11. Which of the following best describes the range of
y = -2x^ +7?
A. y≤-2
B. y27
C. y≤7
D. All real numbers
Answers
Answer:
D. All real numbers
Step-by-step explanation:
The range of a function is all of the possible x-values (which is easiest to understand if you can view a graph), and the domain of a function is all possible y-values.
So, you could put any x-value into this function (and it would have a corresponding y-value)
The domain [y] is limited, but the range [x] is best described as all real numbers
(if it's hard to remember which is which, d comes before r alphabetically, and x comes before y alphabetically)
Related Questions
the percent yield is calculated as the ratio of the
Answers
The percent yield is calculated as the ratio of the actual yield to the theoretical yield, multiplied by 100.
Percent yield is a measure of how efficient a chemical reaction or process is in producing the desired product.
The formula for percent yield is:
Percent Yield = (Actual Yield / Theoretical Yield) * 100
The actual yield is the amount of product obtained from the reaction or process, typically measured in grams or moles. It represents the actual amount of product obtained in the laboratory.
The theoretical yield, on the other hand, is the maximum amount of product that can be obtained based on stoichiometry and other factors. It is calculated using balanced chemical equations and the starting amounts of reactants.
By dividing the actual yield by the theoretical yield and multiplying by 100, we get the percent yield, which is expressed as a percentage.
This value provides insight into the efficiency of the reaction or process, with a higher percent yield indicating a more efficient conversion of reactants into products.
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How do you find the surface area for this? Anything helps, thank you!
Answers
Answer:
99
Step-by-step explanation:
Take the whole shape apart, now, multiply every part on it using the formulas for each.
The area of the two triangle parts is 7.5+7.5=15
the side on the left would be found by doing 5*6=30
the middle side would be 6*6=36
and the right side would be 6*3=18
Add it all up to get 15+30+36+18=
15+66+18=
81+18=
99
the issue of corporate tax reform has been cause for much debate in the united states. among those in the legislature, 28% are republicans, 50% are democrats and 22% are independents. it is reported that 34% of the republicans, 35% of the democrats and 31% of independents favor some type of corporate tax reform. suppose a member of congress is randomly selected and he/she is found to favor some type of corporate tax reform. what is the probability that this person is a democrat? round your answer to four decimal places. do not round intermediate value(s).
Answers
The probability that a randomly selected member of Congress who favours corporate tax reform is a Democrat is 0.4444, rounded to four decimal places.
To solve this problem, we can use Bayes' theorem. Let D represent the event that the selected member is a Democrat, and R represent the event that the selected member is a Republican, and I represent the event that the selected member is an Independent. Let F represent the event that the selected member favors some type of corporate tax reform. We are given the following probabilities:
P(R) = 0.28, P(D) = 0.50, P(I) = 0.22
P(F|R) = 0.34, P(F|D) = 0.35, P(F|I) = 0.31
We want to find P(D|F), the probability that the selected member is a Democrat given that they favor corporate tax reform. We can use Bayes' theorem:
P(D|F) = P(F|D)P(D) / [P(F|D)P(D) + P(F|R)P(R) + P(F|I)P(I)]
Plugging in the values we know, we get:
P(D|F) = 0.35 * 0.50 / [0.35 * 0.50 + 0.34 * 0.28 + 0.31 * 0.22]
P(D|F) = 0.4444 (rounded to four decimal places)
Therefore, the probability that the selected member is a Democrat given that they favour corporate tax reform is 0.4444.
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help i put like every answer i can think of !
Answers
Answer:
27/8
Step-by-step explanation:
Answer:
27/8
Step-by-step explanation:
6/2+3/8
=(6×4+3)/8
=(24+3)/8
=27/8
Mrs. Jay has 22 games to put in a closet. She puts 4 of the games on the top shelf. She puts the rest of the games on the other 3 shelves. Each of the 3 shelves has the same number of games on it.
Answers
Answer:
6 games on each of the three shelves
Step-by-step explanation:
The total of 22 books minus the 4 books on the top shelf leaves 18 remaining books. You take that 18 and divide by 3 since there are three more shelves. This will leave you with a total of 6 books on each of the other shelves
22 - 4 = 18
18 / 3 = 6
write 10 places in India and write their population in Indian and international system
Answers
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Solution :-
Following are the population of five major cities of India according to the Census of 2011.
1) Mumbai
a) Indian System :
1,24,42,373 - One Crore Twenty Four Lakh Forty Two Thousand Three Hundred Seventy Three.
b) International system :
12,442,373 - Twelve Million Four Hundred Forty Two Thousand Three Hundred Seventy Three.
