Step-by-step explanation:
this is a multiplication dot, right ?
so,
(f.g)(x)
or
(f×g)(x)
any arithmetic operation (like +, -, ×, ÷) between 2 functions is done by applying that operation to the functional expressions.
(f×g)(x) = (x² - 12x + 35)(x - 5) =
= x³ - 5x² - 12x² + 60x + 35x -175 =
= x³ - 17x² + 95x - 175
Step-by-step explanation:
(f.g)(x) = f(x) . g(x)
= (x² - 12x + 35)(x - 5)
=x(x²-12x+35) - 5(x²-12x+35)
= x³-12x²+35x-5x²+60x-175
(f.g)(x)=x³-17x²+95x-175
A blueprint was using a scale of 3cm=4.5m. Find
the actual length if it is 5cm on the drawing.
A 1.5 m
B. 13.5 m
C. 1.5 m
D. 1.7 m
Answer:
7.5
Step-by-step explanation:
You didn't list the right answer choices. But I think 7.5 is the answer.
URGENT PLS!!
The equation of the line passing through the points (2,1) and (-6, -5) is given by ax+by=10. What is the value of a?
Answer:
a=15
Step-by-step explanation:
Carnival A charges an entrance fee of $3.00 and $0.75 per ticket for the rides. Carnival B charges an entrance fee of $14.00 and $0.50 per ticket for the rides. How many tickets must be purchased in order for the total cost at Carnival A and Carnival B to be the same?
A. 44
B. 36
C. 28
D. 48
show work if u can , thanks
Answer:
36
Step-by-step explanation:
The formulas are 3+. 75x and 14+. 5x. Plug them into a graphing calculator and find where the lines intersect. Or plug in each answer choice for x and see which one give you the same answer
Answer:
44
Step-by-step explanation:
i cant show work, but i got this same question right.
[Please help me on this- I will give you brainlist!!]
Write the terms in standard form. Then state the degree of the polynomial and the leading coefficient (LC).
For the polynomial 9, 3x², 8x; the degree is 2 and the leading coefficient is 3
What is an equation?An equation is used to show the relationship between numbers and variables.
Polynomial is an expression composed of variables, constants and exponents using mathematical operations such as addition, subtraction, multiplication and division
The degree is the highest exponent of variable for the polynomial. The polynomial with degree of 2 is known as a quadratic polynomial
Given the polynomial:
9, 3x², 8x
Writing in standard form is done by rearranging from highest exponent of variable to least. This is:
3x², 8x, 9
Hence the degree is 2 and the leading coefficient is 3
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$7.90 for 50 ounces of laundry soap
somebody help please
Answer:
Step-by-step explanation:
because HA⊥HR, HR⊥DR, so HA ║ DR, then we know ∠DHR=∠ARH,
we konw, AR=HD, They have a common segment HR, as well as the same angle，so HRA≅RHD
Is the given expression equal to - 2(5.5+ 4.5b)?
Select Yes or No for each expression.
Yes No
- 9b+ 11
- 9 - 11
- 11-9b
Answer:
i'm not to sure but i think its all no
Step-by-step explanation:
Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range
y= -5x^2 - 4x + 1
Domain: all the real numbers
Range: y ≤ 9/5
i hope u can see the attached graph! :)
Answer:
a)
Step-by-step explanation:
vertex is at (-0.4, 1.8) so range must be less than or equal to 1.8
Simplify using appropriate property: 5/7 X 1/5 + 5/7 X 3/5Simplify using appropriate property:
Answer:
4/7
Step-by-step explanation:
5/7 x (1/5+3/5) = 5/7 x 4/5 = 4/7
can someone help please ?
Answer:
A
Step-by-step explanation:
36 divided by 4 is 9 than you multiple that by 3 which is 27.
what is 1,792 c = gal
Answer:
1,792 c = 112 gal.
Step-by-step explanation:
Because their 16 cups in 1 gallon, we will divide 1,793 by 16 and we get 112. Therefore, 112 is our answer.
Answer:
112 gallons
Step-by-step explanation:
there are 16 cups in 1 gallon
1=16
?=1792
to solve this, divide 1792 by 16 to get 112 gallons
112*16 is 1792
Need help on this guys
Answer:
pretty sure its 5
Step-by-step explanation:
What is the value of the expression 4x 3 x )+ 5x x 2 for x 3?
The value of the given expression 4x(3-x)+5x(x-2) when x = -3 is 3.
