Ths solubility curve can be used to obtain the amount of salt dissolved (solubility).
What is the solubility curve?The solubility curve is a plot of the solubility of a substance against the temperature. It serves the purpose of being used to show the solubility of a susbtance at different temperatures. This question is incomplete hence we can not be able to deduce the solubility of the salt at this temperature.
If the solubility curve has been ploted, then we can be able to estimate the solubility of the salt from the graph.
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Gavyn, Pip and Mark share £102 in a ratio 1:2:3. How much money does each person get?
Answer:
see explanation
Step-by-step explanation:
sum the parts of the ratio , 1 + 2 + 3 = 6 parts
divide the amount by 6 to find the value of one part of the ratio
£102 ÷ 6 = £17 ← value of 1 part of the ratio , then
2 parts = 2 × £17 = £34
3 parts = 3 × £17 = £51
Gavyn gets £17
Pip gets £34
Mark gets £51
When 3010 adults were surveyed in a poll, 22% said that they use the Internet. Is it okay for a newspaper reporter to write that "1/4 of all adults use the
Interer? Why or why not? Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion
that addresses the original claim. Use the P-value method. Use the normal distribution as an approximation of the binomial distribution
Identify the null and alternative hypotheses. Choose the correct answer below.
Hypotheses:
H₀: p = .25
Hₐ: p ≠ .25
Conditions:
Random sample NOT stated -- proceed with caution!Normality: 3010(.22) = 662.2 ≥ 10 and 3010(1 - .22) = 2347.8 ≥ 10 Independence: 3010(10) = 30100 < all adults (reasonable to assume)Test statistic:
[tex]\displaystyle z = \frac{.22-.25}{\sqrt{\frac{(.25)(.75)}{3010} } } \\ \\ \\ z = \frac{-.03}{.00789} \\ \\ \\ \boxed{z = -3.8011}[/tex]
Conduct the two-tailed test to calculate the area corresponding to the positive and negative z-score.
The p-value for the lower tail is .00007205. Multiply this by two to get the area for both tails:p = .0001441Conclusion:
Since p = .0001441 < α = .05, we reject the null hypothesis. There is convincing statistical evidence that the true proportion of adults that use the internet is not equal to .25.
Please help me!!!
Prove that :
7.1 TS is a tangent to the cyclic quadrilateral RSPD at point S.
7.2 TW ||PS
Explanation:
The various theorems involved include ...
angle sum theorem (angles in a triangle total 180°)alternate interior angles theorem (said angles are congruent)inscribed angle theorem (and "alternate")angle addition postulateFor the purpose here, we wll use the notation D.1 to refer to the angle labeled "1" at vertex D.
The argument goes something like the following.
__
∠D.1 +∠R +∠S.1 = 180° . . . . angle sum theorem
∠S.1 +∠S.2 +∠S.3 +∠S.4 = 180° . . . . angle addition postulate (∠RSW is a straight angle, equal to 180°)
∠D.1 +∠R +∠S.1 = ∠S.1 +∠S.2 +∠S.3 +∠S.4 . . . . substitution property
∠D.1 = ∠S.2 . . . . alternate interior angles theorem
∠S.2 +∠R +∠S.1 = ∠S.1 +∠S.2 +∠S.3 +∠S.4 . . . . substitute for ∠D.1
∠R = ∠S.3 +∠S.4 . . . . subtraction property (subtract ∠S.1 +∠S.2)
∠R = ∠S.3 +∠S.2 . . . . substitute ∠S.2 for equal ∠S.4 (given)
∠R = arc DS/2 . . . . inscribed angle is half the arc measure
∠TSD = ∠S.2 +∠S.3 = arc DS/2 . . . . substitution, angle addition, angle naming
TS is tangent at S . . . . converse of "inscribed angle alternate" where the vertex of an inscribed angle is a point of tangency
_____
Additional comment
The alternate to the inscribed angle theorem says the angle is half the measure of the intercepted arc even as the vertex of the inscribed angle becomes a point of tangency (one ray of the angle is a tangent, so a zero-length chord). The converse of this says the vertex is a point of tangency if the intercepted arc is twice the measure of the angle, as in this problem.
answer please hfghfg
Answer:
it is D 6 x 10,000+3x 1000+9 x100 +1 x10 +4 x1 +2 x0.1 +5 x0.01
Step-by-step explanation:
hope this helps pls makes as brainliest
M is the midpoint of LN, LM = 2x + 10, and MN = 4x - 2, what is LM?
