Answer:
Q(- 10) = 299
Step-by-step explanation:
Q(- 10) = 3.(- 10)² - 1
= 3 . 100 - 1
= 300 - 1
= 299
=> Q(- 10) = 299
How many different ID cards can be made if there are six digits on a card and no digit can be used more than once?
Answer:
10
Step-by-step explanation:
Determine which regions contain cube roots of −1. Check all that apply.
Answer:
its A, C, and F
Step-by-step explanation:
Answer:
A, C, F
Step-by-step explanation:
Can someone help me with this question?
a) The average rate of change of annual sales between 2017 and 2018 is 1.08%
b) The average rate of change of annual sales between 2017 and 2020 is -3.27%
Calculating average rate of changeFrom the question, we are to determine the average rate of change of annual sales
a) Between 2017 and 2018
Sale in 2017 = 367
Sale in 2018 = 371
The change in sales between the years = 371 - 367
Change in sales between the years = 4
Thus,
Average rate of change = 4/367 × 100%
Average rate of change = 1.09%
Hence, the average rate of change of annual sales between 2017 and 2018 is 1.08%
b) Between 2017 and 2020
Sale in 2017 = 367
Sale in 2020 = 355
Change in sales between the years = 355 - 367
Change in sales between the years = -12
Thus,
Average rate of change = -12/367 × 100%
Average rate of change = -3.27%
Hence, the average rate of change between 2017 and 2020 is -3.27%
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Rewrite this standard form quadratic equation into vertex form by completing the square. Upload your work here to show your thinking.
y=x2 - 6x +3
Solution :
Given the equation :
[tex]$y = x^2 - 6x+3 $[/tex]
[tex]$y=1(x^2 - 6x +n)+3$[/tex]
[tex]$n = \left(\frac{b}{2}\right)^2$[/tex]
[tex]$n = \left(\frac{6}{2}\right)^2$[/tex]
n = 9
[tex]$y=1(x^2 - 6x +9-9)+3$[/tex]
[tex]$y=1(x^2 - 6x +9)-9+3$[/tex]
[tex]$y=1(x-3)^2- 6$[/tex]
Therefore the vertex form of [tex]$y = x^2 - 6x+3 $[/tex] is [tex]$y=1(x-3)^2- 6$[/tex].
please help me :(((((((((((((((((((((((
Answer:
m∠D=64°
m∠E=90°
m∠F=26°
DE=154°
EF=116°
DF=90°
Step-by-step explanation:
Hope this helps :D
phew, this took me time, so I would appreciate brainliest, thanks have a good day :)
find the value of this expression if x=1 and y=-5
x^2y/7
Answer:
5/7
Step-by-step explanation:
I need the answer to this question anyone knows it
Answer:
x = 13
Step-by-step explanation:
Vertical angels are congruent so you set the two expressions equal to each other and solve for x.
2x - 2 = 3x -15 Subtraction 2x from both sides of the equation
-2 = x - 15 Add 15 to both sides of the equation
13 = x
Please please help me!!
solve the system of equations by the substitution method.
{ 4x - 5y = 19
{ y = x - 4
select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The solution is __ (Simplify your answer. Type an ordered pair.)
B. There are infinitely many solutions.
C. There is no solution.
Answer:
A. The solution is (1, -3)
Step-by-step explanation:
4x - 5y = 19
y = x - 4
Since the second equation already has y isolated, you can just plug that into the first equation:
4x - 5(x - 4) = 19
4x - 5x + 20 = 19
-x = -1
x = 1
Take your x value from the previous equation answer and plug that into the second equation:
y = (1) - 4
y = -3
Final solution:
(1, -3)
If you really want to know if you're correct, just do a LS/RS check for both equations:
4(1) - 5(-3) = 19
19 = 19
LS = RS
-3 = 1 - 4
-3 = -3
LS = RS
Answer:
A : 1,-3
so you substitute y= x-4 into 5y to make the equation look like 4x-5(x-4)=19 then you do -5 times (x-4) which should get you -5x and 20 so now the equation looks like this 4x-5x + 20 =19 then you combine like terms like 4x-5x which should get you -1x after you do that you subtract 20 from both sides of the equation and that should also get you -1 After you do all of that you divide by 1 on both sides and them you get your x term which is x= 1 now you can plug that into this equation y=x-4 now that equation will be y=1-4 and that is y=-3 so your answer is 1,-3
IF YOU DONT WANT TO DO ALL OF THAT BY HAND YOU CAN ALWAYS PLUG THAT EQUATION INTO DESMOS GRAPHING CALCULATOR AND YOU JUST HAVE TO FIND THE POINT WHERE THE LINE INTERSECTS
Write the equation of the circle with center of 10-2 and a radius of 7
Answer:
(x-10)^2 + (y-2)^2 = 49
Step-by-step explanation:
I'm assuming that 10-2 means (10,2)
Equation of circle:
(x-a)^2 + (y-b)^2 = r^2
Plugging in the values that we know:
(x-10)^2 + (y-2)^2 = 7^2
(x-10)^2 + (y-2)^2 = 49
Hope this helps!
