Answer:
2x² - 2x - 12
(x-3)(2x + 4)
expand brackets:
2x² + 4x - 6x - 12
then simplify:
2x² - 2x - 12
hope this helps
brainliest please?
x
Answer:
2x² - 2x - 12 Step-by-step explanation:
Anyone willing to answer this question
Answer:
C.
Step-by-step explanation:
To get a perpendicular line, the slope will be the opposite of what you currently have. You have a slope of 2, so the opposite reciprocal slope will be -1/2. Then, you use the equation y = mx+b and substitute (2,5) for the y and the x (2 for the x and 5 for the y). This is to solve for b. Then, you have your equation! Hope this helped.
find the domain of the function f/g(x) given f(x)=x^2+2x-8 and g(x)=x^2-16
Answer:
C) \(\{x|x\neq-4 \:or \:4\}\)
Step-by-step explanation:
\(\frac{x^2+2x-8}{x^2-16}\\ \\\frac{(x+4)(x-2)}{(x+4)(x-4)}\\ \\x\neq-4 \:or \:4\)
Here, \(x\neq-4\) is a hole on the graph since \(x+4\) exists in both the numerator and denominator.
write 52 As a product of prime factors
9.5 divided by 14.25
Answer:
\(\frac{19}{29}\)
Step-by-step explanation:
9.5 divided by 14.35 can also be writen as.....
\(\frac{9.5}{14.5} = \frac{19}{29}\)
The length of a rectangular backyard is represented by 4x + 10, and the width is represented by 2x + 5.
An inground swimming pool with an area of 2x² will be installed tomorrow. Write an expression to
represent the remaining area of the backyard.
(1) 8x² + 40x + 50
(3) 2x² + 6x + 15
(2) 6x² + 40x + 50
(4) 6x² + 50
Answer:
(2) 6x^2+40x +50
Step-by-step explanation:
(4x+10)*(2x+5) = 8x^2 +40+50
minus 2x^2
=6x^2 +40 +50
Move each inequality to the table to match the appropriate situation describing x. HELPP FAST
Answer:
1. x < 10
2. x ≥ 10
3. x ≤ 10
4. x > 10
Step-by-step explanation:
1. Tiana read a book in less than 10 days.
Let
x = number of days Tiana read her book
x < 10
2. Charlie plans to run at least 10 miles this week
Let
x = number of miles Charlie plans to run
x ≥ 10
Jessica can spend at most 10 dollars on lunch
Let
x = amount of money Jessica can spend on lunch
x ≤ 10
Andre needs to buy more than 10 balloons for the party
Let
x = number of balloons Andre needs to buy
x > 10
angle x is coterminal with gale y. if the measure of angle x is greater than the measure of angle y which statement is true regarding the values of x and y
Answer:
The answer is C
Step-by-step explanation:
did the quiz
Answer:
He is right it C just did the quiz let him have the brainly ;)
Step-by-step explanation:
will give brainliest to correct answer
The sequence that represents the arithmetic sequence will be {-6, 1, 8, 15, 22,...}. Then the correct option is A.
What is an arithmetic sequence?Arithmetic succession or arithmetic sequential is a numerical series in which the difference between subsequent terms is uniform.
Let's check all the options, then we have
A. {-6, 1, 8, 15, 22,...}, then the common difference is given as,
d = 1 - (-6) = 8 - 1 =
d = 7 = 7
B. {64, 32, 16, 8, 4,...}, then the common difference is given as,
d = 32 - 64 = 16 - 32
d = -32 ≠ - 16
C. {1, 2, 4, 8, 16,...}, then the common difference is given as,
d = 1 - 2 = 2 - 4
d = - 1 ≠ - 2
D. {1, 3, 6, 10, 15,...}, then the common difference is given as,
d = 1 - 3 = 3 - 6
d = - 2 ≠ - 3
The sequence that represents the arithmetic sequence will be {-6, 1, 8, 15, 22,...}. Then the correct option is A.
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What would be 57.99461679 rounded to the nearest whole number ?
Answer:
58
Step-by-step explanation:
58
boom. done.
more than .5 is round up
Use the power-reducing formulas to rewrite the expression in terms of first powers of the cosines of multiple angles.
5 cos4(x)
Using the power reducing formulas the expression \(5cos^4(x) = 5(1 + cos(2x))^{2/4}\).
