Answer:
intersecting
Step-by-step explanation:
parallel lines have the same slope
perpendicular lines have slopes that are negative reciprocals
30 POINTS HELP ME
A photo of a wooden fence gate is shown. Wooden braces on the gate form a right triangle. The base is labeled twenty-four inches. The hypotenuse is labeled thirty-eight inches. The height is labeled x inches.
Find the value of x in the diagram to the nearest tenth.
Answer:
x is √868, If rounded then its 29.5 inches
Step-by-step explanation:
A manager at an amusement park wants to know how popular the park's biggest roller coaster is. She counts the number of people waiting in line every half hour. The results are shown below.
19,20,21,22,23,24,26,27,28,29,30,31,32,33,34,35,36,37
Plot the values that represent the minimum, maximum, first quartile, median, and third quartile of the number of people waiting in line.
Plz help i have alot of trouble finding the quartials
The minimum value is 19, maximum is 37, median is 28.5, first quartile is 23.5, and third quartile is 33.5. These measures are calculated by organizing the data in ascending order and finding the middle and approximated middle values of the data set and its halves.
Explanation:First, let's arrange your data in ascending order: 19,20,21,22,23,24,26,27,28,29,30,31,32,33,34,35,36,37. There are 18 data points here.
The minimum value is 19 and the maximum value is 37.
To calculate the median (the middle number), since we have an even number of data points, we take the average of the 9th and 10th numbers. (28+29)/2 = 28.5.
Now, to find the first quartile (lower median), we look at the median of the lower half of the data (excluding the overall median if it's part of the data). The lower half of the data is: 19,20,21,22,23,24,26,27,28. So, we take the average of 23 and 24 which is 23.5.
For the third quartile (upper median), we look at the median of the upper half of the data. Here it is: 29,30,31,32,33,34,35,36,37. So, we take the average of 33 and 34 which is 33.5.
Learn more about Quartiles here:https://brainly.com/question/24329548
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Which relationship describes angle 1 and 2
Answer:A
Step-by-step explanation:
Name this angle using the following picture
Answer:
x = 42°
Step-by-step explanation:
[tex] \angle JML \:and\:\angle LMN [/tex] Linear pair angles or straight line angles.
[tex] \therefore \: \angle JML + \angle LMN = 180 \degree \\ \therefore \: 3x + 54 \degree = 180 \degree \\ \therefore \: 3x = 180 \degree - 54 \degree \\ \therefore \: 3x = 126 \degree \\ \therefore \: x = \frac{126 \degree}{3} \\ \therefore \: x = 42\degree \\ [/tex]
Which of the following shows the Identity Property for Addition?
A. 9 + (-9)=0
B. 9 + 0 = 9
C. 9 = 9
D. 9 x 1 = 9
A study of 420,076 cell phone users found that 131 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such
cancer was found to be 0.0224% for those not using cellphones. Complete parts (a) and (b)
a. Use the sample data to construct a 95 i dence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system
%
(Round to three decimal places as needed)
Answer:
a) 95% Confidence interval = (0.026%, 0.037%) to 3 d.p
b) The result of the 95% confidence interval does not agree with the previous rate of such cancer because the value 0.0224% does not lie within this confidence interval obtained.
Step-by-step explanation:
Confidence Interval for the population proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence.
Mathematically,
Confidence Interval = (Sample proportion) ± (Margin of error)
Sample proportion = (131/420076) = 0.0003118483 = 0.0312%
Margin of Error is the width of the confidence interval about the mean.
It is given mathematically as,
Margin of Error = (Critical value) × (standard Error)
Critical value at 95% confidence interval for sample size of 420,076 is obtained from the z-tables because the sample size is large enough for the properties of the sample to approximate the population properties.