What are expressions?A phrase is considered a mathematical expression if it contains at least two numbers or variables and one or more mathematical operations.
A number is 6 more than half of the other number, which is x.
This statement is represented by the mathematical equation x/2 + 6.
So, we have the expression:
4x(3-x)+5x(x-2)
Now, the value of the expression when x = -3.
Insert values and calculate as follows:
4x(3-x)+5x(x-2)
4(-3)(3-(-3))+5(-3)((-3)-2)
-12(6)-15(-5)
-72 + 75
3
Therefore, the value of the given expression 4x(3-x)+5x(x-2) when x = -3 is 3.
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Correct question:
What is the value of the expression 4x(3-x)+5x(x-2) for x=(-3)?
Here is a square pyramid and its net.
The lateral faces are congruent triangles. The base (shaded) is a square.
(All lengths are in centimeters.)
A. Find the area of the base of the pyramid.
B. Find the area of one lateral face of the pyramid
C. Use the net to find the lateral surface area of the pyramid. The base is not included.
D. Use the net to find the total surface area of the pyramid.
Answer:
A. 9 [tex]cm^{2}[/tex]
B. 9.6 [tex]cm^{2}[/tex]
C. 38.4 [tex]cm^{2}[/tex]
D. 47.4 [tex]cm^{2}[/tex]
Step-by-step explanation:
A. Area of the base of the pyramid = length x length
= 3 x 3
= 9 [tex]cm^{2}[/tex]
B. Area of one lateral face of the pyramid = area of a triangle
= [tex]\frac{1}{2}[/tex] x base x height
= [tex]\frac{1}{2}[/tex] x 3 x 6.4
= 9.6 [tex]cm^{2}[/tex]
Area of one lateral face of the pyramid = 9.6 [tex]cm^{2}[/tex]
C. The lateral surface area of the pyramid = 4 x area of one lateral face
= 4 x 9.6
= 38.4
The lateral surface area of the pyramid = 38.4 [tex]cm^{2}[/tex]
D. The total surface area of the pyramid = lateral surface area of the pyramid + area of the base
= 38.4 + 9
= 47.4
The total surface area of the pyramid = 47.4 [tex]cm^{2}[/tex]
What is the interval of zero?
If the confidence interval for a difference between groups includes zero, that means that if you run your experiment again you have a good chance of finding no difference between groups.
If the confidence interval for a difference between groups includes zero, that means that if you run your experiment again you have a good chance of finding no difference between groups.
If the confidence interval for a correlation or regression includes zero, that means that if you run the experiment again there is a good chance of finding no correlation in the data.
In both of these cases, you will also find a high p-value when you run the statistical test, meaning that the results could have occurred under the null hypothesis of no relationship between variables or no difference between groups.
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A linear function is shown on the graph.
A linear function beginning with open circle at negative 3 comma negative 5 and ending with an open circle at 3 comma 7.
What is the domain of the function?
{y | −5 ≤ y ≤ 7}
{y | −5 < y < 7}
{x | −3 ≤ x ≤ 3}
{x | −3 < x < 3}
Answer: D
Step-by-step explanation:
In this problem, we are asked to find the domain of the function. Domain is finding the interval of the function of the x value.
Since we are finding domain, we can eliminate A and B because those are looking at y interval, or range.
This leaves us with C and D. They are almost the same except for the ≤ in C and < in D. The difference between ≤ and < is the fact that ≤ includes and touches the point, and < doesn't.
The function has open circles at x=-3 and x=3. That means they don't touch and include x=-3 and x=3. The function only get's really close to those points, but not include them. This tells us that D is the answer.
The domain of the function is {x | −3 < x < 3}. Thus, Option D holds the truth.
The domain of a function refers to the interval of the x values of the function.
In this case, we are asked to find the domain of a linear function that is shown on a graph. The graph starts at an open circle at negative 3, negative 5 and ends at an open circle at 3, 7.
To find the domain, we need to look at the x interval of the function. Options A and B refer to the y interval or range and can be eliminated.
The remaining options, C and D, are similar, except for the fact that C includes and touches the point with "≤", while D doesn't with "<". The open circles at x=-3 and x=3 indicate that the function only gets close to these points, but does not include or touch them.
Thus, the correct answer is option D, {x | −3 < x < 3}.
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A large rectangular box has a volume of 15. 75 cubic feet the box is 2. 5 feet long and 1. 5 feet wide what is the height of the box
A large rectangular box has a volume of 15. 75 cubic feet the box is 2. 5 feet long and 1. 5 feet wide. So the height of the box is 4.2 feet.
