22 ml of rboh is titrated with 35 ml of 0.9 m hf. The concentration of the base is 1.43M.
What is titration?Titration is a method of chemical analysis in which the amount of a sample's ingredient is determined by adding an exact known amount of a different substance to the measured sample in which the desired constituent interacts in a specific, known proportion. Titrating reagent, or titrant, is often added to a standard solution (i.e., a solution of known concentration) using a burette, which is essentially a long, graduated measurement tube with a stopcock and a delivery tube at its bottom end. When the equivalence point is achieved, the addition is terminated.
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triangle mno is shown. which triangle can be shown to be congruent to triangle mno with only the given information? explain your reasoning.
Answer: triangle 4 MNO≅JKL
Step-by-step explanation:
4. (03.01)
Is the following relation a function? (1 point)
Yes
No
[tex]{ \qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
No, The given relation isn't a function.
[ For a relation to be a function, every value that lies in the domain ( set A ) should have only one corresponding value in its Range ( set B ) but here, -1 has two corresponding values that are : (-1) and (2) ]
Therefore, conclusion can be made that the given relation isn't a function.
Answer:
Not a function.
Step-by-step explanation:
Functions
A function is a special type of relation where each input (x-value) has a single output (y-value).
One-to-one: Each value in the range (y-values) corresponds to exactly one value in the domain (x-values).Many-to-one: Some values in the range (y-values) correspond to more than one (many) value in the domain (x-values).The given function is not a function as the input value of x = -1 has multiple output values of y = 2 and y = -1.
Three red cards are numbered 1, 2, and 3 and the other three green cards are also numbered 1, 2, and 3. All of them are in a box. Randomly pick 2 cards one by one with returning before the second pick. Find the probability that they have the same number or the same color.
Answer:
Step-by-step explanation:
According to the information, first pick with returning make the question easy, it means that fist pick and second pick are independent events, we want to calculate the probability of same number or same color so 'or' means the addition method in statistics, from above second card has same number or same color decide the probability, not the first picked card,
P = P(same number) + P(same color) = 1/3 + 1/3 = 2/3
Or you can draw a tree diagram
Express 80 as the product of its prime factors.
Write the prime factors in ascending order.
Answer:
the answer of that is 16 x 5
Step-by-step explanation:
hi everyone
10x -20y =
Answer:
[tex]10\left(x-2y\right)[/tex]
Step-by-step explanation:
[tex]-20 = 2\cdot \:10\\=10x+2\cdot \:10y\\=10\left(x-2y\right)[/tex]
Steps
• -20 gets converted to 2 × 10
• -20 in its new form is put into the rewritten equation.
• 10 was factored out, because it is the most common term in this equation.
Find the midpoint of FG given F(2, -6) and G(-8, 10)
the midpoint of FG given F(2, -6) and G(-8, 10) = (-3,2)
Solution :
The midpoint calculator will take two coordinates in the Cartesian coordinate system and find the point directly in-between both of them. This point is often useful in geometry.
1. Label the coordinates(x₁,y₁) and (x₂,y₂).
2. Input the values into the formula.
3. Add the values in the parentheses and divide each result by 2.
4. The new values form the new coordinates of the midpoint.
f we have coordinates (x₁,y₁) and (x₂,y₂), then the midpoint of these coordinates is determined by (x₁ + x₂)/2, (y₁ + y₂)/2. This forms a new coordinate you can call (x,y).
Given :
F(2, -6) and G(-8, 10)
FG= (-8+2)/2,(-6+10)/2
FG= (-6/2,4/2)
FG=(-3,2)
the midpoint of FG given F(2, -6) and G(-8, 10) = (-3,2)
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The area of an animal pen is 30 square feet. what are the legnths of the pen's sides if the pen has each given shape?
L = 1.3245 is the legnths of the pen's sides .
What is area and perimeter?
Perimeter is the distance around the outside of a shape. Area measures the space inside a shape.
The equation for perimeter is 2L + W = 30 ( I'm assuming that the shed takes up one of the Widths, but you can use the Length if you want, it doesn't matter.)
