If a point (-1, 4) reflected over the x-axis then translate the result up 3 units then the coordinates of the final point are (-1, -1)
What is Coordinate Geometry?A coordinate geometry is a branch of geometry where the position of the points on the plane is defined with the help of an ordered pair of numbers also known as coordinates.
Reflecting a point over the x-axis negates the y-coordinate, while leaving the x-coordinate unchanged.
Therefore, reflecting (-1,4) over the x-axis gives us the point (-1,-4).
Translating a point up 3 units means adding 3 to the y-coordinate. Therefore, translating (-1,-4) up 3 units gives us the point:
(-1, -4 + 3) = (-1, -1)
So the final point is (-1,-1).
Hence, if a point (-1, 4) reflected over the x-axis then translate the result up 3 units then the coordinates of the final point are (-1, -1)
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Please help! It’s 3am for me and I need to get this done.
Which of the following increases at the fastest rate for larger values of x?
Answer:
8^x +3
Step-by-step explanation:
Always take index for fasting growth rate
The probability that a light bulb will have failed after 1000 hours of use is
0.07.
What is the probability that it will still be working after 1000 hours of use?
Give your answer as a decimal.
Answer:
.093
Step-by-step explanation:
do
1.00-0.07
the probability that the light bulb will still be working after 1000 hours of use is 0.93 (or 93%).
To find the probability that the light bulb will still be working after 1000 hours of use, we can use the fact that the sum of the probabilities of all possible outcomes must be equal to 1.
Given that the probability of the light bulb failing after 1000 hours of use is 0.07, the probability of it still working after 1000 hours is:
Probability of the light bulb working after 1000 hours = 1 - Probability of the light bulb failing after 1000 hours
Probability of the light bulb working after 1000 hours = 1 - 0.07
Probability of the light bulb working after 1000 hours = 0.93
So, the probability that the light bulb will still be working after 1000 hours of use is 0.93 (or 93%).
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Help me please im like so desperate rn
What is the simplest form of x^2+5X-36/x^2-16
X+9/X+4
9/4
X+9/X-4
-9/4
Answer:
[tex] \frac{ {x} + 9}{x - 4} [/tex]
Step-by-step explanation:
[tex] \frac{ {x}^{2} + 5x - 36}{ {x}^{2} - 16} \\ \\ = \frac{ {x}^{2} + 9x - 4x- 36}{ {x}^{2} - {(4)}^{2} } \\ \\ = \frac{ x({x} + 9) - 4(x + 9)}{ (x + 4)(x - 4) } \\ \\ = \frac{ ({x} + 9) \cancel{(x - 4)}}{ \cancel{(x + 4)}(x - 4) } \\ \\ = \frac{ {x} + 9}{x - 4} [/tex]
The table shows numbers of words typed by 3 students in 1 minute.
student | number of words
Molly | 34
Joseph |. 37
diana. |. 32
Based on data, select the estimate that could represent the number of words typed by the students in 7 minutes
A. 102 by Molly, 111 by joseph, 96 by diana
B. 214 molly, 226 joseph, 262 diana
C. 235 Molly, 259 joseph, 224 diana
D. 258 molly 223 joseph 237 diana
molly 258 joseph 259 Diana 262
Step-by-step explanation: oh and this reminds me of Dora
beans rice Jesus christ and Biran
Question
Find the whole
140% of what number is 35?
The 140% of the number 25 will be equal to 35. We will calculate it by the concept of percentage.
What is the percentage?The Percentage is defined as representing any number with respect to the 100. It is denoted by the sign %.
Here we need to find out 140% of what number is 35
Suppose that number is x so the equation will be
[tex]140\%\times x=35\\\\\\\dfrac{140}{100}\times x=35\\\\\\x=\dfrac{35\times 100}{140}\\\\\\x=25[/tex]
Hence % of the number 25 will be equal to 35. We will calculate it by the concept of percentage.
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can someone please help me answer this question??? help me please due in 15 min!!!
Answer:
c. 69
Step-by-step explanation:
In the arthmetic sequence {-9, -4, 1, 6, 11,…}, what is the common difference ?
Explanation:
Pick any term and subtract off the previous one to get the common difference.
For instance, let's say we picked 11
11-6 = 5
Or we could pick 6
6-1 = 5
Each time we get 5 as the common difference. It says that to get each next term, we add on 5.
A jiffy is a measure of time. There are 100 jiffies in 1 second. How many seconds are there in 60 jiffies?
Answer:
.6
Step-by-step explanation:
60/100 = .6
60 jiffies is 60% of 1 second
Answer:
0.6 seconds in 60 jiffies.
