Answer:
d
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
PLEASE HELP ME ASAP!!
Answer:
36 feet
Step-by-step explanation:
i need help with geometry
Answer:
its a
Step-by-step explanation:
The sum of two numbers is 82. The larger number is eight less then five times the smaller number. What are the numbers?
Answer:
The smaller Number = 15
The larger number = 67
Step-by-step explanation:
Let
The smaller number = x
The larger number = 5x - 8
The sum = 82
(5x - 8) + x = 82
5x - 8 + x = 82
6x - 8 = 82
Add eight to both sides
6x - 8 + 8 = 82 + 8
6x = 90
Divide both sides by 6
x = 90/6
= 15
Therefore,
The smaller number = x = 15
The larger number = 5x - 8
= 5(15) - 8
= 75 - 8
= 67
Information about the proportion of a sample that agrees with a certain statement is given below. Use StatKey or other technology to estimate the standard error from a bootstrap distribution generated from the sample. Then use the standard error to give a 95% confidence interval for the proportion of the population to agree with the statement. StatKey tip: Use "CI for Single Proportion" and then "Edit Data" to enter the sample information. Click here to access StatKey. In a random sample of 400 people, 112 agree and 288 disagree. Estimate the standard error using 1000 samples. Round your answer to three decimal places.
Answer:
a) Standard Error = 0.010
b) 95% Confidence Interval = (0.0924 , 0.1316)
Step-by-step explanation:
a) The formula for Standard Error = √Sample Proportion (1 - sample proportion)/n
Standard Error = √p (1 - p)/n
We are told in the question that:
In a random sample of 400 people, 112 agree and 288 disagree. Estimate the standard error using 1000 samples
p = x/n
n = 1000 because we were told to use it instead of 400
x = number for people that agree = 112
p = 112/1000
p = 0.112
Standard Error = √p (1 - p)/n
= √0.112 (1 - 0.112)/1000
= √0.112 × 0.888/1000
= √0.099456 /1000
= √0.000099456
= 0.0099727629
Approximately to 3 decimal places = 0.010
Therefore, the standard error is 0.010
b) The Question above also asked that we solve for the 95% Confidence Interval
The formula =
p ± z × Standard Error
p = 0.112
z score for 95% confidence interval = 1.96
Standard Error = 0.010
Confidence Interval =
0.112 ± 1.96 × 0.010
= 0.112 ± 0.0196
0.112 - 0.0196
= 0.0924
0.112 + 0.0196
0.1316
Therefore, the 95% confidence interval = (0.0924 , 0.1316)
Answer:
Step-by-step explanation:
SO yeah there you go
I NEED HELP PLEASE ASAP - will give brainliest!!!!!!!
28.) A number cannot have a value equal to its square.
Is this true or false? If false, give a counterexample.
Answer:
false 1 is equal to its own square
Answer this: x=6
y=-2
-8x-4y+x
Answer:
-34
Step-by-step explanation:
first do substitution: -8 · 6 + -4 · -2 + 6
next do the multiplication: -48 + 8 + 6
add: -34
hope this helps!!!
Answer:
-34
Steps:
-8x - 4y + x
-8x + x = -7x (combine like terms)
-7x - 4y
-7(6) - 4(-2) (plug in the numbers)
-42 +8=
-34
:")
Your teacher draws a line segment on the board that connects points A and B in the coordinate plane. Using what you know about midpoints, explain how can you find the point that is 1/4 of the distance from A to B?
Answer:
The coordinates of the point, (x₂, y₂), 1/4 distance from A to B is given as follows;
[tex](x_2, \ y_2) = \left (x_1 + \dfrac{x_3 - x_1}{4}, \ y_1 + \dfrac{y_3 - y_1}{4} \right)[/tex]
Step-by-step explanation:
The steps used to find the point, P, 1/4 of the distance from A to B is as follows
Let the coordinate of the point A = (x₁, y₁) and the coordinate of the point B = (x₃, y₃)
Therefore, the coordinates of the point, P, (x₂, y₂), is given from the following relationship;
The coordinates of P 1/4 distance from A to B = (x₂, y₂) = (x₁ + (x₃ - x₁)/4, y₁ + (y₃ - y₁)/4)
Where;
x₂ = x₁ + (x₃ - x₁)/4
y₂ = y₁ + (y₃ - y₁)/4
By plugging in the values for x₁, y₁, x₃, and y₃, we can find the coordinates of the point P, 1/4 of the distance from A to B
The coordinates of P 1/4 distance from A to B = (x₂, y₂) = (x₁ + (x₃ - x₁)/4, y₁ + (y₃ - y₁)/4)
solve y/3 +1 = 7/15
Answer:
Step-by-step explanation:
y/3 + 1 = 7/15
y/3 = 7/15 - 1
y/3 = -8/15
y = -8/15 × 3
y = -8/5
hope this helps
plz mark as brainliest!!!!!!!!!