2) Delhi
a) Indian System :
1,10,34,555 - One Crore Ten Lakh Thirty Four Thousand Five Hundred Fifty Five.
b) International System :
11,034,555 - Eleven Million Thirty Four Thousand Five Hundred Fifty Five.
3) Bangalore
a) Indian System :
84,43,675 - Eighty Four Lakh Forty Three Thousand Six Hundred Seventy Five.
b) International system :
8,443,675 - Eight Million Four Hundred Forty Three Thousand Six Hundred Seventy Five.
4) Hyderabad
a) Indian System :
67,31,790 - Sixty Seven Lakh Thirty One Thousand Seven Hundred Ninety.
b) International System :
6,731,790 - Six Million Seven Hundred Thirty One Thousand Seven Hundred Ninety.
5) Ahmedabad
a) Indian System :
55,77,940 - Fifty Five Lakh Seventy Seven Thousand Nine Hundred Forty.
b) International System :
5,577,940 - Five Million Five Hundred Seventy Seven Thousand Nine Hundred Forty.
Answer:
Mumbai 12,442,373Delhi 11,007,835Bangalore 8,436,675Hyderabad 6,809,970Ahmadabad 5,570,585Chennai 4,681,087Kolkata 4,486,678Surat 4,467,797Pune 3,124,458Jaipur 3,046,163.Step-by-step explanation:
Please a BrainliestComment me if you want to help me find my lost love
A scientist has two solutions, which she has labeled Solution A 60% and Solution B 75% Each contains salt. She knows that Solution A is salt and Solution B is salt. She wants to obtain ounces of a mixture that is salt. How many ounces of each solution should she use
Answers
Answer:
The answer is "180".
Step-by-step explanation:
Please find the complete question in the attached file.
Let's
x = ounces solution of A
y = ounces solution of B
\(x + y = 180 \\\\y = 180 - x\\\\0.60x + 0.85y = 0.75(180)\\\\0.60x + 0.85y = 135\\\\\)
Multiply both sides of the equation by 100 to remove the decimal points.
\(60x + 85y = 13500\\\\60x + 85(180 - x) = 13500\\\\60x + 15300 - 85x = 13500\\\\-25x = -1800\\\\x = 72\ \ ounces\\\\y = 180 - 72 \\\\y = 108 \ \ ounces\\\\\)
what is the area of a circle with a diameter of 15.8 cm? use 3.14 for pi and round your final answer to the nearest hundredth. enter your answer in the box.
Answers
The required area of the circle with diameter 15.8 cm is 196.06 cm^2.
What is circle?A circle is a closed, two-dimensional object where every point in the plane is equally spaced from a central point. The line of reflection symmetry is formed by all lines that traverse the circle. Additionally, every angle has rotational symmetry around the centre.
According to question:To find the area of a circle, we use the formula: pi * (radius)^2. The diameter of the circle is given as 15.8 cm,
so the radius can be calculated by dividing the diameter by 2,
giving us a radius of 15.8 cm / 2
= 7.9 cm.
Plugging the radius into the formula, we get:
pi * (7.9 cm)^2
= 3.14 * 62.41.
Finally, rounding the answer to the nearest hundredth, we get: 62.41 * 3.14
= 196.06 cm^2.
Thus, requi9red answer is 196.06 cm^2.
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Please help with this!!
Answers
Answer:
(4x-6)(4x-6)
Step-by-step explanation:
expand 4x×4x-6×6
Frank needs 3.6 meters of ribbon to
wrap gifts for friends this year. If
each spool contains 90 cm of ribbon,
how many spools will Frank need to
purchase?
Answers
Answer:
4 spools of ribbon
Step-by-step explanation:
One meter = 100 centimeters
3.6 X 100 = 360 cm needed
360/90= 4 spools needed
:))
Answer:
He will have have to buy 1/32 spools
Step-by-step explanation:
Because there is 100meters in each spool
Point $Y$ is on a circle and point $P$ lies outside the circle such that $\overline{PY}$ is tangent to the circle. Point $A$ is on the circle such that segment $\overline{PA}$ meets the circle again at point $B$. If $PA = 15$ and $PY = 9$, then what is $AB$? [asy] unitsize(2 cm); pair A, B, P, Y; Y = dir(130); A = dir(20); B = dir(180); P = extension(Y, Y + rotate(90)*(Y), A, B); draw(Circle((0,0),1)); draw(Y--P--A); label("$A$", A, E); label("$B$", B, SW); label("$P$", P, W); label("$Y$", Y, N); [/asy]
Answers
Answer:
48/5
Step-by-step explanation:
By power of a point on P, we have PB * PA = PY^2. Therefore,
PB = PY^2/PA = 9^2/15 = 27/5. Then AB = PA - PB = 15 - 27/5 = 48/5
Randy wants to save $21 to buy a basketball. He saves $7 each week. Which array represents the number of weeks randy needs to save $21?