Critical value = 1.960 (from the z-tables)
Standard error = σₓ = √[p(1-p)/n]
n = sample size = 420,076
σₓ = √(0.0003118×0.999688/420076) = 0.0000272421 = 0.0000272
95% Confidence Interval = (Sample proportion) ± [(Critical value) × (standard Error)]
CI = 0.000312 ± (1.96 × 0.0000272)
CI = 0.000312 ± 0.0000534
95% CI = (0.0002586055, 0.0003653945)
95% Confidence interval = (0.000259, 0.000365)
95% Confidence interval = (0.0259%, 0.0365%) = (0.026%, 0.037%) to 3 d.p
b) The result of the 95% confidence interval does not agree with the previous rate of such cancer because the value 0.0224% does not lie within this confidence interval obtained.
Hope this Helps!!!
You roll a die and pick a marble how many outcomes are possible
Answer: 12 because for each number on the die, you get 2 options: one marble or the other. So if it’s a six sided die, you have 12 possible outcomes. (2 times 6)
You roll a die and pick a marble, 12 outcomes are possible.
What is the probability?The possibility of an event in time is known as probability in mathematics. How frequently does the incidence occur over the course of a specific time period, in plain English?
Given:
You roll a die and pick a marble.
When you roll a die,
you'll get either one marble or another.
So, there are 2 possibilities.
When you roll a die, there 6 possible outcomes.
And the total number of possible outcomes,
= 2 times 6
= 2x 6
= 12
Therefore, 12 outcomes are possible.
To learn more about the probability;
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A circular plot of land has a diameter of 14 yards. What is the area of the land? Use 3.14 for π.
Answer:
A =153.86 yd^2
Step-by-step explanation:
The area of a circle is given by
A = pir^2
We need to get the radius. We are given the diameter
r = d/2 = 14/2 =7
A = pi (7)^2
A =49pi
Using 3.14 for pi
A = 49 (3.14)
A =153.86 yd^2
PLease help me it says use cosine law
Answer:
59 degrees
Step-by-step explanation:
law of cosines states that
for sides A B C and angle c opposite to side C,
[tex]C = \sqrt{A^2 + B^2-2ABcos(c)} \\cos(c) = \frac{c^2-a^2-b^2}{-2ab}[/tex]
cos(b) = [tex]\frac{13^2-6^2-15^2}{-2(6)(15)} = 23/45[/tex]
cos-1(23/45) = b
b = 59
Answer:59
Step-by-step explanation:
C2=a2+b2-2ab cosC
13x13=15x15+6x6-2(15)(6)cosC
169=225+36-180cosC
169=261-180cosC
-92=180cosC
-92/-180=cosC
C=arccos92/180. On your calculator it will say cos-1
C=59.23 or m<B = 59. Rounded to the nearest degree.
Please help i will mark as brainliest
Answer:
162 mL
Step-by-step explanation:
1.Convert all volumes to millilitres
(a) Chlorpheniramine
V = 100 mL
(b) Lidocaine
V = \text{2 oz} \times \dfrac{\text{29.57 mL}}{\text{1 oz}} = \text{ 59.14 mL)
(c) Banana flavouring
V = \dfrac{1}{2}\text{ tsp} \times \dfrac{\text{4.93 mL}}{\text{1 tsp}} = \textbf{2.46 mL} }
2.Calculate the total volume
Chlorpheniramine = 100 mL
Lidocaine = 59.14
Banana flavouring = 2.46
TOTAL = 162 mL
The difference between two numbers is 7 and three times their sum is 75.
Answer:
ok thanks for telling us
Step-by-step explanation:
Which of the following is the best solution to | x + 11 | < 17?