The formula to find the volume of a rectangular box is
V = lwh
where l is the length, w is the width, and h is the height.
Given that the volume of the box is 15.75 cubic feet, the length is 2.5 feet and the width is 1.5 feet, we can use the formula to find the height.
V = lwh
15.75 = 2.5 × 1.5 × h
h = 15.75/ (2.5 × 1.5)
h = 4.2
Therefore, the height of the box is h = 4.2 feet
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SOLVE FOR BRAINLYY!! AND FOR EMAIL :)
Answer:
3x([tex]y^{4}[/tex]+2)-9
hope this helps :DDDDD
m<1=
m<2=
m<3=
Please help, no links please
Answer:
∠1 = 90° because the figure is a kite and the diagonals form 90° angles
∠2 = 90° - 27° = 63°
∠3 = ∠2 = 63°
Answer:
m<1 = 90 degrees
m<2 = 63 degrees
m<3 = 63 degrees
Step-by-step explanation: Angle 1 is a right angle, which is equal to 90 degrees. To find angle 2, you must know that a triangle's angles all add up to 180 degrees. You must realize that the angle below the 2 is 90 degrees since it is supplementary to angle 1. Now, you have to add the given angle of 27 degrees to 90 degrees and then subtract that sum from 180 degrees to get an answer of 63 degrees (27+90=117 --> 180-117=63). Angles 2 and 3 have the same value because they are basically symetrical to one another since both of their triangle's side lengths are equivalent.
MARKING BRAINLIEST!! Use a reference angle to find the exact value of the sine, cosine, and tangent of each angle. -pi. (unit circle) -pi= -180 degrees btw.
Answer:
The answer is below
Step-by-step explanation:
The question is not complete, a complete question is in the form:
Use a reference angle to find the exact value of the sine, cosine, and tangent of each angle. 260°
Solution:
There are four quadrants which divides into four equal parts. If θ is the angle:
If θ falls in the first quadrant, the reference angle = θ
If θ falls in the second quadrant, the reference angle = 180 - θ
If θ falls in the third quadrant, the reference angle = θ - 180
If θ falls in the fourth quadrant, the reference angle = 360 - θ
Given 260°, this falls in the third quadrant, hence the reference angle = 260 - 180 = 80°.
In the third quadrant, sine and cosine are negative while tangent is positive. Hence:
sin(260) = -sin(80) = -0.985
cos(260) = -cos(80) = -0.174
tan(260) = tan(80) = 5.67
Are 2 sides of an isosceles triangle?
Yes, the lengths of the two sides of an isosceles triangle are equal.
An isosceles triangle is a type of triangle that has two sides that are equal in length. The other side of the triangle can be either longer or shorter than the two equal sides. The two equal sides are called the legs, and the other side is called the base. The angles opposite the two equal sides are also equal in measure. Because of this, the two equal sides create an angle bisector that divides the base into two equal parts. This angle bisector forms two angles of equal measure as well. Thus, the two equal sides of an isosceles triangle are a defining feature of the shape.
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Find the difference.
(5x2 - 3x + 7) - (3x2 + 4x - 5)
Answer:
16-7x
Step-by-step explanation:
10x-3x+7-6-4x+5
16-7x
True or false explain why
Answer: False
The estimated points can be found first by counting on the x-axis then the y-axis. Negative numbers are to be counted downward on the y-axis, positive numbers are to be counted upwards on the y-axis. Negative numbers are to be counted to the left of the x-axis, positive numbers are to be counted to the right of the x-axis
Find the H.C.F of following expressions:2x²(x+2)(x-2)and4x(x+2)(x-4)
Given:
The given expressions are [tex]2x^2(x+2)(x-2)[/tex] and [tex]4x(x+2)(x-4)[/tex].
To find:
The H.C.F. of the given expressions.
Solution:
The two expressions are:
[tex]2x^2(x+2)(x-2)[/tex]
[tex]4x(x+2)(x-4)[/tex]
It is clear that 2x and (x+2) are the common factors. So, we need to multiply these common factors to get the H.C.F. of the given expressions.
[tex]H.C.F.=2x(x+2)[/tex]
Therefore, the H.C.F of the given expressions is [tex]2x(x+2)[/tex].