Answers
Could someone please help answer this, thank you, will give brainliest, please no spam, (homework help)!
Answers
The answer would be X > -5
The formula s = startroot startfraction s a over 6 endfraction endroot gives the length of the side, s, of a cube with a surface area, sa. how much longer is the side of a cube with a surface area of 180 square meters than a cube with the surface area of 120 square meters? startroot 30 endroot minus 4 startroot 5 endroot meters m startroot 30 endroot minus 2 startroot 5 endroot meters m startroot 10 endroot meters m 2 startroot 15 endroot meters m
Answers
Step-by-step explanation:
so, let me get this straight :
s = sqrt(sa/6)
this is because the surface area of a cube consists of 6 squares (as everybody knows that dice have 6 equal sides).
and the area of a single square is side².
for a cube with sa = 180 m² we have
s = sqrt(180/6) = sqrt(30)
for a cube with sa = 120 m² we have
s = sqrt(120/6) = sqrt(20) = sqrt(4×5) = 2×sqrt(5)
so, the side length of the larger cube is
sqrt(30) - 2×sqrt(5) meters
longer than the side length of the smaller cube.
in other words, the difference between both side lengths.
Answer:
answer above is correct, its B
Step-by-step explanation:
Describe the translation from shape A to
shape B as a vector.
Y
10-
703
9-
8-
7-
6-
5-
4-
3-
2-
1
0
1
23
A
4 5
6 7 8
B
9
10
X
Answers
Step-by-step explanation:
vector equals to 5 times 3 times 5 times 7 times 6 times 8 equals 260 ÷ 5454 equals 2 over 1,000 to 0.554
Line A is perpendicular to Line B. If the slope of Line A is 9/4, what is the slope of line B?
Answers
Answer:
4/9
Step-by-step explanation:
The gradient of the perpendicular line is -1/m
The perpendicular to a given slope is its negative reciprocal. This means the fraction is flipped and multiplied by −1.
A sequence is defined by f(0) = -3, f(n) = f(n-1) + 0.5 for n ≥ 1.
1.
Write the first five terms of this sequence, starting with term 0.
2.
Write the nth term definition of this sequence.
Answers
Answer:
1.
f(0) = -3
f(1) = f(0) + 0.5 = -3 + 0.5 = -2.5
f(2) = f(1) + 0.5 = -2.5 + 0.5 = -2
f(3) = f(2) + 0.5 = -2 + 0.5 = -1.5
f(4) = f(3) + 0.5 = -1.5 + 0.5 = -1
2.
f(n) = 0.5n - 3
This function is linear.
if ∑an and ∑bn are both convergent series with positive terms, then ∑anbn is convergent.T/F
Answers
If the series ∑an and ∑bn are both convergent series with positive terms, then the series ∑anbn is also convergent.
This can be proven using the Comparison Test for series convergence. Since an and bn are both positive terms, we can compare the series ∑anbn with the series ∑an∑bn.
If ∑an and ∑bn are both convergent, then their respective partial sums are bounded. Let's denote the partial sums of ∑an as Sn and the partial sums of ∑bn as Tn.
Then, we have:
0 ≤ Sn ≤ M1 for all n (Sn is bounded)
0 ≤ Tn ≤ M2 for all n (Tn is bounded)
Now, let's consider the partial sums of the series ∑an∑bn:
Pn = a1(T1) + a2(T2) + ... + an(Tn)
Since each term of the series ∑anbn is positive, we can see that each term of Pn is the product of a positive term from ∑an and a positive term from ∑bn.
Using the properties of the partial sums, we have:
0 ≤ Pn ≤ (M1)(Tn) ≤ (M1)(M2)
Hence, if ∑an and ∑bn are both convergent series with positive terms, then ∑anbn is also convergent.
Therefore, the given statement is True.
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a hexadecimal number is a number written in the base 16 number system.
t
f
Answers
True. Hexadecimal numbers are written using the base 16 number system, where digits range from 0 to 9 and A to F. They are commonly used in computer systems for concise representation and easy conversion to binary.