Como puedo calcular tasa de crecimiento?
Answer:
Si quiere decir en un gráfico, busque cuántas unidades se eleva la coordenada y, a continuación, se ejecuta (izquierda o derecha).
Si algo no suena lo siento mi español es malo. ;--;
Enter the equation in standard form.
Miranda bought a brand-new cell phone. She noticed that the battery
consumes a rate of 5% per half an hour. Determine a function model that
represents the amount of battery left after a period of time.
The function model that represents the amount of battery left after a period of time is y = 1 ₋ 10%x
Given, Miranda bought a new cell phone which is consuming battery at a rate of 5% for every half an hour.
We are required to establish a function model that depicts how much battery is remaining after a certain amount of time.
Let y represent the amount of battery left.
and x represent the number of hours.
Then 5% per half an hour = 5% × 2 = 10%
Now frame the function model:
The amount of battery left = 1 ₋ (rate percent at which battery is being consumed)(The number of hours left)
⇒ y = 1 ₋ 10%(x)
⇒ y = 1 ₋ 10%x
As a result, we obtained the function model for the battery's remaining capacity as y = 1 ₋ 10%x
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Given right triangle ABC with altitude BD drawn to hypotenuse ACAC. If AD=4AD=4 and DC=9 ,DC=9, what is the length of BD?
(Note: the figure is not drawn to scale.) Please help ASAP will award 100 points
Answer:
6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
need help please I don't have a long time!!
Answer:
with what
Step-by-step explanation:
In the graph, the area below f(x) is shaded and labeled A, the area below g(x) is shaded and labeled B, and the area where f(x) and g(x) have shading in common is labeled AB.
Graph of two intersecting lines. The line f of x is solid and goes through the points 0, 4, and 4, 0 and is shaded below the line. The other line g of x is solid, and goes through the points 0, negative 1 and 2, 5 and is shaded below the line.
The graph represents which system of inequalities?
y ≤ −3x − 1
y ≤ −x − 4
y > −3x + 1
y ≤ −x − 4
y < 3x − 1
y ≤ −x + 4
y ≤ 3x − 1
y ≥ −x + 4
Answer:
y ≤ 3x − 1
y ≤ −x + 4
Step-by-step explanation:
Samual orders four DVDs from an online music store. Each DVDs costs $7.99. Sales tax is 6.75%
Answer:
8.529325
Step-by-step explanation:
Answer:
0.539325
Step-by-step explanation:
I used a calculator.
Wait so the sum of interior angles
====================================================
Work Shown:
n = number of sides = 9
S = sum of the interior angles of any polygon with n sides
S = 180(n-2)
S = 180(9-2)
S = 180(7)
S = 1260
Find the upper limit for the zeros of the function
P(x) = 4x 4 + 8x 3 - 7x 2 - 21x - 9
Answer:
We need to find the zeros.
4x^4 + 8x^3 - 7x^2 -21x - 9
You're supposed to use synthetic division, assuming you're in algebra 2. I removed my calculus work.
x = -1 1/2, 1+sqrt5/2 , 1-sqrt5/2
x= -1.5000000119775176
4x 4 + 8x 3 - 7x 2 - 21x - 9= 0
x= -0.618033988749895
4x 4 + 8x 3 - 7x 2 - 21x - 9= 0
x= 1.618033988749895
4x 4 + 8x 3 - 7x 2 - 21x - 9= 0
The mean June midday temperature in Desertville is 36C and the standard deviation is 3C.Assuming this data is normally distributed, how many days in June would you expect the middaytemperature to be between 39C and 42C
Answer:
4
Step-by-step explanation:
Given that:
Mean temperature (m) = 36°C
Standard deviation (s) = 3°C
Temperature between 39°C and 42°C
Temperature < 39°
Probability of temperature < 39
P(x < 39)
The standardized score (Z) :
Z = (x - m) / s
Z = (39 - 36) / 3 = 1
p(Z < 1) = 0.84134 ( Z probability calculator)
Temperature < 42°
Probability of temperature < 42°
P(x < 42)
The standardized score (Z) :
Z = (x - m) / s
Z = (42 - 36) / 3 = 2
p(Z < 2) = 0.97725 ( Z probability calculator)
p(Z < 2) - p(Z < 1) = 0.97725 - 0.84134 = 0.13591
Hence, number of days in June = 30
Expected number of days = 30 * 0.13591 = 4.0773 = 4 (nearest whole number)
what is 2 3/4 cups doubled??
Step-by-step explanation:
Need Help !!!! ASAP
Answer:
Step-by-step explanation:
que es asap
Answer:
I can give you the forumal for solving all the problems.
