you get a point every 27.3 seconds
Answer:
2.2 i think
Step-by-step explanation:
Suppose a certain breed of dog loses about 75 hairs per day. What integer represent this change in the amount of hair per week write a mathematical argument that can be used to defend your solution
Answer:
75 hairs/ day = 525 hairs / week
Step-by-step explanation:
so your base question for this is 75 hairs/ day =? h/ week. how? if the dog is losing 75 hairs per day, then you would do 75 x 7 becuase there are 7 days in a week. the answer to that would give you how many hairs the dog was losing per week. (see attached image for reference)
Hope this helps!
#MRS
English is the predominant language spoken in Chile. Question 1 options: True False
whoever answers first gets the crown
Answer: The answer is false!
Step-by-step explanation: You may think its true but NO, its not true!
Answer: false
Step-by-step explanation:
the correct answer is a dialect of spanish, chilean spanish.
Three research departments have 8 ,10 , and 7 members, respectively. Each department is to select a delegate and an alternate to represent the department at a conference. In how many ways can this be done?
We can conclude that exists 211680 ways.
How many ways can this be done?We know that the three research department is have 8, 10, and 7 members.
We choose a delegate and an alternate to represent the department.
First case: department have 8 members.
So, for a delegate, we have 8 options, and for a alternate 7, so a total of
\(8 \times 7 = 56 \ \text{options}\)
Second case: department have 10 members.
So, for a delegate, we have 10 options, and for a alternate 9, so a total of
\(10\times 9 =90 \ \text{options}\)
Third case: department have 7 members.
So, for a delegate, we have 7 options, and for a alternate 6, so a total of
\(7\times6 = 42 \ \text{options}\)
Therefore, we get:
\(56 \times 90 \times 42 = \bold{211680}\)
Hence, we conclude that exists 211680 ways.
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Please explain your answer :D
don’t answer if you will not provide an explanation please :”)
Answer:
Step-by-step explanation:
QUESTION 7:
We are trying to find angles 1 and 2.
Known angle: 107˚.
In this question, we have 2 parallel lines with a transversal. A transversal is a line that passes through 2 parallel lines making it so that the angles on both sides are exactly the same.
Step 1: Find the measures of all the angles using the one we already know.
I will start with the angle adjacent (right next to) the angle that measures 107˚. As you can see, it is a supplementary angle because both of them form a straight line, or 180˚.
Therefore,
107+x= 180
x= 180-107
x= 73˚
Next, I will find the measure of the angle that is vertical to the one that measures 107˚. Note that angles that are vertical to each other are always identical, or in other words they have the same measure. Hence, the angle "vertical", or opposite to the one that measures 107˚ has to measure 107˚ as well. You can also tell this is true because they look the same.
Now I'll find the measure of the angle vertical to the one that measures 73˚. As we know, vertical angles are identical, so the one vertical to it is 73˚.
Here, I'll solve for angles 1 and 2. Like I said earlier, when a transversal crosses through 2 parallel lines, there will be 2 sets of angles that all have the same measurements.
To solve for angle 1, simply know what angle is right below it, and that is the one that measures 107˚. (If you look at the 2 lines, you will see that both angle sets are essentially duplicates of each other.) Likewise, angle 2 has to be 73˚ because the one under it is also 73˚.
Angle 1: 107˚
Angle 2: 73˚
QUESTION 8:
Again, we have a transversal that passes through 2 parallel lines. One angle measures 95˚. When there are 3 seperate angles along a straight line, the one next to the one with the given measurement will be the same as that one.
So angle 3 is 95˚. To find angle 4, find the angle measurement that's vertical to angle 3, which is 95˚. Now, since that angle and angle 4 are supplementary (both form a straight line which is always 180˚), 95+x= 180.
(x stands for angle 4)
x+95= 180
x= 180-95
x= 85
Angle 4= 85˚.
QUESTION 9:
ANGLE 5: 49˚
When there is a transversal, there are 2 identical pairs of angles. Therefore, angle 5 must be 49˚.