Step-by-step explanation:
If there are one hundred jiffies in a second, then all we need to do is multiply one second by 0.60, since one jiffy is one 100th of a second. And well, since one times anything is that number, well, our answer is 0.6
please help me solve it.
[tex]\dfrac{n^6}{(n^2)^5}\\\\\\=\dfrac{n^6}{n^{2 \times 5}}\\\\\\=\dfrac{n^6}{n^{10}}\\\\\\=n^{6-10}\\\\\\=n^{-4}[/tex]
It’s 4 this is so people can find it easier
A figure can be broken into a rectangle and triangle. The rectangle has a base of 10 inches and height of 7 inches. The triangle has a baes of 4 inches and height of 5 inches.
What is the measure of the base of the triangle?
The base of the triangle b has a measure of inches.
Answer:
4 inches
Step-by-step explanation:
finding base of rectangle
area- 10x7= 70
base- 70/10= 7
finding base of triangle:
area- 4x5= 25
base- 25/5= 4
Answer:
4 in
Step-by-step explanation:
4
The ratio of red sweets to sweets that are not red is 2:3
The ratio of green sweets to sweets that are not green is 6:19
Work out the ratio of red sweets to blue sweets to green sweets
I saw an answer but assuming that the total is 50 doesn't make any sense.
I also saw an answer that didn't put any method/calculations. I NEED to put the method there otherwise my teacher will think I cheated and I will not be able answer questions like this in the future.
Answer:
Extremely sorry if my answer is wrong or doesn't make sense! Also sorry that I couldn't solve it farther, I solved it using sense and haven't made it this far in math!
Step-by-step explanation:
If red is 2:3 then that means red to green is either 2:2 or 2:1. Same goes with blue.
If green is 6:19 then we can figure out the 2 possibilities for red to green.
First Possibility:
If the red to green ratio is 2:2, then the red to green to blue is 6:6:13 because 6 + 19 - 12 = 13.
Second Possibility:
If the red to green ratio is 2:3, then the red to green to blue ratio is 4:6:15 because 6 + 19 - 10 = 15.
Find the area of a regular hexagon with a said length of 10 centimeters and a apothem of 5 spuare root 3
Answer:
C
Step-by-step explanation:
the area (A) of the hexagon can be calculated as
A = [tex]\frac{1}{2}[/tex] pa ( p is the perimeter and a the apothem )
p = 6 × 10 = 60 and a = 5[tex]\sqrt{3}[/tex] , then
A = [tex]\frac{1}{2}[/tex] × 60 × 5[tex]\sqrt{3}[/tex]
= 30 × 5[tex]\sqrt{3}[/tex]
= 150[tex]\sqrt{3}[/tex]
≈ 259.8 cm² ( to the nearest tenth )
Math question please help
FALSE
The distributive property comes in handy when we see an expression such as the following: 5(x + 3). This is because the 5 needs to be distributed to both the x and the 3.
For the given expression, combining like terms would be the next step because 2y and 6y can be added together.
Hope this helps!
A ladder leans against the side of a house. The angle of elevation of the ladder is 62˚ when the bottom of the ladder is 16ft from the side of the house. Find the length of the ladder. Round your answer to the nearest tenth.
Answer:
The length of the ladder is about 34.1 feet.
Step-by-step explanation:
cos(62°) = 16/h
h cos(62°) = 16
h = 16/cos(62°) = 34.1 feet
A square piece of confetti has sides that are 20 millimeters long. What is the piece of confetti’s area
Square has 4 sides
20 mill for each side
we mutiply all four corners
=80 mill
Help plssssss
(look at bottom for image
The two dot plots below compare the forearm lengths of two groups of schoolchildren:
Two dot plots are shown one below the other. The title for the top dot plot is Forearm Length, Group A and the title for the bottom plot is Forearm Length, Group B. Below the line for each dot plot is written Length followed by inches in parentheses. There are markings from 9 to 12 on each line at intervals of one. For the top line there are 3 dots above the first mark, 5 dots above the second mark, and 2 dots above the third mark. For the bottom line there are 3 dots above the second mark, 4 dots above the third mark and 3 dots above the fourth mark.
Based on visual inspection of the dot plots, which group appears to have the longer average forearm length?
Group A, because three children in the group have the least forearm length of 9 inches
Group B, because three children in the group have the least forearm length of 9 inches
Group A, because two children have a forearm length longer than 10 inches
Group B, because seven children have a forearm length longer than 10 inches
Answer:
Option 4
Step-by-step explanation:
Group B, because seven children have a forearm length longer than 10 inches.
