Answer:
50%
Step-by-step explanation:
Someone help me pliz
Answer:
B(2, - 1 )
Step-by-step explanation:
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
( \(\frac{x_{1}+x_{2} }{2}\), \(\frac{y_{1}+y_{2} }{2}\) )
let the coordinates of B = (x, y )
Then using the midpoint formula, equate to each coordinate of the given midpoint, that is
(x₁, y₁ ) = A(4, 3) and (x₂, y₂ ) = B(x, y) , then
\(\frac{4+x}{2}\) = 3 ( multiply both sides by 2 )
4 + x = 6 ( subtract 4 from both sides )\
x = 2
\(\frac{3+y}{2}\) = 1 ( multiply both sides by 2 )
3 + x = 2 ( subtract 3 from both sides )
x = - 1
Coordinates of B = (2, - 1 )
determine whether each expression has a value of 1 or other than 1
-8x8
2x 1/2
a/b x a/b
-2/3x-3/2
b/a x a/b
The solution is,
-8x8 = -1
2x 1/2 = 1
a/b x a/b = a²/b²
-2/3x-3/2 = 1
b/a x a/b = 1
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
given that, we have to determine whether each expression has a value of 1 or other than 1
now, here, we have,
-8x8
2x 1/2
a/b x a/b
-2/3x-3/2
b/a x a/b
all of them , is have to multiply.
so, we have,
-8x8 = -1
2x 1/2 = 1
a/b x a/b = a²/b²
-2/3x-3/2 = 1
b/a x a/b = 1
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Find the surface area of the rectangular prism
2km
4km
6km
Answer:
88km is your answer
Step-by-step explanation:
brainlest pls
Guys I need help: In which set of ordered pairs, ( x , y ) , is y NOT a function of x? A. { ( 6 , 6 ) , ( 1 , 1 ) , ( 4 , 4 ) } B. { ( 1 , 4 ) , ( 6 , 4 ) } C. { ( 6 , 1 ) , ( 1 , 6 ) , ( 1 , 4 ) } D. { ( 1 , 4 ) , ( 4 , 1 ) }
Answer:
A
Step-by-step explanation:
Witch of the following numbers are greater then or equal to 4/7
A 2/5
B .57
C 2/3
Answer:
2/3
Step-by-step explanation:
Its simple. Ona calculator, if you type in these fractions, you can compare then decimal form values and see which is the biggest:
4/7 = .5714
2/5 = .04
.5/7.0714
2/3 = .66667
Since .6667 is greater than .5714, 2/3 is greater than 4/7
Answer:
B: .57
C: 2/3
Step-by-step explanation:
Divide 4/7 = .57
A: divide 2/5 = 0.4, which is less than 4/7 so we won't include this number as one of the answers
B: .57, which is equal to 4/7
C: divide 2/3 = 0.67, which is greater than 4/7
This question has two answers (B and C), because it is asking which numbers are greater than or equal to.
How to find this? Please help me.
Answer:
b = 9 cm
Step-by-step explanation:
the area (A) of a triangle is calculated as
A = \(\frac{1}{2}\) bh ( b is the base and h the height )
here h = 2b , then
\(\frac{1}{2}\) × b × 2b = 81
\(\frac{1}{2}\) × 2b² = 81
b² = 81 ( take square root of both sides )
b = \(\sqrt{81}\) = 9 cm
Set both given equations equal to zero, then combine them into one standard form equation. x + 6 = 0 and y - 3 = 4 x + 6 = 0 → y - 3 = 4 → Combined equation
The standard form of the given equation is; x + (-y) = -5
How to write a linear combined equation in standard form?
We are given the equations;
x + 6 = 0 -----(1)
y - 3 = 4 -----(2)
Add 4 to both sides of equation 2 to get;
y - 3 + 4 = 0
y + 1 = 0 -----(3)
Put y + 1 for 0 in eq 1 to get;
x + 6 = y + 1
The standard form of an equation is expressed in the form;
Ax + By = C
Thus;
x + 6 = y + 1 can be rewritten as;
x + (-y) = 1 - 6
x + (-y) = -5
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Is this congruent and how is this congruent
If V is a finite-dimensional real vector space, and if P1, P2:V → V are projections, Show that they are equivalent:
a) P1 + P2 is a projection. b) P1 ∘ P2 = P2 ∘ P1 = 0.
P1 + P2 is a projection and that P1 P2 = P2 P1 = 0, we have thus established that P1 and P2 are equivalent.