Answer:
LM=22
Step-by-step explanation:
Check out the attached photo
Please help me, I don't understand this-
Ms. Martin's new truck weighs 2 tons. 2 Which measurement is equivalent to the weight of her truck? F 2.500 pounds H 4,500 pounds G 6,000 pounds J 5,000 pounds
Answer:
i think its J 5,000 pounds
Step-by-step explanation:
PLEASE HELP ME!!!
Question 1 Part D (2 points): Which of the following is NOT an example of the closure property as it relates to polynomials?
A.
(x + 2)(2x - 1) = 2x² + 3x - 2
B.
(x³ - x² + 4) - (2x² + 5) = x³ - 3x² - 1
C.
(2x)(0) = 0
D.
(2x³ - x² - 5x + 4) + (x³ - 2x² + 1) = 3x³ - 3x² - 5x + 5
E.
None of the above because all are examples of the closure property as it relates to polynomials
None of the above because all are examples of the closure property as it relates to polynomials.
Closure property of the functionA function is known to be closed if its input value is equal to its output.
Accordng to the question, we need to select the function that obeys the law of closure.
To select the correct polynmials, we need to determine the function that has its left hand side equal to the right.
From the given options,we can see that all their right hand sides are equal to the left, hence we can conclude that "none of the above because all are examples of the closure property as it relates to polynomials"
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please help me Find the value of x .
Answer: x=6
Step-by-step explanation:
3x+2+2x-2
/2
=15
Arjun and Jasmine are selling flower bulbs for a school fundraiser. Customers can buy bags of windflower bulbs and bags of daffodil bulbs. Arjun sold 4 bags of windflower bulbs and 14 bags of daffodil bulbs for a total of $252. Jasmine sold 8 bags of windflower bulbs and 6 bags of daffodil bulbs for a total of $152. What is the cost each of one bag of windflower bulbs and one bag of daffodil bulbs?
A.
bag of windflower bulbs: $9, bag of daffodil bulbs: $20
B.
bag of windflower bulbs: $7, bag of daffodil bulbs: $16
C.
bag of windflower bulbs: $9, bag of daffodil bulbs: $18
D.
bag of windflower bulbs: $4, bag of daffodil bulbs: $21
Answer: D
Step-by-step explanation: im pretty sure its d because 21 is the right awnser let me know if im wrong hope it helps
Find the square root of 2937.44 by the arithmetic method
The square root of 2937.44 by the arithmetic method is 54.20.
What is the square root of the number?
The square root of a number can be described as the value derived when a number is divided into two equal halves. The square root of 64 is 8. This is because 8 multiplied by 8 is equal to 64. The sign used to represent square root is √.
√2937.44 = 54.20
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6. The angles of triangle ABC measure 30 degrees, 40 degrees, and 110 degrees. Will
its circumcenter fall inside the triangle, on the triangle, or outside the
triangle? Explain your reasoning.
Answer: Outside the triangle
Step-by-step explanation:
Because one of the angles has a measure greater than 90 degrees, we know that the triangle must be obtuse. Therefore, the circumcenter must fall outside the triangle because in an obtuse triangle, the circumcenter is always located outside of the triangle.
Find the value of the expression 4d divided by c +3 when c=3 and d = 6
[tex]\text{Given that, c=3, d=6}\\\\\dfrac{4d}{c+3} = \dfrac{4(6)}{3+3} = \dfrac{4(6)}6 = 4[/tex]
- If the difference of 15 and a number is 5, what is the number?
