Answer:
Express concentrations of solution components using mole fraction and molality
Describe the effect of solute concentration on various solution properties (vapor pressure, boiling point, freezing point, and osmotic pressure)
Perform calculations using the mathematical equations that describe these various colligative effects
Describe the process of distillation and its practical applications
Explain the process of osmosis and describe how it is applied industrially and in nature
Step-by-step explanation:
i helped
Between P.M. and A.M., the water level in a swimming pool decreased by 12/25 inches
. Assuming that the water level decreased at a constant rate, how much did the water level drop each hour?
Answer:
12/25
Step-by-step explanation:
Cookie recipe 3 1/2 cups sugar for every 2 1/6 cups flour. What’s the unit rate of cups of sugar to cups of flour?
How many cups of sugar would you need if you used 6 cups of flour?
helppppp pleaseeee ill literally do anything!!!!!!!!!!!!!!!
Answer:
33ft^2
Explanation:
surface area of square pyramid equation: [tex]A = a^2 + 2a\sqrt{\frac{a^2}{4} +h}[/tex]
A = 34.63, so none of the answers shown are really it.
8. Elijah has $2800.00. He gets a check for $300.00. He takes his mom out for dinner that costs $150.00. He finds$200.00 on Utopian Street, he then pays his friend Christian back $175, finally he pays his car insurance for $115.How much money does he have left?__________
Answer:
$2060
Step-by-step explanation:
2800+300-150-175-115= $2060
Answer:
2860
Step-by-step explanation:
2800+300-150+200-175-115=2860
At a sale this week, a suit is being sold for $357.20. This is a 62% discount from the original price.
What is the original price?
Answer:
$940
Step-by-step explanation:
100%-62%=38%
38%=357.20
1%=357.20÷38=9.40
100%=9.40x100=940
Hope this helps! Thanks.
If 5 pieces of steel bar each 6 1/2" long are welded together, how long will the new
bar be?
Find the value of the trigonometric ratio.
Answer:
SOHCAHTOA
cosA= adjacent
hypotunuese
cosA= 30
34
cosA= 30:34
cosA= 15:17
There are 95 students on a field
trip and 19 students on each bus.
How many buses of students are
there on the field trip?
Answer:
the answer is 5
Step-by-step explanation:
do 95 / 19 it will be 5 and do 19 x 5 it will be 95
Examine the following sequence 1, 4, 9, 16, 25.... Why is 36 the next number in the sequence? Because the pattern
is:
a. Add the next even number
Cube the number of the term, n
b. Square the number of the term, n
d. Add 2 + the number of the term, n
C.
Please select the best answer from the choices provided
А
B
ОООО
Save and Exit
Next
Submit
Mark this and return
Answer:
b
Step-by-step explanation:
1,4,9,16,25,36,...
we see every number is square of numbers .
every number can be represented by n²
1²=1
2²=4
3²=9
4²=16
5²=25
6²=36
A scale drawing of an office space uses a scale of 1 in : 4 yd. The scale drawing has an area of 12 square inches.The area of the office space is ____ square yards
The scale factor of area of the drawing to the area of the office is the
square of the scale factor of the length of the drawing.
The area of the office space is 192 square yards.Reasons:
The given parameters are;
1 inch in the scale drawing = 4 yd. in actual dimension
4 yd. = 144 inches
Therefore;
1 inch in the scale drawing = 144 inches in actual dimension
The scale factor of length of the drawing, s = 1:144
The scale factor of area = s²
Therefore, we have;
[tex]\dfrac{Drawing \ area}{Actual \ area} =s^2[/tex]Therefore, we have;
[tex]\dfrac{Drawing \ area}{Actual \ area} =\dfrac{12}{A} = s^2 = \left( \dfrac{1}{144} \right)^2[/tex]Where;
A = The actual office space area
There fore;
12 × 144² = A × 1²
A = 12 × 144² = 248,832 in.²
1 yd.² = 1,296 in.²
[tex]248,832 \, in.^2 = \dfrac{248,832}{1,296} \, yd.^2 = 192 \, yd.^2[/tex]The area of the office space is 192 square yards.