Additional verification :
Finding average forearm length of Group A :
9(3) + 10(5) + 11(2) / 1027 + 50 + 22 / 1099/109.9Finding average forearm length of Group B :
10(3) + 11(4) + 12(3) / 1030 + 44 + 36 / 10100/1010Group B clearly has the longer forearm length.
A teacher wants to know if burning a scented candle affects students’ performance on pop quizzes. In the experiment, there will be a treatment group and a control group each taking their quizzes in a room that either does or does not have a scented candle burning.
Why is randomization important when setting up an experiment to answer this research question?
to ensure that both groups have a nice mix of students
to ensure that the two groups have the same number of students
to ensure that both groups are roughly equivalent regarding students’ preparedness, anxiety levels, and study skills
to ensure that the rooms for both groups are approximately the same regarding time of day, temperature, sound control, and lighting
Randomization is important to ensure that both groups are roughly equivalent regarding students’ preparedness, anxiety levels, and study skills.
What is randomization in an experiment?Randomization is when subjects in an experiment are placed in either the control group or the treatment group without any structure. They are placed in either groups randomly. The purpose of randomization is to ensure that subjects in either group are homogenous.
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50 points!! help asap pls
Write the equation of a circle with a radius of length 10 and a center at (-4, -9).
Answer choices in attached image
Answer:
(x+4)² + (y+9)² = 100
Step-by-step explanation:
We want to find the equation of a circle with a radius of length 10 and a center at (-4, -9).
general equation of circle : (x-h)² + (y-k)² = r²
where (h,k) is at center and r = radius
the center is at (-4,-9) so h = -4 and k = -9 and the circle has a radius of 10 so r = 10
so we have (x-h)² + (y-k)² = r²
h = -4 , k = -9 and r = 10
(x-(-4))² + (y-(-9))² = 10²
==> apply double negative sign rule and remove parenthesis for -(-4) and -(-9)
(x+4)² + (y+9)² = 10²
==> simplify exponent
(x+4)² + (y+9)² = 100
and we are done!
Answer:
Option D
Step-by-step explanation:
Given:
Radius = 10 unitsCenter point = (h, k) = (-4, -9)∴ x coordinate of center point: (h, k) ⇒ (-4, -9)
∴ y coordinate of center point: (h, k) ⇒ (-4, -9)
Equation of circle formula:
⇒ (x - h)² + (y - k)² = r²Substitute the radius in the formula;
⇒ (x - h)² + (y - k)² = r²⇒ (x - h)² + (y - k)² = (10)²Substitute the x and y coordinate in the formula;
⇒ [x - (-4)]² + [y - (-9)]² = (10)² [x coordinate (h): -4; y coordinate (k): -9]⇒ [x + 4]² + [y + 9]² = 100 (Option D)Therefore, Option D is correct.
Can you help me solve this pls!
Answer:
Here is the ans ...hope it helps:)
What is the missing measurement of this right triangle?
5 m (Opposite Side)
9 m (Hypotenuse)
x (Adjacent Side)
The missing measurement of this right triangle is x=2√14
Can someone please answer this, ill give you brainliest Would be very appreciated.
Equation:
j(x) = -3x² - 5
Which part of the equation tell us that the graph opens downward?
Solution:Here see that the leading coefficient of x² which is (-3) is less than 0, meaning negative. a < 0 Hence, the graph will open from downwards.
Answer:
The coefficient of x²
Step-by-step explanation:
The part of the function j(x) which shows the graph opens downward is the coefficient of x². Depending on whether the value is positive or negative, we will understand if it opens upward or downward.
Having trouble with this. Find the measure of the following arcs or angles.
The missing angle ∠APB, angle ∠CPD, and angle ∠EPA will be 65°, 77°, and 77° respectively.
What is an angle?The angle is the distance between the intersecting lines or surfaces. The angle is also expressed in degrees. The angle is 360 degrees for one complete spin.
Linear angle - If the total of two angles is 180 degrees, they are said to be linear angles.
The diagram is given below.
The angle ∠BPC is 38° and the angle ∠DPE is 103°.
