 , 2 and 3 to be dummy variable the predicted sales for the 4th qtr are
Yt= 2120 - 620 Qtr 1(0) -1320 Qtr 2(0) + 290 Q tr3 (0) + 24 (1)
Y(1)= 2120 + 24 = 2144 ( for year =1)
Y(2)= 2120+ 48= 2168 ( for year =2)
Y(3)= 2120 + 72= 2192 ( for year =3)
where t is the number of years.
So for the next year the fourth quarter sales are predicted to be 2168.
The interquartile is the range of the middle of what percentage data?
A right rectangular prism is shown.
To the nearest thousandth of an inch, what is the length of the diagonal, dd?
Answer:
15.56 in.
Step-by-step explanation:
i'm pretty sure i did it right, but im not sure. i haven't done geometry in like over 2 years.
find the hypotenuse of the triangle with 7 in. and 12 in. as your legs with the Pythgorean theorem (a^2 + b^2 = c^2, c equals the hypotenuse)
use that number you just got (I got [tex]\sqrt{193}[/tex]) and use it as one leg, and 7 in. as the other leg, with d as your hypotenuse
use the Phythagorean theorem again to find d, andddd... you've got your answer!
Length of diagonal 'd' of the right rectangular prism given in the picture will be 14.765 inches.
Pythagoras theorem: Pythagoras theorem is applicable in a right triangle. Pythagoras theorem is given by the expression,(Hypotenuse)² = (Leg 1)² + (Leg 2)²
By applying Pythagoras theorem in right tringle ΔCBE,
(CE)² = (BC)² + (BE)²
(CE)² = 5² + 12²
CE = √169 = 13 inches
Similarly, apply Pythagoras theorem in right triangle ΔDCE,
(DE)² = (CD)² + (CE)²
d² = 7² + (13)²
d² = 49 + 169
d = √218
d = 14.7648
d ≈ 14.765 inches
Hence, measure of diagonal 'd' will be 14.765 inches.
Learn more about the Pythagoras theorem here,
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SHOW WORK ILL MARK BRAINLIST !!!!
Answer:
Let's see what to do buddy....
Step-by-step explanation:
_________________________________
Step (1)
[tex]f(x) = 3x - 2[/tex]
[tex]g(x) = {x}^{2} - 5 [/tex]
_________________________________
Step (2)
We need to find f(2) first ;
To do this we must put 2 instead of the x in f(x) function.
Let's do it :
[tex]f(2) = 3(2) - 2[/tex]
[tex]f(2) = 6 - 2[/tex]
[tex]f(2) = 4[/tex]
_________________________________
Step (3)
Now we are going to find g( f (2) ) ;
Look :
[tex]g( \: f(2) \: ) = g(4)[/tex]
So we want to find g(4) ;
which means we must put 4 instead of the x in g(x) function.
Let's do it :
[tex]g(4) = ({4})^{2} - 5 [/tex]
[tex]g(4) = 16 - 5[/tex]
[tex]g(4) = 11[/tex]
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
I will give you branilest!
What equation could you use to find the total entrance cost for a vehicle with any number of people?
Answer:
You are correct, and you could also write an expression where m = money, p = people, and v = vehicle
m · p · v = ___
I hope this helps you ^‿^
Latoya bought 16 pounds of flour for $9.
How many pounds of flour did she get per dollar?
pounds per dollar
Answer:
I think she gets 1 pound per 1.70$
Step-by-step explanation:
16/9 is 1.7
2 points
2) At the sixth-grade school dance, there are 132 boys, 89 girls, and 14
adults. Write the ratio of the number of girls to the TOTAL number of
I really need help please
The table below shows the illuminated percentage of the moon on a lunar cycle of 28 days. The relationship can be described using a cosine function.
A 2-column table with 5 rows. Column 1 is labeled d with entries 0, 7, 14, 21, 28. Column 2 is labeled percent with entries 0, 48, 96, 48, 0.
Use the drop-down menus to complete each statement.
The amplitude of the function is
.
The period of the function is
.
The graph has a vertical shift of
units.
Answer:
The amplitude of the function is 48
The period of the function is 28
The graph has a vertical shift of 48 units.