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(9 + r) – (r + 10) please help me simplifying
Write the equation of the parabola in vertex form.
vertex (3,3), point (2, - 1)
Step-by-step explanation:
The vertex form of a parabola is given by
[tex]y = a(x - h)^2 + k[/tex]
where (h, k) are the coordinates of the vertex of the parabola. So we can write our parabola as
[tex]y = a(x - 3)^2 + 3[/tex]
We know that our curve goes through the point (2, -1) so we can solve for the constant a as follows:
[tex]-1 = a(2 - 3)^2 + 3 \Rightarrow -1 = a + 3[/tex]
or
[tex]a = -4[/tex]
Therefore, the vertex form of the equation for the parabola is
[tex]y = -4(x - 3)^2 + 3[/tex]
Rewrite 4^-9 using a positive exponent.
Step-by-step explanation:
using a positive exponent
4^-9 = 1/ 4^9
__________
[tex] \: [/tex]
[tex] {a}^{ - m} = \frac{1}{ {a}^{m} } [/tex]
Step by step :[tex] {4}^{ - 9} = ...[/tex]
[tex] \longmapsto \frac{1}{ {4}^{9} } [/tex]
[tex] \longmapsto \frac{1}{4 \times 4 \times 4 \times 4 \times 4 \times 4 \times 4 \times 4 \times 4} [/tex]
[tex] \longmapsto \blue{ \frac{1}{262.144}} [/tex]
Find the surface area and volume of the basketball. Round your answer to the nearest hundredth.
Answer:
Surface area: 277.59 in^2
Volume: 434.89 in^3
Step-by-step explanation:
Radius = C/(2*pi)
29.5/3.14 = 9.39
Radius = 9.39/2 = 4.7 in
A = 4 pi r^2
A = (4) (3.14) (4.7)^2
A = 277.59 in^2
Volume = (4/3) (pi)(r)^3
(4/3)(3.14)(4.7)^3
= 434.89 in^3
Answer:
Surface area: [tex]277.59[/tex] in^[tex]2[/tex]
Volume: [tex]434.89[/tex] in^[tex]3[/tex]
Explanation:
Radius = C/([tex]2[/tex]*[tex]Pi[/tex])
[tex]29.5/3.14[/tex] = [tex]9.39[/tex]
Radius = [tex]9.39/2[/tex] = [tex]4.7[/tex] in
A = [tex]4[/tex] [tex]Pi[/tex] r^[tex]2[/tex]
A = ([tex]4[/tex]) ([tex]3.14[/tex]) ([tex]4.7[/tex])^[tex]2[/tex]
A = [tex]277.59[/tex]in^[tex]2[/tex]
Volume = ([tex]4/3[/tex]) (pi)(r)^[tex]3[/tex]
([tex]4/3[/tex])([tex]3.14[/tex])([tex]4.7[/tex])^[tex]3[/tex]
= [tex]434.89[/tex] in^[tex]3[/tex]
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The slope of Consider the line whose equation is 3x + y - 3 = 0. The slope of any line that is parallel to this line is any line that is perpendicular to this line is
Answer:
parallel : y = -3x + 3
perpendicular : y = 1/3x + 3
Step-by-step explanation:
rewrite 3x + y - 3 = 0
y = -3x + 3
parallel has the same slope
so
parallel : y = -3x + 3
perpendicular is negative reciprocal of the slope
so
-3x becomes 1/3x
so
perpendicular : y = 1/3x + 3
What is the inequality shown?
The Inequality shown here is :
[tex] - 3 \leqslant x < 2[/tex]Hey ! Can anyone help me with this question please ? Thank you
Answer:
7
Step-by-step explanation:
4x-13 = x + 8
3x = 21
x = 7
enjoy
X= $25,000
1,500+.2(x-10,000)
Answer:
x-525000+0
Step-by-step explanation:
Pa help pleas ineed po
Answer:
As shown in the attachment,
Step-by-step explanation:
refer to the attachment
In the standard (x,y) coordinate plane, point A has coordinates (–9,–1). Point A is translated 9 units to the right and 1 unit up, and that point is labeled A′. What are the coordinates of A′ ?
A.(-18,-2)
B.(-10,-10)
C.(-9,-2)
D.(0,0)
E.18,2)
Translation involves changing the position of a point in the coordinate plane.