Then the missing angle will be
Angle ∠CPD and angle ∠DPE are linear angles. Then we have
∠CPD + ∠DPE = 180°
∠CPD + 103° = 180°
∠CPD = 77°
Similarly, angle ∠APB, angle ∠BPC, and angle ∠CPD are linear angles. Then we have
∠APB + ∠BPC + ∠CPD = 180°
∠APB + 38° + 77° = 180°
∠APB = 65°
Then the complete circle makes 360°. Then we have
∠APB = 360° - 65° - 38° - 77° - 103°
∠APB = 77°
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Determine the value of c such that f(x,y) = c(x 2y), x = 1, 2
The value of C is 0.03030 if the f(x, y) = c(x 2y), x = 1, 2 and y =1, 2, 3 because the sum of the probability is always 1
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
We have:
f(x, y) = c(x+2y),
x = 1, 2 and y =1, 2, 3
f(1, 1) = C(1 + 2) = 3C
f(1, 2) = C(1 + 4) = 5C
f(1, 3) = C(1 + 6) = 7C
f(2, 1) = C(2 + 2) = 4C
f(2, 2) = C(2+ 4) = 6C
f(2, 3) = C(2 + 6) = 8C
We know the sum of the all probability is 1
3C+5C+7C+4C+6C+8C=1
33C =1
C = 0.03030
Thus, the value of C is 0.03030 if the f(x, y) = c(x 2y), x = 1, 2 and y =1, 2, 3 because the sum of the probability is always 1
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how do you do this question
Step-by-step explanation:
Given,
[tex]x = {3}^{m} [/tex]
[tex]y = {3}^{n} [/tex]
Now
Consider
[tex] {3}^{4m - 1} [/tex]
We know that
[tex] \frac{ {a}^{p} }{ {a}^{q} } = {a}^{p- q} [/tex]
Using this we can write
[tex] {3}^{4m - 1} = \frac{ {3}^{4m} }{ {3}^{1} } [/tex]
[tex] = \frac{ {3}^{4m} }{3} [/tex]
We know that
[tex] ({a}^{p}) ^{q} = {a}^{pq} [/tex]
Using this we get
[tex] \frac{ {3}^{4m} }{3} = \frac{ ({3}^{m})^{4} }{3} [/tex]
Since we know that
[tex] {3}^{m} =x [/tex]
We get
[tex]= \frac{ {x}^{4} }{3} [/tex]
no links, will be reported
Answer:
(1,0)
Step-by-step explanation:
This is because a system of equations is when two lines cross to form a point that they share. (1,0) is the point where the two lines cross/intersect.
Answer:
(1,0)
Step-by-step explanation:
The answer is where the ines intersect to form a point.
The function f(w)=10+13w represents the amount of money in a child's bank account w weeks after the child started saving their allowance. What does the value 10 represent in this situation?
Answer: The value 10 represents the child's initial value before the weeks started.
Step-by-step explanation: The equation is f(w) = mx + b, where b is the inital value. 10 is the b value.
60=-5(x-6)
Please answer this with how you got the answer.
Answer:
x = -6
Step-by-step explanation:
» Solution
Step 1: Distribute -5 to the terms inside the parantheses.
[tex](-5)(x)+(-5)(-6)=60[/tex] [tex]-5x+30=60[/tex]Step 2: Subtract 30 from both sides.
[tex]-5x+30-30=60-30[/tex] [tex]-5x=30[/tex]Step 3: Divide both sides by -5.
[tex]-5x/-5=30/-5[/tex] [tex]x=-6[/tex]Therefore, x = -6.
Given: a→ = (5,-4) and b→ = (2,3) Find 3a→ - b→
A. (3,- 7)
B. (13,- 15)
C. (13,- 1)
D. (15, 4)
[tex]< 5,-4 > - < 2,3 > \implies < 5-2~~,~~-4-3 > \implies < 3~~,~~-7 >[/tex]
a company is considering designing a new and better can opener. the company estimates the probability that the new can opener will be will be successful is 5/8. if it is successful, it would be able to make $200,000. of course, the company would make nothing if it were unsuccessful. the development costs for the can opener are $76,000 what is the expected value ?
a) $49,000
b)$75,000
c)-49,000
d)$125,000
Answer:
The answer is a.) $49,000
Step-by-step explanation:
i just took the test!!
Given that the company estimates the probability that the new can opener will be will be successful is 5/8. If it is successful, it would be able to make $200,000. The company would make nothing if it were unsuccessful. The development costs for the can opener are $76,000. The expected value is $49000.
What is expected value?Expected value is the return you can expect for some kind of action.
The formula for the Expected Value is: ΣX.P(X) .
The amount earned by the company if the new can opener is successful = Revenue of the company - amount invested = $200,000 - $76,000 = $124,000
Probability that the new can opener will be successful = 5/8
Amount earned/ lost if the new can opener is not successful = $0
Probability that the new can opener will not be successful = 1 – 5/8 = 3/8
Expected value = amount earned if the new can opener is successful * Probability that the new can opener will be successful + Amount earned/ lost if the new can opener is not successful * Probability that the new can opener will not be successful
= 124,000 * 5/8 + 0 * 3/8
= $49000
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