To show that the projections P1 and P2 are equivalent given the conditions, we truly need to display that P1 + P2 is similarly a projection and that P1 ∘ P2 = P2 ∘ P1 = 0.
a) We should show that P1 + P2 has the properties of a projection to exhibit that it is a projection.
To start, that's what we note (P1 + P2)(P1 + P2) approaches P1P1, P1P2, P2P1, and P2P2.
Since P1P1 and P2P2 are projections, they are identical.
Additionally, because P1 and P2 are linear, P2P1 and P1P2 are linear transformations.
Therefore, (P1 + P2)(P1 + P2) = P1 + P1 + P2. To demonstrate that P1 + P2 is a projection, we require (P1 + P2)(P1 + P2) = P1 + P2.
Consequently, P1 + P1 + P2 = P1 + P2.
We achieve P1P2 + P2P1 = 0 by removing terms and reworking the equation.
b) In order to demonstrate that P1 P2 = P2 P1 = 0, we must demonstrate that the composition of P1 and P2 is the zero transformation.
First of all, since the formation of direct changes is also straight, we can see that P1 P2 is a straight change. P2 P1 is a comparable straight change.
We should show that for any vector v in V, (P1 P2)(v) = (P2 P1)(v) = 0. We will be able to demonstrate that P1 - P2 - P1 - 0 as a result of this.
If v is a vector access to V that is inconsistent, then (P1 P2)(v) equals P1 (P2(v)) and (P2 P1)(v) equals P2 (P1(v)).
Because P1 and P2 are projections, they are located in their respective fixed subspaces, which are invariant under the projections.
Since the two of them project any vector onto their individual fixed subspaces, P1(P2(v)) and P2(P1(v)) are both zero.
Consequently, we have shown that P1 + P2 = P2 P1 = 0.
By demonstrating that P1 + P2 is a projection and that P1 P2 = P2 P1 = 0, we have thus established that P1 and P2 are equivalent.
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You had $23 to spend on three raffle tickets. After buying them you had $17.
How much did each raffle ticket cost?
Answer:
$2
Step-by-step explanation:
\(23-3x=17\)
\(-3x=-6\)
\(x=2\)
Therefore, each raffle ticket cost $2.
Answer:
Each raffle ticket cost $2.
Step-by-step explanation:
Figure out how much you spent on all the tickets
23-17= 6
Divide the amount of money you spent by the amount of tickets bought to get the unit price
6/3=2
Hope this helps:) Have a good day!
m-3/18=11/18 What is m??
Answer:
I think m is a variable
Step-by-step explanation:
because a variable is a letter representing a unknown amount
Step-by-step explanation:
hope this will help you.
What is the result of adding these two equations?
4x-4y=-2
-9x-4y=-3
Determine the solutions of the equation:
|1/4x+7|-3=24
x= -136 and x = 136
x= -136 and x = 80
x=-112 and x = 80
x= -80 and x = 80
Answer:
x = -136 and x = 80
Step-by-step explanation:
|(1/4)x +7| - 3 = 24
|(1/4)x + 7| = 27 (transpose 3 and it becomes positive)
now:
(1/4)x + 7 = 27 (first solution)
(1/4)x = 20
x/4 = 20
x = 20×4
x = 80
(1/4)x + 7 = -27 (second solution)
(1/4)x = -34
x/4 = -34
x = -34×4
x = -136
Test: PRACTICE TEST for Final Exam (RE...This question: 2 point(s) possibleAnn and Tom want to establish a fund for their grandson's college education. What lump sum must they deposit at a 10% annual interest rate, compounded annually. In order to have $20,000 in the fund at the end of 10 years?They should deposits(Round up to the nearest cent)
Answer
They should deposit $7710.99
Explanation
Using compound interest formula,
\(A=P(1+\frac{r}{n})^{nt}\)Where:
A = Amount = $20,000
P = Principal = ?
r = Interesr rate = 10% = 0.1
n = 1
t = 10
\(\begin{gathered} \Rightarrow20000=P(1+0.1)^{1\times10} \\ 20000=P(1.1)^{10} \\ 20000=P(2.5937) \\ \text{Divide both sides by 2.5937} \\ \frac{P\mleft(2.5937\mright)}{2.5937}=\frac{20000}{2.5937} \\ P=7710.9920 \\ \text{To the nearest cent, the answer is} \\ P=7710.99 \end{gathered}\)If the region enclosed by the -axis, the line y = 2 , and the curve y = โx is revolved about the -axis, the volume of the solid generated is
The volume of the solid generated by revolving the triangle about the -axis is (8π/3).
