2. Given that f(x)=5x-3 and g(x)= x^2 -2, find the following... a) f(-3) b) g(4) c) f(3)•g(3)
Answers
Question:
Solution:
Consider the following functions:
[tex]f(x)=\text{ 5x-3}[/tex]and
[tex]g(x)=x^2-2[/tex]a) f(-3):
if we evaluate the function f at x = -3, we get:
[tex]f(-3)=\text{ 5(-3)-3}=\text{ -15-3= -18}[/tex]so that, the correct answer is:
[tex]f(-3)=\text{ -18}[/tex]b) g(4):
if we evaluate the function g at x = 4, we get:
[tex]g(4)=4^2-2=\text{ 16-2= 14}[/tex]so that, the correct answer is:
[tex]g(4)=\text{ 14}[/tex]
c) f(3)*g(3):
Step 1: evaluate f at x = 3:
[tex]f(3)=\text{ 5(3)-3}=\text{ 15-3 = 12}[/tex]Step 2: evaluate g at x = 3:
[tex]g(3)=3^2-2=\text{ 9-2= 7}[/tex]Step 3: multiply f(3) and g(3):
[tex]f(3)g(3)=\text{ (12)(7)=84}[/tex]so that, we can conclude that the correct answer is:
[tex]f(3)g(3)=\text{84}[/tex]
Related Questions
Bella is learning to type. She typed a letter to her teacher but misspelled 8 words. If she misspelled 25% of the words she typed, how many words did she type in her letter.
Answers
Bella is learning to type. She typed a letter to her teacher but misspelled 8 words. If she misspelled 25% of the words she typed, how many words did she type in her letter?
_________________________________________
She misspelled 8 words = 25% of the words she typed
25%= (8 / total words)* 100
0.25 = 8 / total words
total words = 8/0.25
total words = 32
__________________________-
The total words she typed in her letter were 32
2. If f(x) = 3x³ - 4x + 6and g(x)= x³ + 3x² + x - 3, then find
A.(f+g)(x)
B.(f- g)(x)
C.(3f+2g)(x)
D. (3f-2g)(x)
Answers
Answer:
Below in bold.
Step-by-step explanation:
f(x) = 3x³ - 4x + 6 and g(x) = x³ + 3x² + x - 3
A. (f+g)x = 3x³ - 4x + 6 + x³ + 3x² + x - 3 = 4x³ + 3x² - 3x + 3.
B. (f-g)x = 3x³ - 4x + 6 - (x³ + 3x² + x - 3) = 2x³ - 3x² - 5x + 9.
C. (3f+2g)(x) = 9x³ - 12x + 18 + 2x³ + 6x² + 2x - 6 = 11x³ + 6x² - 10x - 12.
C. (3f-2g)(x) = 9x³ - 12x + 18 - (2x³ + 6x² + 2x - 6) = 7x³ - 6x² - 14x - 24.
If x = 15 units and h = 12 units, then what is the area of the rhombus pictured above?
A.
225 square units
B.
45 square units
C.
180 square units
D.
60 square units
Answers
The rhombus has an area value of 180 square units
How to calculate the area of the rhombus?From the question, the given parameters arr
Shape = Rhombus'
Base = x
Height = h
Also, from the question, we have
x = 15
h = 12
The above parameters mean that
Base = 15
Height = 12
The area of the rhombus is then calculated using the following area formula
Area = Base * Height
Substitute the known values in the above equation
This gives
Area = 15 x 12
Evaluate
So, we have the following equation
Area = 180
Hence, the area is 180 square units
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The area of the rhombus is 180 square units, which is the correct answer would be an option(C).
What is the area of the rhombus?The area of the rhombus is calculated as the product of its height and base.
The formula of the area of the rhombus is following
Area of the rhombus = Height × Base
The given rhombus has :
Height (h) = 12 units
Base (x) = 15 units
Area of the rhombus = Height × Base
Area of the rhombus = h × x
Substitute the values of x = 15 and h = 12 in the above equation
Area of the rhombus = 15 × 12
Area of the rhombus = 180 square units
Hence, the area of the rhombus is 180 square units
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represented by the equation 5x + 2y = 10.
How is the slope of the line related to values of
A, B, and C in standard form Ax + By = C?