ANGLE 6: 131˚
angle 5 and angle 6 form a straight line which means they are supplementary angles. Therefore, both angles must add up to 180˚. So 49+x= 180
x= 180-49= 131
(x stands for angle 6)
Hope this helps!! Also I worked pretty hard on this so brainliest would be appreciated :D
Practice problems if it helps :) : https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-geometry/cc-8th-angles-between-lines/e/parallel_lines_1
I will give brainliest PLEASE HELP
Rihanna planned a rectangular courtyard for a park and made a scale drawing using inches as the unit of measurement. She originally planned for the length of the actual courtyard to be 54 feet, but she decided to change it to 72 feet. If the length of the courtyard is 18 inches in her scale drawing, which statement about the change of scale is true?
One inch represented 1 foot in the first scale, but now 1 inch represents 4 feet in the second scale.
One inch represented 4 feet in the first scale, but now 1 inch represents 3 feet in the second scale.
One inch represented 54 feet in the first scale, but now 1 inch represents 72 feet in the second scale.
One inch represented 3 feet in the first scale, but now 1 inch now represents 4 feet in the second scale.
Answer:
scale 1-1in=3ft
scale 2-1in=4ft
Answer:
Step-by-step explanation:
I feel like its C
It’s the end of the season, so softball bats are on clearance for an additional 30% off the sales price. Finley finds one in her size: It was originally $70.00, but is marked down to $50.00. How much will the bat cost Finley on clearance?
The requried, bat will cost Finley $35.00 on clearance with an additional 30% off discount.
What is the percentage?The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
Here,
The bat is marked down to $50.00, but with an additional 30% off clearance discount, the final price that Finley will pay is,
Final price = $50.00 - (30% of $50.00)
To calculate the discount, we first need to find 30% of $50.00, which is:
0.30 × $50.00 = $15.00
So the discount is $15.00.
Substituting this value into the equation, we get:
Final price = $50.00 - $15.00 = $35.00
Therefore, the bat will cost Finley $35.00 on clearance with an additional 30% off discount.
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Show me 2 ways to show 4(5-3)
Answer:
4(5-3) can be written some ways like this
2*4
(5-3)4
(6-4)*4
x=4*(12-10)
I would solve 4(5-3) using PEMDAS (parentheses, exponents, multiplication, division, addition, subtraction)
4*(5-3)
4*(2)
4*2
8
Step-by-step explanation:
Hope this helps! BH
show that the (5,5),(5,0),and (0,0) are the vertices of an isosceles triangle.
An isosceles triangle has 2 sides that are equal.
I plotted these points. See attached screenshot.
The first side's distance is 5. You can just count those units along the x axis. (0,0) and (5,0) share the same y coordinate, so the difference in x coordinates is 5-0 = 5.
The next sides's distance is also 5. You can count that distance on the coordinate plane. (5,5) and (5,0) share the same x coordinate, so the difference in y coordinates is 5-0 = 5.
These two sides make a right triangle and are equal length. This is an isosceles right triangle.
Please help i’ll give brainliest!
For which set of data are the median and mode the same number?
A. 4, 5, 7, 7, 8, 10
B. 3, 5, 6, 8, 8, 9
C. 5, 5, 6, 8, 9, 10
D. 4, 5, 7, 8, 9, 9
Answer: A
Step-by-step explanation:
median: 7+7=14
14/2=7✅
mode: 7 shows up the most (twice)
Can someone answer this?
I’ll give Brainliest if you explain how you got the answer.
20 points?
Only questions C and D need to be answered
Explanation:
C. Perimeter of Trapezium
= sum of all sides
= 8 + 4 + 4 + 6
= 22
D. Area of Trapezium
= 1/2 × (a + b) × height
= 1/2 × (8 + 6) × √15
= 7√15
E. Perimeter of square
= 4(side)
= 4(5)
= 20
F. Area of square
= side × side
= 5 × 5
= 25
I. Answer
The area will be 4 times more than the current area of about 64 units².
side² = 16
side = √16
side = 4
If the side is doubled, new side = 4 × 2 = 8
New Area: 8² = 64 units²
Ellison wants to purchase a backpack for $76. The tax in his area is 7%. What would his total cost be?
Answer:
The cost is $81.32
Step-by-step explanation:
Answer: $81.32
Step-by-step explanation:
I need help with these two questions. (make the word sentences into a inequality)
1. the sum of a number and 1 is at least 5 (change into a inequality)
2. A tropical depression has maximum sustained winds of less than 39 miles per hour. write an inequality showing the wind speeds
Answer:
!. -15 i think im not sure
2. 39
Step-by-step explanation:
What is the y-intercept of this graph?