Answer:
The difference of 15 and a number is 5 indeed 10 to be 15
Answer:
10
Step-by-step explanation:
why does a week have seven days
Hi!the week has seven days because the Babylonians, who lived in modern-day Iraq, were astute observers and interpreters of the heavens, and it is largely thanks to them that our weeks are seven days long. The reason they adopted the number seven was that they observed seven celestial bodies — the Sun, the Moon, Mercury, Venus, Mars, Jupiter and Saturn.
the main reason is :
Avid astronomers and astrologers, the developed a kind of horoscope around 500 where each day of the week was assigned to one of the classical planets – the seven celestial bodies visible to the eye. These are the Sun, the Moon, Mars, Mercury, Jupiter, Venus, and saturn
What is the equation of the line that passes through the point(6,-2) And has an undefined slope
Answer:
X=6
Step-by-step explanation:
Anna took a job that paid $100 the first week she qaa guaranteed a raise of 5% each week how much money will she make in all over 8 weeks round the answer to the nearest cent
Answer:
140.71
Step-by-step explanation:
WEEK 1- 100
WEEK 2- 105
WEEK 3-110.25
WEEK 4-115.7625
WEEK 5-121.550625
WEEK 6-127.62815625
WEEK 7-134.009564063
WEEK 8-140.710042266
By using an exponential equation, we will see that in the first 8 weeks she makes $954.90.
How much will she make in 8 weeks?
We know that the first week she makes $100, and for each week after that, she makes an extra 5%.
Then, the second week she makes:
W(2) = $100*(1 + 5%/100%) = $100*(1.05)
The third week she makes:
W(3) = $100*(1.05)*(1 + 5%/100%) = $100*(1.05)^2
We already can see the exponential pattern, for the N-th week, the salary will be:
W(N) = $100*(1.05)^(N - 1)
Then what she wins in the first 8 weeks is:
W(1) = $100W(2) = $100*1.05 = $105W(3) = $100*(1.05)^2 = $110.25W(4) = $100*(1.05)^3 = $115.75W(5) = $100*(1.05)^4 = $121.55W(6) = $100*(1.05)^5 = $127.63W(7) = $100*(1.05)^6 = $134.01W(8) = $100*(1.05)^7 = $140.71Now we just need to add these 8 values, we will see that the total money that she makes in these 8 weeks is:
M = $954.90
If you want to learn more about exponentials, you can read:
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is 25 fl oz greater than, less than, or equal to 1 pint?
Answer needs to be RIGHT, to be brainliest
Answer:
greater than
Step-by-step explanation:
there is 16 fl oz in a pint so 25>16
can somebody help me please
Answer:
35, 13, 1, -1, 7
Step-by-step explanation:
Repeated evaluation of the same function is accomplished easily by a calculator or spreadsheet. It is a good idea to become familiar with this technology.
__
If you're doing this by hand, writing the equation in Horner form can make it easier to evaluate.
f(x) = (5x -7)x +1
Then ...
f(-2) = (5(-2) -7)(-2) +1 = (-17)(-2) +1 = 34 +1 = 35
f(-1) = (5(-1) -7)(-1) +1 = (-12)(-1) +1 = 12 +1 = 13
f(0) = 1 . . . . the constant term
f(1) = (5(1) -7)(1) +1 = (-2)(1) +1 = -2 +1 = -1
f(2) = (5(2) -7)(2) +1 = (3)(2) +1 = 6 +1 = 7
In order, the f(x) values are 35, 13, 1, -1, 7.
Write the equation for the function graphed attached
f(x)=
Answer:
here
Step-by-step explanation:
If UVWX is a parallelogram, what iS the value of y?
The left and right sides need to be the same to be a parallelogram .
15 = 1/4y
Divide both sides by 1/4
Y = 60
Answer: B. 60
Answer:
its 60
Step-by-Step Explantion:
These are so hard I’m not sure how to do them :((
Answer:
8 out of 52
or
4 out of 26
Step-by-step explanation:
So you have a 52 deck of cards there are:
Number 6 cards = 4
Number 10 cards = 4
there is a 8 out of 52 chance of you pulling a 6 or 10 card
or (simplify)
4 out of 26 chance
~Denki Kaminari here~
here, this may help you on how to solve probability:
A probability is a number that reflects the chance or likelihood that a particular event will occur. Probabilities can be expressed as proportions that range from 0 to 1, and they can also be expressed as percentages ranging from 0% to 100%
The best example for understanding probability is flipping a coin: There are two possible outcomes—heads or tails.