-Can you please explain how to solve this problem? I wouldnt want only the answer. Thank you so much
Answers
The equation given 5x + 2y = 10 given, represents the slope considering the form Ax + By = C: by slope = - A/B = -5/2
How to find the slope of the lineAx + By = C
rewriting in standard form which is y = mx + c, where m is the slope, is done as follows
By = -Ax + C
y = ( - Ax + C ) / B
y = - Ax/B + C/B
comparing with standard form the slope, m is - A/B
using the other equation 5x + 2y = 10
rewriting gives
y = -5x/2 + 10/2
the slope here is -5/2
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A school has 14 rooms with 28 desks in each room. How many desks are in the school?
Answers
Answer:
392
Step-by-step explanation:
There are 14 desks with 28 rooms, or
14 x 28
392
I'm trying to rank up so if you could mark this brainliest, it would really help
Solve for m.
D=(m− 3)
m=
(Simplify your answer. Use integers or fractions for any
numbers in the expression.)
Answers
m = D +3
What is algebra?The basics of algebra include numbers, variables, constants, equations, linear and equations. It also includes the basic arithmetic operations : addition, subtraction, multiplication, and division within the algebraic expressions. Algebra is the study of mathematical symbols and the rules for using these symbols in formulas .
The three most used laws are the Commutative, Associative, and Distributive Laws. The main rule of algebra is balancing. The equation has equals sign and both the sides should be equal.
Given, D = (m -3)
we can write,
m = D+3
if D is assumed to be 2 (integer) then,
m = 2+3= 5 (integer)
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A trough at the end of a gutter spout is meant to direct water away from the house. The
homeowner makes the trough from a rectangular piece of of aluminum that is 20 in. long and 12
in. wide. He makes a fold along the long sides a distance of x inches from the edge. If he wants the
trough to hold 360 in³ of water, how far from the edge should he make the fold?
Answers
Answer:20 in * (12 in - 2X in) * (X in) = 360 in3
This can be simplified by dividing both sides by 20 in:
20 in * (12 in - 2X in) * (X in) = (360 in3/ 20 in)
After dividing both sides by 20 in:
(12 in - 2X in) * X in = 18 in2
Distribute X in. across (12 in -2X in):
12X in2 - 2X2 in2 = 18 in2
1.Subtract 18 in2 from both sides:
12X in2 - 2X2 in2 - 18 in2 = 0
2. Rearrange the equation:
-2X2 in2 + 12X in2 - 18 in2 = 0
This for matches the form for a quadratic equation (Ax2 + Bx +C = 0)
You can then plug these values into the quadratic formula to solve for X
so your answer is X=3
-5y - 35
C cncbfbfbdbdjxdbxjdjdvdbfbfbfbfnfnfnfb
Answers
Answer:
5(y - 7)
Step-by-step explanation:
common factor
5-y-35
5(y - 7)
plsssssssssssssss helpppppppppppppppppppppp
Answers
Points X(6,4) and Y(-4,-6) are the endpoints of XY. What are the coordinates of point Z on XY such that XZ is 4/5 the length of XY
Answers
Answer:
(-2, -4)
Step-by-step explanation:
Z_x = (Y_x - X_x) * (4/5) = (-4 - 6) * (4/5) = -8
Z_y = (Y_y - X_y) * (4/5) = (-6 - 4) * (4/5) = -8
-8 + 6 = -2
-8 + 4 = -4
Please help meeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!!
Use vocabulary words to describe how to completely factor the expression 4x^-5 + 16x^-3, and write the factors using only positive exponents.
Vocabulary-monomial expression
negative exponents law
scientific notation
significant digits
Answers
The factorized expression is (4/x³)(1/x² + 4).
The expression given to us is 4x^-5 + 16x^-3.We need to factorize the above expression.We need to use only the positive exponents.The number of times a number has been multiplied by itself is referred to as an exponent. There are four different sorts of exponents: positive, negative, zero, and rational/fractional. By interpreting the exponent as the total number of times the base number must be multiplied by the same base, one may determine the value of the number.We will use the laws of exponents.a^(-m) = 1/a^mWe can rewrite the expression as 4/x^5 + 16/x³.Now take out the common from the two terms.The expression becomes (4/x³)(1/x² + 4).Thus, we have successfully factorized the expression using only the positive exponents.To learn more about exponents, visit :
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round to 1 significant figure
Answers
Round to 1 significant figure
What is Rounding?