A.0
B.2
C.4
D.8
Answer:
A) 0
Step-by-step explanation:
If the line keeps going it will never hit y
Answer needed by 1:20pm (does anyone know how to find all answers to IXL Y.11???)
Answer:
91ft^2
Step-by-step explanation:
A = w*l
first, solve for the bottom rectangle
w = 7ft
l = 8ft
7ft * 8ft = 56ft^2
then for the second rectangle
l = 5ft
w = 7ft
5ft*7ft = 35ft^2
total area = rectangle 1+2
so 35ft^2+56ft^2=91ft^2
Answer:
The answer for the Area of the shape is 91ft²
Step-by-step explanation:
Area of the shape =Area of Bigger rectangle+ Area of small rectangle
A=L×B+l×b
A=7×8+5×7
A=56+35
A=91ft²
What is the slope of the line represented by the equation f(x) = 3/2x - 4?
A. -4
B. -3/2
C. 3/2
D. 4
Step-by-step explanation:
I got C
PLZ HELP!!! Use limits to evaluate the integral.
Split up the interval [0, 2] into n equally spaced subintervals:
\(\left[0,\dfrac2n\right],\left[\dfrac2n,\dfrac4n\right],\left[\dfrac4n,\dfrac6n\right],\ldots,\left[\dfrac{2(n-1)}n,2\right]\)
Let's use the right endpoints as our sampling points; they are given by the arithmetic sequence,
\(r_i=\dfrac{2i}n\)
where \(1\le i\le n\). Each interval has length \(\Delta x_i=\frac{2-0}n=\frac2n\).
At these sampling points, the function takes on values of
\(f(r_i)=7{r_i}^3=7\left(\dfrac{2i}n\right)^3=\dfrac{56i^3}{n^3}\)
We approximate the integral with the Riemann sum:
\(\displaystyle\sum_{i=1}^nf(r_i)\Delta x_i=\frac{112}n\sum_{i=1}^ni^3\)
Recall that
\(\displaystyle\sum_{i=1}^ni^3=\frac{n^2(n+1)^2}4\)
so that the sum reduces to
\(\displaystyle\sum_{i=1}^nf(r_i)\Delta x_i=\frac{28n^2(n+1)^2}{n^4}\)
Take the limit as n approaches infinity, and the Riemann sum converges to the value of the integral:
\(\displaystyle\int_0^27x^3\,\mathrm dx=\lim_{n\to\infty}\frac{28n^2(n+1)^2}{n^4}=\boxed{28}\)
Just to check:
\(\displaystyle\int_0^27x^3\,\mathrm dx=\frac{7x^4}4\bigg|_0^2=\frac{7\cdot2^4}4=28\)
which ordered pairs are in the solution set of the system of linear inequalities
y> -1/2x
y< 1/2x + 1
A (5,-2),(3,1),(-4,2)
B (5,-2),(3,-1),(4,-3)
C (5,-2),(3,1),(4,2)
D (5,-2),(-3,1),(4,2)
The ordered pair which is the solution to the linear equations is given by relation S = ( 5 , -2 ) , ( 3 , 1 ) , ( 4 , 2 )
What are Linear Equations?An equation is said to be linear equation in two variables if it is written in the form of ax + by + c=0, where a, b & c are real numbers and the coefficients of x and y, i.e a and b respectively, are not equal to zero.
The linear equations in one variable is an equation which is expressed in the form of ax+b = 0, where a and b are two integers, and x is a variable and has only one solution
On a graph, a linear equation forms a straight line. On a graph, a nonlinear equation produces an S-curve, a bell curve, or another nonlinear shape.
