Answer:
per 100 pencils he looses $75
Step-by-step explanation:
If he sells 100 pencils at $1.75 he will make $175 which is less than the $250 he spent for the 100 pencils. So per 100 pencils he looses $75
The blue figure is rotated 90° counterclockwise around the origin and then reflected across the x-axis. In which quadrant will the transformed image be located?
The transformed image will be located in Quadrant III.
To solve this problem, we can think about what happens to the hour hand when it is rotated 90 degrees counterclockwise around the origin, and then reflected across the x-axis.
Rotation: When the hour hand is rotated 90 degrees counterclockwise around the origin, it moves to the position of the 3 o'clock hour. This means that the x and y coordinates of the tip of the hour hand are swapped. For example, if the tip of the hour hand was originally at (3, 4), after the rotation it would be at (4, 3).
Reflection: When the hour hand is reflected across the x-axis, its y-coordinate is multiplied by -1. This means that if the tip of the hour hand was at (4, 3) after the rotation, after the reflection it would be at (4, -3).
Now, let's look at the quadrants:
Quadrant I: x > 0, y > 0
Quadrant II: x < 0, y > 0
Quadrant III: x < 0, y < 0
Quadrant IV: x > 0, y < 0
Before the rotation, the tip of the hour hand is in Quadrant I, because both its x and y coordinates are positive.
After the rotation and reflection, the tip of the hour hand is in Quadrant IV, because its x-coordinate is still positive and its y-coordinate is now negative.
Therefore, the image will be in Quadrant III.
Need Help Please!!!!!!
pretty sure it’s the crickets because the others one does not make sense, crickets are known for jumping up and down a lot so i’m pretty sure it’s the cricket
Use the Exterior Angles Theorem to find the measure of each angle in degrees.
You have to begin by using the triangle sum therom. That means Angle DEC would be 64°, Angle D would be 76°, and angle C would be 40°
Theo starts with savings of £18
James starts with no savings
Each week from now,
Theo will save £4.50 and James will save £4
In how many weeks will Theo and James have savings in the ratio 15:8?
Answer:
6 weeks.
Step-by-step explanation:
Let x be the number of weeks to be found.
Then 4.5x + 18 / 4x = 15/8
Cross multiply:
36x + 144 = 60x
24x = 144
x = 6 (answer).
In approximately 1.67 weeks (or rounded to 2 weeks), Theo and James will have savings in the ratio 15:8.
Explanation:We can set up an equation to represent the savings of Theo and James over time. Let x be the number of weeks they have saved. Theo will have saved £4.50x and James will have saved £4x. We can set up the equation:
£4.50x / £4x = 15 / 8
Cross-multiplying the equation gives us:
8 * £4.50x = 15 * £4x
Simplifying the equation gives us:
36x = 60x
Dividing both sides by 36x gives us:
1 = 5 / 3x
Cross-multiplying again gives us:
3x = 5
Dividing both sides by 3 gives us:
x = 5 / 3
Therefore, in approximately 1.67 weeks (or rounded to 2 weeks), Theo and James will have savings in the ratio 15:8.
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GENERAL QUESTION for my next math class should i take pre-calc, or intergrated math. which one is easier and which one hasmore answers on here.
Because integrated math requires skills in trigonometry, I would highly recommend pre calc first
Answer:
I would say you first evaluate your strengths by checking on both the syllabuses. Find what really interests you, your passion. Is it pre-calculus or is it integrated math.
Ability and passion go hand in hand when it comes to the performance.
can help me with this please
Answer:
Step-by-step explanation: the answer is 1 because line a and b are paralel so 1 , 5 are the same as well as (2,7)
Answer:
angle 1
Step-by-step explanation:
this is because they are alternating angles.
fill in the missing exponents in each box & show reasoning (5^?)^3=5^1
the missing exponent would be 2
[tex]\bf (5^?)^{3}=5^1\implies 5^{?\cdot 3}=5^1\implies \stackrel{\textit{same base, the exponents must also be the same}}{?3=1\implies ?=\cfrac{1}{3}}[/tex]
Find the surface area of the prism.