To estimate a certain number in a context, rounding is a process. Look at the next digit in the correct position to determine how to round a number; if it is less than 5, round down, and if it is 5 or more, round up. The term "rounding decimals" describes the accurate rounding of decimal figures.
How to round a figure
It rounds to the most important figure in the number. To round to a significant figure: look at the first non-zero digit if rounding to one significant figure. look at the digit after the first non-zero digit if rounding to two significant figures.
To understand this term lets take and example:
24982 correct to 1 significant figure
If we round up, then the answer is
30,000
but if we were to round down, the answer would be
20,000;
If we want to determine which one is correct, we have to look at the second digit of the original number, which is
4
Since the second digit is less than 5
we can round down, so the answer would have to be
20,000
Hence, 24982 round to 1 significant figure is 20,000
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simplify using suitable property -4/5+-1/3+1 2/5+7/3
PLEASE DONT SPAM
WILL MARK BRAINLIEST
Answers
Answer:
2
Step-by-step explanation:
[tex]=-\frac{12}{15} + -\frac{5}{15} + \frac{12}{15} + \frac{35}{15} \\=\frac{30}{15} \\= 2[/tex]
Answer:
39/15
Step-by-step explanation:
-4/5+-1/3+1 2/5+7/3
Convert all to fractions having the least common denominator. The mixed denominators of 3 and 5 could be converted to denominators of 15, thereby allowing them to be numerically combined.
-4/5+-1/3+1 2/5+7/3
(-4/5)(3/3) = -12/15
(-1/3)(5/5) = -5/15
(+1 2/5) = (5/5 + 2/5) = (7/5)(3/3) = 21/15
(7/3)(5/5) = 35/15
Since we have a common denominator (15) we can now sum the individual fractions by adding their numerators:
-12 -5 + 21 + 35 = 39
Now add back the denominator
The result is 39/15
Levi’s chooses three different numbers the sun of the three numbers is 24 one of the number is a square number the other two numbers are factors of 20 find the three numbers chosen by Levi’s write the number in ascending order
Answers
The three numbers that are chosen by Levi are 5, 9 and 10.
How to calculate the value?It should be noted that the factors of 20 are 1, 2, 4, 5, 10 and 20.
Possible sum of factors of 20 are: 3, 5, 6, 7, 9, 11, 12, 14, 15, 21, 22, and 24.
Difference between 24 and a possible sum of factors of 24 are:
(21, 19, 18, 17, 15, 13, 12, 10, 9, 3, 2 , 0.)
The square numbers less than 24 are ( 1, 4, 9, 16).
Therefore the square number is 9.
And sum of the factors of 20 is 24 -9 = 15.
Therefore, the factors of 20 are = 5 and 10
Thus the given numbers are 5, 9 and 10.
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12 | 13
1
3/4
5/6
7/8
li
2
Angles 1 & 5 are an example of:
1₂
13
Answers
Answer:
corresponding angles
Step-by-step explanation:
1 and 5 are corresponding angles
they are in the same place
that is why they are corresponding
An angle measures 82° less than the measure of its complementary angle. What is the measure of each angle?
Answers
Answer: 4 and 82 i think
. A swim coach has at most $800 to buy equipment for the swim team. Each
pull buoy costs $5.50 and each kickboard costs $10. Let X represent the
number of pull buoys and y represent the number of kickboards.
a. Write an inequality for the scenario..
5.50x+10y_< 800 I already wrote the inequality now graph the inequality
Answers
The inequality for number of pull buoys and the number of kickboards is; 5.50x + 10y ≤ 800.
How do you define a inequality?A statement of an order relationship between two numbers or algebraic expressions (greater than, greater than or equal to, less than, or less than or equal to).
For the given question.
Let 'x' represent the number of pull buoys.
Let 'y' represent the number of kickboards.
The cost of each pull buoy = $5.50.
The cost of each kickboard costs = $10.
The total swim budget = $800.
The inequality for the scenario is -
5.50x + 10y ≤ 800.
Plot the graph;
Put x = 0; y = 80 ; (0, 80)
Put y = 0, x = 145.5 (145.5, 0)
Plot the obtained points on the graph.
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you are driving on a road that has a 8% uphill grade. this means that the slope of the road is 8/100. approximate the amount of vertical change in your position when you drive 200 feet.
