Answer:
Triangle PQR is an isoceles triangle since PQ=QR, where angle P= angle R (property of isoceles triangle)
Jenna works in an ice cream shop. When she starts her shift the tub of chocolate ice cream is 23 full. When she finishes her shift 612 h later, there is only 16 of the tub left. What was the average hourly change in tub fullness?
Answer:
[tex]Rate = 1.1/hr[/tex]
Step-by-step explanation:
Given
[tex]Start = 23[/tex]
[tex]End = 16[/tex]
[tex]Hours = 6\frac{1}{2}h[/tex]
Required
Determine the hourly rate
First, we need to determine the ice cream sold
[tex]Ice\ Cream = 23 - 16[/tex]
[tex]Ice\ Cream = 7[/tex]
Next, we calculate the hourly rate:
[tex]Rate = Ice\ Cream/Hours[/tex]
[tex]Rate = 7/6\frac{1}{2}h[/tex]
[tex]Rate = 7/\frac{13}{2}h[/tex]
[tex]Rate = 7*\frac{2}{13h}[/tex]
[tex]Rate = \frac{14}{13h}[/tex]
[tex]Rate = 1.07692307692/hr[/tex]
[tex]Rate = 1.1/hr[/tex] -- Approximated
Answer:
Step-by-step explanation:
First 2/3-1/6=1/2 1/2÷6 1/2=1/13
I WILL GIVE BRAINLIEST PLEASE HELP Picasso's Phone Shop charges $33.16 for its activation fee plus $5.63 for every gigabyte, g, of data you use over your limit. The equation that
models the total cost (T) is T (9) = 5.639 + 33.16 Which value in the equation represents the rate of change?
A
the number of gigabytes used over
B
$5.63
$33.16
D
$38.79
E
I don't know yet
Answer:
i think it is $5.63. I might be wrong....
Step-by-step explanation:
because depending on how much gb of data you use the price can change.
5.63 for gigabyte.
increases by 5.63 every time you use more Gb
increase rate of change is 5.63.
Is (-3,-8) a solution
Answer:
So, the point (3,8) is not a solution to this system of linear equations. ... Since the point (3,8) does not produce the same answer on both sides of each equation, the given point is not a solution to this system of linear equations.
Step-by-step explanation:
Select the correct answer.
Michael solved this inequality as shown:
Step 1: -6(x + 3) + 10 < -2
Step 2: -6x − 18 + 10 < -2
Step 3: -6x − 8 < -2
Step 4: -6x < 6
Step 5: x > -1
What property justifies the work shown between step 3 and step 4?
A. transitive property
B. division property of inequality
C. distribution property
D. addition property of inequality
Answer:
D. addition property of inequality
Step-by-step explanation:
Michael uses addition to move -8 from one side to the other.
Answer:
D. addition property of inequality
Step-by-step explanation:
Michael uses addition to move -8 from one side to the other one
WILL GIVE BRAINLIEST
PLEASE HELP
The area in square feet of a rectangular field is x^2 - 130x + 4000. The width, in feet, is x - 50. What is the length, in feet?
Answer:
(x-80)
Step-by-step explanation:
( i accidentaly put this in the comments)
x^2-130x+4000 can be factored into (x-80)(x-50), if the width is (x-50) then the length is (x-80)
HELP PLEASE!!!!❕❕❕write in standard form an equation of the line
slope= 2/5;(-1,3)
Answer: 2x - 5y = -17
Step-by-step explanation: Let's use the point-slope formula.
The point-slope formula is written y - y₁ = m(x - x₁).
In this formula, (x₁, y₁) is our point and m is our slope.
Now let's plug all our information into the formula.
So we have y - 3 = 2/5(x + 1).
Notice that I put x + 1 inside the parenthses and this
is because we have x minus a negative 1 which means x + 1.
Our next step would be to distribute this 2/5through both
terms inside the parenthses to get 2/5x + 2/5 on the right side.
So we have y - 3 = 2/5x + 2/5.
Now in standard form, we cannot have any fractions.
We need to get rid of them by multiplying
both sides of the equation by 5.
When we do this, we get 5y - 15 = 2x + 2.
Now we just move our number to the right by
adding 15 to both sides of the equation.
That gives us 5y = 2x + 17.
Move our 2x to the left side by subtracting
2x from both sides to get -2x + 5y = 17.
In standard form, the coefficient of the x term must be positive.
So our last step is to divide both sides
by -1 so that our answer is 2x - 5y = -17.