What’s the probability of the coin landing on Heads? We can find out using the equation P(H) = ?P(H)=?P, left parenthesis, H, right parenthesis, equals, question mark.You might intuitively know that the likelihood is half/half, or 50%. But how do we work that out? Probability = one chance that it we can calculate/ one chance on pure probability
Formula for calculating the probability of certain outcomes for an event
Formula for calculating the probability of certain outcomes for an event
In this case:
Probability of a coin landing on heads
Probability of a coin landing on tails
Probability of an event = (# of ways it can happen) / (total number of outcomes)
P(A) = (# of ways A can happen) / (Total number of outcomes)hope this helps :D
MUTUALLY OR NOT MUTUALLY EXCLUSIVE EVENTS?
Answer:
All are not mutually exclusive events
Each month, Edward budgets $1860 for fixed expenses, $860 for living expenses
and $250 for annual expenses. His annual net income is $32,508.
Which statement best describes his monthly budget?
Answer:
His annual net income.
Step-by-step explanation:
Hope it helps.
The graph of the relation H is shown below.
Give the domain and range of
H
Write your answered using set notation
Using the concepts of domain and range, it is found that:
The domain of the relation is {-1, 2, 3, 4}.The range of the relation is {-1, 0, 2, 4}.What are the domain and range of a relation?The domain of a function is the set that contains all possible input values. On a graph, it is given by the values of x.The range of a function is the set that contains all possible output values. On a graph, it is given by the values of y.In this graph, the points represented are given by: {-1, 2}, {2,0}, {3,-1} and {4,4}. Hence:
The domain of the relation is {-1, 2, 3, 4}.The range of the relation is {-1, 0, 2, 4}.More can be learned about the concepts of domain and range at https://brainly.com/question/10891721
Find the measure of each angle in the isosceles trapezoid.
Answer:
R = 98 degree
Q = 82 degree
T = 98 degree
In Finland UK the elevation from sea level is -4 m in San Diego US it is +40 feet the elevations are given in different units explain how to tell which location has a greater division
San Diego, US has a greater elevation
Step-by-step explanation:[tex]-4m < +40\%[/tex]
[tex]\&\ positive\ numbers\ are\ always\ greencer\ than[/tex]
[tex]negative\ numbers?[/tex]
[tex]So\ San\ Diego,\ US\ has\ a\ greater\ elevation[/tex]
I hope this helps you
:)
Which shapes show equivalent fractions?
A.shapes A and B
B.shapes A and C
C.shapes B and C
D.shapes C and D
What is the approximate area of the shaded region?
Answer:
383 cm²
Step-by-step explanation:
⇒ Area of the figure = Area of the circle - Area of the 5-sided polygon (pentagon)
Finding P (Perimeter of the Pentagon)
P = 5(21.2)P = 106 cmFinding Area
A = πr² - 1/2PaA = 3.14 x (19.8)² - 1/2 x 106 x 16A = 3.14 x 392.04 - 53 x 16A = 1231.0056 - 848A = 383.0056 ≅ 383 cm²KellyConnect
Cameron Moore
Customer: "I just purchased 9 products from you at $44.00 each. I just realized my
company offers a 20% discount on all of your products. Can you tell me what my new
total should be?"
Answer:
$316.8
Step-by-step explanation:
9 x 44 = 396
396 × 0.80 = $316.8
or
396 * 0.20 = 79.2
396 - 79.2 = $316.8
could someone help me super duper fast with factoring trinomials
my previous questions are worth 50 each by the way
Answer:
(3a+3b+1)(2a+2b+3)
Step-by-step explanation:
This is the farthest they could be factored
#1
6(a+b)²+11(a+b)+3Let a+b=x
6x²+11x+36x²+2x+9x+32x(3x+1)+3(3x+1)(2x+3)(3x+1)Put value
(2(a+b)+3)(3(a+b)+1)#2
8(x+1)²-14(x+1)+3Let x+1=y
8y²-14y+38y²-2y-12y+32y(4y-1)-3(4y-1)(2y-3)(4y-1)Put value
(2(x+1)-3)(4(x+1)-3)