In the hexadecimal number system, there are 16 symbols used to represent values, namely 0-9 and A-F. Each digit in a hexadecimal number represents a multiple of a power of 16.
The symbols 0-9 represent the values 0-9, respectively. The symbols A-F represent the values 10-15, respectively, where A represents 10, B represents 11, C represents 12, D represents 13, E represents 14, and F represents 15.
For example, the hexadecimal number "3F" represents the value (3 * 16^1) + (15 * 16^0) = 48 + 15 = 63 in decimal.
Similarly, the hexadecimal number "AB8" represents the value (10 * 16^2) + (11 * 16^1) + (8 * 16^0) = 2560 + 176 + 8 = 2744 in decimal.
Hexadecimal numbers are commonly used in computer systems, as they provide a convenient way to represent large binary numbers concisely. Each hexadecimal digit corresponds to a four-bit binary number, allowing for easy conversion between binary and hexadecimal representations.
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how many three-digit numbers satisfy the property that the middle digit is the absolute value of half the difference of the first and the last digits?
Answers
A total of \(10 + 4 + 4 = \boxed{18}\) three-digit numbers that satisfy the given property.
Let the three-digit number be written as abc, where a, b, and c are the hundreds, tens, and ones digits, respectively. We want b to be the absolute value of half the difference between a and c. In other words, we want b = \(\left|\frac{a-c}{2}\right|.\)
Since a, b, and c are digits, we know that \(0 \leq a, b, c \leq 9.\) Since b is the absolute value of a number, we know that b is non-negative.
Case 1: \(a \geq c\)
If \(a \geq c\), then\(b = \frac{a-c}{2}\). Since b must be non-negative, we have two
subcases to consider:
Subcase 1: a=c
In this subcase, b=0, which means that the number abc is of the form a00, where \(0 \leq a \leq 9\). There are 10 such numbers.
Subcase 2: a>c
In this subcase, \(b = \frac{a-c}{2}\) is a positive integer. Since a and c must have the same parity (i.e., they are either both even or both odd), we have two
sub-subcases to consider:
Sub-subcase 1: a and c are both even
In this sub-subcase, a and c are both integers between 0 and 8 inclusive (since they are even and cannot be equal to 0 or 9). There are 4 such pairs of values for a and c: (2,0), (4,2), (6,4), and (8,6). For each pair, the value of b is uniquely determined, so there are 4 corresponding numbers abc.
Sub-subcase 2: a and c are both odd
In this sub-subcase, a and c are both integers between 1 and 9 inclusive (since they are odd and cannot be equal to 0 or 8). There are 4 such pairs of values for a and c: (9,7), (7,5) , (5,3), and (3,1). For each pair, the value of b is uniquely determined, so there are 4 corresponding numbers abc.
Case 2: a < c
If a < c, then\(b = \frac{c-a}{2}\). Since b must be non-negative, we have only one
subcase to consider:
Subcase: c- a is even
In this subcase, c-a is an even integer between 2 and 8 inclusive (since it cannot be equal to 0 or 9). There are 4 such even integers: 2, 4, 6, and 8. For each even integer, the values of a and c that satisfy c-a are uniquely determined, and the value of b is then uniquely determined. So there are 4 corresponding numbers abc.
Putting everything together, we have a total of \(10 + 4 + 4 = \boxed{18}\) three-digit numbers that satisfy the given property.
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Help me pls this is a test I need a good grade
Answers
Answer:
81.05/20 is the better deal and the unit rate is $4.05
Step-by-step explanation:
hopefully this helps :)
Answer:
the second deal is better. the unit rate is 4.05/gal
Step-by-step explanation:
106/25=4.24
81/20=4.05
Which of the following transformations preserves the lengths of the sides of the figure, dilation, contraction, reflection, expansion
Answers
Answer:
reflection
Step-by-step explanation:
Reflection is the only type of transformation that does not change the shape or size of the figure.
i have a c please help it will mean alot
Answers
\(\Large\boxed{\tt Answer: 5\frac{2}{3} }\)
\(\tt Step-by-step~explanation:\)
We can solve this by dividing both numbers by four.
\(\tt 8\div4=2\\12\div4=3\\\frac{2}{3}\)
We then add that to 5 to get our answer.
Eric found that about 62% of 80 classmates at school like pop music. However, 70% of his 60 relatives like pop. About how many classmates like pop music? Round to the nearest whole number.
Answers
Answer:
50 classmates
Step-by-step explanation:
80 x 0,62 = 49,6
49,6 ≈ 50
What is AC?