Answer:
376
Step-by-step explanation:
2(8x10)=2(80)=160
2(10x6)==2(60)=120
2(6x8)=2(48)=96
160+120+96=376
Simplify (a + b )(a^2 - ab + b^2)
Answer:
a^3 + b^3
Step-by-step explanation:
(a + b )(a^2 - ab + b^2)
Distribute
a*a^2 -a*ab+a*b^2 + b*a^2 -b*ab +b*b^2
Simplify
a^3 -a^2b +ab^2 +a^2b -ab^2+b^3
Combining like terms
a^3 +b^3
Answer:
a^3 + b^3
Step-by-step explanation:
hope this helps you! have a good day/night :D
Solve the equation for a: ab – ac = d + e
Answer:
see explanation
Step-by-step explanation:
Given
ab - ac = d + e ← factor out a from both terms on the left side
a(b - c) = d + e ← divide both sides by (b - c)
a = [tex]\frac{d+e}{b-c}[/tex]
Answer:
Step-by-step explanation:
Need Help !!!!!!!!!!!!
Answer:
C
Step-by-step explanation:
The slope m of the functions give the measure of the rate of change.
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
g(x) = [tex]\frac{5}{2}[/tex] x - 3 ← is in slope- intercept form
with slope m = [tex]\frac{5}{2}[/tex] = 2.5
Calculate the slope of f(x) using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (0, - 3.5) and (x₂, y₂ ) = (1, - 1) ← 2 points from the table
m = [tex]\frac{-1+3.5}{1-0}[/tex] = 2.5
Hence
The slopes of g(x) and f(x) are both m = 2.5, thus
The functions increase at the same rate → C
match the expression please!!! 20 points
Answer:
r
0.15r
1.15r
Step-by-step explanation:
The problem states that r cm of rain fell on the garden on Thursday, so the first answer is:
The centimeters of rain on Thursday r
On Saturday, 15% more rain fell than on Thursday. The extra amount of rain on Saturday, as compared to Thursday is 15% of r. 15% of r is the same as 15% times r. 15% can be written as a decimal as 0.15, so 15% of r is the same as 0.15r. This is the answer to the second line.
How many more centimeters of rain fell on Saturday than on Thursday 0.15r
The amount of rain on Saturday is the amount of rain on Thursday plus the additional 15%. We already know that the additional 15% of rain is 0.15r. The total amount of rain on Saturday is r + 0.15r = 1r + 0.15r = 1.15r. That answers the third question.
The centimeters of rain on Saturday 1.15r
What is the function rule for the following situation? Rex paid $20 for a membership to the pool and pays $300 each time he goes to the pool
https://brainly.com/question/12669821
f(x)=20+300x
Also, Rex should find a different pool because that fee is ridiculous.
The function rule in the given situation is a linear function and can be represented as C=20+300x. In this rule, 'C' is the total cost in dollars, '20' is the initial membership fee, '300' is the cost of each pool visit and 'x' is the number of pool visits.
Explanation:The function rule in this situation is called a linear function. A function rule describes how to convert an input (in this case, the number of times Rex visits the pool) into an output (the total cost).
The function rule for this specific situation could be represented as C=20+300x, where 'C' is the total cost, '20' is the initial membership fee, '300' is the cost each time Rex goes to the couple, and 'x' is the number of times Rex goes to the pool.
So, each time Rex goes to the pool, you would multiply that number by 300 (the cost per visit), and then add 20 (the initial fee) to get the total cost.
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OFFERING A LOT OF POINTS. please write 2 or
more sentences and explain how you got the answer.
Alaska is the largest state in the United States. The state has an area of approximately 663,000 square miles. Rhode Island is the smallest state in the United States, with an area of approximately 1,000 square miles. Currently, the populations of Alaska and Rhode Island are 732,000 people and 1 million people, respectively. If Alaska had the same number of people per square mile as Rhode Island, what would its population be? In two or more sentences, explain your calculations and conclusions.
Answer:
Rhode Island has 1,000,000 people within an area of 1000 sq miles.....
1,000,000/1000 = 1000 people per sq mile
Step-by-step explanation:
If Alaska had the same number of people per square mile as Rhode Island, its population would be calculated as 663,000 mi^2 times 1,000 people = 663,000,000 people.
How do I solve each log equation
When subtracting logs you actually divide.
logx^2 = log 160 - log 2
logx^2 = log (160/2)
logx^2 = log 80
Now remove the log from each side:
x^2 = 80
x = √80
x = 4√5 and -4√5
David wants to build a rectangular fencing with the 5 identical parts for his animals. He has 780 feet of fencing to make it. What dimensions of each part will maximize the total enclosed area?