So W = 30 - 2L.
Area = L x W = L (30 - 2L) = 30L - 2L^2.
This is a quadratic equation, easily graphed as a parabola, with a maximum point at L = 1.3245 .
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solve the following below
6 3/5 + 4 1/2
A hairdresser is making 6 hair bows. She needs 5 over 8 yards for each bow. If she has 8 and 1 over 2 yards of ribbon, how much will be left over after making the bows?
three and one over eight yards
four and three over four yards
six and three over four yards
sixteen and seven over ten yards
Answer:
4 and 3 over 4 yards
Step-by-step explanation:
Four less than a number is tripled. The result is 15. Which of the following equations properly models this information.
Four less than a number is tripled. The result is 15. Equations properly models this information is x - 9.
When you need to multiply the supplied number by the sum of the two numbers, you apply the distributive property. Following the order of operations in such situations often entails adding the numbers first, followed by multiplying them by the specified quantity.
Based on the given condition formulates = 3 (z - 4) = 15
Applying the distributive property 3z - 12 - 15
Rearrange variables to the left side of the equation 3z - 15 + 12
Calculate the sum of difference 3z- 27
Divide both sides of the equation by the coefficient of variable w = 27/3
Cross out the common factors : x - 9
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Scores
16
18
12
8
20
Find this student's median quiz score
Answer:
In ascending order:8,12,16,18,20
Step-by-step explanation:
median=?
N=5
now
median =(N±1/2)th item
=(5±1/2)th item
(6/2)th item
=3rd item
so median quiz score is 16
Hope its helpful for you
Evaluate the expression when m = 5 and n = 38
N-6m
An expression is a set of terms combined using the operations +, -, x or ÷, for example 4 x − 3 or 5 x 2 − 3 x y + 17 . An equation is a statement with an equals sign, which states that two expressions are equal in value, for example 4 b − 2 = 6
An equation is a mathematical statement that is made up of two expressions connected by an equal sign. For example, 3x – 5 = 16 is an equation. Solving this equation, we get the value of the variable x as x = 7.
50
6m-n
Let m = 9 and n = 4
when m = 5 and n = 38
N-6m6*9-4
Multiply first
54-4
Then subtract
50
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Use prime factorization to determine the greatest common factor of 180 and 504
Answer: 36
Step-by-step explanation:
First you plot down all the factors of 180.*
*180 1, 90 2, 60 3, etc.
Then you do the same for 504.*
*504 1, 252 2, etc.
Once you do that you look through and find the common factor, and you'll find that 180/5=36, and 504/14=36, finding you your GCF.
Can someone help me on problems 4-6 pls
From the question, the first table is not a function while the other two tables are functions.
How to Identify a Function?
A function is a correspondence or mapping from a first set of numbers, called the domain of the function, to a second set of numbers, called the range of the function, such that for each member of the domain there is exactly one member of the range.
A function is said to be one-to-one if every y value has exactly one x value mapped onto it, and many-to-one if there are y values that have more than one x value mapped onto them. This graph shows a many-to-one function.
4) We see that all the y-values are the same or equal. Thus, we can say that it is not a function because it doesn't match the definition above.
5) Yes the table describes a function because all input values produces a unique output y-value.
6) Yes, the table represents a function because all input values produces a unique output y-value.
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3/2x - 2/3x =2
Find x
The value of x by simplified the given equation is 5/12.
By considering the given equation
3/2x - 2/3x =2
We are finding the value of x by simplify it.
(9-4)/6x=2
5/6x=2
5=12x
x=5/12
To simplify simply means to make anything easier. In mathematics, simplifying an equation, fraction, or problem means taking it and making it simpler. Calculations and problem-solving techniques simplify the issue.
If a fraction's top and bottom share only one additional common factor, it is said to be in its simplest form. In other words, the top and bottom cannot be divided further and remain full numbers. Simplest form is also referred to as "lowest words."