Which point best represents the following ordered pairs?
Answer:
B, A, E, D
Step-by-step explanation:
Hope this helps and can I have brainliest!
a)
А
3.6 cm
3.2 cm
B В
С
4.5 cm
10 red peppers for $5.50
Answer:1.50
Step-by-step explanation:
Answer:
Step-by-step explanation:
10 red peppers = 5.50
1 red pepper = 10 ÷ 5.50 = 1.81
Each leg of the race from part a is the same distance. Calculate the team’s average time for each leg of the race. Show your work.
Answer:
58
Step-by-step explanation:
Add all of them up and divide them by 4 because there is 4 number
mark as brainliest also done this in edgenuity.
Answer:
58
Step-by-step explanation:
To find the Average, you would add all the numbers up, then you would want to divide the numbers by the amount of numbers, in this case it would be 4
and then you will find your answer
hoped this helped! (made in 202)
in this equation -7=7s+28 what comes first -7+-7 or is it 28+28
Answer:
-7 - 28
Step-by-step explanation:
First, you do -7 - 28 and then divide the equation by 7.
SOMEONE PLSSS HELPPP
Two similar triangles are shown on the coordinate grid: A coordinate plane is shown. Triangle ABC has vertices A at negative 3 comma 2, B at negative 1 comma 0, and C at negative 2 comma negative 1. Triangle A prime B prime C prime has vertices A prime at 6 comma 4, B prime at 2 comma 0, and C prime at 4 comma negative 2. Which set of transformations has been performed on triangle ABC to form triangle A′B′C′? (4 points) a Dilation by a scale factor of 4 followed by reflection about the x-axis b Dilation by a scale factor of 2 followed by reflection about the x-axis c Dilation by a scale factor of 4 followed by reflection about the y-axis d Dilation by a scale factor of 2 followed by reflection about the y-axis
Answer:
d Dilation by a scale factor of 2 followed by reflection about the y-axis
Step-by-step explanation:
In each case, the transformation is ...
(x, y) ⇒ (-2x, 2y)
So, a dilation by a factor of 2 is involved. That is what multiplies the coordinates by 2. Reflection in the y-axis is what negates the x-coordinate.
The transformations are ...
Dilation by a scale factor of 2 followed by reflection about the y-axis
Little help please? It would be much appreciated :D
Answer:
[tex]\frac{12ac^1^4}{b^3}[/tex]
Step-by-step explanation:
[tex]\frac{(a^{2}b^{4}c)^2 (6a^3b)(2c^5)^3}{4a^6b^1^2c^3}[/tex]
[tex]\frac{(a^4b^8c^2)(6a^3b)(8c^1^5)}{4a^6b^1^2c^3}[/tex]
[tex]\frac{48a^{7}b^9c^1^7}{4a^6b^1^2c^3}[/tex]
[tex]\frac{12ac^1^4}{b^3}[/tex]
Find the average velocity (in m/s) of a cyclist that starts 200 meters North of town and is 1400 meters North of town after cycling for 20 minutes
Answer:
The average speed is 1 meter per second
Step-by-step explanation:
Here, we want to calculate average speed
Mathematically;
Average speed = Total distance/Total time
In this case, the total distance traveled = 1400-200 = 1,200 meters
Total time taken = 20 minutes
Since 60 seconds = 1 minute; 20 minutes is 20 * 60 = 1200 seconds
So average speed = 1200 meters/1200 seconds = 1 meter/second
Julie, a cafeteria manager, is making a large amount of chicken soup to serve for lunch tomorrow.
For every 2 cups of carrots she uses in the soup, she uses 3 cups of celery. If she uses 18 cups of
celery, how many cups of carrots did she use?
Answer:
12cups of carrots
Step-by-step explanation:
3 2
3 2
3 2
3 2
3 2
3 2
Hope this helps
A box contains ten cards labeled J, K, L, M, N, O, P, Q and S. One card will be randomly chosen what is the probability of choosing a letter form L to Q
Answer:
you would have a 6 out of 9 chance
53 is the sum of 17 and Han's score
17 + ham's score = 53
Han's score= 53-17
Han's score= 36
WILL GIVE BRAINLIEST. Find the linear equations written in standard form. Select all that apply.