Given data ,
Let the linear function be represented as A
Now , the value of A is
y > -1/2x be equation (1)
y < 1/2x + 1 be equation (2)
Now , on simplifying , we get
Let the ordered pairs be A ( 5 , -2 ) , B ( 3 , 1 ) and C ( 4 , 2 )
when x = 5 and y = -2
-2 > ( -1/2 )5
-2 > -2.5
And , -2 < ( 1/2 )(5) + 1
-2 < 3.5
Therefore , the inequality is true
when x = 3 and y = 1
1 > ( -1/2 )3
1 > -1.5
And , 1 < ( 1/2 )(3) + 1
1 < 2.5
Therefore , the inequality is true
when x = 4 and y = 2
2 > ( -1/2 ) ( 4 )
2 > -2
And , 2 < ( 1/2 ) ( 4 ) + 1
2 < 3
Therefore , the inequality is true
Hence , the solution to the linear inequality are ( 5 , -2 ) , ( 3 , 1 ) , ( 4 , 2 )
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PLS HELP WORTH 35 POINTS!!
in wich of the tables are x and y inversely proportional
A
x=1,2,3,4
y=6,3,2,1.5
B
x=2,3,5,7
y=7.5,5,3,2
C
x=1,3,4,24
y=24,8,6,1
D:
x=0.1,0.3,25,100
y=200,40,0.8,0.2
Answer:
A, C
Step-by-step explanation:
If it is inversely proportional then y = k/x
Let's try one by one for the options. (im replacing y and x in the equation and finding k to see if k is the same all throughout)
A.
6 = k/1 (k=6)
3 = k/2 (k=6)
2 = k/3 (k=6)
1.5 = k/4 (k=6)
Yes! It's the same everywhere so this is correct!
B.
7.5 = k/2 (k=15)
5 = k/3 (k=15)
3 = k/5 (k=15)
2 = k/7 (k=14)
For the last one k is not the same so nope. It is wrong.
C.
24 = k/1 (k=24)
8 = k/3 (k=24)
k = 6×4 = 24
k = 24×1 = 24
This is correct too.
D.
k = 0.1×200 = 20
k = 0.3×40 = 12
k = 0.8 × 25 = 20
We can already see that k is not the same everywhere.
Only A and C, x and y are inversely proportional for all of the values
Answer: c
Step-by-step explanation:
NEED HELP ASAP Match each set of information about a circle with the area of that circle.
Drag and drop the card to match the information.
Answer:
the first one is A The second on C the third one D and last one B
Step-by-step explanation:
1.Let k be a positive real number. The line x + y = k and the circle x^2 + y^2 = k are drawn. Find k so that the line is tangent to the circle.
2.Let A = (6,2), and let B be the reflection of A over the line y = 1/2x + 5. Find the coordinates of B
If your phone battery goes down by 4.58% every 10 minutes, how much has it gone down in 50 minutes?
Answer as a decimal. Round to the nearest 100th.
Answer:
22.9
Step-by-step explanation:
4.58 drops every 10 minutes
What would happen if it dropped 50 minutes
4.58x5 = 22.9
Answer:
22.9
Step-by-step explanation:
4.58x5 = 22.9
Paddling with the current, a group of kayakers traveled 9 miles in 2 hours. Paddling back, they traveled 4 miles in the same amount of time. What was the speed of the current and the speed of the kayakers in still water?
Please do not answer 3.25 and 1.25 they are incorrect.
Answer: the speed of the current is 5 miles an hour
Step-by-step explanation:
9-4=5
What is $400 at 3% for 5 years?
A. Find interest earned
B. Find the balance of the account
The interest earned is $60 and the balance of the account is $460. The interest and the balance of the account will be both calculated with their given formulas.
An expense or payment for using borrowed money is interest; it is occasionally stated as a percentage of the principal borrowed. It could also be applied to the returns on investments or savings. Interest is the cost that a borrower typically reimburses a lender for the use of their funds.
A. We must use the formula-
Interest = Principal x Rate x Time, to calculate the interest earned.
Here, Interest = $400 divided by 0.03 and multiplied by 5.
Earned interest is $60.
B. We must utilize the formula-
Balance = Principal + Interest, to determine the account's balance.
Balance = $400 + computed interest in this instance.
Balance: $400 + $60.
The account's balance is $460.
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what is 30-5 ( 6+3) 3 power of 22
If you help brainliest
Answer:
35 ig it is correct i tried my best
Step-by-step explanation:
Can somebody answer this?
Answer:
-5
-3
-2
0
1
Step-by-step explanation:
just put the number they give you for x and solve and the answer you get is the answer for y
Answer:
Step-by-step explanation:
Given the slope-intercept form:\(y=\frac{1}{3}x-2\)
Slope-intercept form: \(y=mx+b\)
We substitute our x-values (-9, -3, 0, 6, and 9) for x in \(y=\frac{1}{3}x-2\) to find the y-values.