The coordinate of the translated point A' is (D) (0,0)
The coordinate of the point is given as:
[tex]A = (-9,-1)[/tex]
The rule of translation 9 units right, and 1 unit up is:
[tex](x,y) \to (x+9,y+1)[/tex]
So, we have:
[tex]A' = (-9+9,-1+1)[/tex]
Simplify the expression
[tex]A' = (0,0)[/tex]
Hence, the coordinate of the translated point A' is (D) (0,0)
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If the coordinate is translated 9 units right and 1 units up, the resulting coordinate will be at (-9 + 9, -1 + 1) which is A'(0, 0). Option D is correct
Given the coordinate point A (x, y), if the coordinate is translated a unit right and b units up, the resulting coordinate will be at (x + a, y + b)
Note that both values are added to the coordinate points.
Given the coordinate point A (-9, -1), if the coordinate is translated 9 units right and 1 units up, the resulting coordinate will be at (-9 + 9, -1 + 1) which is A'(0, 0)
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i need step by step explaniton. judy has $3,024 dollars in her bank account she is planning to spend this money on buying tickets to disney world for her and 11 of her friends. two of judy's friends decided to help but the tickets and offered her $1,00 each. how munch did each ticket cost. (round the answer to the nearest whole number) this is a long divison problem.
Answer:
uhh judy has $3.024 in her bank acc
She is buying tickets for 11 friends and including herself too that means 12
Two friends decided help to buy the tickets and offered $100 each i.e $200
So I'm guessing that the cost price of one ticket is $100
Now than since 2 people paid their ticket cost than that means only 10 people left
Than for buying tickets for 10 people would cost (10×100=1000)
So I guess buying the tickets cost 1000 or if we add other two people's cost than that makes 1200
An object is moving at a speed of 6 inches every 4.5 days. express this speed in yards per year
Answer:
365/27 yards per year
Step-by-step explanation:
[tex]\frac{6 inches}{4.5 days}[/tex] × [tex]\frac{1 yard}{36 inches}[/tex] ×[tex]\frac{365 days}{1 year}[/tex] = [tex]\frac{(6(365)) yards}{(4.5(36)) year}[/tex] = [tex]\frac{2190 yards}{162 years}[/tex]= 365/27 yards per year
Given Number A = -2 and Number B = -1 1. What is the abolsute Value of A 2. What is the absolute Value of B
Answer:
answer A= 2 answer b = 11
Step-by-step explanation:
my teachers said cancel out the negatives
I want to eat and bought a hamburger a bag of chips and a drink all the chips cost $1.25 gave the cashier $20 and received $14.39 in how what did the drink cost
Are 6/9 and2/3 proportion
Answer:
yes, they are proportional
Step-by-step explanation:
6/9 is just three time as big as 2/3 but they are basically the same fraction
Answer:
Step-by-step explanation:
yes, it is proportional
6/9 = 2/3
18 = 18
please help w my khan acc
Answer:
y=2x+4
Step-by-step explanation:
When X is at 0 Y is 4 so you add four at the end and then you backtrack it and get 2x+4.
Hope it helps
Elisa owns 28% of the Grudman Corporation. The rest of the shares are owned equally by the remaining six shareholders. What percent of the corporation does each of the other shareholders own?
Answer:
12%
Step-by-step explanation:
each shares 12% because 100-28=72
72÷6=12%
Question 3
1 pts
Find the unit rate. Round to the nearest hundredth, if necessary.
$32.05 for 15 gal
Question 4
1 pts
Answer:
$2.14 per gal.
Step-by-step explanation:
32.05/15 = 2.137 per gal
Choose the system for the graph
The answer will be A
The table shows the cost of taking a rideshare trip. Which description correctly reflects the way the charges are calculated?
A)
The ride requires a $14 initial fee, plus 50 cents per mile driven
B
The ride requires a $14 initial fee, plus 51.90 per mile driven
The ride requires a $14 Initial fee, plus 52.15 per mile driven
D
The ride requires a 514 initial fee, plus 52.50 per mile driven
The table is an illustration of a linear function.
The description of the charges is: A) The ride requires a $14 initial fee, plus 50 cents per mile driven
The base fee is the charges, when the number of miles is 0
From the table;
y = $14, when x = 0
So, the base fee is $14
Next, we calculate the slope (m)
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
From the table, we have:
[tex]m = \frac{16.5 - 14}{5-0}[/tex]
[tex]m = \frac{2.5}{5}[/tex]
[tex]m = 0.5[/tex]
The above means that:
The cost per mile is $0.5 (i.e. 50 cents)
Hence, the description of the charges is: A) The ride requires a $14 initial fee, plus 50 cents per mile driven
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