What are power-reducing formula?We can define higher powers of a trigonometric function in terms of lower powers of the same function using the power-reducing formulas, which are trigonometric identities. Higher powers of cosine can be expressed using this formula in terms of sine and cosine's initial powers. For the other trigonometric functions, such as sine and tangent, there are equivalent formulas. These formulas can be used to solve trigonometric equations and to simplify trigonometric expressions.
The given function is 5cos^4(x).
Now, the power reducing formulas are given by:
\(cos(2x) = cos^2(x) - sin^2(x) = 2cos^2(x) - 1\\cos^2(x) = (1 + cos(2x))/2\)
Substituting the value of second equation in 1 we have:
cos(2x) = 2(1 + cos(2x))/4 - 1
\(cos(2x) = (2cos^2(x) - 1) = cos^2(x) - sin^2(x)\)
Now we have:
\(cos^2(x) = (1 + cos(2x))/2\)
Thus,
\(cos^4(x) = (1 + cos(2x))/2)^2\)
Now multiplying by 5:
\(5cos^4(x) = 5(1 + cos(2x))^{2/4}\)
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The circle below is centered at the point (4, 1) and has a radius of length 2.
What is its equation?
10
A. (x-4)² + (v-1)2 = 4
B. (x-1)2 + (v-4)2 = 4
C. (x + 1)2 + (v-4)² =
22
D. (x+4)2 + (y- 1)²2 = 4
Answer:
A
Step-by-step explanation:
the equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k ) are the coordinates of the centre and r is the radius
here (h, k ) = (4, 1 ) and r = 2 , then
(x - 4)² + (y - 1)² = 2² , that is
(x - 4)² + (y - 1)² = 4 ← equation of circle
What is the probability of getting number greater than 7 when 2 cards are drawn?
a) with replacement
b) without replacement
Please see the attached photos. Hope this helps :). A simpler approach is to think of the probability of the opposing happening, or not getting a number greater than 7 from either draw. I personally like this style of visualization though :)
Define the following terms:
those questions and the functions are: f(x) = 3x- 4 g(x)=2x²+5 h(x)= 8- 3x p(x) = x²- 2x
Answer:
that is way to experienced for your level but if you come to me i will answer for you
Step-by-step explanation:
4. Which of the following is an example of an identity? (1) x* +2x+8= (x +2) (x + 4) (2) 2x (x-3) +5x-15 = (2x +5) (x-3) (3) + +9= (x+3) (4) £+8=(x+2)(x+4)
Answer: option 3
Step-by-step explanation:
An identity is an equation that is true for all values of the variables. In other words, if an equation is an identity, then it holds true regardless of what values are plugged in for the variables.
Out of the given options, the only equation that is an identity is:
(3) +9= (x+3)
This equation simplifies to:
x + 9 = x + 9
Which is true for all values of x.
Option (1) and (4) are examples of factorization of a quadratic expression and option (2) is an example of a distribution of terms over parentheses, but they are not identities.
A store opens at 8am. From 8 until 10am customers arrive at a Poisson rate of four an hour. Between 10am and 12pm they arrive at a Poisson rate of eight an hour. From 12pm and 2pm the arrival rate increases steadily from eight per hour at 12pm to ten per hour at 2pm; and from 2 to 5pm the arrival rate drops steadily from ten per hour at 2pm to four per hour at 5pm. Determine the probability distribution of the number of customers that enter the store on a given day.
The probability distribution of the number of customers that enter the store on a given day is described as follows:
Poisson with a mean of 70 customers.
What is the Poisson distribution?In a Poisson distribution, the mass function probability that X represents the number of successes of a random variable is given by the equation presented as follows:
\(P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}\)
The parameters are:
x is the number of successes that we want to find the probability of.e = 2.71828 is the Euler number.\(\mu\) is the mean in the given interval or range of values of the input parameter.A combination of Poisson variables is a Poisson variable, hence the daily distribution is a Poisson variable with mean given by the sum of these following observations:
8 customers from 8 am to 10 am.16 customers from 10 am to 12 pm.18 customers from 12 pm to 2 pm. (the average over the interval is of 9 an hour).28 customers from 2 pm to 5 pm.Hence the mean is of:
8 + 16 + 18 + 28 = 70 customers.