Hey there!
| x + 11| < 17
Solving for your ABSOLUTE VALUE
x + 11 < 17 ; x + 11 > -17
Solving solution #1
x + 11 < 17
SUBTRACT by 11 on your sides
x + 11 - 11 < 17 - 11
Cancel out: 11 - 11 because it gives you 0
Keep: 17 - 11 because it helps us compare with x
17 - 11 = 6
Answer #1: x < 6
Solving solution #2
x + 11 > -17
SUBTRACT by 11 on your sides
x + 11 - 11 > -17 - 11
Cancel out: 11 - 11 because it gives you the value of 0
Keep: -17 - 11 because it helps us compare with x
-17 - 11 = -28
Answer #2: x > -28
Overall answer: x < 6 and x > -28
Its an OPEN circle shaded to the left
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
I understood the last one but now I have one that makes me solve for a short side
n^2 + 10^2 = 26^2
n^2 + 100 = 676
n^2 = 576
n = 24
4. When the length of each leg is 2
units, the ratio of the hypotenuse to
the leg is:
Answer:1.4
Step-by-step explanation:
Answer:
It is 1:4
Step-by-step explanation:
I got it right on ed.
3. Because h= b/2 we know that b =
Answer:
2 × h
Step-by-step explanation:
h = b ÷ 2 (multiply both sides by 2)
2 × h = b ÷ 2 × 2
2 × h = b
b = 2 × h
Answer:
2h
Step-by-step explanation:
Which graph fits y=2x+1?
Answer:
C
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
When you plug in one, y equals three and you have a point at hat ordered pair
When you plug in zero you get one, and you have a point at that ordered pair
the slop is going up, and in the equation the slope is positive
log798
What is equivalent to it
Answer:
log 19 + log 42
Step-by-step explanation:
798 = 2* 3 *7*19
= 19 * 42
log 798 = log (19*42)
Now log ab = log a + log b
So:
log 798 = log 19 + log 42 <-- is equivalent to log 798.
Answer:
The answer is 2.356
Anja is creating a triangle using three straws. The two shorter straws have lengths of 20 cm and 21 cm. How long, in centimeters, should the third straw be for Anja to create a right triangle?
Answer: 29cm
Step-by-step explanation:
20^2+21^2=841
Then the square root of 841 is 29
The third straw should be 29cm long in order to form right angles triangles
Application of pythagoras theoremThe theorem states that the square of the hypotenuse is equal to the square of the other two sides
Given the following
adjacent = 20 cm
Opposite side = height = 21cm
Required
Base of the ladder
Use the theorem
c^2 = 20^2 + 21^2
c^2 = 400 + 441
c^2 = 841
c = 29cm
The third straw should be 29cm long in order to form right angles triangles
Learn more on pythagoras theorem here: https://brainly.com/question/343682
What are the outliers of 42,43,46,48,57,60,96,59,38,68,29
Answer:
The outlier is of all those number is 96 and 29
Which of the statements the graph below is true?
Answer:
B. The graph is linear and has an equation of y = -x + 18
Step-by-step explanation:
if the equation was y = -2x + 18 then the graph would look like a staircase and the graph looks linear
The statements about the box plot in Figure A2 are analyzed and determined to be true or false.
Explanation:The graph in Figure A2 is a box plot. Let's go through each statement and determine if it is true or false.
A. Twenty-five percent of the data are at most five: True. The box extends from the first quartile (Q1) to the third quartile (Q3), which represents the middle 50% of the data. The line inside the box is the median, and the whiskers extend to the minimum and maximum values. In this case, the box goes up to five, indicating that 25% of the data are at most five.
B. There is the same amount of data from 4-5 as there is from 5-7: False. The box plot shows the range of values within the quartiles. In this case, the range from 4-5 is smaller than the range from 5-7, indicating that there is more data in the latter range.
C. There are no data values of three: True. The box plot does not have any outlier points at the value of three, indicating that there are no data values at that point.
D. Fifty percent of the data are four: False. The median value in the box plot is the value that divides the data into two equal halves. In this case, the median is not at four, so 50% of the data are not equal to four.
Which face of the net will be the shaded side of the prism when the net is folded.