Answer:
2x-5y = -17
Step-by-step explanation:
Using point slope form
y-y1 = m(x-x1)
where m is the slope and (x1,y1) is the point on the line
y-3 = 2/5(x- -1)
y-3 = 2/5(x+1)
Multiply each side by 5 to clear the fraction
5(y-3) = 5* 2/5(x+1)
Distribute
5y-15 = 2x+2
Standard form is Ax + By = C where A is a positive integer and B and C are integers
Subtract 5y from each side
-15 = 2x-5y +2
Subtract 2 from each side
-17 = 2x-5y
2x-5y = -17
Which is the value of this expresssion j=-2 and k= -1
x
Step-by-step explanation:
Rates of change. Please help!! :)
Answer:
it is either -7 or 0
Step-by-step explanation:
hope this helped
Please help ASAP on both questions I don’t have that many points and this is due in 10 mins :(
Answer:
8) 0
9) undefined
−10 ≤ −5; Add 15 to both sides
Answer:
This eqation is a true equation.
Step-by-step explanation:
The answer would be 5 ≤ 10
how do I know what integer the irrational number that was squared is closest to?
Answer:
Approximate Irrational Numbers (solutions, examples, videos ...www.onlinemathlearning.com
Step-by-step explanation:try this it might help
What is 125% of 10, does anyone know?
Answer:
12.5
Step-by-step explanation:
125% is equal to 1.25
10 x 1.25 = 12.5
12.5 is 125% of 10
Hope this helped :)
Please consider Brainliest :)
Answer:
12.5
Step-by-step explanation:
To find 125% of 10 simply multiply the percent by 10
You first need to but the percent in decimal form. To do this, move the understood decimal to the left by 2 spaces
1.25 x 10 = 12.5
Answer please
Brainpower for best answer
Answer:
$26.80
Step-by-step explanation:
Tacos: 4 x $1.25 = $5
Burgers: 2 x $2.65 = $5.30
Fries: 4 x $2.25 = $9
Juice: 6 x $1.25 = $7.50
5 + 5.30 + 9 + 7.50 = $26.80
Answer:
$4.47
Step-by-step explanation:
There are 6 girls
4*1.25=5
2*2.65=5.30
4*2.25=9
6*1.25=7.50
9+7.50+5.30+5=26.80
26.80/6=4.467---> $4.47
After measuring some experimental quantity 10 times, you work out the statistics (e.g., average, standard deviation, standard error) for this measurement. You then measure the same quantity an additional 30 times, for 40 trials total. Again, you work out the statistics now using all 40 trials. Which of these will change appreciably when working out the statistics using the larger number of trials?
A. Average
B. Standard Deviation
C. Standard Error of the Average
D. Systematic Error
Answer:
Standard Error of the Average
Step-by-step explanation:
Its standard Error of the average because they are working again and again with the forty trials.
Several statistics can be calculated from values of an experiment. The standard error of average would change appreciably when working out the statistics using the larger number of trials
Of the given options, the standard error of average would have the highest change.
The proof is as follows;
As the sample size changes, the mean and the standard deviation would change (but the change in the mean and standard deviations are negligible)As sample size changes, the changes in the standard error would be noticed, and its value becomes smaller.The standard error is calculated using:
[tex]SE = \frac{\sigma}{\sqrt n}[/tex]
Assume:
[tex]\sigma = 10[/tex] when n = 10
The standard error would be:
[tex]SE_1 = \frac{10}{\sqrt{10}} = 3.162[/tex]
When n becomes 40, assume [tex]\sigma = 9.8[/tex]
The standard error would be:
[tex]SE_2 = \frac{9.8}{\sqrt{40}} = 1.550[/tex]
By compare the values of the standard error in both cases, we can conclude that option (c) is correct.
Read more about Standard Error of the Average at:
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Please help!!
Which of the following best describes triangle GFH?
A. Isosceles triangle
B. Acute triangle
C. Scalene triangle
D. Right triangle
Answer:
C. Scalene triangle
Step-by-step explanation:
What I would do is add all of the angles to 180 and then solve for x.
6x + 10 + 7x + 15x + 2 = 180
28x + 12 = 180
28x = 168
x = 6
Then, plug in 6 for each expression to find each angle
6(6) + 10 = 46
7(6) = 42
15(6) + 2 = 92
Since none of the angles are equal and one of the angles is over 90 degrees, triangle GFH is a scalene triangle
what’s 3 times 6 over 7 **MULTIPLY
Would it be 2.5??? I think it would but not completely sure
Answer:
It is 2.57 which is approximately 2.6 to 1 dp and 3 to a whole number
If a car's value is decreasing at a constant rate of 4 % per year, by what percent will it decrease in 8 years?
