Answer: a is the answer
Step-by-step explanation:
If f( x ) = 2 x - 9, then f(3) = -3.
True or False
Answer:
True
Step-by-step explanation:
f(x)= 2x - 9
f(3) = 2 X 3 -9
f(3)=6-9
=-3
Answer:
true
Step-by-step explanation:
Evaluate f(3), then set it equal to −3
if f(x) = ln(2), then limx--->2 (f(2)-f(x))/x-2
Answer:
as written, -2with denominator parentheses, 0with f(x)=ln(x) and denominator parentheses, -1/2Step-by-step explanation:
The problem as stated asks for the limit as x approaches 2 of (0/x) -2.
As written, the limit is (0/2) -2 = -2.
Explanation: f(x) is a constant, so the numerator is 0. The ratio 0/x -2 is defined as -2 everywhere except x=0. So, the value at x=2 is 0/2 -2 = -2.
__
If you mean (f(2) -f(x))/(x -2), that limit is the limit of 0/(x-2) = 0 as x approaches 2.
Explanation: f(x) is a constant, so the numerator is 0. The ratio 0/(x-2) is zero everywhere except at x=2. The left limit and right limit are both 0 as x approaches 2. Since these limits agree, the limit is said to be 0.
__
If you mean f(x) = ln(x) and you want the limit of (f(2) -f(x))/(x -2), that value will be -1/2.
Explanation: The value of the ratio is 0/0 at x=2, so we can find the limit using L'Hôpital's rule. Differentiating numerator and denominator, we have ...
lim = (-1/x)/(1)
The value is -1/2 at x=2.
18.You've just placed an order for a set of tools for a new employee. The cost of the tools is $185.95. If you must pay 4% sales tax on the purchase, how much will you pay for the tools? (Round your answer to two decimal places. Note: This question requires two calculations.)
Answer:
Amount pay for tool = $193.39 (Approx)
Step-by-step explanation:
Given:
Cost of the tools = $185.95
Sales tax = 4%
Find:
Amount pay for tool
Computation:
Amount pay for tool = Cost of the tools[1+Sales tax]
Amount pay for tool = $185.95[1+4%]
Amount pay for tool = $193.39 (Approx)
Solve for x. 4x^3 = 2x^-1
Step-by-step explanation:
4x^3=2x^-1
x^3-x^-1=2-4
x^2=-2
x=√2
The product of two rational numbers can always be written as
an irrational number.
a whole number.
an integer
a fraction.
Answer:
D
Step-by-step explanation:
Because I said so
The product of two rational numbers can always be written as a fraction.
A rational number is a number that can be written as the quotient of two integer numbers.
Then if we have two rational numbers:
[tex]a = \frac{x}{y} \\\\b = \frac{z}{w}[/tex]
The product can be written as:
[tex]a*b = \frac{x}{y}*\frac{z}{w} = \frac{x*z}{y*w}[/tex]
Thus, the product of two rational numbers can always be written as a fraction.
If you want to learn more, you can read:
https://brainly.com/question/15815501
How many cubes are needed to build this figure?
7
8
6
9
Answer:
about seven cubes
Step-by-step explanation:
u have to draw a line to seperate the cube so u can count them it will be easier that way
Hi . i'm kinda stuck on this question .
Any help will be appreciated.
Please show workings ;
Solve the following expressions using laws of logarithm and using antilogarithm ;
1.[tex]\sqrt{69.5^2-30.5^2}[/tex]
2. [tex]\frac{371.2^\frac{1}{3}\times 76500 }{1125 \times 0.012}[/tex]
Answer:
62.4499840725.2396667Step-by-step explanation:
Refer to https://brainly.com/question/17913554 for the formulas and the method if not clear here1.................................................
√69.5^2 - 30.5^2 = √(69.5+30.5)((69.5- 30.5) =√100*39 =10√39 =antilog (log (10√39)) =antilog (1 + 1/2 log 39)= antilog (1 + 1/2*1.59106460703) =antilog (1.79553230351) =62.449982..................................................
371.2^(1/3)×76500/(1125×0.012) =371.2^(1/3)×76500/13.5 =371.2^(1/3) × 5666.66666667Solving the first part
antilog (log (371.2^(1/3))) = antilog (1/3 log(371.2)) =antilog (1/3*2.56960796755) =antilog (0.85653598918) = 7.186807Continuation
7.186807× 5666.66666667 = 40725.2396667Note. the numbers are not rounded
Hope it helps.
HURRRYYYY PLEASEEEE!!!!!
Choose all of the TRUE statements.
A.) When you multiply 32.4 x 103, the decimal moves 3 places to the right.
B.) When you divide 32.4 by 102, the decimal moves two places to the left.
C.) When you multiply 0.32 x 102, the decimal moves 2 places to the right.
D.) When you multiply 3.24 by 102, the answer is 3,240.
E.) When you divide 324 by 102, the answer is 3.24.