A. 25‾√
B. 35‾√
C. 6
D. 9
Answers
The side length of AC is 6 units for the shown triangle. The correct answer would be an option (C).
What are Similar Triangles?Similar Triangles are defined as two triangles with the same shape, equal pair of corresponding angles, and the same ratio of the corresponding sides.
The right triangle is given in the question, as shown.
AD = 4 cm and BD = 5
In ΔACD and ΔABC
∠ACD = ∠ABC
∠ACD = ∠BAC = 90°
∠CAD = ∠ACD (remaining)
So ΔACD and ΔABC are similar
Hence
AD / AC = AC/ BC
Apply the cross-multiplication operation, and we get
AC² = AD × BC
AC² = 4 × 9
AC² = 36
AC = 6 cm
So, the side length of AC is 6 units.
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Can someone tell me what i did wrong cuz it’s wrong please will name brainliest
Answers
Explanation:
If Figure G was a reflection over the x-axis (which it is), then the bottom right angle would be at 4 on the y axis. In order for it to get to -1, you would need to move Figure G down 5 units. I hope this helps!
Answer:
the awnswer is down three
Step-by-step explanation:
you got the rest right what tip i've done is count the number of units it goes up or down by.
A team of runners is needed to run a 1/3-mile relay race. If each runner must run 1/9 mile, how many runners will be needed?
Answers
Answer:
3 Runners
Step-by-step explanation:
Which fact helps you prove the isosceles triangle theorem, which states that the base angles of any isosceles triangle have equal measure?
1. The base angles of an equilateral triangle have equal measure
2. if two sides of a triangle are equal, the third side must be equal to the others
3.If a triangle is equiangular, then it is equilateral.
4.If one angle of a triangle is larger than another angle, then the side opposite the larger angle is longer than the side opposite the smaller angle.
Answers
Answer:
4. If one angle of a triangle is larger than another angle, then the side opposite the larger angle is longer than the side opposite the smaller angle.
Step-by-step explanation:
Facts about equiangular/equilateral triangles have little bearing on isosceles triangles.
The one relevant fact from the given list is that larger angles are opposite longer sides. This requires you to conclude that equal angles are opposite equal sides, which is the conclusion of the isosceles triangle theorem.
There are 2 different questions please help me!!!!!!!!!
Answers
The required point that lies in the solution of the given inequality is (7, 2). Option D is correct.
Given that,
Two pair of inequality is given 4x + 2y > 8 and x - y ≥ 2.
The graph is a demonstration of curves that gives the relationship between the x and y-axis.
Here,
4x + 2y > 8 - - - - - (1)
x - y ≥ 2 - - - - - - (2)
Plotting the graph of both the inequality to determine the points that lies in the solution.
From comparing the solution the pair is (7, 2).
Thus, the required point that lies in the solution of the given inequality is (7, 2). Option D is correct.
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if two cards are chosen in a standard 52 card deck without replacement what is the probability that one of the cards is a heart and the other is a spades
Answers
When two cards are selected from a standard deck of 52 cards without replacement, the probability that one is a heart and the other is a spade can be calculated using the following steps:
Step 1: Determine the probability of selecting a heart card. There are 13 heart cards in a standard deck of 52 cards. Thus, the probability of selecting a heart card on the first draw is 13/52.
Step 2: Determine the probability of selecting a spade card. After one card has been selected and removed from the deck, there are 51 cards left in the deck. Among these cards, there are 13 spades cards. Therefore, the probability of selecting a spade card on the second draw is 13/51.
Step 3: Determine the probability of selecting a heart card and a spade card. The probability of selecting a heart card on the first draw and a spade card on the second draw is the product of the probabilities calculated in Step 1 and Step 2, respectively: P(heart and spade) = P(heart) × P(spade) = (13/52) × (13/51) = 169/2652 = 0.0637.
Step 4: Determine the probability of selecting a spade card and a heart card. The probability of selecting a spade card on the first draw and a heart card on the second draw is the same as the probability of selecting a heart card on the first draw and a spade card on the second draw. Therefore: P(spade and heart) = P(heart and spade) = 0.0637.
Step 5: Determine the total probability. The total probability of selecting one heart card and one spade card, regardless of the order in which they are selected, is the sum of the probabilities calculated in Steps 3 and 4:P(one heart and one spade) = P(heart and spade) + P(spade and heart) = 0.0637 + 0.0637 = 0.1274.
Thus, the probability that one of the cards is a heart and the other is a spade is 0.1274 or 12.74%.
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