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Consider the function below, which has a relative minimum located at (-3, -18) and a relative maximum located at 1/3, 14/27). f(x) = -x3 - 4x2 + 3x. Select all ordered pairs in the table which are located where the graph of f(x) is decreasing: Ordered pairs: (-1, -6), (2, -18), (0, 0),(1 , -2), (-3 , -18), (-4. , -12)
The ordered pairs (-1, -6), (2, -18), (0, 0), and (-4, -12) do not correspond to the intervals where the graph of f(x) is decreasing. The pairs (1, -2) and (-3, -18) are the correct ones.
To determine where the graph of f(x) is decreasing, we need to examine the intervals where the function's derivative is negative. The derivative of f(x) is given by f'(x) = -3x^2 - 8x + 3.
Now, let's evaluate f'(x) for each of the given x-values:
f'(-1) = -3(-1)^2 - 8(-1) + 3 = -3 + 8 + 3 = 8
f'(2) = -3(2)^2 - 8(2) + 3 = -12 - 16 + 3 = -25
f'(0) = -3(0)^2 - 8(0) + 3 = 3
f'(1) = -3(1)^2 - 8(1) + 3 = -3 - 8 + 3 = -8
f'(-3) = -3(-3)^2 - 8(-3) + 3 = -27 + 24 + 3 = 0
f'(-4) = -3(-4)^2 - 8(-4) + 3 = -48 + 32 + 3 = -13
From the values above, we can determine the intervals where f(x) is decreasing:
f(x) is decreasing for x in the interval (-∞, -3).
f(x) is decreasing for x in the interval (1, 2).
Now let's check the ordered pairs in the table:
(-1, -6): Not in a decreasing interval.
(2, -18): Not in a decreasing interval.
(0, 0): Not in a decreasing interval.
(1, -2): In a decreasing interval.
(-3, -18): In a decreasing interval.
(-4, -12): Not in a decreasing interval.
Therefore, the ordered pairs (-1, -6), (2, -18), (0, 0), and (-4, -12) are not located in the intervals where the graph of f(x) is decreasing. The correct answer is: (1, -2), (-3, -18).
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Note the complete and the correct question is
Q- Consider the function below, which has a relative minimum located at (-3, -18) and a relative maximum located at 1/3, 14/27).
\(f(x) = -x^3 - 4x^2 + 3x\).
Select all ordered pairs in the table which are located where the graph of f(x) is decreasing: Ordered pairs: (-1, -6), (2, -18), (0, 0),(1 , -2), (-3 , -18), (-4. , -12)
Tanisha and elicia and ana are cousins. Tanisha is twice as old as Ana, and Elicia is two years older than tanisha. the summ if all their ages is 37. use the 5D process to determine the age of each girl
Answer:
Tanisha = 14 years
Ana = 7 years
Elicia = 16 years
Step-by-step explanation:
Let T = age of Tanisha
Let A = age of Ana
Let E = age of Elicia
Tanisha is twice as old as Ana:
T = 2A
⇒ A = (1/2)T
Elicia is 2 years older than Tanisha:
E = 2 + T
Sum of all their ages is 37:
A + E + T = 37
Substitute A = (1/2)T and E = 2 + T into A + E + T = 37 and solve for T:
⇒ (1/2)T + 2 + T + T = 37
⇒ (5/2)T = 35
⇒ T = 14
If T = 14, then
A = (1/2)T = (1/2) 14 = 7
If T = 14, then
E = 2 + T = 2 + 14 = 16
Hurry - Please Help = 2 questions.
Answer:
3. f(3) = 16
4. h(3) = 4
Step-by-step explanation:
3.
f(x) = x² + 7
f(3) = 3² + 7
f(3) = 16
4.
h(x) = 12/x
h(3) = 12/3
h(3) = 4
2a + 3x + a + 5x = what
Answer:
3 a + 8 x
Step-by-step explanation:
Answer:
3a + 8x
Step-by-step explanation:
2a + 3x + a + 5x
add 2a and a
3a + 3x + 5x
add 3x plus 5x
3a + 8x
hope this helped..
plz mark as BRAINLIEST
{2x|x E positive integers} what are the four smallest elements of each set
Answer:mark me as brainliest
Step-by-step explanation:
mark me as a
Determine if the ordered pairs represent a direct variation or inverse variation.
{(1, 16), (2, 8), (4, 4)}
A. direct variation
B. inverse variation
Answer:
A direct variation
Step-by-step explanation:
A rectangular parking lot has an area of 2/3 square miles. The length of the parking lot is 1/6 of a mile. What is the width, in miles, of the parking lot ?