A
B
C
D
Answer:
A
Step-by-step explanation:
A: will be the connect with 2 sides of hypotenuse of the triangle
Help!!! 30 points and brainliest
[tex]2x^{2} +6x - 5 = 0[/tex]
Answer:
Should be in the pic below
Step-by-step explanation:
Answer:
x = [tex]\frac{-3+\sqrt{19} }{2}[/tex] or x = [tex]\frac{-3-\sqrt{19} }{2}[/tex]
Step-by-step explanation:
We want to factor this. In order to factor it, we need to use the quadratic formula:
[tex]x=\frac{-b+\sqrt{b^2-4ac} }{2a}[/tex] or [tex]x=\frac{-b-\sqrt{b^2-4ac} }{2a}[/tex]
Here, a = 2, b = 6, and c = -5, so plug these in:
[tex]x=\frac{-6+\sqrt{6^2-4*2*(-5)} }{2*2}=\frac{-6+\sqrt{76} }{4} =\frac{-6+2\sqrt{19} }{4} =\frac{-3+\sqrt{19} }{2}[/tex]
AND
[tex]x=\frac{-6-\sqrt{6^2-4*2*(-5)} }{2*2}=\frac{-6-\sqrt{76} }{4} =\frac{-6-2\sqrt{19} }{4} =\frac{-3-\sqrt{19} }{2}[/tex]
Thus, the answers are x = [tex]\frac{-3+\sqrt{19} }{2}[/tex] or x = [tex]\frac{-3-\sqrt{19} }{2}[/tex].
Hope this helps!
for the given function f(x)=2x+4,find f(12)
Answer:
f(12) = 28
Step-by-step explanation:
All you have to do is plug in 12 as x.
f(12) = 2(12) + 4
= 24 +4
= 28
And you're done! :)
Answer:
f(12)=28
Step-by-step explanation:
We want to find what y or f(x) is when x equals 12
To find f(12), substitute 12 in for x
f(x)=2x+4
f(12)=2(12)+4
Multiply
f(12)=24+4
Add
f(12)=28
So I know that 6 times 3 equals 21 but I don’t know how to find the total cups of paint for each problem. Please help asap! :(
would it be 10, I think if you divide 21/3 and 6/2 you get 7+3 is equal to 10
NEED HELP FAST!!!!! The scatterplot represents the total fee for hours renting a bike. The line of best fit for the data is y = 6.855x + 10.215.
A graph shows hours of rental labeled 2 to 6 on the horizontal axis and cost in dollars on the vertical axis. A line increases from 0 to 6.
Which table shows the correct residual values for the data set?
A 3-column table with 5 rows. The first column is labeled x with entries 1, 2, 3, 4, 5. The second column is labeled given with entries 14.95, 25.50, 32, 38.95, 42.50. The third column is labeled residual value with entries negative 2.12, 1.575, 1.22, 1.315, negative 1.99.
A 3-column table with 5 rows. The first column is labeled x with entries 1, 2, 3, 4, 5. The second column is labeled given with entries 14.95, 25.50, 32, 38.95, 42.50. The third column is labeled residual value with entries 2.12, negative 1.575, negative 1.22, negative 1.315, 1.99.
A 3-column table with 5 rows. The first column is labeled x with entries 1, 2, 3, 4, 5. The second column is labeled given with entries 14.95, 25.50, 32, 38.95, 42.50. The third column is labeled residual value with entries 2.12, negative 1.575, 1.22, negative 1.315, 1.99.
A 3-column table with 5 rows. The first column is labeled x with entries 1, 2, 3, 4, 5. The second column is labeled given with entries 14.95, 25.50, 32, 38.95, 42.50. The third column is labeled residual value with entries negative 2.12, 1.575, negative 1.22, 1.315, negative 1.99.