The reduced form of a fraction is another name for its most basic form. For instance, the simplest representation of a fraction with a common component of 1 is 34 The simplest form, however, is not 2/4 because 12 is a further simplification of 2/4 that can be written.
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If a lawnmower has a cost price of $2500 and was sold for $2895 what is the percentage profit
The profit percentage for the lawn owner is 15.8%
Profit Percentage:
Profit means, if the selling price of a product is more than its cost price, there is a profit earned in the transaction.
So, it can be calculated as,
Profit = Selling Price - Cost Price
The formulas for profit percentage is,
Profit percentage(P%) = (Profit /Cost Price) × 100
Given,
Here we need to find the profit percentage, If a lawnmower has a cost price of $2500 and was sold for $2895.
Based on the question,
We know that,
Cost Price = $2500
Selling Price = $2895
So, the profit is,
profit = $2895 - $2500
profit = $395
Now, the profit percentage is calculated by apply the values on the formula,
profit percentage (P%) = (395/2500) x 100
Therefore,
P% = 395/25
P% = 15.8%
Therefore, the profit percentage for the lawn owner is 15.8%.
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Solve for x.
(x+40)°
(3x-17)
(2x-5)
Answer:
x = 27
Step-by-step explanation:
All angles in a triangle add up to 180 degrees
180 = (3x - 17) + (x + 40) + (2x - 5)
Combine like terms.
180 = 6x + 18
Subtract 18 from both sides.
162 = 6x
Divide both sides by 6.
x = 27
If A, B, C, and D are collinear, then
they lie in the same plane. A, B, C,
and D lie in the same plane.
If BD bisects ABC, then D lies in
the interior of ABC. D lies in the
interior of ABC.
The hypothesis of both statements are false.
How to Interpret Collinear Points?1) Collinear points are the points that lie on the same straight line or in a single line. If two or more than two points lie on a line close to or far from each other, then they are said to be collinear,
Thus, if A, B, C, and D are collinear, then they cannot lie in the same plane.
Thus, the hypothesis is not true.
2) When we bisect an angle, it is possible that one of the endpoints of the line may be outside the interior of the bisected angle. Thus, the hypothesis is Not true.
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Arianys wants to ride her bicycle 55.5 miles this week. She has already ridden 19 miles. If she rides for 5 more days, which equation could be used to determine, m, the average number of miles she would have to ride to meet her goal? A. 19m = 55.5 - 5 B. 5m = 19 - 55.5 C. m = 55.5-19/5 D. 55.5 = 19m + 5
The equation that could be used to determine, m, the average number of miles she would have to ride to meet her goal is; m = (55.5 - 19)/5
How to Solve Algebra Word Problems?
Distance that she wants to ride this week = 55.5 miles
Distance she has already ridden so far = 19 miles
Now, we are told that she will ride 5 more days.
If m is the average number of miles she has to ride to meet her goal, then we can say that;
5m + 19 = 55.5
Making m the subject by, we have;
m = (55.5 - 19)/5
Thus, the equation that could be used to determine, m, the average number of miles she would have to ride to meet her goal is;
m = (55.5 - 19)/5
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A truck can be rented from Company A for $90 a day plus $0.30 per mile. Company B charges $70 a day plus $0.40 per mile to rent the same truck. Find the number of miles in a day at which the rental costs for Company A and Company B are the same.
Five girls entered the pass, kick,
and punt competition. Below is how
far they threw the football
Kim 23.8 yds.
Julia
40 yds,
Trisha 38.94 yds.
Dianne 28.2 yds,
What is the combined total length for the 4 girls
Answer:
130.94
Step-by-step explanation:
'Combine' I assume is to add so here's the answer!
23.8+40+38.94+28.2= 130.94
The black graph is the graph of y=f(x)
A student believes there is a correlation between the number of texts sent during class and GPA. The student collected data and found that the line of fit can be modeled by the equation ŷ = 3.6 − 0.3x.
Identify and interpret the slope in this scenario.
The slope is −0.3. Starting at 3.6, the GPA will increase by 0.3 for every text sent in class.