Answer:
65 ft by 39 ft
Step-by-step explanation:
Let x ft be the length of each part and y ft be the width of each part. The total perimeter of all 5 parts is
[tex]6x+10y=780[/tex]
The length of the large rectangle is 5y ft and the width of the large rectangle is x, so the total area is
[tex]A=x\cdot 5y[/tex]
From the first equation,
[tex]y=78-0.6x[/tex]
Substitute it into the area expression:
[tex]A(x)=x\cdot 5(78-0.6x)=390x-3x^2[/tex]
Find the derivative:
[tex]A'(x)=390-3\cdot 2x=390-6x[/tex]
Equate it to 0:
[tex]390-6x=0\\ \\6x=390\\ \\x=65[/tex]
Then
[tex]y=78-0.6\cdot 65=78-39=39[/tex]
can i have help this it is the picture below
Answer:
150 minutes, or 2 1/2 hours
Step-by-step explanation:
You want to know the time required to empty a pond with the given dimensions if the level drops 20 cm in the first 30 minutes of pumping.
Average depthThe average depth of the pond is the average of the depth at the shallow end and the depth at the deep end:
(0.6 m + 1.4 m)/2
= 2.0 m/2 = 1.0 m = 100 cm
If the level drops at the rate of 20 cm in 30 minutes, the time required for dropping the level by 100 cm is ...
t/(30 min) = (100 cm)/(20 cm)
t = 5·30 min = 150 min
The time to empty the pond completely is 150 minutes, or 2 1/2 hours.
__
Additional comment
As you know from the formula for the area of a trapezoid —
A = 1/2(b1 +b2)h
the area is equivalent to that of a rectangle with base equal to the average of the two base lengths.
Here, the volume of the pond is the product of the area of the trapezoidal face and the pond width (1 m). That trapezoidal face has an area equivalent to that of a rectangle 1 m high and 2 m wide. The 1 m height is the depth we used in the above calculation.
find the area of the trapezoid?
Answer: 52.5 units squared
Step-by-step explanation:
The formula to find the area of a trapezoid is, (base1 + base2)/2 * height
So you find out which variable is which
Base 1 = 4
Base 2 = 3
Height = 15
Then plug it into the formula,
(4+3)/2 * 15
Then solve the order of operations
7/2 * 15
3.5 * 15
52.5 is the answer
Answer:
52.5
Step-by-step explanation:
Formula
Area = (1/2) (a + b)*h
Givens
a = 4
b = 3
h = 15
Solution
Area = (4 + 3)*15/2
Area = 7 * 15/2
Area = 105/2
Area = 52.5
Liliana wants to start a seventh-grade computer club at Hamden Middle School. She surveyed 20 seventh-grade students at the town park. She asked each student how many hours they spend on their computers each week. She obtained the following results.
8, 15, 0, 11, 12, 13, 16, 13, 0, 4, 17, 14, 30, 13, 5, 12, 1, 13, 12, 21
What is the ratio of the total number of students who used their computers to the total number of students surveyed?
Answer:
Ratio would be 9 : 10
Step-by-step explanation:
Liliana surveyed 20 students that how many hours they spend on their computers each week.
The results are as follows
8, 15, 0, 11, 12, 13, 16, 13, 0, 4, 17, 14, 30, 13, 5, 12, 1, 13, 12, 21
In the above results 2 students did not use computers out of 20 students.
Therefore, The total number of students who used their computers = 20 - 2 = 18
So the ratio would be 18 : 20 or 9 : 10
Answer:
C. 18/20 or 9/10
The diagram shows the floor plan for Harry’s new tree house. The entry Terrance on the tree house is shaped like an isosceles trapezoid
The entry has an area of (blank) square feet the total area of the tree house is (blank) square feet
Answer:
The entry terrace has an area of
48
square feet. The total area of the tree house including the entrance, porch, and side deck is
350
square feet.
Step-by-step explanation:
I just took a test with this question and this was the right answer
~Please mark me as brainliest : )
what is the term that is used for the only number which is neither positive nor negative.
Answer:
Zero is neither positive nor negative integer and is known as origin.
If 1/2 of all the books at a bookstore are fiction and 3/5 of the books in fiction
are mysteries, what fraction of the store's books are fiction mysteries?