Answer:
I was on a unit test so i couldn't look at the right answer but i believe it was A but i could be wrong
Step-by-step explanation:
The given data and line of best fit (function) of y = 6.855·x + 10.215 give
the table that shows the correct residual values as follows;
[tex]\begin{array}{|c|c|c|c|}x&Given& Residual \\1&14.95&-2.12\\2&25.50&1.575\\3&32&1.22\\4&38.95&1.315\\5&42.5&-1.99\end{array}\right][/tex]
How can the residual values be calculated?The residual values = Actual value - Predicted value
The given table is resented as follows;
[tex]\begin{array}{|c|c|c|c|}x&Given&Predicted = 6.855 \times x + 10.215& Residual = Actual - Predicted\\1&14.95&17.07&-2.12\\2&25.50&23.925&1.575\\3&32&30.78&1.22\\4&38.95&37.635&1.315\\5&42.5&44.49&-1.99\end{array}\right][/tex]
From the above completed table, the correct option is therefore;
[tex]\begin{array}{|c|c|c|c|}x&Given& Residual \\1&14.95&-2.12\\2&25.50&1.575\\3&32&1.22\\4&38.95&1.315\\5&42.5&-1.99\end{array}\right][/tex]Learn more about the line of best fit here:
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Please help I don’t understand
Answer: The first one is 90%.
Step-by-step explanation:
please help in the question it should be if t=-6 when r =-2 its an error
Answer:
r = - [tex]\frac{12}{7}[/tex]
Step-by-step explanation:
Given that r varies inversely as t , then the equation relating them is
r = [tex]\frac{k}{t}[/tex] ← k is the constant of variation
To find k use the condition t = - 6 when r = - 2, then
- 2 = [tex]\frac{k}{-6}[/tex] ( multiply both sides by - 6 )
12 = k, thus
r = [tex]\frac{12}{t}[/tex] ← equation of variation
when t = - 7, then
r = [tex]\frac{12}{-7}[/tex] = - [tex]\frac{12}{7}[/tex]
Claire can eat 3/4 of a pizza every 5 minutes. How much of a pizza can she eat in 1 minute?
Answer:
3/20 of the pizza
Step-by-step explanation:
To find how much she eats in one minute, you have to change the fraction into a decimal, which is 0.75, and divide that by 5. Once you've done that, you get 0.15 of the pizza in a minute. this can be simplified into the fraction 3/20.
Answer:
3/20
Step-by-step explanation:
If she can do 3/4 per 5 minutes, the amount in 1 minute is 1 fifth of 3/4, so multiply 3/4 by 1/5 to get 3/20.
What is the volume of this prism?
A. 11.75 cubic units
B. 31.5 cubic units
C. 63.0 cubic units
D. 56.3 cubic units
Answer:
56.3
Step-by-step explanation:
I believe it is the answer because 3×5×3.75= 56.25, and you can round that to 56.3. pls dont be mad if it's wrong. I'm like 85% confident that's the answer.
Which equation is true?
9x2 – 25 = (3x - 5)(3x – 5)
9x2 – 25 = (3x – 5)(3x + 5)
9x2 – 25 = -(3x + 5)(3x + 5)
9x2 - 25 = -(3x + 5)(3x - 5)
Answer:
9x2 – 25 = (3x – 5)(3x + 5)
Step-by-step explanation:
(3x – 5)(3x + 5)
= 9x² + 15x - 15x - 25
= 9x² - 25
Final answer:
The correct equation is 9x² – 25 = (3x – 5)(3x + 5), as it is the factored form of the difference of squares, where 9x² is the square of 3x and 25 is the square of 5.
Explanation:
The equation we are considering is 9x² – 25. We need to determine which of the provided options is a true equality. The equation 9x² – 25 is a difference of squares, which factors as (a² – b²) = (a – b)(a + b). In this case, a is 3x and b is 5 because (3x)² = 9x² and 5² = 25.
Thus, the factored form of the equation 9x² – 25 is (3x – 5)(3x + 5). So, the correct equation from the given options is 9x² – 25 = (3x – 5)(3x + 5).