Step-by-step explanation:
just took the quiz
The sum of three consecutive rven integers is 72. Let x represent the first integer, x+2 represent the srcond integer, and x+ 4 represent the third which equation can be used to find the first integer
Given parameters:
First term of the sequence = x
Second term = x + 2
Third term = x + 4
Sum of the first three terms = 72
Unknown:
First term of the sequence = ?
Solution:
The sum of the first three terms is unknown;
(x) + (x + 2) + (x + 4) = 72
Solve for x;
x + x + 2 + x + 4 = 72
3x + 6 = 72
3x = 72 - 6
3x = 66
x = [tex]\frac{66}{3}[/tex] = 22
The first term of the sequence is 22
-4x + 3 - 7x -8
Does anyone know the answer?
Answer:
-11x -5
Step-by-step explanation:
MARK BRANIEST
Answer: -11x-5
Step-by-step explanation: First, combine like terms which means -4x and -7x which gives you -11x, and then you combine 3 and -8 which gives you -5. Then it gives you to -11x-5
URRRRRGGGGEEENNNNTTTTT!!!!!!
Step-by-step explanation:
Well you have to find two points on the line like points (0,2) and (2,-2)
Then you do y2-y1/x2-x1
You should be able to know what answer it is now!
Hope this helps <3
Please help and give answers correctly for brainliest please i really need help
Answer:
a: copper wire is the largest
b: he will have both 32 if he cuts the copper shorter
Step-by-step explanation:
Jaun has $10 to spend. He needs $13 to purchase the supplies.explain how to find the amount of money juan is short
Answer:
$10 - $13 is -3, which menas he is $3 short.
Step-by-step explanation:
Answer:
take the amount Jaun has ($10) and subtract it from the amount he needs ($13). you will get 3$ which is the amount of money he is short.
Step-by-step explanation:
Hope this helps you
A principal of $1700 is invested at 6% interest, compounded annually. How much will the investment be worth after 13 years?
Answer:
$3626
Step-by-step explanation:
1700*(1+0.06)^13=3625.978
choose the correct decimal for the expression. seven and ten-thousandths.......7.10, 0.710, 7.0010, 7.010......we chose 7.0010 and it was wrong. help
Answer:
7.010 if it's wrong im sorry
An electrician needs 6 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 3/4 of a roll of wire?
Answer:
1/8 room
Step-by-step explanation:
(3/4 roll)/(6 rolls/room) = (3/4)(1/6) rooms = 1/8 rooms
With 3/4 roll of wire, the electrician can wire 1/8 of a room.
The midpoint of AB is M(-1,-5). If the coordinates of A are (4, -3), what are
the coordinates of B?
The coordinates of B is (-6, -7)
How to determine the coordinates of B?The given parameters are
A = (4, -3)
M = (-1, -5)
The midpoint of a line is calculated as
M = 1/2(x1 + x2, y1 + y2)
So, we have
(-1, -5) = 1/2 * (4 + x, -3 + y)
This gives
(-2, -10) = (4 + x, -3 + y)
Solve for x and y
4 + x = -2
-3 + y =-10
Evaluate
x = -6 and y = -7
Hence, the coordinates of B is (-6, -7)
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explain the polar form in mathematical terms ....... right answer will be mark as brainliest
...................................
2. If there are 95 pencils and 45 erasers in the box, what is the simplified ratio of erasers to pencils? LED
Answer:
The simplified ratio is 19:9.
Step-by-step explanation:
Answer:
19:9
Step-by-step explanation:
First, make it a fraction. 95/45. Then simplify by 5.
Red = R, Orange = O, Yellow = Y, etc; ALL CAPS
Answer:
I don't know what your asking, but if your asking about colors here you go.
Step-by-step explanation:
Green = G
Blue = B
Black = BL
Yellow = Y
Orange = O
Grey = GR
Purple = P
Red = R
Pink = PI
Thats all that I can think of right now
3) For the ordered pairs given in the table, is the relation a function?
X
0,1,2,1 Y4,2,6,5
Answer:
Relation
Step-by-step explanation:
The domains, 0,1,2,1 repeat! (the 1's repeat twice:)
No it is not a function.
In the x-values there are two ones. Therefore it cannot be a function.