Step-by-step explanation:
If this is finding the circumference, then you will need to do
[tex]C = 2*\pi *r[/tex]
If you want to find the area, you need to do
[tex]A = \pi * r^{2}[/tex]
A number is 6 times another number and their sum is 28. what are the two numbers
Answer:
1st number = x
2nd number = y
x = 6y
6y = 6 x x/6
6y = x
x + x = 2x
Answer is 2x
Step-by-step explanation:
x = 6y
y = x/6
-8.3 divided by 0.25
Answer:
-33.2
Step-by-step explanation:
Answer:this is what I got
Step-by-step explanation:
-33.2 ;-;
Can someone help me with this please?
Answer:
-12
Step-by-step explanation:
subtracting a negative from a negative makes a greater negative, basically adding to the negative
Answer:
-8 is the answer correct
Step-by-step explanation:
Julia the cat wants to climb a tree that is 73 ft high. Every day she climbs 11 feet, but then during the night she comes back down 7 feet. Assuming that Julia does not fall, how long will it take her to reach the top of the tree?
Answer:
17 days======================
Progress per day and night is:
11 - 7 = 4 ftNumber of days to climb the tree less 11 ft:
(73 - 11)/4 = 62/4 = 15.5 = 16 as whole numberJulia climbed in 16 days/nights:
16 * 4 = 64 ftOne more day is required after this:
16 + 1 = 17 daysA pack of gum that comes with 35 pieces is $2.88 how much is one piece of gum? (unit price)
Answer:
0.08
Step-by-step explanation:
During a bake sale, dozen cookies were sold in hour. What is the unit rate for the dozens of cookies sold per hour?
Answer:
12:1
Step-by-step explanation:
Answer:
12:1
Step-by-step explanation:
Because 12 is the amount of cookies to the ratio of hours which is 1 therfore 12:1
Figure ABCD is a rhombus.
Rhombus A B C D is shown. Angle A is (5 x + 25) degrees and angle D is (7 x minus 1) degrees.
What is the value of x?
13
14
26
28
Answer:
Value of X is 13
The value of x is 13 in given figure, which is correct option (A).
What is the rhombus?A rhombus is defined as a special type of parallelogram that is a quadrilateral with two pairs of equal parallel sides. it fulfills the requirements of a parallelogram.
What is perimeter of rhombus?The perimeter of a rhombus is defined as the total length of its region. The four sides of a rhombus are equal, its perimeter is calculated by multiplying the length of its side by 4.
Perimeter of a rhombus = 4 × A units, where ‘A’ is the length of the side of the rhombus
In figure ABCD is a rhombus
Given as :
Angle ∠ A = (5x + 25)
Angle ∠ D = (7x - 1)
Since adjacent angles of a rhombus add up to 180°
(5x + 25) + (7x - 1) = 180 and both equal
So, 5x + 25 = 7x - 1
Rearrange the terms in the equation,
7x - 5x = 1 +25
2x = 26
x = 13
Hence, the value of x is 13 in given figure.
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The accompanying diagram shows a flagpole that stands on level ground. Two cables, r and s,
are attached to a pole at a point 20 feet above the ground. The combine length of the two cables
is 70 feet. If cable r is attached to the ground 8 feet from the base of the pole, what is the
measure of the angle, x, to the nearest degree, that cable s makes with the ground?
Answer:
x = [tex]24^{o}[/tex]
Step-by-step explanation:
r + s = 70 feet
Applying Pythagoras theorem to the triangle formed by cable r;
[tex]/hyp/^{2}[/tex] = [tex]/adj1/^{2}[/tex] + [tex]/adj2/^{2}[/tex]
[tex]/r/^{2}[/tex] = [tex]/20/^{2}[/tex] + [tex]/8/^{2}[/tex]
[tex]r^{2}[/tex] = 400 + 64
= 464
r = [tex]\sqrt{464}[/tex]
= 21.541
Length of cable r is 21.54 feet.
So that,
r + s = 70 feet
21.54 feet + s = 70 feet
s = 70 feet - 21.54 feet
= 48.46 feet
Length of cable s is 48.46 feet.
Applying trigonometric function to the triangle formed by cable s, we have;
Sin θ = [tex]\frac{opposite}{hypotenuse}[/tex]
Sin x = [tex]\frac{20}{48.46}[/tex]
= 0.4127
x = [tex]Sin^{-1}[/tex] 0.4127
= 24.3746
x = [tex]24^{o}[/tex]
The measure of angle that s makes with the ground is approximately [tex]24^{o}[/tex].
p-q= 10 q(2p-10)=1000
The first equation can be rearranged to obtain p=10+q.
Substituting this into the second equation,
[tex]q(2(10+q)-10)=1000 \\ \\ q(10+2q)=1000 \\ \\ q(5+q)=500 \\ \\ q^2 + 5q-500=0 \\ \\ (q+25)(q-20)=0 \\ \\ q=-25, 20 \\ \\ q=-25 \implies p=-15 \\ \\ q=20 \implies p=30 \\ \\ \therefore \boxed{(p,q)=\{(-15, -25), (30, 20)\}}[/tex]