Answer:
[tex]\frac{3}{10}[/tex]
Step-by-step explanation:
we know that
To find the fraction of the store's books that are fiction mysteries, multiply 1/2 by 3/5
so
[tex](\frac{1}{2})(\frac{3}{5})=\frac{3}{10}[/tex]
choose the correct simplification of (x^2/y^5)^4
Answer:
x^8/y^20
Step-by-step explanation:
multiply the exponents by 4.
Find the volume of a cylinder with a 9-inch height and a 3-inch radius
(i = 3.14).
A. 35.36 cubic inches
B. 89.78 cubic inches
C. 169.56 cubic inches
D. 254.34 cubic inches
Answer:
D. 254.34 cubic inches
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2h
Where r = 3 in and h = 9 in
V = (3.14) * (3)^2 *9
V = 254.34 in ^3
Answer:
volume of a cylinder= \pi*r^2*h
81*pi
=254.34 in^3
What is the value of v in the equation 3(2v + 1)=-15(5v + 16)
Answer:
v = -3
Step-by-step explanation:
Step 1: Use the Distributive Property
6v + 3= -75v - 240
Step 2: Isolate v
81v = -243
Step 3: Simplify
v = -3
The value of v in the equation 3(2v + 1)=-15(5v + 16) is -3 after rearranging and solving.
What is linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have a linear equation in one variable:
3(2v + 1)=-15(5v + 16)
6v + 3 = -75v -240
6v + 75v = -240 - 3
81v = -243
v = -3
Thus, the value of v in the equation 3(2v + 1)=-15(5v + 16) is -3 after rearranging and solving.
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The principal P is borrowed at a simple interest rater for a period of time t. Find the loan's future value A, or the total amount due at timet. Round answers to the
nearest cent.
P - $7000, r = 7%, t = 6 years
The loan's future amount is $9940
What is simple interest?Simple interest is based on the principal amount of a loan or the first deposit in a savings account.The formula to calculate Simple interest is :
I=PRT
where,
I(interest money created)
P(initial amount of money)
R(interest rate as a decimal)
T(time in years)
How to find the loan's future value?Loan's future value will be principle amount + the net interest.I=7000(.07)(6)
I=$2,940
So, the loan's future amount = $7000 + $2940 = $9940
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Simplify the expression using long division. (10x2 – 85x – 10) ÷ (x – 8)
Answer: 5 • (2x2 - 17x - 2)
———————————————————
x - 8
Step-by-step explanation:
Step by step solution :
Step 1 :
Equation at the end of step 1 :
Step 2 :
10x2 - 85x - 10
Simplify ———————————————
x - 8
Step 3 :
Pulling out like terms :
3.1 Pull out like factors :
10x2 - 85x - 10 = 5 • (2x2 - 17x - 2)
Trying to factor by splitting the middle term
3.2 Factoring 2x2 - 17x - 2
The first term is, 2x2 its coefficient is 2 .
The middle term is, -17x its coefficient is -17 .
The last term, "the constant", is -2
Step-1 : Multiply the coefficient of the first term by the constant 2 • -2 = -4
Step-2 : Find two factors of -4 whose sum equals the coefficient of the middle term, which is -17 .
-4 + 1 = -3
-2 + 2 = 0
-1 + 4 = 3
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
50 points!!! please have serious answers
Use the data in the following table to answer the 3 questions below. Please show all calculations needed.
Daily Earnings $25 $26.50 $20 $23.50 $20
Find:
1: Median
2: Mean
3: Mode
PLEASE SHOW ALL STEPS
Answer:
Median: 23
Mode: $20
Mean: The average of numbers added up and then divided, equalling in 23
Plz help me with this
The minimum y-value is -7.
I'm only a few Brainliests away from ranking up, so one would be much appreciated.
Answer: A) -7
Step-by-step explanation:
The Asymptote is 1 so the range of the graph is from +1 to -1.
However, there is also a shift down of 6 units, so the range of the transformed graph is from (+1-6 = -5) to (-1-6 = -7).
Therefore, the maximum is -5 and the minimum is -7.
Solve the inequality statement:
4r – 5 < 5r+7
Answer:
r > - 12
Step-by-step explanation:
4r – 5 < 5r+7
4r - 5r < 7 + 5
-r <12
r > - 12 (when you multiply or divide a negative number, the sign will be flipped)
Answer:D
Step-by-step explanation: