Answer:
R(x, y) = (x, -y)
Step-by-step explanation:
When we have a reflection across some line, the distance between the original point and the reflected point to the line is invariant.
For a reflection around the x-axis, the x-value is invariant, then the only value that can change is the y-value.
So if we have a point like (4, 7)
Which is at a distance of 7 units to the x-axis, the only other point that is also at a distance of 7 units to the x-axis that has the same x-value is (4, -7)
Here we already can see the rule.
If we have a point (x, y), the reflection across the x-axis gives us the point (x. -y)
Then we can write this reflection as a function in the next way:
R(x, y) = (x, -y)
This means that if the input is the point (x, y), the output is the point (x, -y)
9/2 - 23/9=? plss help
Answer:
35/ 18
(Decimal: 1.944444)
Step-by-step explanation:
Answer
Step-by-step explanation:35/18
Find the value of unknown anlges from the figure.
the answer is 5286 i think hope this helps
Answer:
We can’t see the question
Step-by-step explanation:
we need a question to solve for the question
Find the median of this data set: 4, 9, 1, 3, 7, 1
The median is 3.5
Hope this helped
(*^▽^*)
calculate the volume of the prism by first finding the total number of half unit cubes that will fill it.There are 8 half unit cubes in every unit cube pls help guys this is my exam
Answer:
I think its C
Step-by-step explanation:
What is the equation of the trend line in the scatter plot?
Use the two yellow points to write the equation in slope-intercept form. Write any coefficients as integers, proper fractions, or improper fractions in simplest form.
Answer:
y = 7/5x - 21/5
Step-by-step explanation:
points to use to find slope: (3,0) and (8,7)
slope = 7-0 / 8-3
slope = 7/5
find y-intercept (or 'b')
0 = 3(7/5) + b
0 = 21/5 + b
-21/5 = b
b = -4 1/5
Find the measure of arc DB in OP.
mDB=
Answer:
90
Step-by-step explanation:
First of all you have to know that when 2 lines are perpendicular to each other,they produce a 90° angle, therefore DP||TD. Then you should remember that the measure of an arc is the same as the measure of the angle. So angle DB is 90°.
what is the average value of 3+9=12
Answer:
the mean (average) is 6 bc you divide the answer by the amount of numbers
Step-by-step explanation:
simplify 3/x-1 + 1/x-2
Answer:
4-3x over x or 4-3x/x
I'm not sure. but I hope it can help you:))
Al cine paraíso fueron el sábado 1.350 espectadores y el domingo 1.120 cuánto se recaudo si cada entrada costaba 540?
Answer:
1,333,800
Step-by-step explanation:
Spectators on Saturday = 1,350
Spectators on Sunday = 1,120
Total spectators = 1,350 + 1,120 = 2,470
Price per ticket = 540
So, we can calculate the total amount collected by using following formula,
Total amount collected = Total spectators × Price per ticket
By putting value, we get
= 2,470 × 540
= 1,333,800
Marcus is rolling a number cube with sides labelled 1 to 6 .find the probability it will show 10
Answer:
Probability of getting number 10 = 0
Step-by-step explanation:
Given;
Total sides of cube die = 6
Find:
Probability of getting number 10
Computation:
Total number of cube = 1, 2, 3, 4, 5, 6
Favorable outcome for 10 = 0
Probability of an event = Favorable outcome / Number of outcomes
Probability of getting number 10 = 0 / 6
Probability of getting number 10 = 0
HELP ME PLEASE ILL BRAINLIEST YOU IF YOU GET IT RIGHT
which lines, if any, are parallel in the diagram below?
Your classmate showed their thought process to the problem below. However, They made a mistake. What mistake did they make? Describe it below
Answer:
It's not 5x + 100 = 180,
it's 5x = 180 because they are vertical angles.
x = 36
CAN SOMEONE PLEASE HELP ME!!!
!!!
What is the gravitational potential energy of a 2.5 kg object that is 300 m above the surface of the earth
Answer:
7350 JStep-by-step explanation:
The gravitational potential energy of a body can be found by using the formula
GPE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
We have
GPE = 2.5 × 9.8 × 300
We have the final answer as
7350 JHope this helps you
Which statement identifies how to show that j(x) = 11.6ex and k(x) = In (StartFraction x Over 11.6 EndFraction) are inverse functions?
Answer:
The answer is "It must be shown that both [tex]j(k(x))\ and \ k(j(x))=x[/tex]"
Step-by-step explanation:
Given:
[tex]j(x) = 11.6 e^{x} \\\\k(x) =\ln\frac{x}{11.6}[/tex]
To show that both are equal functions, and show that both[tex]j(k(x))\ and\ k(j(x)) =x,[/tex]
For [tex]j(k(x));[/tex]
[tex]j(k(x)) = j[(\ln \frac{x}{11.6})]\\\\j[(\ln (\frac{x}{11.6})] = 11.6e^{\ln (\frac{x}{11.6})}\\\\j[(\ln \frac{x}{11.6})] = 11.6(\frac{x}{11.6})\\\\[/tex](The natural logarithm is canceled by exponential function)
[tex]j[(\ln \frac{x}{11.6})] = 11.6 \times\frac{x}{11.6}\\\\j[(\ln \frac{x}{11.6})] = x\\\\j[k(x)] = x\\\\for\ \ k[j(x)]:\\\\k[j(x)] = k[11.6e^x]\\\\k[11.6e^x] = \ln (\frac{11.6e^x}{11.6})\\\\k[11.6e^x] = \ln(e^x)[/tex]
Its natural logarithm leaving x will nullify expanding universe.
[tex]k[11.6e^x] = x\\\\k[j(x)] = x[/tex]
In the question, it is seen that[tex]j[k(x)] = k[j(x)] = x[/tex], shows that the functions [tex]j(x) = 11.6 e^{x} \ and \ k(x) = \ln \frac{x}{11.6}[/tex] is inverse functions.
Answer:
C
Step-by-step explanation:
Ed2021
Answer these questions but show your work for them!
1. 5+4(3)
2. 2-(3+ -4)
3. 24/6 -2^3 +2(-3)
4. 3+2(5^2-5 x 4)
5. 3+2(5^2 - 5 x 4)
mark as brainliest
Please help solve ASAP!! <3
Answer: The answer is 280 ft.
Step-by-step explanation:
divide the green area into a triangle and a rectangle so it's easier to calculate. Then find the area of the rectangle by multiplying 14 times 16. That should get you 224. Then, find the area of the tringle by multiplying 14 times 18, times 1/2. That will get you 56. If you add 56 to 224, that gets you 280.
I have to factor polynomials by grouping
The question is: 6f^3 - 8f^2 + 20 - 15f
The answer is supposed to be; (2f^2 - 5)(3f - 4)
Pls show your work
Answer:
Step-by-step explanation:
Factor 6f3−8f2+20−15f
6f^3−8f^3−15f
=(3f−4)(2f2−5)
Answer:
(3f−4)(2f^2−5)
Find the group you want to factor, such as in the first parenthesis, you remove 3f from the whole equation, and end up with 3f-4. You take the end value, and group it with -5. You will then end up with 2f^2 -5.
Hope this Helps!
If ax – b = 0 and a #0, then x =
Answer:
x = [tex]\frac{b}{a}[/tex]
Step-by-step explanation:
Given
ax - b = 0 ( add b to both sides )
ax = b ( divide both sides by a )
x = [tex]\frac{b}{a}[/tex]
Figure ABCD is a kite. Find the value of x.
BC = 2x - 5
DC = x+3
Here's the solution,
the given figure is a kite,
So, BC = DC
=》
[tex]2x - 5 = x + 3[/tex]
=》
[tex]2x - x = 3 + 5[/tex]
=》
[tex]x = 8[/tex]
value of x = 8
Triangle ABC with vertices A(-3, 4), B(0, 2),
and C(-2, 1) is translated 4 units right and 5
units down. Which quadrant is the image?
A(-3, -1)
B(0, -7)
C(-2, -4)
Therefore, the image is in the III quadrant (bottom left).
In a random sample of 800 seniors at Mill Creek High School, 100 students are asked if they prefer graduation at the High School or at the Gwinnett Infinite Energy Arena, Eighty-four students preferred to have graduation in the Mill Creek stadium. How many seniors prefer to have the Graduation Ceremony at Mill Creek?
504
608
672
706
Answer:
Step-by-step explanation:
84%
800*.84 = 672 students prefer the stadium
Arjun's family is traveling in a car at a constant speed of `65` miles per hour. How far do they travel in `25` minutes?
Answer:
can you say me which chapter question is this
Answer:
Step-by-step explanation:
1. it takes 3.1 hours
2.27.08 miles is how far they travel in 25 minutes
please give me a brainliest, i worked pretty hard to find these out, if you need a explanation, i will add it
2.
2.
Which of the following functions would give the population Plt) as a function
of t, in years, given that the initial population is 2,500 and that the population
is growing at an annual rate of 4%?
(1) P(t)=2500(0.96)
(3) P(t)=2,500(1.04)
(2) P(t)=(1.04) +2,500
(4) P(t)= 1.04t +2,500
Answer:
[tex]P(t)=2500(1.04)^t[/tex]
Step-by-step explanation:
None of your proposed answers has an exponent t.
Here's the logic behind the answer:
Year 0: pop. = 2500
Year 1: pop. = 2500(1.04) That is 104% of the previous year's pop.
Year 2: pop. = 2500(1.04)(1.04) = 2500(1.04)^2
Year 3: pop. = 2500(1.04)^2 x (1.04) = 2500(1.04)^3
See the pattern? The exponent matches the year number.
The population density of a city is 1,148 persons per square mile.
If 40,173 people live in the city, what is the approximate land area of the city?
А.
6 square miles
B.
35 square miles
C.
70 square miles
D.
1,225 square miles
Answer:
B. 35 Square Miles
Step-by-step explanation:
To determine a student’s overall test score for the semester, Ms. Lopez throws out the lowest test score and takes the average of the remaining test scores. Victor earned the following test scores in Ms. Lopez’s class this semester: 62, 78, 83, 84, and 93. What overall test score did Victor earn in Ms. Lopez’s class this semester?
67.6
67.6
80.0
80.0
83.0
83.0
83.5
83.5
84.5
Answer:
80%
Step-by-step explanation:
I'm assuming you want the average of the class.
62 + 78 + 83 + 84 + 93
= 400
400/5
= 80
Therefore Victor's overall test score is 80%
Jordan sold his used lawn tractor and accessories for $980. If he received nine times as much money for the lawn tractor as he did for the accessories, find how much money he received for the lawn tractor
Answer: [tex]\$882[/tex]
Step-by-step explanation:
Given
Jordan sold lawn tractor and accessories for [tex]\$980[/tex]
he receives 9 times more money for a tractor than for accessories
Suppose, he receives x amount for accessories
So, for tractor it is [tex]9x[/tex]
total amount is
[tex]\Rightarrow 9x+x=980\\\Rightarrow 10x=980\\\Rightarrow x=\$98[/tex]
He receives [tex]9x=\$882[/tex] for tractor
Can someone pls help me find the correct answers pls and thank you!
Answer:
IJ
Step-by-step explanation:
BH and AG = 1/2 diameter of the circle therefore are radii
IJ is not 1/2 the diameter of the circle so it's not a radius.
what is equivalent (2 - 6) cubed
Answer:
solution given:
equivalent (2 - 6) cubed=(-4)³=-64