The slope is −0.3. Starting at 3.6, the GPA will decrease by 0.3 for every text sent in class.
The slope is 3.6. Starting at 0.3, the GPA will increase by 3.6 for every text sent in class.
The slope is 3.6. Starting at 0.3, the GP will decrease by 3.6 for every text sent in class.
Using linear function concepts, the correct option is given by:
The slope is −0.3. Starting at 3.6, the GPA will decrease by 0.3 for every text sent in class.
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.For this problem, the function is:
y = 3.6 - 0.3x.
The function has a initial GPA of 3.6(student who sends 0 texts), then for each text the student sends, the GPA falls by 0.3(slope of -0.3), hence the correct option is:
The slope is −0.3. Starting at 3.6, the GPA will decrease by 0.3 for every text sent in class.
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Assuming a 5-point difference between the two sample means, which set of sample characteristics is most likely to produce a significant value for the independent-measures t statistic?
A large mean difference and small sample variances. The correct option is B.
What are sample statistics?A statistical measure known as the effect size () assesses the magnitude of the link (numerically) between two variables. The difference between the weights of male and female candidates, for instance, is known as the effect size. If we obtain information on the weights of male and female candidates and discover that men are, on average, heavier than women, for example.
The weight difference between men and women will increase as the effect size increases. Statistic effect size aids in determining whether a difference is real or the result of changing variables. Effect size, power, sample size, and critical significance level are all related to hypothesis testing.
Therefore, a large mean difference and small sample variances. The correct option is B.
The complete options are given below:-
a. A small mean difference and small sample variances
b. A large mean difference and small sample variances
c. A small mean difference and large sample variances
d. A large mean difference and large sample variances
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the midpoint of uv is m(10, 6). one endpoint is v(10, 7). find the coordinates of the other endpoint u.
The coordinates of the other endpoint U are found to be (Xu, Yu) = (10, 5).
What is coordinates of a point?The coordinates are a pair of numbers which characterize the exact location of a point on a cartesian plane through using horizontal and vertical lines.
The x and y values of a point on a graph are usually represented by (x, y). Each point or ordered pair has two coordinates.Now, as per the question.
To find the coordinates of U, use the midpoint formula with the coordinates of points u and v (Xv, Yv) and (Xm, Ym) respectively.
Let's refer to them as (Xu, Yu)
Midpoint formula {(Xv + Xu)/2, (Yv + Yu)/2)}
Fill in the recognized coordinates as needed.
Point V at (10, 7) = (Xv, Yv)
Midpoint, point M at (10, 6) = (Xm, Ym)
For the x coordinates;
(10 + Xu)/2 = 10
Xu = 10.
Similarly for the y coordinate;
(7 + Yu)/2 = 6
7 + Yu = 12
Yu = 5
We can test this by plugging U's coordinates into the midpoint formula.
(10 + 10)/2 = 20/2 = 10
(5 + 7)/2 = 12/2 = 6
Therefore, the coordinates of the are (Xu, Yu) = (10, 5).
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Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles.
What is the probability of selecting a a green or black marble?
During the school year, each student planted
1.2 x 10^2 flowers as part of a community
service project. If there are 1.5 x 10³
students in the school, how many flowers did
they plant in total?
Answer:
180000 total flowers
Step-by-step explanation:
1.2 × 10² = is the amount of flower for each student
1.5 × 10³ = is the total of students in school
Amount of flower × total student = total flowers
(1.2 × 10²) × (1.5 × 10³)
120 × 1500
= 180000
Simplify (-8+b)(5) helppp I’m so confused!
Answer: 5b-40
Step-by-step explanation:
You have to distribute the 5 into both of the variables in the parenthesis
Hope this helps!
Find the equation of the line below
Convert 50 pounds into kilograms
Answer:
22.6796 kg
Step-by-step explanation:
for an approximate result, divide the mass value by 2.205
but the conversion is 50 pounds = 22.696 kilograms
Answer:
22.68 kilograms
Step-by-step explanation:
I found the answer on the internet