Answer:
32%
Step-by-step explanation:
Every year it's 4% so you multiply the percentage by the number of years( in this case 8)
So, 4x8=32. Therefore, your answer is 32%.
The 32 percent should be decreased in 8 years.
Given that,
The car value should be decreased at the constant rate of 4% per year. Now the total number of years is 8.Based on the above information, the calculation is as follows:
= 4% (8)
= 32%
Therefore we can conclude that the 32 percent should be decreased in 8 years.
Learn more: brainly.com/question/17852816
How do I solve this?
Answer:
(x, y) = (18, 5)
Step-by-step explanation:
Assuming the three lines meet at a single point at lower left (the figure is sloppily drawn), the angle (3x)°+49° is a corresponding angle to (7x-23)°. That means they have the same measure:
3x +49 = 7x -23
72 = 4x . . . . . . . . . add 23-3x
18 = x . . . . . . . . . . . divide by 4
__
Angles (3x)° and (11y-1)° are "corresponding" angles, so are congruent.
3x = 11y -1
3(18) +1 = 11y . . . . add 1, fill in the value of x
55/11 = y = 5 . . . . divide by 11
The values of x and y are 18 and 5, respectively.
True or false: fx) is a function True O B. False
Answer:
False
Step-by-step explanation:
False, f(x) is not a function.
What is function?Function is that relation in which each element of set A mapped with only one element of another set that is set B.
It is necessary to be one to one mapping
In the given figure,
let set A = {0,5,10,15},
and set B = {0,1,2,3}
The element of set A mapped with only one element of set B except 5 which mapped with two elements in set B.
Element 5 mapped with {1,3} that is not fulfilling the definition of function.
Hence, f(x) is not a function.
Learn more about function:
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In a survey of 1,600 people who owned a certain type of car, 960 said they would buy that car again. What percent surveyed were satisfied with the car?
Answer:
60%
Step-by-step explanation:
960/1600 = 0.6
0.6 = 60%
If you know this or how to do this please help me
Answer:
(M) Neither table A nor Table B represents a Function since table A starts with a pattern that has a slope of 5 then it changes to 10 when it get to the negatives. And table B has a weirdly obvious nonlinear function that is constantly changing.
Step-by-step explanation:
Which of the following expressions is equivalent to the expression 42 + 90
Please help 10 points
Answer:
60° + 38° + x° = 180°
=> 98 + x = 180
=> x = 180 – 98
=> x = 82°
35,621 rounded to the Tens place
Answer:
35,620
Step-by-step explanation:
I hope this helped!
Answer:
35,620
Step-by-step explanation:
Its right
. In the formula p = kt, find t when k = 36 and p = 144.
Answer:
t = 4
Step-by-step explanation:
p = kt
144 = 36t
t = 144/36
t = 4
Answer:
t = 4
Step-by-step explanation:
You need to do 144 divided by 6 to find t.
And 144 divided by 6 equals 4, therefore t = 4
the function f is defined by f(x)=x+3/2x+7. find f(x-1)
988+765*76547+855558-88855=
plz help I will give brainleist
Answer:
59,326,146
Step-by-step explanation:
multiply the numbers- 765 * 76547 =585584552.add and subtract the numbers- 988+58558455+855558-88855 which is equal to = 59,326,146
A rectangular garden measures 15 meters by 24 meters. A larger garden is to be made by increasing each side by the same amount. The resulting area is to be 1.5 times the original area. Find the dimensions of the new garden to the nearest tenth to answer.
Answer:
19.2 m and 28.2 mStep-by-step explanation:
Dimensions of a garden
Width = 15 mLength = 24 mSides increase = x
New area = 1.5 times of the original
Area
wl = 15*24 = 360 m²New area (w + x)(l + x)
(15 + x)(24 + x) = 360*1.5x^2 + 39x + 360 = 540x^2 + 39x - 180 = 0Positive root of the equation
x = 4.2 rounded to nearest tenthNew dimensions are:
15 + 4.2 = 19.2 m24 + 4.2 = 28.2 mWhat is the value of x, if the perimeter of the rectangle is 18?
This is the problem ;
When do they pay in jalepeno tree
Answer:
ever week or every two weeks
plz mark brainliest