Answers
the amount of vertical change in your position when you drive 200 feet is 16 feet
you are driving on a road that has a 8% uphill grade.
this means that the slope of the road is 8/100.
approximate the amount of vertical change in your position when you drive 200 feet
Therefore our proportion is: (where x is the "vertical" rise)
Slope is defined as rise so
8/100 = x/200
(8*200)/100 = x
16 feet = x
Hence , the amount of vertical change in your position when you drive 200 feet is 16 feet
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jacob said that -3 is a rational number. aaron said that -3 is an irrational number. who is correct?explain
Answers
Any number in the form of p/q where q not equal to zero is called as rational Number. -3 is rational number and Jacob is correct.
What are Rational numbers and Irrational Numbers?Any number in the form of p/q where q not equal to zero is called as rational Number.
An Irrational Number is a real number that cannot be written as a simple fraction: 1.5 is rational, but π is irrational. The root values will also be irrational.
The number -3 is a rational number. We can write -3 in the form of p/q, i.e -3/1 where p is -3 and q is 1.
All rational numbers are obtained by dividing one integer by another.
Since it is possible to obtain -3 by dividing the integer
i.e -3 by 1, as in -3/1,
So -3 is a rational number.
Hence -3 is not a irrational number because -3 we can written as a simple fraction.
So Jacob is correct.
Hence -3 is rational and Jacob is correct.
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Write a rule of reflection
???????
Answers
The rule for the reflection is (x, y) ---> (x+6, y).
what is Reflection?A reflection is a type of transformation that involves flipping a shape, known as the preimage, across a line, known as the line of reflection, to produce a new shape (called the image). You can picture what would happen if you turned the form across the line to graph a reflection.
Given:
The coordinates of L is ( -3, 6).
Now, after the reflection
The x- coordinates increases +6 units on right side.
and, y- coordinates remains the same.
Hence, the rule for the reflection is (x, y) ---> (x+6, y).
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Amy has 4 pound of ground pork to make meatballs she uses 3/8 pound per meatball to make 9 meatballs.how many 1/8 pound meatballs can Amy make with the remaining turkey ?
Answers
Amy can make 29 meatballs from the remaining beef.
What are mathematics operations?
An operation is a function in mathematics that converts zero or more input values (also known as "operands" or "arguments") to a well-defined output value.The operation's arity is determined by the number of operands.Binary operations (i.e., operations of arity 2), such as addition and multiplication, and unary operations (i.e., operations of arity 1), such as additive inverse and multiplicative inverse, are the most commonly studied operations.A zero-arity operation, also known as a nullary operation, is a constant.The mixed product is an example of an arity 3 operation, also known as a ternary operation.Amy has 4 pounds of ground beef to make meatballs and he uses 3/8 pound per meatball to make 9 meatballs
We have to subtract 3/8 from 4
= 4 - 3/8
= 29/8
There are 29/8 pounds of ground beef left
Therefore the number of 1/8 pound meatball that can be produced from 29/8 pounds of ground beef can be calculated as follows;
= 29/8 ÷ 1/8
= 29
Hence Amy can make 29 meatballs
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please help me
ling earns $11.95 per hour. how much is she paid for working:
8 hours?___ 15 hours?___ 38 hours?___
Answers
it's so easy just use a calculator:
8h: $95.60
15h: $179.25
38h: $454.1
A competency test has scores with a mean of 82 and a standard deviation of 2. A histogram of the data shows that the distribution is normal. Between what two values do about 99.7 of the values lie?
Answers
Answer:
Between 76 and 88
Please give the answer.
Answers
The simplified fraction for the expression [tex]a^{-3} / b ^{-2[/tex] is 36/125.
What are exponents?The exponent of a number shows how many times the number is multiplied by itself.
For example, 2×2×2×2 can be written as 24, as 2 is multiplied by itself 4 times. Here, 2 is called the "base" and 4 is called the "exponent" or "power." In general, [tex]x^n[/tex] means that x is multiplied by itself for n times.
Given:
[tex]a^{-3} / b ^{-2[/tex]
Now, a= 5 and b=6
So, substituting the above values in the expression as
= [tex]5^{-3} / 6 ^{-2[/tex]
Using the law of exponents we have
[tex]a^{-m[/tex] = 1/[tex]a^m[/tex]
Thus,
= 6² / 5³
=6 x 6 / 5x 5 x 5
=36 / 125
Hence, the simplified fraction is 36/125.