The region enclosed by the -axis, the line y = 2, and the curve y = -x is a triangle with base 2 and height 2.
To find the volume of the solid generated by revolving this triangle about the -axis, we can use the method of cylindrical shells.
The volume of each shell is given by the formula:
V = 2πr * h * δr
where r is the distance from the -axis to the shell, h is the height of the shell, and δr is the thickness of the shell.
We can express r as a function of y, since each shell corresponds to a vertical slice of the triangle:
r = y
The height of each shell is given by the difference between the -axis and the curve y = -x:
h = 2 - (-x) = 2 + x
Finally, the thickness of each shell is δr = dy.
Therefore, the volume of the solid is:
V = ∫[0,2] 2πy * (2 + y) dy
= 2π ∫[0,2] (2y + y^2) dy
= 2π [y^2 + (1/3)y^3] |[0,2]
= (8π/3)
Therefore, the volume of the solid generated by revolving the triangle about the -axis is (8π/3).
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Consider the expression 8ab+3b+16-4a How many terms are there , How many factors are in the first term , which term is a constant ?
Answer:
First there are 4 terms. I think/believe that there are 3 factors in the first term. And the answer to the last question is 16 or term 3.
Step-by-step explanation:
I hope this helps, plz mark me as brainlyest anyways I hope you get a good score on your test!!
Answer:
a. There are 4 terms in the expression
b. There are 3 factors in the first term.
c. The constant is 16.
8ab + 3b + 16 - 4a
A term is any signed number, a variable, or a constant multiplied by a
variable or variables.
Therefore, the terms are 8ab, 3b, 16, and -4a. The terms are 4 in numbers.
The first term is 8ab .The first term has the factors 8 , a and b. This means the first term have 3 factors.
The term that is a constant is 16
Step-by-step explanation:
Please answer this geometry proof as soon as possible!
Answer:
In order to get an answer you have to post a question.
Step-by-step explanation:
A movie theater has a seating capacity of 323. The theater charges $5. 00 for children, $7. 00 for
students, and $12. 00 of adults. There are half as many adults as there are children. If the total ticket
sales was $ 2348, How many children, students, and adults attended?
_____children attended.
_____students attended.
_____adults attended.
673 children, 11 students, and 336 adults attended the movie.
How many children attended the movie?
How many students attended the movie?
How many adults attended the movie?
How to calculate the total ticket sales?
How to use equations to solve a word problem?
How to check if the obtained solution is valid?
Let's begin by defining some variables:
Let C be the number of children attending the movie.
Let S be the number of students attending the movie.
Let A be the number of adults attending the movie.
We know that the theater has a seating capacity of 323, so we can write an equation that relates the number of people attending the movie to the seating capacity:
C + S + A = 323
We also know that the theater charges $5.00 for children, $7.00 for students, and $12.00 for adults, and that there are half as many adults as there are children. Using this information, we can write another equation that relates the total ticket sales to the number of people in each category:
5C + 7S + 12A = 2348
We can use the fact that there are half as many adults as children to express A in terms of C:
A = 0.5C
Substituting this into the first equation, we get:
C + S + 0.5C = 323
Simplifying, we get:
1.5C + S = 323
Now we have two equations with two unknowns (C and S), which we can solve to find the values of these variables:
1.5C + S = 323 (equation 1)
5C + 7S = 2348 (equation 2)
Multiplying equation 1 by 5 and subtracting it from equation 2, we can eliminate S and solve for C:
5(1.5C + S) - 7S = 7.5C + 5S - 7S = 2348 - 5(323) = 1683
2.5C = 1683
C = 673.2
Since C must be a whole number, we can round down to the nearest integer:
C = 673
Now we can use this value of C to find S:
1.5C + S = 323
1.5(673) + S = 323
S = 323 - 1010.5
S = 10.5
Again, since S must be a whole number, we round up to the nearest integer:
S = 11
Finally, we can use the equation A = 0.5C to find A:
A = 0.5C = 0.5(673) = 336.5
Rounding down to the nearest integer, we get:
A = 336
Therefore, the number of children, students, and adults who attended the movie are:
673 children, 11 students, and 336 adults.
what is the defining feature of an experiment? group of answer choices intentional control of factors that might affect the relationship between the independent and dependent variables observation of natural variation of the independent variable intentional manipulation of the independent variable observation of natural variation of the dependent variable
The defining feature of an experiment are manipulation, control , random assignment, and random selection.