Answer
Width of the parking lot = 4 miles
Explanation
The area of a rectangle is given as
Area = L × W
where
L = Length of the rectangle = (1/6) mile
W = Width of the rectangle = ?
Area = (2/3) square miles
Area = L × W
(2/3) = (1/6) × W
\(\begin{gathered} \frac{2}{3}=\frac{1}{6}\times W \\ \frac{2}{3}=\frac{W}{6} \\ \text{Cross multiply} \end{gathered}\)3W = (2)(6)
3W = 12
Divide both sides by 3
(3W/3) = (12/3)
W = 4 miles
Hope this Helps!!!
What is the length of line segment AC?
Answer:
x = 7 and AC is 18 cm ...
plz mark my answer as brainlist plzzzz vote me also
A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(orange,green)
1/15
2/15
3/31
1/5
The probability of drawing an orange marble and then a green marble without replacement is (a) 1/15 .
The probability of drawing an orange marble on the first draw = 2/10 because there are 2 orange marbles out of total of 10 marbles .
After 1 orange marble is drawn, there are 9 marbles left in the box, of which 3 are green.
So, the probability of drawing a green marble on the second draw, given that an orange marble was drawn on the first draw, is 3/9.
⇒ P(orange, green) = P(orange) × P(green | orange was drawn)
⇒ P(orange, green) = (2/10) × (3/9) = 6/90 = 1/15 ;
Therefore , the value of P(Orange , Green) is = 1/15 .
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The given question is incomplete , the complete question is
A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(orange ,green)
(a) 1/15
(b) 2/15
(c) 3/31
(d) 1/5
Please help me I’ll mark you brainly
On solving the provided question, we can say that - here in graph we have on solving equation \(2x^2+ 9y^2 \\\) = \(8 + 9 = 17\)
What is equation?An equation is a formula in mathematics that joins two statements with the equal symbol = to represent equality. The definition of an equation in algebra is a mathematical statement proving the equality of two mathematical expressions. In the equation 3x + 5 = 14, for instance, the terms 3x + 5 and 14 are separated by an equal sign. The link between two phrases on either side of a letter is expressed mathematically. There is often only one variable, which is also the symbol. instance: 2x - 4 Equals 2.
here,
from graph, x= 2
y = 1
\(2x^2+ 9y^2 \\\)
\(8 + 9 = 17\)
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What is the meaning of "\(F=\left \{ (x,y):\varphi (x,y,p) \right \}\)"?
The expression "F = {(x, y) : φ(x, y, p)}" represents a set of ordered pairs (x, y) that satisfy a condition defined by the function φ. The interpretation and nature of the set F depend on the specific function φ and the parameter p, which determine the relationship between the variables x, y, and p.
The expression "F = {(x, y) : φ(x, y, p)}" represents a set F consisting of ordered pairs (x, y) that satisfy a particular condition defined by the function φ, which takes the variables x, y, and p as inputs.
To fully understand the meaning of F, we need to delve into the function φ and its relationship with the variables x, y, and p. The function φ could represent a wide range of mathematical relationships or conditions that determine the inclusion of certain pairs (x, y) in the set F.
For instance, let's consider a specific example where vraphi(x, y, p) is defined φ(x, y, p) = \(x^2 + y^2 - p^2.\)In this case, F = {(x, y) : \(x^2 + y^2 - p^2\)= 0} represents a set of ordered pairs (x, y) that satisfy the equation \(x^2 + y^2 - p^2 = 0.\) This equation represents a circle with radius p centered at the origin (0, 0). Consequently, F corresponds to all the points lying on the circumference of this circle.
It is important to note that the specific meaning and implications of F heavily rely on the nature of the function φ and the parameter p. Different functions and parameters will yield distinct sets F with their own unique characteristics and interpretations.
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im crying please help me so much
Answer:
A and D
Step-by-step explanation:
25 x 10 to the power of 6 in a standard form
Find the pair of numbers that completes the factorization. x^2 - 3x - 40 = (x +?)(x-?)
a- 5,8
b- 4,10
c- 10,4
d- 8,5
answer
a. 5,8
explanation
use numbers in each answer choice
+5 * -8 = - 40
+5 -8 = -3
Consider the form \(x^2+bx+c\). Find a pair of integers whose product is \(c\) and whose sum is \(b\). In this case, whose product is -40 and whose sum is -3.
\(\longrightarrow\boxed{\bold{(-8,5)}}\)
Write the factored form using these integers.
\((x-8) \ (x+5)\)