For -9:
\(y=\frac{1}{3}x-2 < ==substitute\ -9\ for\ x\\\\y=\frac{1}{3}(-9)-2\\\\y=\frac{-9}{3}-2 < ==divide\ (don't\ forget\ the\ signs)\\\\y=-3-2 < ==add\ or\ subtract\\\\y=-5 < =value\ of\ y\\\\(-9,-5)\)
For -3:
\(y=\frac{1}{3}x-2 < ==substitute\ -3\ for\ x\\\\y=\frac{1}{3}(-3)-2\\\\y=\frac{-3}{3}-2 < ==divide\ (don't\ forget\ the\ signs)\\\\y=-1-2 < ==add\ or\ subtract\\\\y=-3 < =value\ of\ y\\\\(-3,-3)\)
For 0:
\(y=\frac{1}{3}x-2 < ==substitute\ 0\ for\ x\\\\y=\frac{1}{3}(0)-2 < ==any\ number\ multiplied\ by\ 0\ equals\ zero\\\\y=\frac{0}{3}-2 < ==divide\ (don't\ forget\ the\ signs)-zero\ divided\ by\ any\ \#\ equals\ 0\\\\y=0-2 < ==add\ or\ subtract\\\\y=-2 < =value\ of\ y\\\\(0,-2)\)
For 6:
\(y=\frac{1}{3}x-2 < ==substitute\ 6\ for\ x\\\\y=\frac{1}{3}(6)-2\\\\y=\frac{6}{3}-2 < ==divide\ (don't\ forget\ the\ signs)\\\\y=2-2 < ==add\ or\ subtract\\\\y=0 < =value\ of\ y\\\\(6,0)\)
For 9:
\(y=\frac{1}{3}x-2 < ==substitute\ 9\ for\ x\\\\y=\frac{1}{3}(9)-2\\\\y=\frac{9}{3}-2 < ==divide\ (don't\ forget\ the\ signs)\\\\y=3-2 < ==add\ or\ subtract\\\\y=1 < =value\ of\ y\\\\(9,1)\)
*View the attached graph to verify these answers*
Hope this helps!
Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation:
Draw a rhombus that is not a square. Label the lengths of its sides and its height so it represents a rhombus with an area of 20 square inches.
Answer:
/\
\(\sqrt{20}\) / \\(\sqrt{20}\)
/ \
\ /
\(\sqrt{20}\) \ / \(\sqrt{20}\)
\/
Step-by-step explanation:
i hope this is right it took me 30 min for the ascii
christopher places an order for 48 dozen cookies to bring to his family holiday party. his family eats 2/3 of the cookies, how many cookies are left over?
Answer:
16 cookies are left.
Step-by-step explanation
2/3 of 48 is 32
48-32=16
Simplify this answer please
Jaha has designed a rocket. She determines the initial velocity of her rocket is 36 meters per second. She uses the function h(t) = - 9.8t ^ 2 + 36t to find the height, h(t) based on time, t, in seconds. Jana wants to know approximately when her rocket will be at the following heights:
24 Meters
36 Meters
To find when the rocket will be at a certain height, we can set the equation for height, h(t), equal to the given height and solve for t.
For 24 meters:
-9.8t^2 + 36t = 24
-9.8t^2 + 36t - 24 = 0
We can solve for t using the quadratic formula:
t = (-b ± sqrt(b^2 - 4ac)) / 2a
where a = -9.8, b = 36, and c = -24. Plugging in these values, we get:
t = (-36 ± sqrt(36^2 - 4(-9.8)(-24))) / 2(-9.8)
t ≈ 1.87 seconds or t ≈ 3.14 seconds
So the rocket will be at a height of 24 meters approximately 1.87 seconds after launch and again approximately 3.14 seconds after launch.
For 36 meters:
-9.8t^2 + 36t = 36
-9.8t^2 + 36t - 36 = 0
Using the quadratic formula again, we get:
t = (-36 ± sqrt(36^2 - 4(-9.8)(-36))) / 2(-9.8)
t ≈ 1.16 seconds or t ≈ 3.66 seconds
So the rocket will be at a height of 36 meters approximately 1.16 seconds after launch and again approximately 3.66 seconds after launch.