Determina en cada caso, si la función corresponde a una función lineal o a una función afín. a. Y = -5x b. Y = -3x – 2 c. Y = 2x + 4 d. Y = 1x/4 – 2
Answer:
Sabemos que una función lineal es de la forma:
f(x) = m*x
Mientras que una funcion afin es de la forma:
g(x) = m*x + n
Entonces para reconocer si una función es lineal o afín, simplemente debemos ver si tenemos un término constante o no (un término constante es un término que no está siendo multiplicado por la variable x).
a) y = -5*x
No tenemos término constante, entonces es una función lineal.
b) y = -3*x - 2
Acá tenemos un término constante igual a -2, entonces esto es una función afín.
c) y = 2*x + 4
Acá tenemos un término constante igual a 4, entonces esto es una función afín.
d) y = (1/4)*x - 2
Acá tenemos un término constante igual a -2, entonces esto es una función afín.
Find the value of p and q for which the system of equations represent coincident lines:
2x + 3y = 7
(p + q + 1)x + (p + 2q + 2)y = 4(p + q) +1
Answer: The value of p and q for which the system of equations represent coincident lines is p = 2 and q = 1.
Step-by-step explanation: To represent coincident lines, the two lines must be proportional. Therefore, the slope of the second line must be equal to the slope of the first line.
The slope of the first line is 3/2. The slope of the second line is p + 2q + 2/p + q + 1. Therefore, we set these two equal:
3/2 = p + 2q + 2/p + q + 1.
Cross multiplying, we get:
3(p + q + 1) = 2(p + 2q + 2).
Simplifying, we get:
3p + 3q + 3 = 2p + 4q + 4.
Combining like terms, we get:
p - q = 1.
Therefore, the value of p and q for which the system of equations represents coincident lines is p = 2 and q = 1.
pls help with this question its due today the picture is under
Using PEDMAS to solve the mathematical expression given, the value is 2
What is PEMDASPEMDAS stands for Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. It is an acronym used to remember the order of operations in math problems. It is also sometimes referred to as Order of Operations.
In this problem, we will need to use and apply the rules of PEMDAS.
We will need to break this into different components and then bring them together afterwards.
[(3/5 + 0.425 - 0.005) ÷ 0.1] / [30.5 + 1/6 + 3(1/3)] + [6(3/4) + 5(1/2)] / [(26 ÷ 3(5/7)] - 0.05
This becomes ;
[10.2 / 34] + [12.25 / 7] - 0.005
We can further resolve this into
2.05 - 0.005
And then we just subtract the values from one another
2.05 - 0.005 = 2
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The vertices of a trangular plot of land are A(1,5), B(7,5), and C(8,0)
The area of the triangular plot of land from the vertices is 20 square units
How to determine the area of the triangular plot?From the question, we have the following parameters that can be used in our computation:
A(1,5), B(7,5), and C(8,0)
Represent the vertices properly
So, we have the following representation
A = (1,5)
B = (7,5)
C = (8,0)
The area of the triangle is calculated from the vertices using the following equation
Area = 0.5 * |Ax(By - Cy) + Bx(Ay - Cy) + Cx(Ay - By)|
Substitute the known values in the above equation, so, we have the following representation
Area = 0.5 * |1 * (5 - 0) + 7 * (5 + 0) + 8 * (5 - 5)|
Evaluate the sum of products
Area = 0.5 * |40|
Remove the absolute bracket
Area = 0.5 * 40
Evaluate
Area = 20
Hence, the area of ABC with vertices is 20 square units
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Complete question
The vertices of a trangular plot of land are A(1,5), B(7,5), and C(8,0)
Calculate the area.
NEED HELP ASAP
NO LINKS AND NO JUST SAYING HI, PLEASE ANSWER LEGITIMATELY! THANK YOU!!!! <3
Answer:
x=42.5
Step-by-step explanation:
First, start by setting up the equation
these are both same side interior angles, so they both add up to 180
(3x+10) + x = 180
4x+10 =180
subtract both sides by 10
-10 -10
4x=170
divide both sides by 4
x=42.5
Please help I will give brainliest
Answer:
13X
Step-by-step explanation:
if I am correct I added 6+7 then add X to it.
Answer:
∠ 1 = 37°
Step-by-step explanation:
(9x - 8) and (6x + 7) are corresponding angles and are congruent, then
9x - 8 = 6x + 7 ( subtract 6x from both sides )
3x - 8 = 7 ( add 8 to both sides )
3x = 15 ( divide both sides by 3 )
x = 5
Then
∠ 1 = 6x + 7 = 6(5) + 7 = 30 + 7 = 37°