x + y = -1
-3x = y
x + 4y = 0
y = 5x – 2
x = 3 - 0.1y
8x - 3y = 20
Answer:
x + y = -1
x + 4y = 0
8x – 3y = 20
Step-by-step explanation:
answer on edge
Answer:
x + y = -1
x + 4y = 0
8x – 3y = 20
Step-by-step explanation:
write the quadratic function in the two other forms f(x)=2(x+4)(x+2)
Step-by-step explanation:
f(x) = 2(x+4)(x+2)
= 2[x² + 6x + 8]
= 2x² + 12x + 16
Evaluate inverse functions
The table below shows some inputs and outputs of the invertible function f with domain all real numbers.
x. |-7|11|-13|6|5|-9|
f(x). 7|12|8|-7|13|5|
Find the following values:
f-1(F-1(13)) =
f-1(8) =
Part 1
Answer: -9---------------------------
Explanation:
Let's focus on evaluating [tex]f^{-1}(13)[/tex] first. We need to look at the table and locate f(x) = 13. So we're looking in the f(x) row where 13 shows up. That's in the second to last column. Right above that we have x = 5
This means f(5) = 13 and [tex]f^{-1}(13) = 5[/tex]. The inverse undoes the f(x) function. So the input x and output y values swap places. This is why we're reading the table in reverse.
We can replace all of [tex]f^{-1}(13)[/tex] with 5 to go from [tex]f^{-1}(f^{-1}(13))[/tex] to [tex]f^{-1}(5)[/tex]
Then we repeat the process of using the table. Locate 5 in the f(x) row. This is in the last column. The value above that is x = -9
So f(-9) = 5 and [tex]f^{-1}(5) = -9[/tex]
Overall, [tex]f^{-1}(f^{-1}(13)) = -9[/tex]
===============================================
Part 2
Answer: -13---------------------------
Explanation:
Same idea as before. Locate 8 in the f(x) row. The value above this is x = -13
This means f(-13) = 8 and [tex]f^{-1}(8) = -13[/tex]
The value of [tex]f^{-1}(f^{-1}(13))[/tex] is -9
The value of [tex]f^{-1}[/tex] (8) is 13
What is a function?A function is a relationship between inputs where each input is related to exactly one output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
From the table,
f(5) = 13
This can be written as,
[tex]f^{-1}[/tex] (13) = 5 _____(1)
f(-13) = 8
This can be written as,
[tex]f^{-1}[/tex] (8) = 13 ______(2)
f(-9) = 5
This can be written as,
[tex]f^{-1}[/tex] (5) = -9 _______(3)
Now,
[tex]f^{-1}(f^{-1}(13))[/tex]
= [tex]f^{-1}[/tex] (5) [ from (1) ]
= -9 [ from (3) ]
Now,
[tex]f^{-1}[/tex] (8) = 13 [ from (2) ]
Thus,
[tex]f^{-1}(f^{-1}(13))[/tex] = -9
[tex]f^{-1}[/tex] (8) = 13
Learn more about functions here:
https://brainly.com/question/28533782
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Help me please
Whats the product
Answer:
(-9)(2)= -18
Step-by-step explanation:
since there are no signs in this expression, we will multiply. always remember, a negative times a positive will always be negative. just multiply 9 and 2 and you get 18. then add a negative sign. -18
Write the sentence as an inequality.
Ten is at least the product of a number h and 5.
Answer:
5h ≥ 10
Step-by-step explanation:
5 * h ≥ 10
≥ means greater than or equal to which is recognized in the question for " atleast"
What is the estimate of 1,578
thats the estimate
What is 12*6-1????????????????????????
Answer:
71
Step-by-step explanation:
Please help me again
what is the answer to 4×3^2-3+5×2
Answer:
43
Step-by-step explanation:
[tex]4 \times {3}^{2} - 3 +5 \times 2 [/tex]
4 x 9 - 3 + 5 x 2
36 - 3 + 10
46 - 3
43
1. y varies directly as x. x = 3 when y = 12. Find y when x = 12.
Answer:
it's 36
Step-by-step explanation:
if u take 3 times 12 its 36
Write the equation of the line, in standard form, that has an x-intercept of 2 and is parallel to 2x + y = -5.
Answer:
y = -2x + 2
Step-by-step explanation:
I need the equation of the line, in standard form, that has an x-intercept of 2 and is parallel to 2x + y = -5.
Write the equation of the line, in standard form, that has an x-intercept of 2 and is parallel to 2x + y = -5. Include your work in your final answer.
"parallel"means "same slope".
let's find, first, the slope of the given line: rewrite the equation in standard form,
that is -
y=-2x-0.5
This means the slope of the required line is "-2"
Now, just plugin the numbers into standard equation:
y=slope*x+intercept
you'll end up with
y=-2x+2