A=f
b=t
c=t
d=f
e=f
this should be correct. :)
Answer:
B, C
Step-by-step explanation:
A.) When you multiply 32.4 x 103, the decimal moves 3 places to the right.
[tex]32.4 \cdot 103 = 3337.2[/tex]
No, it is 2 places to the right.
B.) When you divide 32.4 by 102, the decimal moves two places to the left.
[tex]$\frac{32.4}{102} \approx 0.32$[/tex]
Yes. If we consider 32.4 and 0.32.
[tex]32.4 = 0.324 \cdot 10^2[/tex]
We obtain 0.32 by moving the number 32 decimal two places to the left
C.) When you multiply 0.32 x 102, the decimal moves 2 places to the right.
[tex]0.32 \cdot 102 = 32.64[/tex]
Yes
D.) When you multiply 3.24 by 102, the answer is 3,240.
[tex]3.24 \cdot 102 = 330.48[/tex]
No
E.) When you divide 324 by 102, the answer is 3.24.
[tex]$\frac{324}{102} = 3.176...$[/tex]
No
I need help with this im not sure how to do it
Answer:
a) 3^2 x 3^5 = 3^7
b) 7^8 divided by 7^2=7^6
c) (q^4)^3 =q^12
Step-by-step explanation:
A certain school has 120 teachers. If this constitutes 30% of its workforce, find the number of employees in the school.
Answer:
400 employees
Step-by-step explanation:
Let the total no. of employees be x
From the information we get that,
30% of x= 120
Hence, 30/100x=120
x=120×100/30
x=400
25__-25
> < = which one ??
Hey there!☺
[tex]Answer:\boxed{>}[/tex]
[tex]Explanation:[/tex]
We already know that a positive is greater than a negative. A negative is below positive. The positive we have is 25 and the negative we have is -25. 25 is greater because it is a positive.
[tex]>[/tex] is your answer.
Hope this helps!
[tex]\text{-TestedHyperr}[/tex]
Emily uses 3/4 of a gallon to paint a wall in her house. How many quarts of paint will she use to 10 walls? (1 gallon = 4 quarts)
I'm pretty sure its 30quarts.
Step-by-step explanation: if you find out how many quarts are in 3/4 gallon and multiply that bye 10 then you get your answer.
A class of 25 students includes 12 boys. Does the ratio of
girls to students represent a fraction? Does the ratio of
boys to girls represent a fraction? How do you know?
Answer:
Number of boys in the class is (2/2+3)*25=(2/5)*25=10
Step-by-step explanation:
The ratio of girls to students represents a fraction because it is a part-to-whole comparison. The ratio of boys to girls is not a fraction because it is a part-to-part comparison.
ep explanation:
30 Points
What can be used as a reason in a two-column proof?
Select each correct answer. [Multiple Choice]
A. a given
B. a conjecture
C. a property of algebra
D. a counterexample
Answer:
C. a property of algebra
Step-by-step explanation:
I hope this helps
Someone pls help I don’t understand!!
Answer:
Add a three more zeros at the end
Step-by-step explanation: 34.624*1000=34,624
This is scientific notation. . .
In other words, you would move the decimal point of the term being mutliplied by 10^3 to the right three times.
34.624 x 10^3 would now become 34,624.PLEASE HELP ME!!! HELP HELP HELP HURRY HURRY
The table below shows the fourth powers of different numbers:
Number (x)
1 ,-1 ,3,-3
Fourth power of the number (y) 1,1,81,81
Part A: Does the table represent y as a function of x? Justify your answer. (5 points)
Part B: The total cost f(x), in dollars, for renting a townhouse for x months is shown below:
f(x) = 875x + 750
What is the value of f(12) and what does f(12) represent? (5 points)
Answer:
Part A: yes it is a function because every input value (x) produces only one output value (y).
Note: It is still a function if different x values produce the same y value, in this case, x=1 and x=-1 produce the same y value 1, but it is NOT a function if y=1 and y=-1 have the same x value x=1.
Part B: when x=30: f(30)=17*30+50=560
if means that the cost of renting the truck for 30 hours is 560 dollars.
this help?
What is the output when the input is 5?
Answer:
d. 75
Step-by-step explanation:
5^2=25
25x3=75
Answer:
the output would be 75.
Step-by-step explanation:
f(x) = 5
f(5) = 3(5)^2
f(5) = 25 • 3
f(5) = 75
Who do u do 3 divided by 4 1/2
Answer:
1 1/5
Step-by-step explanation:
by doing the recipeical 3/1 * 2/5
What are the coordinates of the image of vertex D after a reflection across the x-axis? (5, 3) (–5, –3) (–3, 5) (3, –5)
The coordinates of the image of vertex D after a reflection across the x-axis will be (5, 3). Then the correct option is A.
What is a transformation of geometry?A spatial transformation is each mapping of feature shapes to itself, and it maintains some spatial correlation between figures.
Reflection does not change the size and shape of the geometry. But flip the image.
The triangle ΔDEF is given below.
If the triangle ΔDEF is reflected across the x-axis, then the triangle will be named as ΔD'E'F'.
The vertex of the triangle D will be reflected into the first quadrant.
Then the coordinate of the vertex D' will be (5, 3).
The coordinates of the image of vertex D after a reflection across the x-axis will be (5, 3).
Then the correct option is A.
The graph is given below.
More about the transformation of geometry link is given below.
https://brainly.com/question/22532832
#SPJ6
Answer:
A) (5, 3)
Step-by-step explanation:
–9 − 9m = –10m
What does m equal?
Answer: 2
Step-by-step explanation:
Answer:m=1
Step-by-step explanation:9*1
A block of wood has the mass of 180 grams. It is 10cm long, 6cm wide and
4cm thick. What is its
How to solve (x-10)(x + 10)
Answer:
Multiplying/simplifying, it is x^2-100(found by the FOIL method)
Step-by-step explanation:
multiply the commons factors x times x is x squared
-10 times 10 is -100. Negative times positive is negative.
How many zero pairs must be added to the function f(x) = x2 – 10x – 4 in order to begin writing the function in vertex form? 04 010 21 25
Answer:
Step-by-step explanation:
f(x) = x^2 – 10x – 4 can be put into "perfect square" form by calculating (-10/2)^5, or 25, and then adding and then subtracting 25 from x^2 - 10x - 4:
f(x) = x^2 – 10x – 4 becomes
f(x) = x^2 – 10x + 25 - 25 - 4, or
f(x) = (x - 5)^2 - 29
Comparing this to "vertex form," g(x) = (x - h)^2 + k,
we see that h = 5, k = -29, and so the vertex is at (h, k): (5, -29)
We need to add one zero pair (+25 - 25) here.
Answer:
The answer is 25.
Step-by-step explanation:
So it is D
In the San Gabriel Mountains in California, lookout station Running Deer is 18 kilometers due west of station Lazy Bear. The bearing from Running Deer to a fire directly south of Lazy Bear is S38.4°E. To the nearest tenth of a kilometer, how far is the fire from Running Deer?
Answer:
29.0 kilometers
Step-by-step explanation:
From the figure attached,
Lookout station Running Deer is at A, Station Lazy Bear is at B and Fire is at C.
Bearing from Running deer to Fire is S38.4°E.
Therefore, m∠SAC = m∠ACB = 38.4°
Distance between the stations Running Deer and Lazy Beer = 18 km
From the given triangle ABC,
Sin(C) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex] = [tex]\frac{\text{AB}}{\text{AC}}[/tex]
Sin(38.4)° = [tex]\frac{18}{y}[/tex]
y = [tex]\frac{18}{\text{Sin}38.4}[/tex]
y = 28.978 ≈ 29.0 km
Therefore, distance between Fire and Running deer is 29 kilometers.
PLEASE HELP ASAP !!!!!!!!!!!!!!!!!!!!!
Answer:
343.97
Step-by-step explanation:
The first one is 343.97. You times 324.5 with 6% also known as 0.006 which is 19.47.
Add 19.47 to 324.5 and you get 343.97
Which of the following expressions is equal to -3x2 – 27?
A. (-3x - 3)(x-91)
B. (-3x +91)(x +31)
C. (-3x+3)(x +91)
D. (-3x - 91)(x +31)
Answer: (-3x+9)(x+3i)
Step-by-step explanation:
It’s right
Can sum1 help me plzz :) ill give brainlist
Answer:
34 hours
Step-by-step explanation:
358-35=323
323/9.50= 34
Mr. Mustard said: "If you add the ages of my
two daughters, plus my age, the sum ls 70.
Mr. Mustard's daughters are 15 and 11 years
old. How old is Mr. Mustard?
Answer:
Mr. Mustard is 44 years old
Step-by-step explanation:
70 - (11+15) = 44
44 + (11+15) = 70
Una compañía de danza de 156 bailarines hace una coreografía formando filas y columnas.Si en una fila hay 20 bailarines más que en una columna ¿cuántas filas y cuantas columnas son?
Responder:
Por favor, consulte la explicación.
Explicación paso a paso:
Dado lo siguiente:
Número de bailarines = 156
Sea número de bailarines en una columna = c
Número de bailarines seguidos = c + 20
Multiplicar el número de bailarines en fila y columna dará el número total de bailarines.
Por lo tanto,
c * (c + 20) = 156
c² + 20c = 156
c² + 20c - 156 = 0
c² + 26c - 6c - 156 = 0
c (c + 26) - 6 (c + 26) = 0
(c + 26) = 0 o (c - 6) = 0
c = - 26 o c = 6
C no puede ser negativo
Por lo tanto,
Número de bailarines en columna = 6
Número de bailarines en fila = 20 + 6 = 26
Bernie already has 13 plants in his backyard, and he can also grow 13 plants with every
seed packet he uses. How many seed packets does Bernie need to have a total of 65 plants
in his backyard?
seed packets
Answer:
5 seed packets
Step-by-step explanation:
65 divided by 13 is 5