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g/8 + 64 = 68
solve for g.
Answers
Answer: G=32
Step-by-step explanation:
A shipping container will be used to transport several 40-kilogram crates across the country by rail. The greatest weight that can be loaded into the container is 24500 kilograms. Other shipments weighing 13100 kilograms have already been loaded into the container. Write and solve an inequality which can be used to determine xx, the number of 40-kilogram crates that can be loaded into the shipping container.
HURRY !
Answers
We can load less than or equal to 285 number of 40 kg crates in the shipping container.
The inequality is like 13100 + 40x ≤ 24500
Given,
The weight of crates transported by a shipping container = 40 kg
The greatest weight that can be loaded into the container = 24500 kg
The weight of already loaded shipments in the container = 13100 kg
We have to find and solve an inequality that determines the number of 40 kg crates that can be loaded into the shipping container:
Lets take x as the number of 40 kg crates.
Therefore, weight of container = 40x
The weight should be less than or equal to the maximum weight that can be loaded into the container:
That is,
13100 + 40x ≤ 24500
Now, solve the inequality:
40x ≤ 24500 - 13100
40x ≤ 11400
x ≤ 11400/40
x ≤ 285
So,
We can load less than or equal to 285 number of 40 kg crates in the shipping container.
The inequality is like 13100 + 40x ≤ 24500
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i came up to some degree, but not sure. i will post my notes after.
Answers
Note that sides AD and BE are perpendicular on the same side AC. So the angles CAD and CBE, both are equal to 90 degrees.
Beig the corresponding angles, ADC and BEC are also equal.
And the angle ACD is the common angle in both the triangles.
Therefore by the AAA criteria, the triangles CAD and CBE are similar.
So their corresponding sides must be proportional,
[tex]\begin{gathered} \frac{AD}{BE}=\frac{AC}{BC} \\ \frac{4\sqrt[]{138}}{\sqrt[]{138}}=\frac{6\sqrt[]{3}+BC}{BC} \\ 4=\frac{6\sqrt[]{3}+BC}{BC} \\ 4BC=6\sqrt[]{3}+BC \\ 3BC=6\sqrt[]{3} \\ BC=2\sqrt[]{3} \end{gathered}[/tex]What is the correct form of the partial fraction decomposition for the expression
13x-7
(x+2)(4x-3)
?
Answers
Answer:
fraction decomposition for the expression
13x - 7/(x+2)(4x-3)
There is a proportional relationship between the amount of dark chocolate (in ounces), x, and the amount of almonds (in ounces), y, in each package of Sweet and Salty trail mix.
x (ounces of dark chocolate) 2 y (ounces of almonds) 8
Answers
Answer:
y = 4x
Step-by-step explanation:
You want an equation that represents the proportional relationship between ounces of chocolate (x) and ounces of almonds (y) when we know (x, y) = (2, 8).
Proportional relationA proportional relation can be written using the equation ...
y = kx
where k is a constant.
The value of k can be found if a pair of values is known for x and y.
k = y/x . . . divide by x
k = 8/2 = 4 . . . . use (x, y) = (2, 8) from the table.
The equation for the relationship is ...
y = 4x
The proportional relationship that accounts between the amount of dark chocolate and the amount of almonds is y = 4x.
What is ratio and proportion?
Majority of the explanations for ratio and proportion use fractions. A ratio is a fraction that is expressed as a:b, but a proportion says that two ratios are equal. In this case, a and b can be any two integers. An equation known as proportion shows that the two ratios presented are equal to one another. A ratio is the comparative or condensed form of two quantities of the same type. We may determine how many times one quantity is equal to another using this relationship. The ratio can be defined as the number that can be used to represent one quantity as a percentage of another.
Given, for 2 ounces of dark chocolate(x), 8 ounces of almonds(y) are put in.
Taking the ratio as y to x, we have:
y/x = 8/2 ⇒ y/x = 4 ⇒ y = 4x
Thus, the proportional relationship that accounts between the amount of dark chocolate and the amount of almonds in each package of Sweet and Salty trail mix is y = 4x.
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11=u/28 what does U =
Answers
U=308
11=308/28
it right trust me
Answer:
What do you mean by what does U? if is what I think it is, then:
Step-by-step explanation:
Solve for you by simplifying both sides of the equation, then isolating the variable.
u=308