Experiment:
Basically, any procedure that can be infinitely repeated and has a well-defined set of possible outcomes, known as the sample space or experiment.
Given,
Here we have to identify the defining feature of the experiment.
While we looking into the given question, the true experiments have four elements: manipulation, control , random assignment, and random selection.
And the most important of these elements are manipulation and control. Where Manipulation means that something is purposefully changed by the researcher in the environment.
Therefore, the key defining feature of an experiment is that it there is active manipulation of independent variables and monitoring of dependent variables.
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What is the solution to equation?
4x+5=2x-3
what term is used to describe the shape of a distribution in which the scores pile up on the left-hand side of the graph and taper off to the right? group of answer choices normal negatively skewed positively skewed symmetrical
The correct option (b) Negative skewness. it refers to longer or fatter tail on left side of the distribution.
Negative skewness is a type of distribution in which there are more values to the left of the mean than to the right. it refers that mean > median and the tail of the distribution is on the left. This type of distribution is also referred to as left lean.
Negative skewness is caused by the presence of extreme values or outliers on the left side of the distribution. All these extreme values can cause the data to deviate from the mean that results in negative deviation. The presence of outliers can affect the variance of the data too. In the situations with high outliers, as the outliers form the mean of most of the data therefore, the variance of data is higher than the normal.
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A.2/7
B.3/7
C.5/7
D.4/7
Answer:
The C indicates the opposite of that So it would be 4/7Which answer choice is NOT equivalent to 4(x + 3)
a. 4x + 12
b. x + 3x + (4 + 3)
c. x + x + x + x +12
d. 2x + 2x + (4 x 3)
Answer: b
Step-by-step explanation:
Combine the terms after removing the parentheses.
Reference equation: 4x + 12
a. 4x + 12
b. 4X +7
c. 4x + 12
d. 4x + 12
Sam's Mom makes sandwiches, s, for lunch everyday for his brothers and sisters. There are 15 slices of bread, b, left in the packet. Identify the independent and dependent variables in this scenario.
Answer:
b= independent S=dependent
can someone please help me with this I'm being timed help asap
Answer:
for every x the y moves -4
Step-by-step explanation:
Answer please thank you
Answer:
A is -3
Step-by-step explanation:
I know it’s kinda late but I hope this helps! And please give brainliest!
Which graph represents the inequality y> 1-3x?
The graph of the inequality y > 1 - 3x is shown in figure.
What is Inequality?A relation by which we can compare two or more mathematical expression is called an inequality.
Given that;
The equation of inequality is,
⇒ y > 1 - 3x
Now,
Since, The inequality is,
⇒ y > 1 - 3x
Hence, The graph of inequality y > 1 - 3x is shown in image by shaded ''red region.''
Thus, The red region of the graph is shows the graph of inequality
y > 1 - 3x.
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A carton of grapefruit juice displays the nutritional information shown below. How many grams of sugar are there in a 200 ml glass of juice? Grapefruit juice 250 ml contains Carbohydrate Sugar Protein 19.5 g | 16.5 g | 1.5 g
Answer:
13.2 g
Step-by-step explanation:
let x = grams sugar in a 200 ml glass
16.5 g sugar / 250 ml = x g sugar / 200 ml
x(250) = (16.5)(200)
x = (16.5)(200) / (250) = 3300 / 250 = 13.2
Answer: there are 13.2 g sugar in a 200 ml glass of juice
12. Which of the following is another way to
classify a scalene triangle with one angle
greater than 90°?
A- acute
B - obtuse
C - right
D equilateral
Answer:
The correct answer would be obtuse
Step-by-step explanation:
An obtuse angle is an angle that has a measure of more than 90°
So if a triangle has an angle greater than 90° it would be classified as an obtuse triangle
Can someone help me with number 13 I need the equation fast
The expression is given as
\((-2+7i)(-1-6i)(6+3i)\)Solve and simplify the expression by opening the brackets
\((2+12i-7i-42i^2)(6+3i)\)\((2+5i+42)(6+3i)=(5i+44)(6+3i)_{}\)\(30i+15i^2+264+132i\)\(162i+264-15=162i+249\)Hence the answer is
\(162i+249\)